PDM31532
PDM31532
64K x 16 CMOS
3.3V Static RAM
Features
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Description
High-speed access times
- Com’l: 9, 10, 12, 15 and 20 ns
- Ind: 12, 15 and 20 ns
Low power operation (typical)
- PDM31532LA
Active: 200 mW
Standby: 10 mW
- PDM31532SA
Active: 250 mW
Standby: 20 mW
High-density 64K x 16 architecture
3.3V (±0.3V) power supply
Fully static operation
TTL-compatible inputs and outputs
Output buffer controls: OE
Data byte controls: LB, UB
Packages:
Plastic SOJ (400 mil) - SO
Plastic TSOP - T (II)
The PDM31532 is a high-performance CMOS static
RAM organized as 65,536 x 16 bits. The PDM31532
features low power dissipation using chip enable
(CE) and has an output enable input (OE) for fast
memory access. Byte access is supported by upper
and lower byte controls.
The PDM31532 operates from a single 3.3V power
supply and all inputs and outputs are fully TTLcompatible.
The PDM31532 is available in a 44-pin 400 mil plastic SOJ and a plastic TSOP (II) package for highdensity surface assembly and is suitable for use in
high-speed applications requiring high-speed
storage.
2
3
4
5
6
7
A8-A0
Row Decoder
Row Address
Buffer
Functional Block Diagram
Data
Input/
Output
Buffer
I/O15-I/O0
Memory
Cell
Array
256 x 128 x 32
32K x 32
8
Vcc
Vss
9
10
Sense Amp
Column
Decoder
WE
OE
UB
LB
CE
11
Control
Logic
Clock
Generator
Column
Address
Buffer
12
A15-A9
Rev. 4.3 - 3/27/98
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