name:         HM4334
function:     1k x 4 CMOS SRAM
package:      DIP-18,18
manufacturer: Hitachi
added-by:     James
comment:      very low power CMOS ram

    +--()--+
 A6 | 1  18| Vcc
 A5 | 2  17| A7
 A4 | 3  16| A8
 A3 | 4  15| A9
 A0 | 5  14| I/O1
 A1 | 6  13| I/O2
 A2 | 7  12| I/O3
/CE | 8  11| I/O4
GND | 9  10| /WE
    +------+

This information was added by a third party and may be incorrect.

This pinout came from the Chipdir:
http://www.chipdir.org/