89C1632 Datasheet, PDF (1/13 Pages) Maxwell Technologies – 16 Megabit (512K x 32-Bit) MCM SRAM

89C1632
16 Megabit (512K x 32-Bit)
MCM SRAM
CS 1-4
Address
OE, WE
16 Megabit (512k x 32-bit) SRAM MCM
Power 4Mb SRAM
4Mb SRAM
4Mb SRAM
4Mb SRAM Ground
MCM
I/O 0-7
I/O 8-15
I/O 16-23
Logic Diagram
I/O 24-31
FEATURES:
• Four 512k x 8 SRAM architecture
• RAD-PAK® technology hardens against natural space radia-
tion technology
• Total dose hardness:
- > 100 krad (Si), depending upon space mission
• Excellent Single Event Effects:
- SEL > 101MeV-cm²/mg
- SEU threshold = 3 MeV-cm²/mg
- SEU saturated cross section: 6E-9 cm²/bit
• Package: 68-pin quad flat package
• Fast access time: 20, 25 and 30 ns
• Completely static memory - no clock or timing strobe
required
• Internal bypass capacitor
• High-speed silicon-gate CMOS technology
• 5V or 3V ± 10% power supply
• Equal address and chip enable access times
• Three-state outputs
• All inputs and outputs are TTL compatible
DESCRIPTION:
Maxwell Technologies’ 89C1632 high-performance 16 Mega-
bit Multi-Chip Module (MCM) Static Random Access Memory
features a greater than 100 krad (Si) total dose tolerance,
depending upon space mission. The four 4-Megabit SRAM die
and bypass capacitors are incorporated into a high-reliable
hermetic quad flat-pack ceramic package. With high-perfor-
mance silicon-gate CMOS technology, the 89C1632 reduces
power consumption and eliminates the need for external
clocks or timing strobes. It is equipped with output enable
(OE) and four byte enable (CS1 - CS4) inputs to allow greater
system flexibility. When OE input is high, the output is forced
to high impedance.
Maxwell Technologies' patented RAD-PAK® packaging technol-
ogy incorporates radiation shielding in the microcircuit pack-
age. In a GEO orbit, RAD-PAK provides true greater than 100
krad (Si) total radiation dose tolerance, dependent upon space
mission. It eliminates the need for box shielding while provid-
ing the required radiation shielding for a lifetime in orbit or a
space mission. This product is available with screening up to
Maxwell Technologies self-defined Class K.
01.10.05 Rev 3
[phone] - Fax: [phone] - www.maxwell.com
All data sheets are subject to change without notice 1
©2005 Maxwell Technologies.
All rights reserved.