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54LVTH162245RPFS Datasheet(PDF) 1 Page - Maxwell Technologies |
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54LVTH162245RPFS Datasheet(HTML) 1 Page - Maxwell Technologies |
1 / 10 page 1 All data sheets are subject to change without notice (858) 503-3300 - Fax: (858) 503-3301 - www.maxwell.com 16-Bit Bus Transceivers with 54LVTH162245 ©2002 Maxwell Technologies All rights reserved. 3-State Outputs 11.15.02 Rev 2 / / / / 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 VCC =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. Logic Diagram |
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