SN75ALS121 Datasheet (Texas Instruments)

SN75ALS121, Dual Line Driver

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.

D OR N PACKAGE (TOP VIEW) 1A 1B 1C 1D 1E 1F 1Y GND 1 2 3 4 5 6 7 8 16 VCC 15 2F 14 2E 13 2D 12 2C 11 2B 10

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