Skip to main content
Log in
Texas Instruments 74AC11074N — Logic ICs

74AC11074N Dual D-Type Flip-Flop, 150 MHz, 14-PDIP

MPN74AC11074N
End of Life

Texas Instruments 74AC11074N, 74AC series, D-Type flip-flop, dual 1-bit, positive edge trigger, complementary outputs, set and reset, 150 MHz, 3V to 5.5V supply, -40°C to 85°C, 14-DIP through hole.

$2.35Ref. price · indicative, final on quote
Texas Instruments 74AC11074N datasheet (PDF)
Packaging14-DIP (0.300", 7.62mm)
RoHSROHS3 Compliant
Series74AC
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

74AC11074N specifications
ParameterValue
TypeD-Type
Series74AC
Output typeComplementary
Trigger typePositive Edge
MountingThrough Hole
Voltage3V ~ 5.5V
Current - quiescent4 µA
Current - output high, low24mA, 24mA
Frequency150 MHz
Operating temperature-40°C ~ 85°C (TA)
PackageTube
FunctionSet(Preset) and Reset
Case14-DIP (0.300\", 7.62mm)
Input capacitance3.5 pF
Number of elements2
Number of bits per element1
Max propagation delay @ v, max CL7.5ns @ 5V, 50pF

Product details

Dual D-type flip-flop in a through-hole DIP

Each of the two elements stores one bit, clocked up to 150 MHz. The 14-pin DIP package is a through-hole part, so it sits on a breadboard or a production board with 0.300-inch row spacing — no reflow profile needed, just a clean wave or hand-solder joint.

Supply range and drive capability

Supply voltage spans 3 V to 5.5 V. Quiescent current is 4 µA.

150 MHz clock — timing margin for fast counters

Maximum clock frequency is 150 MHz. Propagation delay is 7.5 ns at 5 V, 50 pF.

It fits outdoor telecom cabinets, factory-floor PLC I/O modules, and engine-bay-adjacent electronics that see thermal cycling but not continuous under-hood heat. The 14-PDIP package has a modest thermal mass — no heatsinking needed, but keep it away from high-power resistors or regulators on the same board if ambient runs near the upper limit.

Frequently asked questions

What is the difference between 74AC11074N and 74ACT11074?

The 74ACT11074 includes TTL-compatible input thresholds, while the 74AC11074 uses standard CMOS thresholds. If your driving logic is 3.3 V CMOS with marginal high-level output, the ACT variant provides tighter noise margin. For 5 V TTL or 3.3 V CMOS with full rail swing, the AC version works directly.

Can 74AC11074N replace 74AC74 or 74HC74?

The 74AC11074N is pin-compatible with the 74AC74 and 74HC74 in the same DIP-14 footprint — same dual D-type function with set and reset. The 74AC11074N offers a wider supply range (3 V to 5.5 V) and higher clock speed (150 MHz) compared to the 74HC74, which tops out around 20-30 MHz at 5 V. For a drop-in replacement, verify the input threshold and propagation delay against your design's timing budget.

What are the typical applications of the 74AC11074N?

This dual D-type flip-flop is used in high-speed counters, shift registers, frequency dividers, state machine registers, and pipeline stages in industrial control, telecom, and test equipment. Its 150 MHz clock and 24 mA output drive suit it for bus-interface latching and clock-domain crossing in 3.3 V and 5 V systems.