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74HCT157D

Public Made by Adom

by adom

Nexperia Signal Switches, Multiplexers, Decoders, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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74HCT157D

Nexperia · Signal Switches, Multiplexers, Decoders · SOIC-16

74HCT157D from Nexperia, in a SOIC-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 S input Common data select input: a HIGH selects data source 1 and a LOW selects data source 0.
2 1I0 input Data input 1I0 from source 0 for multiplexer 1.
3 1I1 input Data input 1I1 from source 1 for multiplexer 1.
4 1Y output Multiplexer 1 output; forced LOW when E is HIGH.
5 2I0 input Data input 2I0 from source 0 for multiplexer 2.
6 2I1 input Data input 2I1 from source 1 for multiplexer 2.
7 2Y output Multiplexer 2 output; forced LOW when E is HIGH.
8 GND power_in Ground (0 V) reference for all voltages.
9 3Y output Multiplexer 3 output; forced LOW when E is HIGH.
10 3I1 input Data input 3I1 from source 1 for multiplexer 3.
11 3I0 input Data input 3I0 from source 0 for multiplexer 3.
12 4Y output Multiplexer 4 output; forced LOW when E is HIGH.
13 4I1 input Data input 4I1 from source 1 for multiplexer 4.
14 4I0 input Data input 4I0 from source 0 for multiplexer 4.
15 E input Enable input, active LOW; a HIGH forces all outputs (1Y to 4Y) LOW.
16 VCC power_in Supply voltage, 2.0 V to 6.0 V for the 74HC157/74HCT157 family.

Key specifications

Parameter Value
Manufacturer Nexperia
Package SOIC-16
Category Logic
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 VCC -0.5 7 V 4
input clamping current IIK -20 20 mA VI < -0.5 V or VI > VCC + 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 50 mA 4
ground current IGND -50 mA 4
storage temperature Tstg -65 150 °C 4
total power dissipation Ptot 500 mW Tamb = -40 °C to +125 °C 4
supply voltage (74HCT157) VCC 4.5 5 5.5 V 4
input voltage (74HCT157) VI 0 V 4
output voltage (74HCT157) VO 0 V 4
ambient temperature (74HCT157) Tamb -40 25 125 °C 4
input transition rise and fall rate (74HCT157) Δt/ΔV 1.67 139 ns/V VCC = 4.5 V 4
HIGH-level input voltage (74HCT157) VIH 2 1.6 V VCC = 4.5 V to 5.5 V; typ at Tamb = 25 °C, min at -40 °C to +125 °C 6
LOW-level input voltage (74HCT157) VIL 1.2 0.8 V VCC = 4.5 V to 5.5 V; typ at Tamb = 25 °C, max at -40 °C to +125 °C 6
HIGH-level output voltage (74HCT157) VOH 4.4 4.5 V VI = VIH or VIL; VCC = 4.5 V; IO = -20 μA; typ at Tamb = 25 °C, min at -40 °C to +125 °C 6
HIGH-level output voltage (74HCT157) VOH 3.7 4.32 V VI = VIH or VIL; VCC = 4.5 V; IO = -4 mA; typ at Tamb = 25 °C, min at -40 °C to +125 °C 6
LOW-level output voltage (74HCT157) VOL 0 0.1 V VI = VIH or VIL; VCC = 4.5 V; IO = 20 μA; typ at Tamb = 25 °C, max at -40 °C to +125 °C 6
LOW-level output voltage (74HCT157) VOL 0.15 0.4 V VI = VIH or VIL; VCC = 4.5 V; IO = 4.0 mA; typ at Tamb = 25 °C, max at -40 °C to +125 °C 6
input leakage current (74HCT157) II -1 1 μA VI = VCC or GND; VCC = 5.5 V; min/max at -40 °C to +125 °C 6
supply current (74HCT157) ICC 160 μA VI = VCC or GND; IO = 0 A; VCC = 5.5 V; max at -40 °C to +125 °C 6
additional supply current per input pin, nI0 and nI1 inputs (74HCT157) ΔICC 100 490 μA VI = VCC - 2.1 V; IO = 0 A; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; per input pin; nI0, nI1 inputs; typ at Tamb = 25 °C, max at -40 °C to +125 °C 6
additional supply current per input pin, E input (74HCT157) ΔICC 60 294 μA VI = VCC - 2.1 V; IO = 0 A; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; per input pin; E input; typ at Tamb = 25 °C, max at -40 °C to +125 °C 6
additional supply current per input pin, S input (74HCT157) ΔICC 100 490 μA VI = VCC - 2.1 V; IO = 0 A; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; per input pin; S input; typ at Tamb = 25 °C, max at -40 °C to +125 °C 6
propagation delay nI0, nI1 to nY (74HCT157) tpd 16 41 ns VCC = 4.5 V; see Fig. 5; typ at Tamb = 25 °C, max at -40 °C to +125 °C 8
propagation delay S to nY (74HCT157) tpd 22 56 ns VCC = 4.5 V; see Fig. 5; typ at Tamb = 25 °C, max at -40 °C to +125 °C 8
propagation delay E to nY (74HCT157) tpd 15 39 ns VCC = 4.5 V; see Fig. 6; typ at Tamb = 25 °C, max at -40 °C to +125 °C 8
transition time nY (74HCT157) tt 7 22 ns VCC = 4.5 V; see Fig. 5; typ at Tamb = 25 °C, max at -40 °C to +125 °C 8
input capacitance (74HCT157) CI 3.5 pF 6

CAD (KiCad official)

  • Symbol: 74HCT157D
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)
  • 3D model files: 74hct157d-etched.step / 74hct157d-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 74hct157d.step / 74hct157d.glb are the bare package body.

Provenance

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

  • Datasheet: Nexperia datasheet (15 pp, sha256 74a09a3b77c06c22, retrieved 2026-10-20, 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