74HC74 PDF – Dual D-type Flip-Flop – Philips

Part number : 74HC74, 74HC74N, 74HC74DB

Functions : Dual D-type flip-flop with set and reset

Package information : DIP 14, SO14, SSOP14, TSSOP 14 Type

Manufacturer : Philips Semiconductor

Image :

74HC74 D Flip Flop


The 74HC74, 74HCT74 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 set and reset are asynchronous active LOW inputs and operate independently of the clock input. Information on the data input is transferred to the Q output on the LOW-to-HIGH transition of the clock pulse. The D inputs must be stable one set-up time prior to the LOW-to-HIGH clock transition for predictable operation. Schmitt-trigger action in the clock input makes the circuit highly tolerant to slower clock rise and fall times.


74HC74 pinout datasheet

Functions :

1. Output capability: standard
2. ICC category: flip-flops

Block diagram

74HC74 Block Diagram


74HC74 Datasheet PDF