DRAM 64k x 1

Dynamic Random-Access Memory 64K x 1 (DIP16, 300mil)

Size

bit	Byte	Hex
64Kb	8KB	10000hex

Cross-Reference

BRAND			TAG	NUMBER	CODES

OKI			MSM	  3764	MSM3764
Samsung			KM	  4164	KM4164
Texas Instruments	TMS	  4164	TMS4164

Note:
*64= Page mode

Pinout

DIP16
     +--\/--+
     |1   16| GND
 Din |2   15| *CAS
 *WE |3   14| Dout
*RAS |4   13| A6
  A0 |5   12| A3
  A2 |6   11| A4
  A1 |7   10| A5
 Vcc |8    9| A7
     +------+

LCC18
+---------------------------------------------------------------+
|  3 *WE        |  8 A1         | 12 A4         | 17 *CAS       |
|  4 *RAS       |  9 Vdd        | 13 A3         | 18 Vss        |
|  5 NC         | 10 A7         | 14 NC         |  1 A8         |
|  6 A0         | 11 A5         | 15 A6         |  2 Din        |
|  7 A2         |               | 16 Dout       |               |
+---------------------------------------------------------------+

External links

DRAM page on wikipedia

Files

• 21256 Datasheet

  21256 Datasheet