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CD74HC238E

Public Made by Adom

by adom

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

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CD74HC238E

lingxingic · Signal Switches, Multiplexers, Decoders · DIP-16

CD74HC238E from lingxingic, in a DIP-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 Binary-weighted address input A0; together with A1 and A2 it selects which one of the eight outputs Y0 to Y7 goes HIGH.
2 A1 input Binary-weighted address input A1; together with A0 and A2 it selects which one of the eight outputs Y0 to Y7 goes HIGH.
3 A2 input Binary-weighted address input A2; together with A0 and A1 it selects which one of the eight outputs Y0 to Y7 goes HIGH.
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 Y7, active HIGH; mutually exclusive with the other outputs and LOW unless its address is selected and the enables are active.
8 GND power_in Ground (0V) reference for all voltages on the device.
9 Y6 output Decoder output Y6, active HIGH; mutually exclusive with the other outputs and LOW unless its address is selected and the enables are active.
10 Y5 output Decoder output Y5, active HIGH; mutually exclusive with the other outputs and LOW unless its address is selected and the enables are active.
11 Y4 output Decoder output Y4, active HIGH; mutually exclusive with the other outputs and LOW unless its address is selected and the enables are active.
12 Y3 output Decoder output Y3, active HIGH; mutually exclusive with the other outputs and LOW unless its address is selected and the enables are active.
13 Y2 output Decoder output Y2, active HIGH; mutually exclusive with the other outputs and LOW unless its address is selected and the enables are active.
14 Y1 output Decoder output Y1, active HIGH; mutually exclusive with the other outputs and LOW unless its address is selected and the enables are active.
15 Y0 output Decoder output Y0, active HIGH; mutually exclusive with the other outputs and LOW unless its address is selected and the enables are active.
16 VCC power_in Supply voltage; recommended range 2.0 V to 6.0 V for CD74HC238 and 4.5 V to 5.5 V for CD74HCT238 (absolute maximum 7.0 V).

Key specifications

Parameter Value
Manufacturer lingxingic
Package DIP-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 8
input clamping current IIK -20 20 mA VI < -0.5V or VI > VCC+0.5V 8
output clamping current IOK -20 20 mA VO < -0.5V or VO > VCC+0.5V 8
output current IO -25 25 mA -0.5V < VO < VCC+0.5V 8
supply current ICC 50 mA 8
ground current IGND -50 mA 8
storage temperature Tstg -65 150 ℃ 8
total power dissipation Ptot 500 mW 8
soldering temperature TL 245 ℃ 10s, DIP 8
supply voltage (recommended) VCC 2 5 6 V 8
input voltage VI 0 V 8
output voltage VO 0 V 8
input transition rise and fall rate Δt/ΔV 625 ns/V VCC=2.0V 8
input transition rise and fall rate Δt/ΔV 1.67 139 ns/V VCC=4.5V 8
input transition rise and fall rate Δt/ΔV 83 ns/V VCC=6.0V 8
ambient temperature Tamb -40 125 ℃ 8
HIGH-level input voltage VIH 1.5 V VCC=2.0V; Tamb=-40℃ to +125℃ 11
HIGH-level input voltage VIH 3.15 V VCC=4.5V; Tamb=-40℃ to +125℃ 11
HIGH-level input voltage VIH 4.2 V VCC=6.0V; Tamb=-40℃ to +125℃ 11
LOW-level input voltage VIL 0.5 V VCC=2.0V; Tamb=-40℃ to +125℃ 11
LOW-level input voltage VIL 1.35 V VCC=4.5V; Tamb=-40℃ to +125℃ 11
LOW-level input voltage VIL 1.8 V VCC=6.0V; Tamb=-40℃ to +125℃ 11
HIGH-level output voltage VOH 1.9 V IO=-20uA; VCC=2.0V; VI = VIH or VIL; Tamb=-40℃ to +125℃ 11
HIGH-level output voltage VOH 4.4 V IO=-20uA; VCC=4.5V; VI = VIH or VIL; Tamb=-40℃ to +125℃ 11
HIGH-level output voltage VOH 5.9 V IO=-20uA; VCC=6.0V; VI = VIH or VIL; Tamb=-40℃ to +125℃ 11
HIGH-level output voltage VOH 3.7 V IO=-4.0mA; VCC=4.5V; VI = VIH or VIL; Tamb=-40℃ to +125℃ 11
HIGH-level output voltage VOH 5.2 V IO=-5.2mA; VCC=6.0V; VI = VIH or VIL; Tamb=-40℃ to +125℃ 11
LOW-level output voltage VOL 0.1 V IO=20uA; VCC=2.0V; VI = VIH or VIL; Tamb=-40℃ to +125℃ 11
LOW-level output voltage VOL 0.4 V IO=4.0mA; VCC=4.5V; VI = VIH or VIL; Tamb=-40℃ to +125℃ 11
input leakage current II -1 1 uA VI=VCC or GND; VCC=6.0V; Tamb=-40℃ to +125℃ 11
supply current ICC 160 uA VI=VCC or GND; IO=0A; VCC=6.0V; Tamb=-40℃ to +125℃ 11
propagation delay An to Yn tpd 225 ns An to Yn; see Figure 5; VCC=2.0V; Tamb=-40℃ to +125℃ 14
propagation delay An to Yn tpd 45 ns An to Yn; see Figure 5; VCC=4.5V; Tamb=-40℃ to +125℃ 14
propagation delay An to Yn tpd 38 ns An to Yn; see Figure 5; VCC=6.0V; Tamb=-40℃ to +125℃ 14
propagation delay E3 to Yn tpd 240 ns E3 to Yn; see Figure 5; VCC=2.0V; Tamb=-40℃ to +125℃ 14
propagation delay E3 to Yn tpd 48 ns E3 to Yn; see Figure 5; VCC=4.5V; Tamb=-40℃ to +125℃ 14
propagation delay E3 to Yn tpd 41 ns E3 to Yn; see Figure 5; VCC=6.0V; Tamb=-40℃ to +125℃ 14
propagation delay En to Yn tpd 235 ns En to Yn; see Figure 6; VCC=2.0V; Tamb=-40℃ to +125℃ 14
propagation delay En to Yn tpd 47 ns En to Yn; see Figure 6; VCC=4.5V; Tamb=-40℃ to +125℃ 14
propagation delay En to Yn tpd 40 ns En to Yn; see Figure 6; VCC=6.0V; Tamb=-40℃ to +125℃ 14
transition time tt 110 ns see Figure 5, 6; VCC=2.0V; Tamb=-40℃ to +125℃ 14
transition time tt 22 ns see Figure 5, 6; VCC=4.5V; Tamb=-40℃ to +125℃ 14
transition time tt 19 ns see Figure 5, 6; VCC=6.0V; Tamb=-40℃ to +125℃ 14
propagation delay An to Yn tpd 47 150 ns An to Yn; see Figure 5; VCC=2.0V; Tamb=25℃ 12
propagation delay An to Yn tpd 17 30 ns An to Yn; see Figure 5; VCC=4.5V; Tamb=25℃ 12
propagation delay An to Yn tpd 14 26 ns An to Yn; see Figure 5; VCC=6.0V; Tamb=25℃ 12
propagation delay E3 to Yn tpd 52 160 ns E3 to Yn; see Figure 5; VCC=2.0V; Tamb=25℃ 12
propagation delay E3 to Yn tpd 19 32 ns E3 to Yn; see Figure 5; VCC=4.5V; Tamb=25℃ 12
propagation delay E3 to Yn tpd 15 27 ns E3 to Yn; see Figure 5; VCC=6.0V; Tamb=25℃ 12
propagation delay En to Yn tpd 50 155 ns En to Yn; see Figure 6; VCC=2.0V; Tamb=25℃ 12
propagation delay En to Yn tpd 18 31 ns En to Yn; see Figure 6; VCC=4.5V; Tamb=25℃ 12
propagation delay En to Yn tpd 14 26 ns En to Yn; see Figure 6; VCC=6.0V; Tamb=25℃ 12
transition time tt 19 75 ns see Figure 5, 6; VCC=2.0V; Tamb=25℃ 12
transition time tt 7 15 ns see Figure 5, 6; VCC=4.5V; Tamb=25℃ 12
transition time tt 6 13 ns see Figure 5, 6; VCC=6.0V; Tamb=25℃ 12
input leakage current II -1 1 uA VI=VCC or GND; VCC=6.0V; Tamb=25℃ 9
supply current ICC 8 uA VI=VCC or GND; IO=0A; VCC=6.0V; Tamb=25℃ 9

CAD (KiCad official)

  • Symbol: CD74HC238E
  • Footprint: Package_DIP:DIP-16_W7.62mm
  • 3D model: DIP-16 (KiCad packages3D, STEP)
  • 3D model files: cd74hc238e-etched.step / cd74hc238e-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cd74hc238e.step / cd74hc238e.glb are the bare package body.

Provenance

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

  • Datasheet: lingxingic datasheet (20 pp, sha256 bd52e6090cfa20fc, retrieved 2026-10-14, 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