81840 Datasheet, PDF (1/12 Pages) List of Unclassifed Manufacturers – 128 Channel Multiplexer

81840
See page 2 for pin assignments.
FEATURES:
• 128 channel multiplexer, MCM
• Package:
- 256 pin RAD-PAK® quad flat pack
• Total dose hardness:
- > 300 krads(Si)
• - Dependent upon orbit
• Excellent Single Event Effects:
SEL: > 110 MeV-cm²/mg
SEU: > 110 MeV-cm²/mg
81840
128 Channel Multiplexer
ADDRESS ENABLE
COMMON TO ALL
INPUT MUX’s
8
CLAMP/
PRECHARGE
8
ADDRESS
ENABLE
4
BYPASS
CASCADE
INPUT
7
ADDRESS
ENABLE
4
V+
(+15V)
V-
(-15V)
16
128 TOTAL
ANALOG INPUTS
16
GROUND 8
REFERENCE
INPUTS
SPARE ⁸
INPUTS
IN _16:1
1840A
5
IN _16:1
1840A
(8 TOTAL 1840A’s)
5
GRND
IN
16:1
OUT
IN
1840A
8
GRND
5
GRND
IN
16:1 ^OUT
1840A
+
POSITIVE
OUTPUT
8
GRND
IN
8
GRND
IN _16:1
OUT
1840A
8
5
16:1
IN
1840A
GRND
5
8
ADDRESS ENABLE
GRND
4
ADDRESS
ENABLE
SPARE
OUTPUT
4
8
ADDRESS GRND VREF SPARE
ENABLE
(+5V) INPUT
-
NEGATIVE
OUTPUT
16:1 ^OUT
1840A
5
SPARE
OUTPUT
4
ADDRESS
ENABLE
DESCRIPTION:
Maxwell Technologies’ 81840 high-performance 128-channel
multiplexer features a typical 300 krad (Si) total dose tolerance.
This datasheet defines the design, performance, and test require-
ments for a hermetic, telemetry multiplexer, multi-chip-module
(MCM), utilizing chip and wire technology to be used in space
systems. The 81840 is intended for use in the environments
encountered by high reliability spacecraft applications. The pat-
ented radiation-hardened RAD-PAK® technology incorporates radi-
ation shielding in the microcircuit package. Capable of surviving
in-space environment, the 81840 is ideal for satellite, spacecraft,
and space probe missions. It is available up to Class K screening.
06.17.02 REV 5 All data sheets are subject to change without notice 1
[phone] - Fax: [phone] - www.maxwell.com
©2021 Maxwell Technologies
All rights reserved.