Dual D-type flip-flop with set and reset;
positive-edge trigger
FEATURES
• Wide supply voltage range of 1.2 V to 3.6 V
• In accordance with JEDEC standard no. 8-1A.
• Inputs accept voltages up to 5.5 V
• CMOS low power consumption
• Direct interface with TTL levels
• Output drive capability 50 transmission lines @ 85°C
DESCRIPTION
The 74LVC74A is a high-performance, low-voltage Si-gate CMOS
device and superior to most advanced CMOS compatible TTL
families.
The 74LVC74A is a dual positive edge triggered, D-type flip-flop with
individual data (D) inputs, clock (CP) inputs, set (SD) and (RD)
inputs; also complementary Q and Q outputs.
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 all data inputs makes the circuit highly
tolerant to slower clock rise and fall times.
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