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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.