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Texas Instruments SN74HC74N — Microcontrollers & Processors (MCU / MPU / DSP)

SN74HC74N D-Type Flip-Flop, 60 MHz, 2V-6V, 14-DIP, Active

MPNSN74HC74N
End of Life

Texas Instruments 74HC series D-Type flip-flop, SN74HC74N, dual 1-bit, positive edge trigger, complementary outputs, set and reset, 60 MHz, 2V-6V, 14-DIP, tube.

$0.6Ref. price · indicative, final on quote
Packaging14-DIP (0.300", 7.62mm)
RoHSROHS3 Compliant
Series74HC
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN74HC74N specifications
ParameterValue
TypeD-Type
Series74HC
Output typeComplementary
Trigger typePositive Edge
MountingThrough Hole
Supply voltage2V ~ 6V
Current - quiescent4 µA
Current - output high, low5.2mA, 5.2mA
Clock frequency60 MHz
Operating temperature-40°C ~ 85°C (TA)
PackageTube
FunctionSet(Preset) and Reset
Case14-DIP (0.300\", 7.62mm)
Input capacitance3 pF
Number of elements2
Number of bits per element1
Max propagation delay @ v, max CL30ns @ 6V, 50pF

Product details

60 MHz dual D-type with set/reset

The SN74HC74N is a dual D-type flip-flop from the 74HC series, each element storing one bit with complementary outputs. It triggers on the positive edge of the clock and includes independent set (preset) and reset inputs for asynchronous control. Clock frequency reaches 60 MHz, with a propagation delay of 30 ns at 6 V into a 50 pF load — fast enough for moderate-speed logic chains in control or data buffering. Quiescent current is 4 µA, keeping the power budget tight in battery-backed or always-on sections.

Through-hole 14-DIP for prototyping and legacy boards

Housed in a 14-pin DIP (0.300" width, 7.62 mm pitch), the SN74HC74N is through-hole mounted — a natural fit for breadboard prototyping, socketed production runs, or rework on existing 74-series footprints. Operating temperature range is -40°C to 85°C, suitable for industrial environments where the enclosure sees ambient swings but not extreme heat. Output drive capability is 5.2 mA source and sink per channel, enough to drive standard TTL loads or a few CMOS gate inputs directly.

Frequently asked questions

Will SN74HC74N drop into a board designed for SN74LS378N?

Both are 14-pin DIP packages, but the SN74HC74N runs on 2-6 V supply and provides complementary outputs, while the SN74LS378N requires 4.75 V and outputs only non-inverted signals. The pinout and function are not identical — verify the schematic before substitution.