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54LVTH244A Datasheet(PDF) 1 Page - Maxwell Technologies |
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54LVTH244A Datasheet(HTML) 1 Page - Maxwell Technologies |
1 / 9 page 1 All data sheets are subject to change without notice (858) 503-3300 - Fax: (858) 503-3301 - www.maxwell.com 3.3V ABT 8-Bit Octal 54LVTH244A ©2001 Maxwell Technologies All rights reserved. Buffers/Drivers 12.19.01 Rev 1 1000601 FEATURES: • 3.3V ABT octal buffers/drivers with 3-state outputs •RAD-PAK® radiation-hardened against natural space radia- tion • Package: - 20 Pin RAD-PAK® flat package • Operating temperature range: -55 to 125°C • Supports mixed-mode signal operation -5V Input and Output Voltages with 3.3V V CC • Supports mixed-mode signal operation - 5V input and output voltages with 3.3V V CC • Supports unregulated battery operation down to 2.7V •Typical V OLP (output ground bounce) < 0.8V at VCC=3.3V, T A=25 ° C • Supports live insertion • Bus-hold data inputs eliminate the need for external pullup resistors DESCRIPTION: Maxwell Technologies’ 54LVTH244A octal buffers/drivers micro-circuit is housed in a Rad-Pak® package. The 54LVTH244A is designed specifically for low voltage (3.3V) V CC operation, but with the capability to provide a TTL inter- face to a 5V system environment. The 54LVTH244A is orga- nized 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. The 54LVTH244A active bus hold circuitry is provided to prevent floating data inputs at a valid logic level and to eliminate the need for pullup resistors. 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 a space mission. This product is available with packaging and screen- ing up to Class S. Logic Diagram |
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