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74HCT238PW

Public Made by Adom

by adom

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

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74HCT238PW

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

74HCT238PW from Nexperia, in a TSSOP-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 A0 input Address input A0 (least significant binary select input) with input voltage range 0 V to VCC.
2 A1 input Address input A1 with input voltage range 0 V to VCC.
3 A2 input Address input A2 with input voltage range 0 V to VCC.
4 E1 input Enable input E1, active LOW; all outputs stay LOW unless E1 and E2 are LOW and E3 is HIGH.
5 E2 input Enable input E2, active LOW; all outputs stay LOW unless E1 and E2 are LOW and E3 is HIGH.
6 E3 input Enable input E3, active HIGH; must be HIGH together with E1 and E2 LOW for the decoder to be enabled.
7 Y7 output Active HIGH mutually exclusive decoder output Y7 with output voltage range 0 V to VCC.
8 GND power_in Ground (0 V) reference pin; all voltages are referenced to this pin.
9 Y6 output Active HIGH mutually exclusive decoder output Y6 with output voltage range 0 V to VCC.
10 Y5 output Active HIGH mutually exclusive decoder output Y5 with output voltage range 0 V to VCC.
11 Y4 output Active HIGH mutually exclusive decoder output Y4 with output voltage range 0 V to VCC.
12 Y3 output Active HIGH mutually exclusive decoder output Y3 with output voltage range 0 V to VCC.
13 Y2 output Active HIGH mutually exclusive decoder output Y2 with output voltage range 0 V to VCC.
14 Y1 output Active HIGH mutually exclusive decoder output Y1 with output voltage range 0 V to VCC.
15 Y0 output Active HIGH mutually exclusive decoder output Y0 with output voltage range 0 V to VCC.
16 VCC power_in Supply voltage pin; 2.0 V to 6.0 V for 74HC238 and 4.5 V to 5.5 V for 74HCT238 per Table 5.

Key specifications

Parameter Value
Manufacturer Nexperia
Package TSSOP-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 4.5 5 5.5 V 5
Input voltage VI 0 V 5
Output voltage VO 0 V 5
Ambient temperature Tamb -40 125 °C 5
Input transition rise and fall rate Δt/ΔV 1.67 139 ns/V VCC = 4.5 V 5
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 -0.5 V < VO < 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 4
HIGH-level input voltage VIH 2 1.6 V VCC = 4.5 V to 5.5 V; 25 °C 6
HIGH-level input voltage VIH 2 V VCC = 4.5 V to 5.5 V; -40 °C to +125 °C 6
LOW-level input voltage VIL 1.2 0.8 V VCC = 4.5 V to 5.5 V; 25 °C 6
LOW-level input voltage VIL 0.8 V VCC = 4.5 V to 5.5 V; -40 °C to +125 °C 6
HIGH-level output voltage VOH 4.4 4.5 V VI = VIH or VIL; VCC = 4.5 V; IO = -20 μA; 25 °C 6
HIGH-level output voltage VOH 4.4 V VI = VIH or VIL; VCC = 4.5 V; IO = -20 μA; -40 °C to +125 °C 6
HIGH-level output voltage VOH 3.98 4.32 V VI = VIH or VIL; VCC = 4.5 V; IO = -4.0 mA; 25 °C 6
HIGH-level output voltage VOH 3.7 V VI = VIH or VIL; VCC = 4.5 V; IO = -4.0 mA; -40 °C to +125 °C 6
LOW-level output voltage VOL 0 0.1 V VI = VIH or VIL; VCC = 4.5 V; IO = 20 μA; 25 °C 6
LOW-level output voltage VOL 0.1 V VI = VIH or VIL; VCC = 4.5 V; IO = 20 μA; -40 °C to +125 °C 6
LOW-level output voltage VOL 0.16 0.26 V VI = VIH or VIL; VCC = 4.5 V; IO = 4.0 mA; 25 °C 6
LOW-level output voltage VOL 0.4 V VI = VIH or VIL; VCC = 4.5 V; IO = 4.0 mA; -40 °C to +125 °C 6
Input leakage current II -0.1 0.1 μA VI = VCC or GND; VCC = 5.5 V; 25 °C 6
Input leakage current II -1 1 μA VI = VCC or GND; VCC = 5.5 V; -40 °C to +125 °C 6
Supply current ICC 8 μA VI = VCC or GND; VCC = 5.5 V; IO = 0 A; 25 °C 6
Supply current ICC 160 μA VI = VCC or GND; VCC = 5.5 V; IO = 0 A; -40 °C to +125 °C 6
Additional supply current (An inputs) ΔICC 70 252 μA per input pin; VI = VCC - 2.1 V; IO = 0 A; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; 25 °C 6
Additional supply current (An inputs) ΔICC 343 μA per input pin; VI = VCC - 2.1 V; IO = 0 A; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; -40 °C to +125 °C 6
Additional supply current (E1, E2 inputs) ΔICC 40 144 μA per input pin; VI = VCC - 2.1 V; IO = 0 A; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; 25 °C 6
Additional supply current (E1, E2 inputs) ΔICC 196 μA per input pin; VI = VCC - 2.1 V; IO = 0 A; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; -40 °C to +125 °C 6
Additional supply current (E3 input) ΔICC 145 522 μA per input pin; VI = VCC - 2.1 V; IO = 0 A; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; 25 °C 6
Additional supply current (E3 input) ΔICC 711 μA per input pin; VI = VCC - 2.1 V; IO = 0 A; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; -40 °C to +125 °C 6
Propagation delay An to Yn tpd 19 35 ns VCC = 4.5 V; see Fig. 4; 25 °C 8
Propagation delay An to Yn tpd 53 ns VCC = 4.5 V; see Fig. 4; -40 °C to +125 °C 8
Propagation delay E3 to Yn tpd 20 37 ns VCC = 4.5 V; see Fig. 4; 25 °C 8
Propagation delay E3 to Yn tpd 56 ns VCC = 4.5 V; see Fig. 4; -40 °C to +125 °C 8
Propagation delay En to Yn tpd 20 35 ns VCC = 4.5 V; see Fig. 5; 25 °C 8
Propagation delay En to Yn tpd 53 ns VCC = 4.5 V; see Fig. 5; -40 °C to +125 °C 8
Transition time tt 7 15 ns VCC = 4.5 V; see Fig. 4 and Fig. 5; 25 °C 8
Transition time tt 22 ns VCC = 4.5 V; see Fig. 4 and Fig. 5; -40 °C to +125 °C 8
Input capacitance CI 3.5 pF 6
Power dissipation capacitance CPD 76 pF per package; VI = GND to VCC - 1.5 V 8

CAD (KiCad official)

  • Symbol: 74HCT238PW
  • Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
  • 3D model: TSSOP-16 (KiCad packages3D, STEP)
  • 3D model files: 74hct238pw-etched.step / 74hct238pw-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 74hct238pw.step / 74hct238pw.glb are the bare package body.

Provenance

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

  • Datasheet: Nexperia datasheet (15 pp, sha256 f0f9b99563a06c78, retrieved 2026-10-27, 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