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74HC238M

Public Made by Adom

by adom

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

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74HC238M

HGSEMI · Signal Switches, Multiplexers, Decoders · SOP-16

74HC238M from HGSEMI, in a SOP-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 (binary weight 0) of the 3-to-8 decoder; inputs include clamp diodes and accept CMOS levels.
2 A1 input Address input (binary weight 1) of the 3-to-8 decoder; inputs include clamp diodes and accept CMOS levels.
3 A2 input Address input (binary weight 2) of the 3-to-8 decoder; inputs include clamp diodes and accept CMOS levels.
4 E1 input Enable input, active LOW; all outputs stay LOW unless E1 and E2 are LOW and E3 is HIGH.
5 E2 input Enable input, active LOW; all outputs stay LOW unless E1 and E2 are LOW and E3 is HIGH.
6 E3 input Enable input, active HIGH; all outputs stay LOW unless E1 and E2 are LOW and E3 is HIGH.
7 Y7 output Decoder output 7, active HIGH; one of the mutually exclusive outputs, absolute maximum output current ±25 mA.
8 GND power_in Ground (0 V) reference for all voltages on the device.
9 Y6 output Decoder output 6, active HIGH; one of the mutually exclusive outputs, absolute maximum output current ±25 mA.
10 Y5 output Decoder output 5, active HIGH; one of the mutually exclusive outputs, absolute maximum output current ±25 mA.
11 Y4 output Decoder output 4, active HIGH; one of the mutually exclusive outputs, absolute maximum output current ±25 mA.
12 Y3 output Decoder output 3, active HIGH; one of the mutually exclusive outputs, absolute maximum output current ±25 mA.
13 Y2 output Decoder output 2, active HIGH; one of the mutually exclusive outputs, absolute maximum output current ±25 mA.
14 Y1 output Decoder output 1, active HIGH; one of the mutually exclusive outputs, absolute maximum output current ±25 mA.
15 Y0 output Decoder output 0, active HIGH; one of the mutually exclusive outputs, absolute maximum output current ±25 mA.
16 VCC power_in Supply voltage; recommended operating range 2.0 V to 6.0 V, absolute maximum 7.0 V.

Key specifications

Parameter Value
Manufacturer HGSEMI
Package SOP-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 < -0.5V or VI > VCC+0.5V 4
output clamping current IOK -20 20 mA VO < -0.5V or VO > VCC+0.5V 4
output current IO -25 25 mA -0.5V < VO < VCC+0.5V 4
supply current ICC 50 mA 4
ground current IGND -50 mA 4
storage temperature Tstg -65 150 ℃ 4
total power dissipation Ptot 500 mW 4
soldering temperature TL 260 ℃ 10s 4
supply voltage VCC 2 5 6 V 4
input voltage VI 0 V 4
input transition rise and fall rate Δt/ΔV 625 ns/V VCC=2.0V 4
input transition rise and fall rate Δt/ΔV 1.67 139 ns/V VCC=4.5V 4
input transition rise and fall rate Δt/ΔV 83 ns/V VCC=6.0V 4
ambient temperature Tamb -40 105 ℃ 4
HIGH-level input voltage VIH 1.5 1.2 V Tamb=25℃; VCC=2.0V 5
HIGH-level input voltage VIH 3.15 2.4 V Tamb=25℃; VCC=4.5V 5
HIGH-level input voltage VIH 4.2 3.2 V Tamb=25℃; VCC=6.0V 5
LOW-level input voltage VIL 0.8 0.5 V Tamb=25℃; VCC=2.0V 5
LOW-level input voltage VIL 2.1 1.35 V Tamb=25℃; VCC=4.5V 5
LOW-level input voltage VIL 2.8 1.8 V Tamb=25℃; VCC=6.0V 5
HIGH-level output voltage VOH 1.9 2 V Tamb=25℃; VI = VIH or VIL; IO=-20uA; VCC=2.0V 5
HIGH-level output voltage VOH 4.4 4.5 V Tamb=25℃; VI = VIH or VIL; IO=-20uA; VCC=4.5V 5
HIGH-level output voltage VOH 5.9 6 V Tamb=25℃; VI = VIH or VIL; IO=-20uA; VCC=6.0V 5
HIGH-level output voltage VOH 3.98 4.32 V Tamb=25℃; VI = VIH or VIL; IO=-4.0mA; VCC=4.5V 5
HIGH-level output voltage VOH 5.48 5.81 V Tamb=25℃; VI = VIH or VIL; IO=-5.2mA; VCC=6.0V 5
LOW-level output voltage VOL 0.15 0.26 V Tamb=25℃; VI = VIH or VIL; IO=4.0mA; VCC=4.5V 5
LOW-level output voltage VOL 0.16 0.26 V Tamb=25℃; VI = VIH or VIL; IO=5.2mA; VCC=6.0V 5
input leakage current II -0.1 0.1 uA Tamb=25℃; VI=VCC or GND; VCC=6.0V 5
supply current ICC 8 uA Tamb=25℃; VI=VCC or GND; IO=0A; VCC=6.0V 5
HIGH-level input voltage VIH 1.5 V Tamb=-40 to +105℃; VCC=2.0V 6
HIGH-level input voltage VIH 3.15 V Tamb=-40 to +105℃; VCC=4.5V 6
HIGH-level input voltage VIH 4.2 V Tamb=-40 to +105℃; VCC=6.0V 6
LOW-level input voltage VIL 0.5 V Tamb=-40 to +105℃; VCC=2.0V 6
LOW-level input voltage VIL 1.35 V Tamb=-40 to +105℃; VCC=4.5V 6
LOW-level input voltage VIL 1.8 V Tamb=-40 to +105℃; VCC=6.0V 6
HIGH-level output voltage VOH 1.9 V Tamb=-40 to +105℃; VI = VIH or VIL; IO=-20uA; VCC=2.0V 6
HIGH-level output voltage VOH 4.4 V Tamb=-40 to +105℃; VI = VIH or VIL; IO=-20uA; VCC=4.5V 6
HIGH-level output voltage VOH 5.9 V Tamb=-40 to +105℃; VI = VIH or VIL; IO=-20uA; VCC=6.0V 6
HIGH-level output voltage VOH 3.7 V Tamb=-40 to +105℃; VI = VIH or VIL; IO=-4.0mA; VCC=4.5V 6
HIGH-level output voltage VOH 5.2 V Tamb=-40 to +105℃; VI = VIH or VIL; IO=-5.2mA; VCC=6.0V 6
LOW-level output voltage VOL 0.1 V Tamb=-40 to +105℃; VI = VIH or VIL; IO=20uA; VCC=2.0V 6
LOW-level output voltage VOL 0.4 V Tamb=-40 to +105℃; VI = VIH or VIL; IO=4.0mA; VCC=4.5V 6
input leakage current II -1 1 uA Tamb=-40 to +105℃; VI=VCC or GND; VCC=6.0V 6
supply current ICC 160 uA Tamb=-40 to +105℃; VI=VCC or GND; IO=0A; VCC=6.0V 6
propagation delay An to Yn tpd 225 ns Tamb=-40 to +105℃; An to Yn; see Figure 5; VCC=2.0V 8
propagation delay An to Yn tpd 45 ns Tamb=-40 to +105℃; An to Yn; see Figure 5; VCC=4.5V 8
propagation delay An to Yn tpd 38 ns Tamb=-40 to +105℃; An to Yn; see Figure 5; VCC=6.0V 8
propagation delay E3 to Yn tpd 240 ns Tamb=-40 to +105℃; E3 to Yn; see Figure 5; VCC=2.0V 8
propagation delay E3 to Yn tpd 48 ns Tamb=-40 to +105℃; E3 to Yn; see Figure 5; VCC=4.5V 8
propagation delay E3 to Yn tpd 41 ns Tamb=-40 to +105℃; E3 to Yn; see Figure 5; VCC=6.0V 8
propagation delay En to Yn tpd 235 ns Tamb=-40 to +105℃; En to Yn; see Figure 6; VCC=2.0V 8
propagation delay En to Yn tpd 47 ns Tamb=-40 to +105℃; En to Yn; see Figure 6; VCC=4.5V 8
propagation delay En to Yn tpd 40 ns Tamb=-40 to +105℃; En to Yn; see Figure 6; VCC=6.0V 8
transition time tt 110 ns Tamb=-40 to +105℃; see Figure 5, 6; VCC=2.0V 8
transition time tt 22 ns Tamb=-40 to +105℃; see Figure 5, 6; VCC=4.5V 8
transition time tt 19 ns Tamb=-40 to +105℃; see Figure 5, 6; VCC=6.0V 8

CAD (KiCad official)

  • Symbol: 74HC238M
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOP-16 (KiCad packages3D, STEP)
  • 3D model files: 74hc238m-etched.step / 74hc238m-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 74hc238m.step / 74hc238m.glb are the bare package body.

Provenance

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

  • Datasheet: HGSEMI datasheet (14 pp, sha256 daf0c6455e77887d, retrieved 2026-10-18, 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