GS8644V72C-250I GSI [GSI Technology], GS8644V72C-250I Datasheet - Page 13

• Manufacturer Part Number: GS8644V72C-250I
• Description: 4M x 18, 2M x 36, 1M x 72 72Mb S/DCD Sync Burst SRAMs
• Manufacturer: GSI [GSI Technology]

Byte Write Truth Table
Notes:
1.
2.
3.
4.
Rev: 1.03 11/2004
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
Write all bytes
Write all bytes
All byte outputs are active in read cycles regardless of the state of Byte Write Enable inputs.
Byte Write Enable inputs B
All byte I/Os remain High-Z during all write operations regardless of the state of Byte Write Enable inputs.
Bytes “
Write byte a
Write byte b
Write byte c
Write byte d
Function
Read
Read
C
” and “
D
” are only available on the x36 version.
GW
H
H
H
H
H
H
H
L
A
, B
B
, B
C
, and/or B
BW
H
X
L
L
L
L
L
L
D
may be used in any combination with BW to write single or multiple bytes.
B
H
H
H
H
X
L
L
X
A
13/40
GS8644V18(B/E)/GS8644V36(B/E)/GS8644V72(C)
B
X
H
H
H
H
X
L
L
B
B
X
H
H
H
H
X
L
L
C
B
H
H
H
H
X
L
L
X
D
Notes
2, 3, 4
2, 3, 4
2, 3, 4
2, 3
2, 3
Product Preview
1
1
© 2003, GSI Technology