Octal Buffers/Drivers
54BCT244
Memory
Logic Diagram
F
EATURES
:
• 3-state outputs drive bus lines or buffer memory address
registers
• R
AD
-P
AK
® radiation-hardened against natural space radia-
tion
• Total dose hardness:
- >100 krad (Si), depending upon space mission
• Package:
- 20-pin R
AD
-P
AK
® flat package
• Operating temperature range:
-55 to 125
°
C
• P-N-P inputs reduce DC loading
• Typical V
OLP
(output ground bounce)
- < 0.8 V at V
CC
=3.3 V, T
A
=25
°
C
• ESD protection exceeds 2000 V
D
ESCRIPTION
:
Maxwell Technologies’ 54BCT244 octal buffers and line driv-
ers features a greater than 100 krad (Si) total dose tolerance;
depending upon space misssion. The 54BCT244 is organized
as two 4-bit drivers with separate output enable (OE) inputs.
When OE is low, the device passes data from the A inputs to
the Y outputs. When OE is high, the outputs are in the high
impedance state.
Maxwell Technologies' patented R
AD
-P
AK
® 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 a space
mission. In a GEO orbit, R
AD
-P
AK
provides true greater than
100 krad (Si) total radiation dose tolerance, dependent upon
space mission. This product is available with packaging and
screening up to Class S.
1000608
12.19.01 Rev 5
All data sheets are subject to change without notice
1
(858) 503-3300 - Fax: (858) 503-3301 - www.maxwell.com
©2001 Maxwell Technologies
All rights reserved.
MAXWELL [ MAXWELL TECHNOLOGIES ]
