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54LVTH162244

16-bit buffer/driver with 3-state outputs

MAXWELL TECHNOLOGIES 

54LVTH162244

16-Bit Buffers/Drivers with

3-State Outputs

Logic Diagram

FEATURES:

• RAD-PAK® radiation-hardened against natural space radia-

tion

• Total dose hardness:

- > 100 krad (Si), depending upon space mission

• Output ports 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 VCC)

• Support unregulated battery operation down to 2.7V

• Typical VOLP (Output ground bounce) < 0.8V at VCC = 3.3V,

TA = 25°C

• IOFF and power-up 3-state support hot insertion

• Bus hold on data inputs eliminates the need for external

pull-up/pull-down resistors

• Distributed VCC and GND pin configuration minimizes high-

speed switching noise

• Flow-through architecture optimizes PCB layout

• Package: 48 pin RAD-PAK flat pack

DESCRIPTION:

Maxwell Technologies’ 54LVTH162244 devices are 16-bit buff-

ers and line drivers designed for low-voltage (3.3V) VCC 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-Ω 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 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.

1000607

12.19.01 Rev 1

(858) 503-3300 - Fax: (858) 4503-3301 - www.maxwell.com

All data sheets are subject to change without notice 1

©2001 Maxwell Technologies.

All rights reserved.

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