MC74AC20/MC74ACT20 is a dual 4-input NAND gate. The two models differ in that MC74ACT20 has TTL compatible inputs. The device operates over a supply voltage range of -0.5~+7V, with input current of -20mA and output current of 24mA.
This document provides comprehensive technical specifications for the MC74AC20 and MC74ACT20 dual 4-input NAND gates. It covers maximum ratings, recommended operating conditions, and detailed DC and AC characteristics for both the 74AC and 74ACT series variants.
| Supply Voltage (AC) | 2.0 to 6.0 V |
|---|---|
| Supply Voltage (ACT) | 4.5 to 5.5 V |
| Output Source/Sink Current | 24 mA |
| Storage Temperature | -65 to +150 °C |
| Input Capacitance | 4.5 pF |
| Power Dissipation Capacitance | 40 pF |
The maximum supply voltage for the AC version is 6.0 V.
The minimum high-level input voltage is 1.5 V.