SN54ALS22B, SN74ALS22B
DUAL 4-INPUT POSITIVE-NAND GATES
WITH OPEN-COLLECTOR OUTPUTS

SDAS005A - MARCH 1984 - REVISED MAY 1986

features

• Package Options Include Plastic Small Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs
• Dependable Texas Instruments Quality and Reliability

description

These devices contain two independent 4-input NAND gates. They perform the Boolean functions or Y = A\+B\+C\+D\ in positive logic. The open-collector outputs require pullup resistors to perform correctly. They may be connected to other open-collector outputs to implement active-low wired-OR or active-high wired-AND functions. Open-collector devices are often used to generate higher V_OH levels.

The SN54ALS22B is characterized for operation over the full military temperature range of 55°Cto 125°C. The SN74ALS22B is characterized for operation from 0°C to 70°C.