DRAM 256k x 16

Cross-Reference

BRAND	TAG	NUMBER	PIN COUNT	OUTPUT	MARKINGS
Fujitsu	MB	814260	SOJ40 TSOP40	.	MB814260
Integrated Circ. Sol.	IS	41C16256	SOJ40 TSOP40	TS	IS41C16256
Integrated Circ. Sol.	IS	41LV16256	SOJ40 TSOP40	TS	IS41LV16256
Issi	IS	41LV16256	SOJ40 TSOP40	TS	IS41LV16256
Mitsubishi	M5M	44260	SOJ40 TSOP40	.	M5M44260 M5M44260C M5M44260CJ M5M44260TP

Dynamic Random-Access Memory 256K x 16

Size

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

Pinout

SOJ40 - TSOP40
         +---\/---+
     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
         +--------+

External links

DRAM page on wikipedia

Files

• 
  MB814260 Datasheet
• 
  IS41C16256 IS41LV16256 Datasheet
• 
  IS41C16256 IS41LV16256 Datasheet
• 
  M5M44260 Datasheet