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EPROM 2764 & 27C64 (DIP28, Mil600)
{| style="float: right;" border="1" cellpadding="4" cellspacing="0" class="sortable"
|+ style="background:silver" | Cross-Reference
!BRAND
!TAG
!NUMBER
!PIN COUNT
!MARKINGS
|-
|AMD || Am || 2764 9764 || DIP28 || Am2764 Am2764HV Am9764
|-
|AMD || Am || 2764A || DIP28 LCC32 || Am2764A
|-
|AMD || Am || 27C64 || DIP28 LCC32 || Am27C64 Am27C64L
|-
|AMD || DS || 41300 || DIP28 || DS41300
|-
|AKM Asahi Kansei || AK || 27CX641 27CX642 || DIP28 || AK27CX641 AK27CX642
|-
|Atmel || AT || 27C64 27HC64 || DIP28 LCC32 || AT27C64 AT27HC64 AT27HC64L
|-
|Atmel || AT || 27HC641 27HC642 || DIP28 || AT27HC641 AT27HC641R AT27HC642 AT27HC642R
|-
|Bosh || B || 57120 || DIP28 || B57120
|-
|Bosh || B || 57347 || DIP28 || B7347
|-
|Bosh || B || 57477 || DIP28 || B57477
|-
|Bosh || B || 57519 || DIP28 || B57519
|-
|Bosh || B || 57618 || DIP28 || B57618
|-
|Bosh || B || 57625 || DIP28 || B57625
|-
|Catalyst || CAT || 2764 2764A || DIP28 || CAT2764 CAT2764A
|-
|Cypress || CY || 7C261 || DIP28 LCC28 || CY7C261
|-
|Cypress || CY || 7C263 || DIP28 LCC28 || CY7C263
|-
|Cypress || CY || 7C264 || DIP28 LCC28 || CY7C264
|-
|Cypress || CY || 7C265 || DIP28 LCC28 || CY7C265
|-
|Cypress || CY || 7C266 || DIP28 LCC32 || CY7C266
|-
|Exodus Microel. || EM || 27C64 || DIP28 LCC32 || EM27C64
|-
|Fairchild || NM || 27LC64 || DIP28 || NM27LC64
|-
|Fairchild || NMC || 27C64 || DIP28 || NMC27C64
|-
|Fujitsu || MBM || 2764 || DIP28 || MBM2764
|-
|Fujitsu || MBM || 27C64 || DIP28 || MBM27C64
|-
|General Instr. ||  || 27C64 || DIP28 || 27C64
|-
|General Instr. ||  || 27HC64 || DIP28 || 27HC64 27HC64L
|-
|General Instr. ||  || 27HC641 || DIP28 || 27HC641
|-
|Greenwich Instr. || GR || 2764 || DIP28 || GR2764
|-
|Hitachi || HN || 462764 || DIP28 || HN462764 HN462764G
|-
|Hitachi || HN || 482764 || DIP28 || HN482764 HN482764G HN482764P
|-
|Hitachi || HN || 2764 || DIP28 || HN2764 HN2764A HN2764G
|-
|Hitachi || HN || 27C64 || DIP28 SOP28 || HN27C64 HN27C64G HN27C64FP
|-
|Hynix || HY || 2764 27C64 || DIP28 || HY2764 HY27C64 HY27C64A
|-
|Hyundai || HY || 2764 27C64 || DIP28 || HY2764 HY27C64 HY27C64A
|-
|ICT || ICT || 27CX641 27CX642 || DIP28 || ICT27CX641 27CX641 ICT27CX642 27CX642
|-
|Intel || D/I || 2764 || DIP28 || i2764 i2764A D2764 D2764A LD2764A<br>MD2764 MD2764A P2764 P2764A QD2764<br>QD2764A TD2764 TD2764A
|-
|Intel || D/I || 27C64 || DIP28 LCC32 || i27C64 AD27C64 AN27C64 AP27C64<br>D27C64 L27C64 LD27C64 MD27C64<br>N27C64 P27C64 QD27C64 TP27C64<br>TN27C64 27C64A
|-
|Intel || D/I || 87C64 || DIP28 || i87C64 AD87C64 AP87C64 D87C64<br>P87C64 LD87C64 QD87C64 TD87C64 TP87C64
|-
|Macronix || MX || 27C64 || DIP28 || MX27C64
|-
|Matsushita ||  || 2764 || DIP28 || 2764
|-
|Microchip ||  || 27C64 || DIP28 LCC32 SOIC28 || 27C64 27C64A
|-
|Microchip ||  || 27HC64 || DIP28 LCC32 SOIC28 || 27HC64 27HC64A
|-
|Microchip ||  || 27LV64 || DIP28 LCC32 SOIC28 TSOP28 || 27LV64
|-
|Mitsubishi || M5L || 2764 || DIP28 || M5L2764
|-
|Mostek || MK || 2764 || DIP28 || MK2764
|-
|Mostek || MK || 36000 || DIP28 || MK36000
|-
|Motorola || MCM || 68764 68766 || DIP28 || MCM68764 MCM68766C
|-
|National || NM || 27LC64 || DIP28 || NM27LC64
|-
|National || NMC || 27C64 || DIP28 || NMC27C64
|-
|Nec || uPD || 2364 || DIP28 || uPD2364 uPD2364A
|-
|Nec || uPD || 2764 || DIP28 || uPD2764
|-
|Nec || uPD || 27C64 || DIP28 || uPD27C64 uPD27C64A
|-
|NTE || NTE || 2764 || DIP28 || NTE2764
|-
|Oki || MSM || 2764 || DIP28 || MSM2764 MSM2764A MSM2764AS MSM2764ZB MSM2764RS
|-
|Oki || MSM || 27C64 || DIP28 || MSM27C64 MSM27C64AS
|-
|Panatech || RD || 27C64 || DIP28 || RD27C64
|-
|Philips || NXP || 27C64 27C641 || DIP28 || 27C64 NXP27C64 27C641
|-
|Quick Pulse || QP || 2764 || DIP28 || QP2764 QP2764A
|-
|Quick Pulse || QP || 27C64 || DIP28 LCC32 || QP27C64
|-
|Richo || RD || 27C64 || DIP28 LCC32 || RD27C64
|-
|Rockwell || R || 2764 27C64 || DIP28 || R2764 R2764C R2764P R27C64
|-
|Rockwell || R || 8764 87C64 || DIP28 || R8764 R87C64
|-
|SEEQ || DQ || 82005 || DIP28 || DQ82005
|-
|SEEQ || DQ || 2764 || DIP28 || DQ2764
|-
|ST Microelectronics || M || 2764 || DIP28 || M2764 M2764A
|-
|ST Microelectronics || M || 27C64 || DIP28 LCC32 || M27C64 M27C64A
|-
|ST Microelectronics || M || 27HC641 || DIP28 || M27HC641
|-
|ST Microelectronics || ST || 2764 || DIP28 || ST2764 ST2764A
|-
|ST Microelectronics || TS || 2764 || DIP28 || TS2764 TS2764A
|-
|ST Microelectronics || TS || 27C64 || DIP28 LCC32 || TS27C64 TS27C64A
|-
|Signetics || S || 27C64 || DIP28 || S27C64 S27C64A
|-
|Signetics || S || 27C641 || DIP28 || S27C641
|-
|Sharp || LH || 5764 || DIP28 SOIC28 || LH5764
|-
|SMOS || SPM || 27C64 || DIP28 || SPM27C64 SPM27C64H
|-
|Texas Instr. || SMJ || 2764 27C64 || DIP28 || SMJ2764 SMJ27C64
|-
|Texas Instr. || TMS || 2564 || DIP28 || TMS2564
|-
|Texas Instr. || TMS || 2764 || DIP28 || TMS2764
|-
|Texas Instr. || TMS || 27C64 || DIP28 || TMS27C64
|-
|Texas Instr. || TMS || 27P64 || DIP28 || TMS27P64
|-
|Texas Instr. || TMS || 27PC64 || DIP28 || TMS27PC64
|-
|Toshiba || TMM || 2464 || DIP28 SOIC28 || TMM2464 TMM2464A
|-
|Toshiba || TMM || 2764 || DIP28 || TMM2764 TMM2764A
|-
|VLSI || VT || 27C64 || DIP28 || VT27C64
|-
|WSI || WS || 27C64 || DIP28 LCC32 || WS27C64F WS27C64L
|-
|WSI || WS || 57C49 || DIP28 LCC28 LCC32 || WS57C49 WS57C49B WS57C49C WS57C49F
|-
|USSR || K || 573RF4 || DIP28 || K573RF4 K573RF4A K573RF4B K573RF43 K573RF44
|-
|USSR || K || 573RF6 || DIP28 || K573RF6 K573RF6A K573RF6B
|-
|USSR || K || 1626RF || DIP28 || K1626RF1 K1626RF2
|}


64Kb, 8KB (8.192 byte), 2000 hex 8 bit
'''EPROM 2764 & 27C64'''
 
=Size=
{| border="1" cellpadding="4" cellspacing="0"
|-align="left"
!bit
!Byte
!Hex organization
|-
|64Kb || 8KB (8.192 byte) || 2000hex8
|}
 
=Pinout=
<pre>
<pre>
HN482764G
all types, excluding TMS2564
M2764
      DIP28-600mil
TMS2764
      SOIC28-330mil
        +--\/--+
    Vpp |1  28| Vcc
    A12 |2  27| *PGM
    A7  |3  26| NC
    A6  |4  25| A8
    A5  |5  24| A9
    A4  |6  23| A11
    A3  |7  22| *OE
    A2  |8  21| A10
    A1  |9  20| *CE
    A0  |10  19| O7
    O0  |11  18| O6
    O1  |12  17| O5
    O2  |13  16| O4
    GND |14  15| O3
        +------+
 
    -- ONLY TMS2564 --
      DIP28-600mil
        +--\/--+
    Vpp |1  28| Vcc
    *CS1 |2  27| *CS2
    A7  |3  26| Vcc
    A6  |4  25| A8
    A5  |5  24| A9
    A4  |6  23| A12
    A3  |7  22| PD/*PGM
    A2  |8  21| A10
    A1  |9  20| A11
    A0  |10  19| O7
    O0  |11  18| O6
    O1  |12  17| O5
    O2  |13  16| O4
    GND |14  15| O3
        +------+
 
 
    LCC28-450x450mil
+----------------------------------------+
|  5 A4  | 12 01  | 19 O6  | 26 A9    |
|  6 A3  | 13 02  | 20 O7  | 27 A8    |
|  7 A2  | 14 GND  | 21 NC  | 28 Vcc  |
|  8 A1  | 15 NC  | 22 A12  |  1 NC    |
|  9 A0  | 16 O3  | 23 A11  |  2 A7    |
| 10 NC  | 17 O4  | 24 *CS  |  3 A6    |
| 11 O0  | 18 O5  | 25 A10  |  4 A5    |
+----------------------------------------+
 
 
    LCC32-450x550mil
+----------------------------------------+
|  5 A6  |        | 21 DQ6  |          |
|  6 A5  | 14 DQ1  | 22 DQ7  | 30 NC    |
|  7 A4  | 15 DQ2  | 23 *CE  | 31 *PGM  |
|  8 A3  | 16 Vss  | 24 A10  | 32 Vcc  |
|  9 A2  | 17 NC  | 25 *OE  |  1 NC    |
| 10 A1  | 18 DQ3  | 26 NC  |  2 Vpp  |
| 11 A0  | 19 DQ4  | 27 A11  |  3 A12  |
| 12 NC  | 20 DQ5  | 28 A9  |  4 A7    |
| 13 DQ0  |        | 29 A8  |          |
+----------------------------------------+
</pre>
</pre>
<pre>
    +--\/--+
Vpp |1  28| Vcc
A12 |2  27| *PGM
A7  |3  26| N.C.
A6  |4  25| A8
A5  |5  24| A9
A4  |6  23| A11
A3  |7  22| *OE
A2  |8  21| A10
A1  |9  20| *CE
A0  |10  19| O7
O0  |11  18| 06
O1  |12  17| O5
O2  |13  16| O4
GND |14  15| O3
    +------+</pre>


[[Image:dip28-600mil.jpg]]
=External links=
[https://en.wikipedia.org/wiki/EPROM EPROM page on wikipedia]
 
=Files=
<gallery widths="150px">
File:am27c64.pdf|AM27C64 Datasheet
File:cy7c261.pdf|CY7C26X Datasheet
</gallery>


[[Category:ROM]]
[[Category:EPROM]]
[[Category:DIP28-600mil]]
[[Category:DIP28-600mil]]
[[Category:LCC28-450x450mil]]
[[Category:LCC32-450x550mil]]
[[Category:SOIC28-330mil]]

Latest revision as of 14:23, 8 August 2022

Cross-Reference
BRAND TAG NUMBER PIN COUNT MARKINGS
AMD Am 2764 9764 DIP28 Am2764 Am2764HV Am9764
AMD Am 2764A DIP28 LCC32 Am2764A
AMD Am 27C64 DIP28 LCC32 Am27C64 Am27C64L
AMD DS 41300 DIP28 DS41300
AKM Asahi Kansei AK 27CX641 27CX642 DIP28 AK27CX641 AK27CX642
Atmel AT 27C64 27HC64 DIP28 LCC32 AT27C64 AT27HC64 AT27HC64L
Atmel AT 27HC641 27HC642 DIP28 AT27HC641 AT27HC641R AT27HC642 AT27HC642R
Bosh B 57120 DIP28 B57120
Bosh B 57347 DIP28 B7347
Bosh B 57477 DIP28 B57477
Bosh B 57519 DIP28 B57519
Bosh B 57618 DIP28 B57618
Bosh B 57625 DIP28 B57625
Catalyst CAT 2764 2764A DIP28 CAT2764 CAT2764A
Cypress CY 7C261 DIP28 LCC28 CY7C261
Cypress CY 7C263 DIP28 LCC28 CY7C263
Cypress CY 7C264 DIP28 LCC28 CY7C264
Cypress CY 7C265 DIP28 LCC28 CY7C265
Cypress CY 7C266 DIP28 LCC32 CY7C266
Exodus Microel. EM 27C64 DIP28 LCC32 EM27C64
Fairchild NM 27LC64 DIP28 NM27LC64
Fairchild NMC 27C64 DIP28 NMC27C64
Fujitsu MBM 2764 DIP28 MBM2764
Fujitsu MBM 27C64 DIP28 MBM27C64
General Instr. 27C64 DIP28 27C64
General Instr. 27HC64 DIP28 27HC64 27HC64L
General Instr. 27HC641 DIP28 27HC641
Greenwich Instr. GR 2764 DIP28 GR2764
Hitachi HN 462764 DIP28 HN462764 HN462764G
Hitachi HN 482764 DIP28 HN482764 HN482764G HN482764P
Hitachi HN 2764 DIP28 HN2764 HN2764A HN2764G
Hitachi HN 27C64 DIP28 SOP28 HN27C64 HN27C64G HN27C64FP
Hynix HY 2764 27C64 DIP28 HY2764 HY27C64 HY27C64A
Hyundai HY 2764 27C64 DIP28 HY2764 HY27C64 HY27C64A
ICT ICT 27CX641 27CX642 DIP28 ICT27CX641 27CX641 ICT27CX642 27CX642
Intel D/I 2764 DIP28 i2764 i2764A D2764 D2764A LD2764A
MD2764 MD2764A P2764 P2764A QD2764
QD2764A TD2764 TD2764A
Intel D/I 27C64 DIP28 LCC32 i27C64 AD27C64 AN27C64 AP27C64
D27C64 L27C64 LD27C64 MD27C64
N27C64 P27C64 QD27C64 TP27C64
TN27C64 27C64A
Intel D/I 87C64 DIP28 i87C64 AD87C64 AP87C64 D87C64
P87C64 LD87C64 QD87C64 TD87C64 TP87C64
Macronix MX 27C64 DIP28 MX27C64
Matsushita 2764 DIP28 2764
Microchip 27C64 DIP28 LCC32 SOIC28 27C64 27C64A
Microchip 27HC64 DIP28 LCC32 SOIC28 27HC64 27HC64A
Microchip 27LV64 DIP28 LCC32 SOIC28 TSOP28 27LV64
Mitsubishi M5L 2764 DIP28 M5L2764
Mostek MK 2764 DIP28 MK2764
Mostek MK 36000 DIP28 MK36000
Motorola MCM 68764 68766 DIP28 MCM68764 MCM68766C
National NM 27LC64 DIP28 NM27LC64
National NMC 27C64 DIP28 NMC27C64
Nec uPD 2364 DIP28 uPD2364 uPD2364A
Nec uPD 2764 DIP28 uPD2764
Nec uPD 27C64 DIP28 uPD27C64 uPD27C64A
NTE NTE 2764 DIP28 NTE2764
Oki MSM 2764 DIP28 MSM2764 MSM2764A MSM2764AS MSM2764ZB MSM2764RS
Oki MSM 27C64 DIP28 MSM27C64 MSM27C64AS
Panatech RD 27C64 DIP28 RD27C64
Philips NXP 27C64 27C641 DIP28 27C64 NXP27C64 27C641
Quick Pulse QP 2764 DIP28 QP2764 QP2764A
Quick Pulse QP 27C64 DIP28 LCC32 QP27C64
Richo RD 27C64 DIP28 LCC32 RD27C64
Rockwell R 2764 27C64 DIP28 R2764 R2764C R2764P R27C64
Rockwell R 8764 87C64 DIP28 R8764 R87C64
SEEQ DQ 82005 DIP28 DQ82005
SEEQ DQ 2764 DIP28 DQ2764
ST Microelectronics M 2764 DIP28 M2764 M2764A
ST Microelectronics M 27C64 DIP28 LCC32 M27C64 M27C64A
ST Microelectronics M 27HC641 DIP28 M27HC641
ST Microelectronics ST 2764 DIP28 ST2764 ST2764A
ST Microelectronics TS 2764 DIP28 TS2764 TS2764A
ST Microelectronics TS 27C64 DIP28 LCC32 TS27C64 TS27C64A
Signetics S 27C64 DIP28 S27C64 S27C64A
Signetics S 27C641 DIP28 S27C641
Sharp LH 5764 DIP28 SOIC28 LH5764
SMOS SPM 27C64 DIP28 SPM27C64 SPM27C64H
Texas Instr. SMJ 2764 27C64 DIP28 SMJ2764 SMJ27C64
Texas Instr. TMS 2564 DIP28 TMS2564
Texas Instr. TMS 2764 DIP28 TMS2764
Texas Instr. TMS 27C64 DIP28 TMS27C64
Texas Instr. TMS 27P64 DIP28 TMS27P64
Texas Instr. TMS 27PC64 DIP28 TMS27PC64
Toshiba TMM 2464 DIP28 SOIC28 TMM2464 TMM2464A
Toshiba TMM 2764 DIP28 TMM2764 TMM2764A
VLSI VT 27C64 DIP28 VT27C64
WSI WS 27C64 DIP28 LCC32 WS27C64F WS27C64L
WSI WS 57C49 DIP28 LCC28 LCC32 WS57C49 WS57C49B WS57C49C WS57C49F
USSR K 573RF4 DIP28 K573RF4 K573RF4A K573RF4B K573RF43 K573RF44
USSR K 573RF6 DIP28 K573RF6 K573RF6A K573RF6B
USSR K 1626RF DIP28 K1626RF1 K1626RF2

EPROM 2764 & 27C64

Size

bit Byte Hex organization
64Kb 8KB (8.192 byte) 2000hex8

Pinout

all types, excluding TMS2564
       DIP28-600mil
      SOIC28-330mil
         +--\/--+
     Vpp |1   28| Vcc
     A12 |2   27| *PGM
     A7  |3   26| NC
     A6  |4   25| A8
     A5  |5   24| A9
     A4  |6   23| A11
     A3  |7   22| *OE
     A2  |8   21| A10
     A1  |9   20| *CE
     A0  |10  19| O7
     O0  |11  18| O6
     O1  |12  17| O5
     O2  |13  16| O4
     GND |14  15| O3
         +------+

    -- ONLY TMS2564 --
       DIP28-600mil
         +--\/--+
     Vpp |1   28| Vcc
    *CS1 |2   27| *CS2
     A7  |3   26| Vcc
     A6  |4   25| A8
     A5  |5   24| A9
     A4  |6   23| A12
     A3  |7   22| PD/*PGM
     A2  |8   21| A10
     A1  |9   20| A11
     A0  |10  19| O7
     O0  |11  18| O6
     O1  |12  17| O5
     O2  |13  16| O4
     GND |14  15| O3
         +------+


    LCC28-450x450mil
+----------------------------------------+
|  5 A4   | 12 01   | 19 O6   | 26 A9    |
|  6 A3   | 13 02   | 20 O7   | 27 A8    |
|  7 A2   | 14 GND  | 21 NC   | 28 Vcc   |
|  8 A1   | 15 NC   | 22 A12  |  1 NC    |
|  9 A0   | 16 O3   | 23 A11  |  2 A7    |
| 10 NC   | 17 O4   | 24 *CS  |  3 A6    |
| 11 O0   | 18 O5   | 25 A10  |  4 A5    |
+----------------------------------------+


    LCC32-450x550mil
+----------------------------------------+
|  5 A6   |         | 21 DQ6  |          |
|  6 A5   | 14 DQ1  | 22 DQ7  | 30 NC    |
|  7 A4   | 15 DQ2  | 23 *CE  | 31 *PGM  |
|  8 A3   | 16 Vss  | 24 A10  | 32 Vcc   |
|  9 A2   | 17 NC   | 25 *OE  |  1 NC    |
| 10 A1   | 18 DQ3  | 26 NC   |  2 Vpp   |
| 11 A0   | 19 DQ4  | 27 A11  |  3 A12   |
| 12 NC   | 20 DQ5  | 28 A9   |  4 A7    |
| 13 DQ0  |         | 29 A8   |          |
+----------------------------------------+

External links

EPROM page on wikipedia

Files

  • AM27C64 Datasheet

    AM27C64 Datasheet

  • CY7C26X Datasheet

    CY7C26X Datasheet

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