7438 - Fairchild Semiconductor

7438 Quad 2-Input NAND Buffers

This device contains four independent gates each of which performs the logic NAND function. The open-collector outputs require external pull-up resistors for proper logical operation. Pull-Up Resistor Equations Where: N1 (IOH) = total maximum output high current for all outputs tied to pull-up resistor N2 (IIH) = total maximum input high current for all i.

Features

also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Connection Diagram Function Table Y = AB Inputs AB LL LH HL HH H = HIGH Logic Level L = LOW Logic Level Output Y H H H L © 2000 Fairchild Semiconductor Corporation DS006513 www.fairchildsemi.com DM7438
• 7438 Absolute Maximum Ratings(Note 1) Supply Voltage 7V Input Voltage 5.5V Output Voltage 7V Operating Free Air Temperature Range 0°C to +70°C Storage Temperature Range −65°C to +150°C Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety of the device ca.