SN74LS74 - Dual D-Type Positive Edge-Triggered Flip-Flop, DIP14
The SN54 /74LS74A dual edge-triggered flip-flop utilizes Schottky TTL cir
cuitry to produce high speed D-type flip-flops. Each flip-flop has individual
clear and set inputs, and also complementary Q and Q outputs.
Information at input D is transferred to the Q output on the positive-going
edge of the clock pulse. Clock triggering occurs at a voltage level of the clock
pulse and is not directly related to the transition time of the positive-going
pulse. When the clock input is at either the HIGH or the LOW level, the D input
signal has no effect.