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54LVTH162244RPFS Datasheet

  • 54LVTH162244RPFS

  • 16-Bit Buffers/Drivers with 3-State Outputs

  • 216.23KB

  • 9頁(yè)

  • MAXWELL

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16-Bit Buffers/Drivers with
3-State Outputs
54LVTH162244
Memory
Logic Diagram
F
EATURES
:
鈥?R
AD
-P
AK
廬 radiation-hardened against natural space radia-
tion
鈥?Total dose hardness:
- > 100 krad (Si), depending upon space mission
鈥?Output ports have equivalent 22-
鈩?/div>
series resistors, so no
external resistors are required
鈥?Support mixed-mode signal operation (5V input and output
voltages with 3.3V V
CC
)
鈥?Support unregulated battery operation down to 2.7V
鈥?Typical V
OLP
(Output ground bounce) < 0.8V at V
CC
= 3.3V,
T
A
= 25
擄
C
鈥?I
OFF
and power-up 3-state support hot insertion
鈥?Bus hold on data inputs eliminates the need for external
pull-up/pull-down resistors
鈥?Distributed V
CC
and GND pin configuration minimizes high-
speed switching noise
鈥?Flow-through architecture optimizes PCB layout
鈥?Package: 48 pin R
AD
-P
AK
flat pack
D
ESCRIPTION
:
Maxwell Technologies鈥?54LVTH162244 devices are 16-bit buff-
ers and line drivers designed for low-voltage (3.3V) V
CC
oper-
ation, but with the capability to provide a TTL interface to a 5V
system environment. These devices can be used as four 4-bit
buffers, two 8-bit buffers, or one 16-bit buffer. These devices
provide true outputs and symmetrical active-low output-enable
(OE) inputs.
The outputs, which are designed to source or sink up to 12
mA, include equivalent 22-
鈩?/div>
series resistors to reduce over-
shoot and undershoot. Active bus-hold circuitry is provided to
hold unused or floating data inputs at a valid logic level.
Maxwell Technologies' patented R
AD
-P
AK
廬 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, R
AD
-P
AK
provides greater than 100
krad (Si) radiation dose tolerance. This product is available
with screening up to Class S.
All data sheets are subject to change without notice
1000607
12.19.01 Rev 1
1
(858) 503-3300 - Fax: (858) 4503-3301 - www.maxwell.com
漏2001 Maxwell Technologies.
All rights reserved.

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