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Texas Instruments 74F174PC — Logic ICs

74F174PC D-Type Flip-Flop, 80 MHz, 16-DIP – Fairchild 74F

MPN74F174PC
End of Life

Fairchild 74F174PC, 74F series, D-Type flip-flop, 6-bit, single element, positive-edge triggered, non-inverted output, master reset, 80 MHz clock, 10 ns propagation delay at 5 V / 50 pF, 4.5 V to 5.5 V supply, 45 mA quiescent, 0°C to 70°C, 16-DIP through hole, RoHS non-compliant.

$0.34Ref. price · indicative, final on quote
Texas Instruments 74F174PC datasheet (PDF)
Packaging16-DIP (0.300", 7.62mm)
RoHSRoHS non-compliant
Series74F
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

74F174PC specifications
ParameterValue
TypeD-Type
Series74F
Output typeNon-Inverted
Trigger typePositive Edge
MountingThrough Hole
Voltage4.5V ~ 5.5V
Current - quiescent45 mA
Current - output high, low1mA, 20mA
Frequency80 MHz
Operating temperature0°C ~ 70°C (TA)
PackageBulk
FunctionMaster Reset
Case16-DIP (0.300\", 7.62mm)
Number of elements1
Number of bits per element6
Max propagation delay @ v, max CL10ns @ 5V, 50pF

Product details

80 MHz hex D-type with master reset — 16-DIP through-hole

The Fairchild 74F174PC is a hex D-type flip-flop in a 16-pin DIP, built on the 74F bipolar logic family. Each of the six flip-flops shares a common clock (positive-edge triggered) and a common master-reset line that clears all outputs asynchronously. With an 80 MHz maximum clock frequency and 10 ns propagation delay into 50 pF, this part is sized for 5 V synchronous buses, state machines, and register files where speed matters more than the 74LS or 74HC alternatives.

Through-hole 16-DIP — board layout and handling

The 16-DIP (0.300 inch row spacing, 7.62 mm) is a standard through-hole footprint. Mounting type is through hole only; no surface-mount variant exists in this series. The 45 mA quiescent current is typical for 74F logic — about double a 74LS part but well within the capacity of a 5 V linear regulator. Output drive is asymmetric: 1 mA source, 20 mA sink. That means the part can drive a standard TTL load but not a high-current LED or relay directly. The 16-PDIP supplier package code is the same physical body; no thermal pad or heatsink is needed at these power levels.

Frequently asked questions

What are equivalents for 74F174PC?

The SN74LS378N is a through-hole 6-bit D-type from the 74LS family, but it runs at 40 MHz with 27 ns propagation delay — significantly slower. The 74F374SCX-NS is an 8-bit D-type with tri-state outputs in a surface-mount package, so it is not a pin-for-pin drop-in but a functional alternative if you need tri-state bus isolation and can change the board layout.

What is 74F174PC's listed type and series?

The 74F174PC is a D-Type flip-flop in the 74F series. It is a single-element, 6-bit device with positive-edge triggering, non-inverted outputs, and a master-reset function.