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74AHC123AD-Q100J

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Nexperia Monostable Multivibrators, SO-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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74AHC123AD-Q100J

Nexperia · Monostable Multivibrators · SO-16

74AHC123AD-Q100J from Nexperia, in a SO-16. 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 1A input Negative-edge triggered input 1; the inputs are overvoltage tolerant to 5.5 V.
2 1B input Positive-edge triggered input 1; the inputs are overvoltage tolerant to 5.5 V.
3 1RD input Direct reset LOW and positive-edge triggered input 1; a LOW level on this input terminates the output pulse.
4 1Q output Active LOW output 1 (complement of 1Q at pin 13); the overbar is not present in the extracted text.
5 2Q output Active HIGH output 2.
6 2CEXT passive External capacitor connection 2; for minimum noise generation the datasheet recommends grounding this pin externally to GND (pin 8).
7 2REXT/CEXT passive External resistor and capacitor connection 2; REXT must be at least 5 kΩ at VCC = 2.0 V and at least 1 kΩ when VCC > 3.0 V.
8 GND power_in Ground (0 V).
9 2A input Negative-edge triggered input 2; the inputs are overvoltage tolerant to 5.5 V.
10 2B input Positive-edge triggered input 2; the inputs are overvoltage tolerant to 5.5 V.
11 2RD input Direct reset LOW and positive-edge triggered input 2; a LOW level on this input terminates the output pulse.
12 2Q output Active LOW output 2 (complement of 2Q at pin 5); the overbar is not present in the extracted text.
13 1Q output Active HIGH output 1.
14 1CEXT passive External capacitor connection 1; for minimum noise generation the datasheet recommends grounding this pin externally to GND (pin 8).
15 1REXT/CEXT passive External resistor and capacitor connection 1; REXT must be at least 5 kΩ at VCC = 2.0 V and at least 1 kΩ when VCC > 3.0 V.
16 VCC power_in Supply voltage: 2.0 V to 5.5 V for the 74AHC123A-Q100 variant (this MPN, which is CMOS input level).

Key specifications

Parameter Value
Manufacturer Nexperia
Package SO-16
Category Logic ICs
Pins 16

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 (absolute maximum) VCC -0.5 7 V 7
Input voltage (absolute maximum) VI -0.5 7 V 7
Input clamping current IIK -20 mA VI < -0.5 V 7
Output clamping current IOK -20 20 mA VO < -0.5 V or VO > VCC + 0.5 V 7
Output current IO -25 25 mA VO = -0.5 V to (VCC + 0.5 V) 7
Supply current ICC 75 mA 7
Ground current IGND -75 mA 7
Storage temperature Tstg -65 150 °C 7
Total power dissipation Ptot 500 mW Tamb = -40 °C to +125 °C; SO16 derates linearly 12.4 mW/K above 110 °C 7
Supply voltage (recommended) VCC 2 5 5.5 V 74AHC123A-Q100 column 7
Input voltage (recommended) VI 0 5.5 V 74AHC123A-Q100 column 7
Output voltage (recommended) VO 0 V 74AHC123A-Q100 column; max printed as VCC 7
Ambient temperature Tamb -40 25 125 °C 74AHC123A-Q100 column 7
Input transition rise and fall rate Δt/ΔV 100 ns/V VCC = 3.3 V ± 0.3 V 7
Input transition rise and fall rate Δt/ΔV 20 ns/V VCC = 5.0 V ± 0.5 V 7
External resistance REXT REXT 5 kΩ VCC = 2.0 V 12
External resistance REXT REXT 1 kΩ VCC > 3.0 V 12
HIGH-level input voltage VIH 1.5 V VCC = 2.0 V; -40 °C to +125 °C 8
HIGH-level input voltage VIH 2.1 V VCC = 3.0 V; -40 °C to +125 °C 8
HIGH-level input voltage VIH 3.85 V VCC = 5.5 V; -40 °C to +125 °C 8
LOW-level input voltage VIL 0.5 V VCC = 2.0 V; -40 °C to +125 °C 8
LOW-level input voltage VIL 0.9 V VCC = 3.0 V; -40 °C to +125 °C 8
LOW-level input voltage VIL 1.65 V VCC = 5.5 V; -40 °C to +125 °C 8
HIGH-level output voltage VOH 1.9 2 V VI = VIH or VIL; IO = -50 μA; VCC = 2.0 V; -40 °C to +125 °C 8
HIGH-level output voltage VOH 2.9 3 V VI = VIH or VIL; IO = -50 μA; VCC = 3.0 V; -40 °C to +125 °C 8
HIGH-level output voltage VOH 4.4 4.5 V VI = VIH or VIL; IO = -50 μA; VCC = 4.5 V; -40 °C to +125 °C 8
HIGH-level output voltage VOH 2.4 V VI = VIH or VIL; IO = -4.0 mA; VCC = 3.0 V; -40 °C to +125 °C 8
HIGH-level output voltage VOH 3.7 V VI = VIH or VIL; IO = -8.0 mA; VCC = 4.5 V; -40 °C to +125 °C 8
LOW-level output voltage VOL 0 0.1 V VI = VIH or VIL; IO = 50 μA; VCC = 2.0 V; -40 °C to +125 °C 8
LOW-level output voltage VOL 0.55 V VI = VIH or VIL; IO = 4.0 mA; VCC = 3.0 V; -40 °C to +125 °C 8
Input leakage current II -10 10 μA nREXT/CEXT; VI = 5.5 V or GND; VCC = 0 V to 5.5 V; -40 °C to +125 °C 8
Input leakage current II -2 2 μA pins nA, nB, nRD; -40 °C to +125 °C 8
Quiescent supply current ICC 80 μA VI = VCC or GND; IO = 0 A; VCC = 5.5 V; -40 °C to +125 °C 8
Active-state supply current (per circuit) ICC 160 280 μA active state (per circuit); VI = VCC or GND; VCC = 3.0 V; typ 25 °C, max -40 °C to +125 °C 8
Active-state supply current (per circuit) ICC 380 650 μA active state (per circuit); VI = VCC or GND; VCC = 4.5 V; typ 25 °C, max -40 °C to +125 °C 8
Active-state supply current (per circuit) ICC 560 975 μA active state (per circuit); VI = VCC or GND; VCC = 5.5 V; typ 25 °C, max -40 °C to +125 °C 8
Input capacitance CI 5 10 pF 8
Propagation delay nA/nB to nQ, nQ tpd 1 7.4 26 ns VCC = 3.0 V to 3.6 V; CL = 15 pF; -40 °C to +125 °C 10
Propagation delay nA/nB to nQ, nQ tpd 1 10.5 30 ns VCC = 3.0 V to 3.6 V; CL = 50 pF; -40 °C to +125 °C 10
Propagation delay nA/nB to nQ, nQ tpd 1 5.1 15.5 ns VCC = 4.5 V to 5.5 V; CL = 15 pF; -40 °C to +125 °C 10
Propagation delay nA/nB to nQ, nQ tpd 1 7.3 17.5 ns VCC = 4.5 V to 5.5 V; CL = 50 pF; -40 °C to +125 °C 10
Propagation delay nRD to nQ, nQ tpd 1 8.2 28 ns VCC = 3.0 V to 3.6 V; CL = 15 pF; -40 °C to +125 °C 10
Propagation delay nRD to nQ, nQ tpd 1 11.7 32 ns VCC = 3.0 V to 3.6 V; CL = 50 pF; -40 °C to +125 °C 10
Propagation delay nRD to nQ, nQ tpd 1 5.6 16.5 ns VCC = 4.5 V to 5.5 V; CL = 15 pF; -40 °C to +125 °C 10
Propagation delay nRD to nQ, nQ tpd 1 8.1 19 ns VCC = 4.5 V to 5.5 V; CL = 50 pF; -40 °C to +125 °C 10
Propagation delay nRD to nQ, nQ (reset) tpd 1 6.4 20 ns VCC = 3.0 V to 3.6 V; CL = 15 pF; -40 °C to +125 °C 10
Propagation delay nRD to nQ, nQ (reset) tpd 1 9.2 24.5 ns VCC = 3.0 V to 3.6 V; CL = 50 pF; -40 °C to +125 °C 10
Propagation delay nRD to nQ, nQ (reset) tpd 1 4.4 12 ns VCC = 4.5 V to 5.5 V; CL = 15 pF; -40 °C to +125 °C 10
Propagation delay nRD to nQ, nQ (reset) tpd 1 6.3 14.5 ns VCC = 4.5 V to 5.5 V; CL = 50 pF; -40 °C to +125 °C 10
Minimum input pulse (nA = LOW) 5 ns inputs; nA = LOW; see Fig. 5; VCC = 4.5 V to 5.5 V; -40 °C to +125 °C 10
Minimum input pulse (nB = HIGH) 5 ns inputs; nB = HIGH; see Fig. 5; VCC = 4.5 V to 5.5 V; -40 °C to +125 °C 10
Minimum input pulse (nRD = LOW) 5 ns inputs; nRD = LOW; see Fig. 5; VCC = 4.5 V to 5.5 V; -40 °C to +125 °C 10
Pulse width tW tW 85 100 115 μs outputs nQ = LOW and nQ = HIGH; CL = 50 pF; CEXT = 0.01 μF; REXT = 10 kΩ; VCC = 3.0 V to 3.6 V; -40 °C to +125 °C 10
Pulse width tW tW 0.85 1 1.15 ms outputs nQ = LOW and nQ = HIGH; CL = 50 pF; CEXT = 0.1 μF; REXT = 10 kΩ; VCC = 3.0 V to 3.6 V; -40 °C to +125 °C 10

CAD (KiCad official)

  • Symbol: 74AHC123AD-Q100J
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SO-16 (KiCad packages3D, STEP)
  • 3D model files: 74ahc123ad-q100j-etched.step / 74ahc123ad-q100j-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 74ahc123ad-q100j.step / 74ahc123ad-q100j.glb are the bare package body.

Provenance

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

  • Datasheet: Nexperia datasheet (21 pp, sha256 aba0f1e26c4e70db, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), 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