The TC74AC573P/F/FT is an advanced high speed CMOS OCTAL LATCH fabricated with silicon gate and double-layer metal wiring C2MOS technology. It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation.
The TC74AC573 series is an advanced high‑speed CMOS octal D‑type latch with three‑state outputs. It provides high‑speed operation comparable to bipolar Schottky TTL while maintaining low CMOS power dissipation. All inputs have static‑discharge protection and the device features symmetrical output impedance and the ability to drive 50 Ω transmission lines.
Typical electrical characteristics include a propagation delay of 6 ns, low supply current (8 µA max at 25 °C), and operation over a 2.0 V to 5.5 V supply range. The device is offered in DIP‑20, SOP‑20 and TSSOP‑20 packages with typical weights of 1.30 g, 0.22 g and 0.08 g respectively. Absolute maximum ratings and reliability notes are provided for safe design use.
| Propagation delay (tpd) | 6.0 ns (typ.) at VCC = 5 V |
|---|---|
| Supply current (Icc) | 8 µA (max) at Ta = 25°C |
| Noise immunity (VNIH/VNIL) | 28% VCC (min) |
| Output drive capability | |IoH| = |IoL| = 24 mA (min) |
| Operating supply voltage | 2.0 V to 5.5 V |
| Absolute maximum supply voltage | -0.5 V to 7.0 V |
The typical propagation delay is 6.0 ns at a 5 V supply.
It operates from 2.0 V to 5.5 V, with absolute maximum ratings of –0.5 V to 7.0 V.
Each output can source or sink at least 24 mA.