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74AHCT74PW

Nexperia · Flip Flops · TSSOP-14

74AHCT74PW from Nexperia, in a TSSOP-14. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 1RD input Asynchronous reset direct input (active LOW) that operates independent of the clock input.
2 1D input Data input, transferred to 1Q on the LOW to HIGH clock transition, with set-up time required before the clock edge.
3 1CP input Clock input, edge-triggered on the LOW to HIGH transition, with Schmitt-trigger action that tolerates slow rise and fall times.
4 1SD input Asynchronous set direct input (active LOW) that operates independent of the clock input.
5 1Q output True flip-flop output.
6 1Q output Complement flip-flop output.
7 GND power_in Ground (0 V) reference for all voltages on the device.
8 2Q output Complement flip-flop output.
9 2Q output True flip-flop output.
10 2SD input Asynchronous set direct input (active LOW) that operates independent of the clock input.
11 2CP input Clock input, edge-triggered on the LOW to HIGH transition, with Schmitt-trigger action that tolerates slow rise and fall times.
12 2D input Data input, transferred to 2Q on the LOW to HIGH clock transition, with set-up time required before the clock edge.
13 2RD input Asynchronous reset direct input (active LOW) that operates independent of the clock input.
14 VCC power_in Supply voltage: 2.0 V to 5.5 V for 74AHC74 and 4.5 V to 5.5 V for 74AHCT74 per the recommended operating conditions.

Key specifications

Parameter Value
Manufacturer Nexperia
Package TSSOP-14
Category Logic
Pins 14

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage VCC -0.5 7 V 4
Input voltage VI -0.5 7 V 4
Input clamping current IIK -20 mA VI < -0.5 V 4
Output clamping current IOK -20 20 mA VO < -0.5 V or VO > VCC + 0.5 V 4
Output current IO -25 25 mA VO = -0.5 V to (VCC + 0.5 V) 4
Supply current ICC 75 mA 4
Ground current IGND -75 mA 4
Storage temperature Tstg -65 150 °C 4
Total power dissipation Ptot 500 mW Tamb = -40 °C to +125 °C 4
Supply voltage VCC 4.5 5 5.5 V 4
Input voltage VI 0 5.5 V 4
Output voltage VO 0 V 4
Ambient temperature Tamb -40 25 125 °C 4
Input transition rise and fall rate Δt/ΔV 20 ns/V VCC = 4.5 V to 5.5 V 4
HIGH-level input voltage VIH 2 V VCC = 4.5 V to 5.5 V 5
LOW-level input voltage VIL 0.8 V VCC = 4.5 V to 5.5 V 5
HIGH-level output voltage VOH 4.4 4.5 V VI = VIH or VIL; VCC = 4.5 V; IO = -50 μA 5
HIGH-level output voltage VOH 4.4 V -40 °C to +125 °C; VI = VIH or VIL; VCC = 4.5 V; IO = -50 μA 5
HIGH-level output voltage VOH 3.94 V VI = VIH or VIL; VCC = 4.5 V; IO = -8.0 mA 5
HIGH-level output voltage VOH 3.7 V -40 °C to +125 °C; VI = VIH or VIL; VCC = 4.5 V; IO = -8.0 mA 5
LOW-level output voltage VOL 0 0.1 V VI = VIH or VIL; VCC = 4.5 V; IO = 50 μA 5
LOW-level output voltage VOL 0.1 V -40 °C to +125 °C; VI = VIH or VIL; VCC = 4.5 V; IO = 50 μA 5
LOW-level output voltage VOL 0.36 V VI = VIH or VIL; VCC = 4.5 V; IO = 8.0 mA 5
LOW-level output voltage VOL 0.55 V -40 °C to +125 °C; VI = VIH or VIL; VCC = 4.5 V; IO = 8.0 mA 5
Input leakage current II 0.1 μA VI = 5.5 V or GND; VCC = 0 V to 5.5 V 5
Input leakage current II 2 μA -40 °C to +125 °C; VI = 5.5 V or GND; VCC = 0 V to 5.5 V 5
Supply current ICC 2 μA VI = VCC or GND; IO = 0 A; VCC = 5.5 V 5
Supply current ICC 40 μA -40 °C to +125 °C; VI = VCC or GND; IO = 0 A; VCC = 5.5 V 5
Additional supply current ΔICC 1.35 mA per input pin; VI = VCC - 2.1 V; other pins at VCC or GND; IO = 0 A; VCC = 4.5 V to 5.5 V 6
Input capacitance CI 3 10 pF VI = VCC or GND 6
Propagation delay nCP to nQ, nQ tpd 3.3 7.8 ns VCC = 4.5 V to 5.5 V; CL = 15 pF; see Fig. 5 7
Propagation delay nCP to nQ, nQ tpd 1 10 ns -40 °C to +125 °C; VCC = 4.5 V to 5.5 V; CL = 15 pF; see Fig. 5 7
Propagation delay nCP to nQ, nQ tpd 4.8 8.8 ns VCC = 4.5 V to 5.5 V; CL = 50 pF; see Fig. 5 7
Propagation delay nCP to nQ, nQ tpd 1 11 ns -40 °C to +125 °C; VCC = 4.5 V to 5.5 V; CL = 50 pF; see Fig. 5 7
Propagation delay nSD, nRD to nQ, nQ tpd 3.7 10.4 ns VCC = 4.5 V to 5.5 V; CL = 15 pF; see Fig. 5 7
Propagation delay nSD, nRD to nQ, nQ tpd 1 13 ns -40 °C to +125 °C; VCC = 4.5 V to 5.5 V; CL = 15 pF; see Fig. 5 7
Propagation delay nSD, nRD to nQ, nQ tpd 5.3 11.4 ns VCC = 4.5 V to 5.5 V; CL = 50 pF; see Fig. 5 7
Propagation delay nSD, nRD to nQ, nQ tpd 1 14.5 ns -40 °C to +125 °C; VCC = 4.5 V to 5.5 V; CL = 50 pF; see Fig. 5 7
Maximum frequency fmax 100 160 MHz VCC = 4.5 V to 5.5 V; CL = 15 pF; see Fig. 5 7
Maximum frequency fmax 80 MHz -40 °C to +125 °C; VCC = 4.5 V to 5.5 V; CL = 15 pF; see Fig. 5 7
Maximum frequency fmax 80 140 MHz VCC = 4.5 V to 5.5 V; CL = 50 pF; see Fig. 5 7
Maximum frequency fmax 65 MHz -40 °C to +125 °C; VCC = 4.5 V to 5.5 V; CL = 50 pF; see Fig. 5 7
Pulse width tW 5 ns CP HIGH or LOW; nSD, nRD LOW; VCC = 4.5 V to 5.5 V; see Fig. 5 and Fig. 6 7
Set-up time tsu 5 ns nD to nCP; VCC = 4.5 V to 5.5 V; see Fig. 5 7
Hold time th 0 ns nD to nCP; VCC = 4.5 V to 5.5 V; see Fig. 5 7
Recovery time trec 3.5 ns nRD to nCP; VCC = 4.5 V to 5.5 V; see Fig. 6 7
Power dissipation capacitance CPD 16 pF fi = 1 MHz; VI = GND to VCC 7

CAD (KiCad official)

  • Symbol: 74AHCT74PW
  • Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
  • 3D model: TSSOP-14 (KiCad packages3D, STEP)
  • 3D model files: 74ahct74pw-etched.step / 74ahct74pw-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 74ahct74pw.step / 74ahct74pw.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Nexperia datasheet (15 pp, sha256 16494543b3aab84c, retrieved 2026-10-21, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus off (skipped (clean text read)), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF