CMOS Static RAM
1 Meg (256K x 4-Bit)
Features
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IDT71028
Description
256K x 4 advanced high-speed CMOS static RAM
Equal access and cycle times
— Commercial and Industrial: 12/15/20ns
One Chip Select plus one Output Enable pin
Bidirectional data inputs and outputs directly
TTL-compatible
Low power consumption via chip deselect
Available in 400 mil Plastic SOJ package.
The IDT71028 is a 1,048,576-bit high-speed static RAM organized as 256K x 4. It is fabricated using IDT’s high-perfomance, highreliability CMOS technology. This state-of-the-art technology, combined with innovative circuit design techniques, provides a costeffective solution for high-speed memory needs.
The IDT71028 has an output enable pin which operates as fast
as 6ns, with address access times as fast as 12ns. All bidirectional
inputs and outputs of the IDT71028 are TTL-compatible and operation is from a single 5V supply. Fully static asynchronous circuitry
is used, requiring no clocks or refresh for operation.
The IDT71028 is packaged in a 28-pin 400 mil Plastic SOJ.
Functional Block Diagram
A0
•
•
ADDRESS
DECODER
•
1,048,576-BIT
MEMORY
ARRAY
•
•
•
A17
I/O0–I/O3
CS
WE
OE
4
4
I/O CONTROL
CONTROL
LOGIC
2966 drw 01
MARCH 2005
1
©2005 Integrated Device Technology, Inc.
DSC-2966/09
