HMS51232J4 Datasheet, PDF (2/6 Pages) Hanbit Electronics Co.,Ltd – SRAM MODULE 2Mbyte (512K x 32-Bit), 68-Pin JLCC Packaging

HANBit
PIN DESCRIPTION
DQ0 – DQ31
A0 – A18
/WE
/CE1-4
/OE
Vcc
Vss
Data Inputs/Outputs
Address Inputs
Write Enable
Chip Selects
Output Enable
Power Supply
Ground
BLOCK DIAGRAM
/CE1
/WE
/OE
A0-18
U1
512Kx8
/CE2
U2
512Kx8
/CE3
U3
512Kx8
HMS51232J4
/CE4
U4
512Kx8
8
8
8
TRUTH TABLE
MODE
STANDBY
NOT SELECTED
READ
WRITE
DQ0-7
/OE
X
H
L
X
DQ8-15
/CE
H
L
L
L
DQ16-23
/WE
DQ
X
HIGH-Z
H
HIGH-Z
H
Dout
L
Din
8
DQ24-31
POWER
STANDBY
ACTIVE
ACTIVE
ACTIVE
URL: www.hbe.co.kr
2
HANBit Electronics Co.,Ltd.
Rev. 1.0 (September / 2002)