SN75ALS123 Datasheet | Texas Instruments

description The SN75ALS123 dual line driver is specifically designed to meet the input interface specifications for the IBM System 360. It is patible with standard TTL logic and supply voltage levels. The low-impedance, emitter-follower outputs drive terminated lines such as coaxial cable, strip line, or twisted pair. The unmitted output allows wired-OR logic to be performed in party-line applications. Output short-circuit protection is provided by an internal clamping network that turns on when the output voltage drops below approximately 1.5 V. All inputs are in conventional TTL configuration. Gating can be used during power-up and power-down sequences to ensure that no noise is introduced on the line. The SN75ALS123 employs the IMPACT process to achieve fast switching speeds, low power dissipation, and reduced input current requirements. The SN75ALS123 is characterized for operation from 0°C to 70°C. SN75ALS123 DUAL LINE DRIVER ą SLLS031B - D1332, SEPTEMBER 1987 - REVISED FEBRUARY 1993 D 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 2A 9 2Y NOT REMENDED FOR NEW DESIGN FUNCTION TABLE INPUTS OUTPUT AB C D E F HH H H X X XX X XHH All other input binations H = high level L = low level X = irrelevant logic symbol† 1A 1 1B 2 1C 3 1D 4 1E 5 1F 6 2A 10 2B 11 2C 12 2D 13 2E 14 2F 15 & ≥1 & 7 1Y 9 2Y † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. logic diagram, each driver (positive logic) IMPACT is a trademark of Texas Instruments Incorporated. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. A B C DY E Copyright  1993, Texas Instruments Incorporated - POST OFFICE BOX 655303 DALLAS, TEXAS 75265 - POST OFFICE BOX 1443 HOUSTON, TEXAS 77001 2- 1 SN75ALS123 DUAL LINE...