gvt71256d36 ETC-unknow, gvt71256d36 Datasheet - Page 2

• Manufacturer Part Number: gvt71256d36
• Description: 256k 36/512k Synchronous Sram
• Manufacturer: ETC-unknow

NOTE:
May 18, 199 9
Rev. 5/99
GALVANTECH
The Functional Block Diagram illustrates simplified device operation. See Truth Table, pin descriptions and timing
diagrams for detailed information.
ADSC#
ADSP#
* CE2#
MODE
A1-A0
BWE#
BWb#
BWa#
* Note: CE2# is for TA version only.
ADV#
GW#
OE#
CE#
CE2
ZZ
A
* Note: CE2# is for TA version only.
ADSC#
ADSP#
* CE2#
MODE
A1-A0
BWE#
BWa#
BWb#
BWc#
BWd#
ADV#
GW#
CLK
CE#
CE2
OE#
ZZ
Power Down Logic
A
17
256K X 36 FUNCTIONAL BLOCK DIAGRAM
512K X 18 FUNCTIONAL BLOCK DIAGRAM
Power Down Logic
16
, INC.
CLR
CLR
Address
Register
Counter
& Logic
Address
Register
Counter
& Logic
Binary
Binary
256K X 36/512K X 18 SYNCHRONOUS SRAM
BYTE a WRITE
BYTE b WRITE
BYTE c WRITE
BYTE d WRITE
D
D
D
D
D
ENABLE
D
D
D
ENABLE
BYTE b
BYTE a
WRITE
Register
WRITE
Q
Q
Q
Q
Q
2
Input
Register
Q
Q
Q
Input
D
Q
D
D
REGISTER
OUTPUT
Q
Q
D
REGISTER
OUTPUT
GVT71256D36/GVT71512D18
Galvantech, Inc. reserves the right to change products or specifications without notice
Q
DQa,DQb
DQc,DQd
DQa,
DQb
.