74HCT74D Series

Dual D-type flip-flop with set and reset; positive edge-trigger

Manufacturer: Freescale Semiconductor - NXP

Catalog

Dual D-type flip-flop with set and reset; positive edge-trigger

Part	Function	Number of Bits per Element	Trigger Type	Max Propagation Delay @ V, Max CL	Clock Frequency	Supplier Device Package	Output Type	Mounting Type	Package / Case [x]	Package / Case [y]	Package / Case	Input Capacitance	Operating Temperature [Min]	Operating Temperature [Max]	Number of Elements	Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Current - Output High, Low [custom]	Current - Output High, Low [custom]
Freescale Semiconductor - NXP 74HCT74D,653	Reset Set(Preset)	1	Positive Edge	44 ns	59 MHz	14-SO	Complementary	Surface Mount	0.154 in	3.9 mm	14-SOIC	3.5 pF	-40 °C	125 °C	2	D-Type	4.5 V	5.5 V	4 mA	4 mA

Catalog

Dual D-type flip-flop with set and reset; positive edge-trigger

Description

The 74HC74 and 74HCT74 are dual positive edge triggered D-type flip-flop. They have individual data (nD), clock (nCP), set (nSD) and reset (nRD) inputs, and complementary nQ and nQoutputs. Data at the nD-input, that meets the set-up and hold time requirements on the LOW-to-HIGH clock transition, is stored in the flip-flop and appears at the nQ output. Schmitt-trigger action in the clock input, makes the circuit highly tolerant to slower clock rise and fall times. Inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC.