eroflex Circuit Technology - Advanced Multichip Modules © SCD3360 REV B 12/17/98

Block Diagram – PGA Type Package(P1,P7) & CQFP(F2)

512Kx8

512Kx8

512Kx8

512Kx8

OE

8

8

8

8

Pin Description

Data I/O

Address Inputs

Write Enables

Chip Enables

OE

Output Enable

Power Supply

GND

Ground

NC

Not Connected

General Description

The ACT–S512K32V is a High

Speed 4 megabit CMOS SRAM

Multichip

Module

(MCM)

designed for full temperature

range,

3.3V

Power

Supply,

military, space, or high reliability

mass memory and fast cache

applications.

The MCM can be organized

as a 512K x 32 bits, 1M x 16

bits or 2M x 8 bits device and is

input

and

output

TTL

compatible. Writing is executed

when the write enable (WE)

and chip enable (CE) inputs are

low. Reading is accomplished

when WE is high and CE and

output enable (OE) are both

low. Access time grades of

17ns, 20ns, 25ns, 35ns and

45ns maximum are standard.

The products are designed for

operation over the temperature

range of -55°C to +125°C and

screened under the full military

environment.

DESC Standard

Military Drawing (SMD) part

numbers are pending.

The

ACT-S512K32V

is

manufactured

in

Aeroflex’s

MIL-PRF-38534

certified facility in Plainview,

N.Y.

Features

s

4 Low Power CMOS 512K x 8 SRAMs in one MCM

s

Overall configuration as 512K x 32

s

Input and Output TTL Compatible

s

17, 20, 25, 35 & 45ns Access Times, 15ns Available by

Special Order

s

Full Military (-55°C to +125°C) Temperature Range

s

+3.3V Power Supply

s

Choice of Surface Mount or PGA Type Co-fired Packages:

q

68–Lead, Dual-Cavity CQFP (F2), .88"SQ x .20"max (.18"max

thickness available, contact factory for details) (Drops into the

68 Lead JEDEC .99"SQ CQFJ footprint)

q

66–Pin, PGA-Type (P1), 1.38"SQ x .245"max

q

66–Pin, PGA-Type (P7), 1.08"SQ x .185"max

s

Internal Decoupling Capacitors

s

DESC SMD# Pending

CIRCUIT TECHNOLOGY

www.aeroflex.com/act1.htm

ACT-S512K32V High Speed 3.3Volt

16 Megabit SRAM Multichip Module