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SN75ALS121 - Dual Line Driver

General Description

The SN75ALS121 dual line driver is designed for digital data transmission over lines having impedances from 50 to 500 Ω.

It is compatible with standard TTL logic and supply voltage levels.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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ą SN75ALS121 DUAL LINE DRIVER ą SLLS030A − D1334, SEPTEMBER 1987 − REVISED AUGUST 1989 • Permits Digital Data Transmission Over Coaxial Cable, Strip Line, or Twisted Pair • Operates With 50-Ω to 500-Ω Transmission Lines • TTL Compatible With 5-V Supply • 2.4-V Output at IOH = −75 mA • Uncommitted Emitter-Follower Output Structure for Party-Line Operation • IMPACT Low-Power Schottky Technology • Improved Replacement for the SN75121 and Signetics 8T13 • Glitchless Power Up/Power Down • Short-Circuit Protection • AND-OR Logic Configuration • High Speed . . . Maximum Propagation Delay Time of 14 ns at CL = 15 pF description The SN75ALS121 dual line driver is designed for digital data transmission over lines having impedances from 50 to 500 Ω.