SN54AC574/SN74AC574 is an 8-bit D-type flip-flop with 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. The device is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
The SN74AC574 octal D‑type edge‑triggered flip‑flop features three‑state outputs suitable for bus‑oriented systems, buffer registers, I/O ports and bidirectional drivers. It operates from 2 V to 6 V and offers up to 8.5 ns propagation delay at 5 V.
The datasheet lists detailed electrical characteristics, timing requirements, and mechanical dimensions for multiple package styles (PDIP, SOIC, SSOP, TSSOP, etc.). Ordering information, package thermal impedance, and availability notices are also included.
| Supply voltage (VCC) | 2 V to 6 V |
|---|---|
| Maximum propagation delay (tpg) | 8.5 ns at 5 V |
| Pin count (PDIP) | 16 pins |
It operates from 2 V to 6 V.
PDIP, SOIC, SSOP, TSSOP, LOCC, CDIP, CFP and other variants are listed.