1
Memory
All data sheets are subject to change without notice
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CMOS Logic Hex
54HC4050
©2001 Maxwell Technologies.
All rights reserved.
Non-Inverting Buffers
12.19.01 Rev 11000587
FEATURES:
• High speed CMOS logic hex non-inverting buffers
•RAD-PAK® radiation hardened against natural space radia-
tion
• Single Event Effects:
- SEL: > 120 MeV/mg/cm2
• Total dose hardness:
• - > 100 Krad (Si), depending upon space mission
• Package:
-16 Pin RAD-PAK® Flat Pack
• Typical propagation delay:
- 6ns at V
CC
= 5V, C
L
= 15pF, T
A
= 25°C
• High-to-Low voltage level converter for up to V
I
= 16V
• Fanout (over temperature range)
-10 LSTTL loads (Standard Outputs)
-15 LSTTL loads (Bus Driver Outputs)
• Balanced propagation delay and transition times
• Significant power reduction compared to LSTTL logic ICs
• 2V to 6V operation
• High noise immunity
•-N
IL
= 30%, N
IH
= 30% of V
CC
at V
CC
= 5V
DESCRIPTION:
Maxwell Technologies' 54HC4050 high speed CMOS Logic
Hex Non-Inverting Buffers features a greater than 100 krad(Si)
total dose tolerance, depending upon space mission. These
parts have a modified input protection structure that enables
them to be used as logic level translators which will convert
high-level logic to a low-level logic while operating off the low-
level logic supply. For example, 15V input pulse levels can be
down-converted to 0V to 5V logic levels. The modified input
protection structure protects the input from negative electro-
static discharge. The 54HC4050 can be used as simple buff-
ers or inverters without level translation.
Maxwell Technologies' patented RAD-PAK® packaging technol-
ogy incorporates radiation shielding in the microcircuit pack-
age. It eliminates the need for box shielding while providing
the required radiation shielding for a lifetime in orbit or space
mission. In a GEO orbit, RAD-PAK provides greater than 100
krad (Si) radiation dose tolerance. This product is available
with screening up to Class S.
Logic Diagram