The 74AC74 • 74ACT74 is a dual D-type positive edge-triggered flip-flop with asynchronous clear and set inputs and complementary (Q, Q) outputs. It features reduced power consumption, high output source/sink capability, and TTL-compatible inputs.
The 74AC74 and 74ACT74 are dual D‑type positive edge‑triggered flip‑flops with asynchronous set and clear inputs and complementary Q/Q̅ outputs. Information present at the data input is transferred to the outputs on the rising edge of the clock pulse, and the device features TTL‑compatible inputs.
The document lists ordering codes for multiple package options (SOIC, SOP, TSSOP, PDIP), gives absolute maximum ratings, recommended operating conditions, DC and AC electrical characteristics, and detailed mechanical dimensions. It also includes a life‑support policy disclaimer and a connection diagram for reference.
| Output source/sink current | 24 mA |
|---|---|
| Supply voltage range (VCC) | -0.5 V to +7.0 V |
| Lead pitch (SOIC) | 0.150 in |
The Set (Sp) input forces Q high when low, and the Clear (Cp) input forces Q low when low; both operate independently of the clock.
Each output can source or sink up to 24 mA.
The recommended supply voltage range is from –0.5 V to +7.0 V.