74LS74 Datasheet – Dual D-type, Filp-Flops ( PDF )

Part Number: 74LS74, SN74LS74

Function: Dual D-type Positive-Edge-Triggered Filp-Flops With Preset And Clear

Package: DIP, SOIC 14 Pin Type

Manufacturer: Texas Instruments


74LS74 datasheet



These devices contain two independent D-type positive-edge-triggered flip-flops. A low level at the preset or clear inputs sets or resets the outputs regardless of the levels of the other inputs. When preset and clear are inactive (high), data at the D input meeting the setup time requirements are transferred to the outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of the clock pulse. Following the hold time interval, data at the D input may be changed without affecting the levels at the outputs.

Logic Diagram :



1. Package Options Include Plastic “Small Outline” Packages, Ceramic Chip Carriers and Flat Packages, and Plastic and Ceramic DIPs

2. Dependable Texas Instruments Quality and Reliability

Other data sheets are available within the file: 74LS74A, 74S74

74LS74 Datasheet PDF Download

74LS74 pdf