PROM

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   PROMREF V1.96 - 20200525
(original version V1.6 Jan 13,1999, by Al Kossow, available from http://web.archive.org/web/20020326090742/http://www.spies.com:80/arcade/schematics/PromRef.txt )
(special thanks to GURU for maintaining and expanding it for many years. http://members.iinet.net.au/~lantra9jp1_nbn/gurudumps/ )
(many infos and markings added thanks to Yasuhiro Ogawa)

-----------------------------------------------------------------------------------------------------
Quick equivalence table (most common)

           ns     Fujitsu     Signet    AMD     MMI       Nation   TI         Harris    Farch  Inter Rayth  Intel Russian    NEC     Mitsubishi  OKI
  32x8 OC (50) == 7111        82S23     27S18   6330-1    74S188   18SA30     7602-5           5600                          uPB400              MSL8216
  32x8 OC (50) == 7056                  27S08
  32x8 OC (25) ==             82S23A    27S18A  63S080
  32x8 OC (25) ==                               63LS080
  32x8 OC (15) ==                                         87S188
  32x8 TS (50) == 7112        82S123    27S19   6331-1    74S288   18S030     7603-5           5610                          uPB410  M54730      MSL8215
  32x8 TS (50) == 7051                  27S09                      74188
  32x8 TS (25) ==             82S123A   27S19A  63S081    74S288
  32x8 TS (25) ==                               63LS081
  32x8 TS (15) ==                                         87S288
  64x8 OC (75) ==                                                  54186
  64x8 OC (75) ==                                                  74186
 256x4 OC (50) == 7113(7057), 82S126,   27S20,  6300-1,   74S387,  24SA10,    7610-5,   9341C, 5603, 29660, 3601, KR556RT4
 256x4 OC (25) ==             82S126A,  27S20A, 63S140,                       7610A
 256x4 OC (75) ==                                                  54187
 256x4 OC (75) ==                                                  74187
 256x4 TS (50) == 7114(7052), 82S129,   27S21,  6301-1,   74S287,  24S10,     7611-5,   93427, 5623, 29661, 3621, KR556RT11
 256x4 TS (25) ==             82S129A,  27S21A, 63S141,                       7611A
 512x4 OC (50) == 7115,       82S130,   27S12,  6305-1,   74S570,             7620-5,   93436, 5604  29610, 3602
 512x4 OC (33) ==             82S130A,  27S12A, 63S240,   74S570A,            7620A-5,                      3602A
 512x4 TS (50) == 7116(7053), 82S131,   27S13,  6306-1,   74S571,             7621-5,   93446, 5624, 29611, 3622
 512x4 TS (30) ==             82S131A,  27S13A, 63S241,   74S571A,            7621A,                        3622A
 256x8 OC      == 7117,                                   74S470,  18SA22
 256x8 TS (100)==             82LS135,                    74S471,  28L22
 256x8 TS (45) == 7118,       82S135,           6309-1,            28S22,                                         KR558RR1
1024x4 OC      == 7121,       82S136    27S32,            74S572,             7642,                               KR556RT12
1024x4 TS (60) == 7122(7054), 82S137,   27S33,  6353-1,   74S573,  24S41,     7643-5,   93453,       29641, 3625, KR556RT13
1024x4 TS (45) ==             82S137A,          63S441,   74S573A,            7643A
1024x4 TS (35) ==             82S137B,  27S33A, 63S441A,  74S573B,            7643B
 512x8 OC      == 7123,       82s146,   27S28,            74S473,             7648
 512x8 TS (60) == 7124,       82S147,           6349-1,   74S472,  28S42,     7649-5,                29621
 512x8 TS (45) ==             82S147A,  27S29,  6349-2,   74S472A,            7649A-5,               29621A
 512x8 OC      == 7125,       82S140,           6340-1                        7640,                         3604, KR556RT5
 512x8 TS (90) == 7126,       82S141,   27S31,  6341-1,   74S474,  28S46,     7641-5,   93448,       29625, 3624, KR556RT17, P0Z019
2048x4 OC      == 7127,       82S184,   27S184,           87S184,             7684
2048x4 TS (100)== 7128,       82S185,                                         7685-5,   93515,       29651        KR556RT14
2048x4 TS (50) ==             82S185A,  27S185, 63S841,   87S185,  24S81,     7685A,                 29651A
2048x4 TS (45) ==             82S185B,                    87S185A, 24S81-55
1024x8 OC      == 7131,       82S180,   27s180, 6380,     87S180,             7680,     93450
1024x8 TS (70) == 7132,       82S181,   27S181, 6381-1,   74S450,  28S86,     7681-5,   93451,       29631, 3628
1024x8 TS (55) ==             82S181A,          6381-2,   87S181,  28S86-60,  7681A,                 29631A
1024x8 TS (30) ==             82S181C,          63S881,   87S181A
4096x4 OC      ==                       27S40
4096x4 TS (45) == 7152,       82S195,   27S41,  63S1641,  87S195,             76165-5,  93513
4096x4 TS (35) ==             82S195A,  27S41A, 63S1641A, 87S195A
4096x4 TS (25) ==             82S195B
2048x8 OC      == 7137,       82S190,   27S190,           87S190,             76160
2048x8 TS (80) == 7138,       82S191,                     87S191,  28S166,    76161,    93511,       29681, 3636, KR556RT18
2048x8 TS (55) ==             82S191A,  27S191, 63S1681,  87S191A, 28S166-55, 76161A,                29681A
2048x8 TS (35) ==             82S191C,  27S191A
4096x8 TS (70) == 7142,       82S321,                                         76321-5,               29671, 3632
4096x8 TS (45) ==             82HS321,  27S43,  63S3281,  87S321,                                    29671A
4096x8 TS (35) ==             82HS321A, 27S43A, 63S3281A
4096x8 TS (30) ==             82HS321B
8192x8 TS (55) == 7144,       82S641,   27S49,                                76641-5,  93565
8192x8 TS (45) ==             82S641A,  27S49A,                               76641A-5, 93565A
8192x8 TS (35) ==             82S641B

note:
OC (Open Collector)   TS (Tri-State)

-----------------------------------------------------------------------------------------------------  
           ns     Fujitsu     Signet    AMD     MMI       Nation   TI         Harris    Farch  Inter Rayth  Intel Russian    NEC     Mitsubishi  OKI
  32x8 OC (50) == 7111        82S23     27S18   6330-1    74S188   18SA30     7602-5           5600                          uPB400              MSL8216
  32x8 OC (50) == 7056                  27S08               8577
  32x8 OC (25) ==             82S23A    27S18A  63S080
  32x8 OC (25) ==                               63LS080
  32x8 OC (15) ==                                         87S188
  32x8 TS (50) == 7112        82S123    27S19   6331-1    74S288   18S030     7603-5           5610                          uPB410  M54730      MSL8215
  32x8 TS (50) == 7051                  27S09               8578
  32x8 TS (25) ==             82S123A   27S19A  63S081    74S288
  32x8 TS (25) ==                               63LS081
  32x8 TS (15) ==                                         87S288
Detailed pinout
32*8 = 256 bit
   +--\/--+
D0 |1   16| Vcc
D1 |2   15| *CE
D2 |3   14| A4
D3 |4   13| A3
D4 |5   12| A2
D5 |6   11| A1
D6 |7   10| A0
GND|8    9| D7
   +------+
List of chip markings:
AMD       : Am27S08, Am27S18, Am27S18A, Am27S09, Am27S19, Am27S19A, Am27LS08, Am27LS18, Am27LS09, Am27LS19
Fujitsu   : MB7056, MB7111E, MB7111H, MB7111L, MB7051, MB7112E, MB7112E-W, MB7112H
Harris    : HM76LS03-5, HM7602-5, HM7603-5
Intersil  : IM5600, IM5610
Mitsubishi: M54730
MMI       : 63LS080, 63LS081, 63S080, 63S081, 6330-1, 6331-1
NEC       : uPB400C/D, uPB400C/D-1, uPB410C/D, uPB410C/D-1
National S: DM74S188, DM74S288, DM87S188, DM87S288, DM8577, DM8578
Oki       : MSL8216, MSL8515
Signetics : N82S23, N82S123, N82S23A, N82S123A, N82US23, N82US123
TI        : TBP18SA030, TBP18S030, TBP38L030-25, TBP38S030-25, TBP38SA030-25


-----------------------------------------------------------------------------------------------------
           ns     Fujitsu     Signet    AMD     MMI       Nation   TI         Harris    Farch  Inter Rayth  Intel Russian    NEC     Mitsubishi  OKI
  64x8 OC (75) ==                                                  54186
  64x8 OC (75) ==                                                  74186
Detailed pinout
64*8 = 512 bit
    +--\/--+
  NC|1   24| Vcc
  NC|2   23| GND2
   A|3   22| Y1
   B|4   21| Y2
   C|5   20| Y3
 ME1|6   19| Y4
 ME2|7   18| Y5
   D|8   17| Y6
   E|9   16| Y7
   F|10  15| Y8
GND1|11  14| Y9
  NC|12  13| GND2
    +------+
List of chip markings:
TI        : SN54186J, SN74186J, SN74186N
 
  
  
  
  -----------------------------------------------------------------------------------------------------  
           ns     Fujitsu     Signet    AMD     MMI       Nation   TI         Harris    Farch  Inter Rayth  Intel Russian    NEC     Mitsubishi  OKI

 256x4 OC (50) == 7113(7057), 82S126,   27S20,  6300-1,   74S387,  24SA10,    7610-5,   9341C, 5603, 29660, 3601, KR556RT4
 256x4 OC (25) ==             82S126a,  27S20a, 63S140,                       7610A
 256x4 TS (50) == 7114(7052), 82S129,   27S21,  6301-1,   74S287,  24S10,     7611-5,   93427, 5623, 29661, 3621, KR556RT11
 256x4 TS (25) ==             82S129A,  27S21A, 63S141,                       7611A
Detailed pinout
256*4 = 1.024 bit
   +--\/--+
A6 |1   16| Vcc
A5 |2   15| A7
A4 |3   14| CS2/
A3 |4   13| CS1/
A0 |5   12| O0
A1 |6   11| O1
A2 |7   10| O2
GND|8    9| O3
   +------+
List of chip markings:
MMI       : 63LS140, 63LS141, 63PS140, 63PS141, 63S140, 63S141
AMD       : Am27S10, Am27S11, Am27S20, Am27S21, Am27S20A, Am27S21A
NS        : DM74S287, DM74S387, DM74S287A, DM74S387A
Harris    : HM7610-5, HM7610A, HM7611-5, HM7611A
Intersil  : IM5603, IM56S23, IM5603A, IM5623, IM5623A
Mitsubishi: M54700
Fujitsu   : MB7052, MB7057, MB7113E, MB7113H, MB7113L, MB7114E, MB7114E-W, MB7114H, MB7114L, MB7114L-W
Oki       : MBL8520A, MBL8521A
Signetics : N82S27, N82S126, N82S129
TI        : SN74S287, SN74S387
NEC       : uPB403D, uPB403C/D-1, uPB403C/D-2, uPB423C/D, uPB423C/D-1, uPB423C/D-2
FSC       : 93417, 93427
TESLA     : MH74S287


-----------------------------------------------------------------------------------------------------
           ns     Fujitsu     Signet    AMD     MMI       Nation   TI         Harris    Farch  Inter Rayth  Intel Russian    NEC     Mitsubishi  OKI
 512x4 OC (50) == 7115,       82S130,   27S12,  6305-1,   74S570,             7620-5,   93436, 5604  29610, 3602
 512x4 OC (33) ==             82S130A,  27S12A, 63S240,   74S570A,            7620A-5,                      3602A
 512x4 TS (50) == 7116(7053), 82S131,   27S13,  6306-1,   74S571,             7621-5,   93446, 5624, 29611, 3622
 512x4 TS (30) ==             82S131A,  27S13A, 63S241,   74S571A,            7621A,                        3622A
Detailed pinout
512*4 = 2.048 bit
   +--\/--+
A6 |1   16| Vcc
A5 |2   15| A7
A4 |3   14| A8
A3 |4   13| CS/
A0 |5   12| O0
A1 |6   11| O1
A2 |7   10| O2
GND|8    9| O3
   +------+
List of chip markings:
MMI       : 63LS240, 63LS241, 63PS240, 63PS241, 63S240, 63S241, 6305-1, 6506-1
Intel     : 3602, 3602A, 3602A-2, 3622, 3622A, 3622A-2
AMD       : Am27S12, Am27S13, Am27S12A, Am27S13A
Raytheon  : 29610, 29611, 29612, 29613
NS        : DM74S570, DM74S571
Harris    : HM7620-5, HM7620A-5, HM7621-5
Intersil  : IM56S04, IM56S24, IM5604, IM5624
Fujitsu   : MB7053, MB7058, MB7115E, MB7115H, MB7115L, MB7116E, MB7116E-W, MB7116H, MB7116L, MB7116L-W, MB7116Y
Motorola  : MCM7620, MCM7621
Signetics : N82S130, N82S131
NEC       : uPB412C/D-1
FSC       : 93436, 93446



256*8
   +--\/--+
A0 |1   20| Vcc
A1 |2   19| A7
A2 |3   18| A6
A3 |4   17| A5
A4 |5   16| CS1/
O0 |6   15| CS2/(latch (DM87S221/222 only))
O1 |7   14| O7
O2 |8   13| O6
O3 |9   12| O5
GND|10  11| O4
   +------+
MMI       : 63LS280, 63LS281, 63PS280, 63PS281, 63S280, 63S281, 6308-1, 6309-1
Raytheon  : 29600, 29601
NS        : DM74S470, DM74S471, DM87S221, DM87S222
Fujitsu   : MB7117E, MB7117H, MB7117L, MB7118E, MB7118E-W, MB7118H, MB7118L, MB7118L-W, MB7118Y
National  : SN74S470, SN74S471
TI        : TBP38SA22-30, TBP38S22-18, TBP38S22-25, TBP38SA22-30, 18S22, 18SA22, 18L22
NEC       : uPB421C/D, uPB421C/D-1
Signetics : 82S135, 82LS135
USSR      : KR558RR1


256*8
   +--\/--+
A7 |1   24| Vcc
A6 |2   23| NC
A5 |3   22| NC
A4 |4   21| CS0/
A3 |5   20| CS1/
A2 |6   19| CS2
A1 |7   18| CS3
A0 |8   17| O7
O0 |9   16| O6
O1 |10  15| O5
O2 |11  14| O4
GND|12  13| O3
   +------+
MMI       : 6335-1, 6336-1
Harris    : HM7628-5, HM7629-5



256*8
   +--\/--+
A2 |1   24| NC
A1 |2   23| NC
A0 |3   22| NC
O0 |4   21| A3
O1 |5   20| A4
O2 |6   19| A5
O3 |7   18| A6
O4 |8   17| A7
O5 |9   16| Vcc
O6 |10  15| NC
O7 |11  14| CS0/
GND|12  13| CS1/
   +------+
MMI       : 63135-1 (TS, 90ns, 8address, 2CE)



256*8 (latched)
   +--\/--+
A3 |1   24| Vcc
A4 |2   23| A2
-  |3   22| A1
A5 |4   21| A0
A6 |5   20| CE1/
A7 |6   19| CE2
O1 |7   18| STB
02 |8   17| O8
O3 |9   16| O7
O4 |10  15| O6
FE2|11  14| O5
GND|12  13| FE1
   +------+
Signetics : 82S114



1024*4
    +--\/--+
 A6 |1   18| Vcc
 A5 |2   17| A7
 A4 |3   16| A8
 A3 |4   15| A9
 A0 |5   14| O0
 A1 |6   13| O1
 A2 |7   12| O2
CS1/|8   11| O3
 GND|9   10| CS0/
    +------+
MMI       : 63LS440, 63LS441, 63PS440, 63PS441, 63S440, 63S441, 6350-1 (OC, 60ns, 10address, 2CE), 6351-1 (TS, 60ns, 10address, 2CE), 6352-1 (OC, 60ns, 10address, 2CE), 6352-1, 6353-1 (TS, 60ns, 10address, 2CE)
Intel     : 3605, 3605-2, 3625, 3625-2
AMD       : Am27S32A, Am27S33A
NS        : DM74S572, DM74S573, SN54S476, SN74S476, SN54S477, SN74S477
Harris    : HM7642-5, HM7642P-5, HM7643-5, HM7643P-5
Hitachi   : HN25044, HN25045
Intersil  : IM56S06, IM56S26
Sharp     : LH5606, LH5626
Mitsubishi: M54740A/S, M54741A/S
Fujitsu   : MB7054, MB7059, MB7121E, MB7121H, MB7121L, MB7121N, MB7122E, MB7122E-W, MB7122H, MB7122L, MB7122L-W, MB7122N, MB7122Y
Motorola  : MCM7642, MCM7643
Signetics : N82HS137, N82HS137A
TI        : TBP24S41, TBP24SA41
NEC       : uPB406C/D, uPB406C/D-E, uPB406C/D-1, uPB406C/D-2, uPB406C/D-3, uPB426C/D, uPB426C/D-E, uPB426C/D-1, uPB426C/D-2, uPB426C/D-3
FSC       : 93415, 93452, 93453



512*8
   +--\/--+
A0 |1   20| Vcc
A1 |2   19| A8
A2 |3   18| A7
A3 |4   17| A6
A4 |5   16| A5
O0 |6   15| CS/
O1 |7   14| O7
O2 |8   13| O6
O3 |9   12| O5
GND|10  11| O4
   +------+
MMI       : 63LS480, 63LS481, 63PS480, 63PS481, 63S480, 63S481, 6348-1 (OC, 70ns, 9address, 1CE), 6348-2, 6349-1 (TS, 70ns, 9address, 1CE), 6349-2
Raytheon  : 29620, 29621, 29622, 29623
AMD       : Am27S28A, Am27S29A
NS        : DM74S472, DM74S473
Harris    : HM7648-5, HM7649-5
Fujitsu   : MB7123H, MB7123L, MB7123N, MB7124E, MB7124E-W, MB7124H, MB7124L, MB7124L-W, MB7124N, MB7124Y
Signetics : N82HS147, N82HS147A
NEC       : uPB424C/D, uPB424C/D-1



512*8
   +--\/--+
A7 |1   24| Vcc (open for 3604AL, 3604L-6)
A6 |2   23| A8
A5 |3   22| NC (Vcc for 3604AL, 3604L-6)
A4 |4   21| CS1/
A3 |5   20| CS2/
A2 |6   19| CS3
A1 |7   18| CS4
A0 |8   17| D7
D0 |9   16| D6
D1 |10  15| D5
D2 |11  14| D4
GND|12  13| D3
   +------+
MMI       : 63LS482, 63LS483, 63PS482, 63PS483, 6340-1, 6340-2, 6341-1 (TS, 90ns, 9address, 4CE), 6341-2, 63137-1 (TS, 90ns, 9address, 1CE), 63139-1 (TS, 90ns, 9address, 1CE), 63141-1 (TS, 90ns, 9address, 1CE)
Raytheon  : 29624, 29625, 29626, 29627
Intel     : 3604, 3604-4, 3604A, 3604A-2, 3604AL, 3604L-6, 3624, 3624-4, 3624A, 3624A-2
AMD       : Am27S30, Am27S30A, Am27S31, Am27S31A
NS        : DM74S474, DM74S475, DM87S295, DM87S296
Harris    : HM7640-5, HM7640A-5, HM7641-5, HM7641A-5
Intersil  : IM5605C, IM5605CA, IM5625C, IM5625CA
Motorola  : MCM7640, MCM7641
Signetics : N82S140, N82S141
TI        : SN74S474, SN74S475
NEC       : uPB405, uPB425-E, uPB425C/D, uPB425C/D-1, uPB425C/D-2, 93438, 93448, P0Z019



512*8 (latched)
    +--\/--+
 A3 |1   24| Vcc
 A4 |2   23| A2
 A5 |3   22| A1
 A6 |4   21| A0
 A7 |5   20| CE1/
 A8 |6   19| CE2
 O1 |7   18| STROBE
 O2 |8   17| O8
 O3 |9   16| O7
 O4 |10  15| O6
 FE2|11  14| O5
 GND|12  13| FE1
    +------+
Signetics : 82S115



2048*4
   +--\/--+
A6 |1   18| Vcc
A5 |2   17| A7
A4 |3   16| A8
A3 |4   15| A9
A0 |5   14| O0
A1 |6   13| O1
A2 |7   12| O2
A10|8   11| O3
GND|9   10| CE/
   +------+
MMI       : 63LS840, 63LS841, 63PS840, 63PS841, 63S840, 63S841, 6388-1, 6389-1, 6389-2
Signetics : 82S185A, 82S185B
Raytheon  : 29650, 29651, 29652, 29653
AMD       : Am27S184, Am27S185, Am27LS184, Am27LS185, Am27S184A, Am27S185A
NS        : DM87S184, DM87S185, DM87S185A, DM87S185B
Hitachi   : HN25084, HN25084S, HN25085, HN25085S
Fujitsu   : MB7127E, MB7127H, MB7128E, MB7128E-W, MB7128H, MB7128L, MB7128L-W, MB7128Y
Motorola  : MCM7684, MCM7685
Signetics : N82HS185, N82S185, N82S185A
TI        : TBP24S81, TBP24SA81
NEC       : uPB427C/D



2048*4
   +--\/--+
A7 |1   18| Vcc
A6 |2   17| A8
A5 |3   16| A9
A4 |4   15| A10
A3 |5   14| O0
A2 |6   13| O1
A1 |7   12| O2
A0 |8   11| O3
GND|9   10| CS/
   +------+
Harris    : HM7684-5, HM7684P-5, HM7685-5, HM7685P-5



2048*4
    +--\/--+
 A7 |1   20| Vcc
 A6 |2   19| A8
 A5 |3   18| A9
 A4 |4   17| A10
 A3 |5   16| O0
 A2 |6   15| O1
 A1 |7   14| O2
 A0 |8   13| O3
CS0/|9   12| CS1/
 GND|10  11| CS2/
    +------+
Harris    : HM7686-5, HM7686P-5, HM7687-5, HM7687P-5
Motorola  : MCM7686



1024*8
    +--\/--+
 A0 |1   20| Vcc
 A1 |2   19| A8
 A2 |3   18| A7
 A3 |4   17| A6
 A4 |5   16| A5
 O0 |6   15| A9
 O1 |7   14| O7
 O2 |8   13| O6
 O3 |9   12| O5
 GND|10  11| O4
    +------+
Harris    : HM7683-5



1024*8
   +--\/--+
A6 |1   22| Vcc
A5 |2   21| A7
A4 |3   20| A8
A3 |4   19| A9
A2 |5   18| CS0/
A1 |6   17| CS1/
A0 |7   16| O7
O0 |8   15| O6
O1 |9   14| O5
O2 |10  13| O4
GND|11  12| O3
   +------+
MMI       : 6386-1 (OC, 90ns, 10address, 2CE), 6387-1 (TS, 90ns, 10address, 2CE)
Fujitsu   : MB7129E, MB7129H, MB7132E-W, MB7132L, MB7132L-W, MB7132Y



1024*8
   +--\/--+
A7 |1   24| Vcc
A6 |2   23| A8
A5 |3   22| A9
A4 |4   21| CS0/
A3 |5   20| CS1/
A2 |6   19| CS2
A1 |7   18| CS3
A0 |8   17| O7
O0 |9   16| O6
O1 |10  15| O5
O2 |11  14| O4
GND|12  13| O3
   +------+
MMI       : 53C881, 53C881A, 63C881, 63C881A, 63LS880, 63LS881, 63PS880, 63PS881, 63S880, 63S881, 6380-1 (OC, 90ns, 10address, 4CE), 6380-2, 6381-1 (TS, 90ns, 10address, 4CE), 6381-2
Intel     : 82HS181, 82S181, 3608, 3608-4, 3628, 3628-4, 3628A, 3628A-1, 3628A-3, 3628A-4
FSC       : 93L450, 93L451, 93Z450, 93Z450A, 93Z451, 93Z451A
Raytheon  : 29630, 29631, 29632, 29633
AMD       : Am27S180A, Am27S181A
Cypress   : CY7C282-30, CY7C282-45
NS        : DM74S188A, DM74S288A, DM87S228, DM87S229, DM87S181A, DM87LS181, 54S450, 74S450, 54S451, 74S451, 54S478, 74S478, 54S479, 74S479
Harris    : HM7680-5, HM7680P-5, HM7681-5, HM7681P-5
Hitachi   : HN25088, HN25088S, HN25089, HN25089S
Intersil  : IM5608, IM5618
Fujitsu   : MB7132E, MB7132H
Motorola  : MCM7680, MCM7680DC, MCM7681, MCM7681DC
Signetics : N82S180, N82S181, N82S181A, N82S181B, N82LS181
TI        : TBP28S86, TBP28S86A
NEC       : uPB428C/D, uPB428C/D-1



1024*8 (pin compatible to 2708)
   +--\/--+
A7 |1   24| Vcc
A6 |2   23| A8
A5 |3   22| A9
A4 |4   21| NC
A3 |5   20| CS/
A2 |6   19| NC
A1 |7   18| NC
A0 |8   17| O7
O0 |9   16| O6
O1 |10  15| O5
O2 |11  14| O4
GND|12  13| O3
   +------+
MMI       : 6384-1 (OC, 90ns, 10address, 1CE), 6385-1 (TS, 90ns, 10address, 1CE)
Harris    : HM7608-5
Fujitsu   : MB7055, MB7060, MB7153L, MB7154L
Motorola  : MCM82707L,P (OC, 40ns, 10address), MCM82708L,P (TS, 40ns, 10address)
Signetics : N82S2708
NEC       : uPB417C/D
NS        : 54S2708, 74S2708, 54S3708, 74S3708



1024*8 (latched)
   +--\/--+
A7 |1   24| Vcc
A6 |2   23| A8
A5 |3   22| A9
A4 |4   21| CE1/
A3 |5   20| CE2/
A2 |6   19| CE3
A1 |7   18| STROBE
A0 |8   17| O8
O1 |9   16| O7
O2 |10  15| O6
O3 |11  14| O5
GND|12  13| O4
   +------+
Signetics : 82S183
FSC       : 93L451



4096*4
   +--\/--+
 A6 |1   20| Vcc
 A5 |2   19| A7
 A4 |3   18| A8
 A3 |4   17| A9
 A2 |5   16| O0
 A1 |6   15| O1
 A0 |7   14| O2
 A10|8   13| O3
CE2/|9   12| A11
 GND|10  11| CE1/
   +------+
Fujitsu   : MB7133E, MB7133H, MB7134E, MB7134E-W, MB7134H, MB7134Y



4096*4
   +--\/--+
A8 |1   20| Vcc
A7 |2   19| A9
A6 |3   18| A10
A5 |4   17| A11
A4 |5   16| CE1/
A3 |6   15| CE2/
A2 |7   14| O0
A1 |8   13| O1
A0 |9   12| O2
GND|10  11| O3
   +------+
MMI       : 63LS1640, 63LS1641, 63PS1640, 63PS1641, 63S1640, 63S1641, 63S1641A
AMD       : Am27S40, Am27S41, Am27S40A, Am27S41A, Am27PS41A
NS        : DM87S195A, DM87S195B
Fujitsu   : MB7152E, MB7152E-W, MB7152H, MB7152Y
NEC       : uPB430AC/D-25, uPB430AC/D-35, uPB431AC/D-25, uPB431AC/D-35
Signetics : 82S195, 82S195A, 82S195B
FSC       : 93513
Harris    : 76165-5



2048*8
   +--\/--+
A0 |1   22| Vcc
A1 |2   21| A8
A2 |3   20| A7
A3 |4   19| A6
A4 |5   18| A5
O0 |6   17| A9
O1 |7   16| O7
O2 |8   15| O6
O3 |9   14| O5
A10|10  13| O4
GND|11  12| CE/
   +------+
Fujitsu   : MB7135E, MB7135H, MB7136E, MB7136E-W, MB7136H, MB7136Y



2048*8
   +--\/--+
A7 |1   24| Vcc
A6 |2   23| A8
A5 |3   22| A9
A4 |4   21| A10
A3 |5   20| CE1/
A2 |6   19| CE2
A1 |7   18| CE3
A0 |8   17| O7
O0 |9   16| O6
O1 |10  15| O5
O2 |11  14| O4
GND|12  13| O3
   +------+
MMI       : 63LS1680, 63LS1681, 63PS1680, 63PS1681, 63S1680, 63S1681
Intel     : 82HS191, 82S191, 3636, 3636-1, C3636B-1, C3636B-2
FSC       : 93Z510, 93Z511
Raytheon  : 29681AC, 29681C, 29683AC, 29683C
AMD       : Am27S190, Am27S191, Am27PS191, Am27S190A, Am27S191A, Am27PS191A
Cypress   : CY7C292A-25, CY7C292A-35, CY7C292A-45, CY7C292A-55, CYC292A-25, CYC292A-35, CYC292A-45, CYC292A-55
NS        : DM87S190, DM87S191, DM87S190A, DM87S190B, DM87S191A, DM87S191B, DM87S290A, DM87S290B, DM87S291A, DM87S291B
Harris    : HM76160-5, HM76161-5
Hitachi   : HN25168S, HN25169S
Fujitsu   : MB7137E, MB7137H, MB7138E, MB7138H
Signetics : N82HS191, N82S191, N82S191A, N82S191C
TI        : TBP28S166, TBP28SA166, TBP28L166, TBP28S166A, TBP28S166-55, TBP38S165-25, TBP38S165-35, TBP38L165-35, TBP38L165-45
NEC       : uPB429C/D-3, uPD409C/D, uPD409C/D-1, uPD409C/D-2, uPD429C/D, uPD429C/D-1, uPD429C/D-2



2048*8
    +--\/--+
+5V |1   24| EN2
A0  |2   23| D0
A1  |3   22| D1
A2  |4   21| D2
A3  |5   20| D3
A4  |6   19| D4
A5  |7   18| D5
A9  |8   17| D6
-12V|9   16| D7
A8  |10  15| A10
A7  |11  14| EN1
A6  |12  13| AR/
    +------+
Mostek	  : MK28000P (pin compatible with EA4900)
ATARI     : Le Mans (1976)		part         N  position
								(00)5837-01  1  5N
								(00)5838-01  2  4N
								(00)5839-01  3  6N
ATARI     : Tank/Tank II (1974) (00)4800-SD     10K



2048*8 (pin compatible to 2716)
   +--\/--+
A7 |1   24| Vcc
A6 |2   23| A8
A5 |3   22| A9
A4 |4   21| NC
A3 |5   20| CE/
A2 |6   19| A10
A1 |7   18| NC
A0 |8   17| O7
O0 |9   16| O6
O1 |10  15| O5
O2 |11  14| O4
GND|12  13| O3
   +------+
Harris    : HM7616-5
NEC       : uPB419C/D



4096*8
   +--\/--+
A7 |1   24| Vcc
A6 |2   23| A8
A5 |3   22| A9
A4 |4   21| A10
A3 |5   20| CE1/
A2 |6   19| A11
A1 |7   18| CE2
A0 |8   17| O7
O0 |9   16| O6
O1 |10  15| O5
O2 |11  14| O4
GND|12  13| O3
   +------+
MMI       : 63S3281, 63S3281A
Intel     : 82HS321, 82S321, 3632, 3632-1
AMD       : Am27S43, Am27S43A
NS        : DM87S321, DM87S321A, DM87S421, DM87S421A
Fujitsu   : MB7141E, MB7141H, MB7141N, MB7142E, MB7142E-W, MB7142H, MB7142N
Signetics : N82S321, N82HS321, N82HS321A, N82HS321B
Harris    : HM76321-5
Raytheon  : 29671, 29671A



8192*8
   +--\/--+
A7 |1   24| Vcc
A6 |2   23| A8
A5 |3   22| A9
A4 |4   21| A10
A3 |5   20| CE/
A2 |6   19| A11
A1 |7   18| A12
A0 |8   17| O7
O0 |9   16| O6
O1 |10  15| O5
O2 |11  14| O4
GND|12  13| O3
   +------+
Signetics : 82HS641, 82HS641A, 82HS641B
AMD       : Am27S49, Am27S49A
FSC       : 93Z564, 93Z565, 93Z565A
Cypress   : CY7C261-35PC/WC, CY7C261-40, CY7C261-45, CY7C261-55, CY7C261-65, CY7C263-35PC/WC, CY7C263-40, CY7C263-45, CY7C263-55, CY7C264-35PC/WC/DC, CY7C264-40, CY7C264-45, CY7C264-55, 
Harris    : HM76641-5, HM76641A-5
Fujitsu   : MB7144E, MB7144E-W, MB7144H
Lattice   : PR64K8-45, PR64K8-55, PR64K8-70, 



  
  
-----------------------------------------------------------------------------------------------------
To be verified  
Harris -- Signetics
7686   == 82s186
7687   == 82s187

-----------------------------------------------------------------------------------------------------
Atari PROM list (Thanks to Lord Nightmare)

5837    01  Le Mans
5838    01  "
5839    01  "
7513  	01	Starship 1
7514 	01	"
7515 	01	"
7516 	01	"
7517 	01	"
7518 	01	"
7519 	01	"
7528 	02	"
7529 	02	"
7531 	-	Starship 1 <undumped revision!>
9114 	01	Super bug/Fire truck/monte carlo
9121 	-	Super bug
9124 	01	"
9125 	01	"
9126 	01	"
9127 	01	"
9402 	01	Boxer (prototype)/video pinball (redump) (may match 9114-01)
9471 	01	Super bug
9472 	01	"
9491 	01	Canyon Bomber
9492 	01	"
9499 	01	"
9503 	01	"
9505 	01	"
9506 	01	"
007530 	01	Starship 1 <undumped revision!>
008513 	01	<unknown! dump plz>
008514 	01	<unknown! dump plz>
009496 	-	<unknown! dump plz>
009496 	02	<unknown! dump plz>
030608 	01	<unknown! dump plz>
030752 	-	Tournament Table
030753 	-	"
030929 	-	" set 2
032823 	02	Fire truck
032828 	02	"
032829 	01	"
032830 	01	"
035144-04E 	Asteroids Rev 4
035145-04E 	"
136002-113 	Tempest rev 1.1
136002-116 	"
136002-120 	"
136002-122 	"
30131 	01	Destroyer
30132 	01	"
30133 	01	"
30134 	01	"
30135 	01	"
30136 	01	"
30141 	01	<unknown! dump plz>
30142 	01	<unknown! dump plz>
30143 	01	<unknown! dump plz>
30144 	01	<unknown! dump plz>
30597 	01	Sky Raider
30611 	01	Avalanche
30612 	01	"
30613 	01	"
30613 	01	"
30614 	01	"
30615 	01	"
30616 	01	"
32827 	01	Fire Truck
32831 	01	"
33280 	01	Super Breakout
33281 	01	"
33282 	01	"
33442 	01	Super Breakout older program rev which is undumped! dump plz.
33443 	01	"
33443 	01	"
33444 	01	"
33445 	01	"
33446 	01	"
33448 	01	"
33448 	01	"
33449 	01	"
33449 	01	"
33450 	01	"
33450 	01	"
33451 	01	"
33452 	01	"
33452 	01	"
33688 	01	Orbit

-----------------------------------------------------------------------------------------------------
Sega PROMs from Zaxxon (Thanks to Joe Magiera)

One PROM is at board location marked U98 and is a 20-pin device.
The label on the IC has the Texas Instruments logo.
On the first line, printed on the IC, is “J214A2” and the second line has “MR016”.
As best I can determine, these are custom markings for Sega/Gremlin.
When I searched on the internet for Texas Instruments J214A2 or MR016, I didn’t find anything useful.
When I looked at the manual (PDF page 125, manual page 121), in the schematics section, it refers to this IC as an 28L22.
My EPROM programmers (EETools Top Max and Data I/O 29B) did not have this as a selectable item.
However, at Mike’s Arcade, 28L22 is listed with a speed of 100ns.
It crosses to a Signetics 82S135 and a few others.
My programmers do have the 82S135 selection, so I can read it and verify it that way.
If you need a replacement, there were a few listed and some with a much faster speed of 45ns, so any of those would be workable replacements (if you can find one).

The other PROM is at board location marked U72 and is a 16-pin device.
The label on the IC has the Texas Instruments logo.
On the first line, printed on the IC is “J214X2” and on second line has “MR017”.
Again, as best I can determine, these are custom markings for Sega/Gremlin.
When I searched on the internet for Texas Instruments J214X2 or MR017, I didn’t find anything useful.
When I looked at the manual (PDF page 126, manual page 122), in the schematics section, it does not give further reference to this IC besides “”U72” and “MR017”.
However, one of the super sleuths on the Dumping Union (Caius) identified that this IC has the same pinout as a Signetics 82S129 (and several other crosses).
My programmer can select that, so while I haven’t tried it yet, I should at least be able to read & verify it that way.
If you need a replacement, as with the other PROM, I’m guessing that either the slower speed (50ns) or faster speed (25ns) crosses will work, again, if you can find one at all.
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