Philips HCT03 Manuals

The 74HC/HCT03 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT03 provide the 2-input NAND function. The 74HC/HCT03 have open-drain N-transistor outputs, which are not clamped by a diode connected to VCC. In the OFF-state, i.e. when one input is LOW, the output may be pulled to any voltage between GND and VOmax. This allows the device to be used as a LOW-to-HIGH or HIGH-to-LOW level shifter. For digital operation and OR-tied output applications, these devices must have a pull-up resistor to establish a logic HIGH level.

This document describes the features and characteristics of the 74HC/HCT03 quad 2-input NAND gate, including level shift capability, output capability, and current consumption. The product is a high-speed Si-gate CMOS device, pin compatible with low power Schottky TTL. It can be used as a level shifter for low-to-high or high-to-low transitions, and requires a pull-up resistor for digital operation and OR-tied output applications.