54LVTH162245 Datasheet, PDF (1/10 Pages) Maxwell Technologies – 16-Bit Bus Transceivers with 3-State Outputs

54LVTH162245
16-Bit Bus Transceivers with
3-State Outputs
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Logic Diagram
FEATURES:
• A-Port outputs have equivalent 22-Ω series resistors, so
no external resistors are required
• Support mixed-mode signal operation (5V input and output
voltages with 3.3V V_CC)
• Support unregulated battery operation down to 2.7V
• Typical V_OLP (output ground bounce) < 0.8V at V_CC = 3.3V,
T_A = 25^°C
• I_OFF and power-up 3-state support hot insertion
• Bus hold on data inputs eliminates the need for external
pullup/pulldown resistors
• Distributed V_CC and GND pin configuration minimizes high-
speed switching noise
• Flow-through architecture optimizes PCB layout
• Total dose hardness:
- > 100 krad (Si), depending upon space mission
• Package: 48 pin RAD-PAK® flat pack
DESCRIPTION:
Maxwell Technologies’ 54LVTH162245 devices are 16-bit
(dual-octal) non-inverting 3-state transceivers designed for
low-voltage (3.3V) V_CC operation, but with the capability to
provide a TTL interface to a 5V system environment. These
devices can be used as two 8-bit transceivers or one 16-bit
transceiver. The devices allow data transmission from the A
bus to the B bus or form the B bus to the A bus, depending on
the logic level at the direction-control (DIR) input. The output
enable (OE) input can be used to disable the device so that
the buses are effectively isolated. The A-port outputs, which
are designed to source or sink up to 12 mA, include equivalent
22-Ω series resistors to reduce overshoot and undershoot.
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.
11.15.02 Rev 2
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All data sheets are subject to change without notice 1
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All rights reserved.