DRAM 256k x 16

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Cross-Reference
BRAND TAG NUMBER PIN COUNT OUTPUT MARKINGS
Fujitsu MB 814260 SOJ40-400mil TSOP-II-40/44-10x18mm . MB814260
Hitachi HM 514260 SOJ40-400mil TSOP-II-40/44-10x18mm ZIP40-475mil . HM514260 HM514260L HM514260J HM514260T HM514260Z
Integrated Circ. Sol. IS 41C16256 SOJ40-400mil TSOP-II-40/44-10x18mm TS IS41C16256
Integrated Circ. Sol. IS 41LV16256 SOJ40-400mil TSOP-II-40/44-10x18mm TS IS41LV16256
Issi IS 41LV16256 SOJ40-400mil TSOP-II-40/44-10x18mm TS IS41LV16256
Mitsubishi M5M 44260 SOJ40-400mil TSOP-II-40/44-10x18mm . M5M44260 M5M44260C M5M44260CJ M5M44260TP
NEC uPD 424260 SOJ40-400mil . uPD424260
Siemens HYB 314265 SOJ40-400mil . HYB314265 HYB314265BJ HYB314265BJL
Siemens HYB 514265 SOJ40-400mil . HYB514265 HYB514265BJ

Dynamic Random-Access Memory 256K x 16

Contents

Size

bit Byte (unpadded) Hex
4Mb 512KB 400000hex

Pinout

       SOJ40-400mil
         +---\/---+
     Vcc | 1    40| Vss
     DQ1 | 2    39| DQ16
     DQ2 | 3    38| DQ15
     DQ3 | 4    37| DQ14
     DQ4 | 5    36| DQ13
     Vcc | 6    35| Vss
     DQ5 | 7    34| DQ12
     DQ6 | 8    33| DQ11
     DQ7 | 9    32| DQ10
     DQ8 |10    31| DQ9
      NC |11    30| NC
      NC |12    29| *LCAS
     *WE |13    28| *UCAS
    *RAS |14    27| *OE
      NC |15    26| A8
      A0 |16    25| A7
      A1 |17    24| A6
      A2 |18    23| A5
      A3 |19    22| A4
     Vcc |20    21| Vss
         +--------+

        TSOP40/44 Type2 10x18
         +-----------------+
     Vcc | 1  1 []    40 44| Vss
     DQ1 | 2  2       39 43| DQ16
     DQ2 | 3  3       38 42| DQ15
     DQ3 | 4  4       37 41| DQ14
     DQ4 | 5  5       36 40| DQ13
     Vcc | 6  6       35 39| Vss
     DQ5 | 7  7       34 38| DQ12
     DQ6 | 8  8       33 37| DQ11
     DQ7 | 9  9       32 36| DQ10
     DQ8 |10 10       31 35| DQ9
         |11             34| 
         |12             33| 
      NC |13 11       30 32| NC
      NC |14 12       29 31| *LCAS
      *W |15 13       28 30| *UCAS
    *RAS |16 14       27 29| *OE
      NC |17 15       26 28| A8
      A0 |18 16       25 27| A7
      A1 |19 17       24 26| A6
      A2 |20 18       23 25| A5
      A3 |21 19       22 24| A4
     Vcc |22 20       21 23| Vss
         +-----------------+


     ZIP40-475mil
          ^
  I/O8  1 |
          |  2 I/O9
 I/O10  3 |
          |  4 I/O11
   Vss  5 |
          |  6 I/O12
 I/O13  7 |
          |  8 I/O14
 I/O15  9 |
          | 10 Vss
   Vcc 11 |
          | 12 I/O0
  I/O1 13 |
          | 14 I/O2
  I/O3 15 |
          | 16 Vcc
  I/O4 17 |
          | 18 I/O5
  I/O6 19 |
          | 20 I/O7
    NC 21 |
          | 22 NC
   *WE 23 |
          | 24 *RAS
    NC 25 |
          | 26 A0
    A1 27 |
          | 28 A2
    A3 29 |
          | 30 Vcc
   Vss 31 |
          | 32 A4
    A5 33 |
          | 34 A6
    A7 35 |
          | 36 A8
   *OE 37 |
          | 38 *UCAS
 *LCAS 39 |
          | 40 NC
          -

External links

DRAM page on wikipedia

Files

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