Symbol & Footprint

Schematic Symbol

Open full view ↗

PCB Footprint

Open full view ↗
Contents

README

markdown

CD74HCT238M96

Texas Instruments · Signal Switches / Encoders & Decoders / Multiplexers · SOP-16

CD74HCT238M96 from Texas Instruments, in a SOP-16. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 A0 input Address select input, least significant bit. TTL-compatible input selects one of eight outputs together with A1 and A2.
2 A1 input Address select input, middle bit. TTL-compatible input contributing to output selection.
3 A2 input Address select input, most significant bit. TTL-compatible input contributing to output selection.
4 E1 input Active-low enable input. Must be low along with E2 low and E3 high to enable decoder outputs; otherwise all outputs are low.
5 E2 input Active-low enable input. Must be low along with E1 low and E3 high to enable decoder outputs.
6 E3 input Active-high enable input. Must be high along with E1 and E2 low to enable decoder outputs.
7 Y7 output Decoded active-high output 7. Asserts high when A2:A0 = 111 and the device is enabled; otherwise low.
8 GND power_in Ground reference (0 V) for the device.
9 Y6 output Decoded active-high output 6. Asserts high when A2:A0 = 110 and the device is enabled.
10 Y5 output Decoded active-high output 5. Asserts high when A2:A0 = 101 and the device is enabled.
11 Y4 output Decoded active-high output 4. Asserts high when A2:A0 = 100 and the device is enabled.
12 Y3 output Decoded active-high output 3. Asserts high when A2:A0 = 011 and the device is enabled.
13 Y2 output Decoded active-high output 2. Asserts high when A2:A0 = 010 and the device is enabled.
14 Y1 output Decoded active-high output 1. Asserts high when A2:A0 = 001 and the device is enabled.
15 Y0 output Decoded active-high output 0. Asserts high when A2:A0 = 000 and the device is enabled.
16 VCC power_in Positive supply voltage input. Operating range 4.5 V to 5.5 V for HCT logic family.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOP-16
Category Logic
Pins 16

Ordering variants

Same part, different packaging or reel option.

  • CD74HCT238M96
  • CD74HCT238M96M
  • CD74HCT238M96MT
  • CD74HCT238M96E
  • CD74HCT238M96EE4
  • CD74HCT238M96PW
  • CD74HCT238M96PWR

CAD (KiCad official)

  • Symbol: CD74HCT238M96
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOP-16 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
cd74hct238m96.step 217 KB You want the bare part, or you mark your own boards.
cd74hct238m96-etched.step 3.1 MB You want the part with CD74HCT238M96 already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 752 faces against 267 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: Texas Instruments datasheet (20 pp, sha256 12903ef9d08d198b, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF