GS78132AB Datasheet, PDF (1/12 Pages) GSI Technology – 256K x 32 8Mb Asynchronous SRAM

GS78132AB
BGA
Commercial Temp
Industrial Temp
256K x 32
8Mb Asynchronous SRAM
8, 10, 12 ns
3.3 V V_DD
Features
• Fast access time: 8, 10, 12 ns
• CMOS low power operation: 260/210/180 mA at minimum
cycle time
• Single 3.3 V ± 0.3 V power supply
• All inputs and outputs are TTL-compatible
• Byte control
• Fully static operation
• Industrial Temperature Option: –40° to 85°C
• 14 mm x 22 mm, 119-bump, 1.27 mm Pitch Ball Grid Array
package
• RoHS-compliant package available
Description
The GS78132A is a high speed CMOS Static RAM organized
as 262,144-words by 32-bits. Static design eliminates the need
for external clocks or timing strobes. The GS78132A operates
on a single 3.3 V power supply, and all inputs and outputs are
TTL-compatible. The GS78132A is available in a
14 mm x 22 mm BGA package.
Pin Descriptions
Symbol
Description
A0 to A17
Address input
CE
Chip enable input
DQA1 TO DQA8
Byte A Data input/output
DQB1 TO DQB8
Byte B Data input/output
DQC1 TO DQC8
Byte C Data input/output
DQD1 TO DQD8
Byte D Data input/output
BA
Byte A Byte enable input
BB
Byte B Byte enable input
BC
Byte C Byte enable input
BD
Byte D Byte enable input
WE
Write enable input
OE
Output enable input
V_DD
+3.3 V power supply
V_SS
Ground
NC
No connect
Block Diagram
A0
Row
Decoder
Address
Input
Buffer
A17
CE
WE
OE
Control
Bx ^____
Memory Array
Column
Decoder
I/O Buffer
DQ1
DQ32
Rev: 1.04 5/2006
1/12
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2003, GSI Technology