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74AC11138DR

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

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74AC11138DR

Texas Instruments · Signal Switches, Multiplexers, Decoders · SOIC-16

74AC11138DR from Texas Instruments, 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 Y1 output Data output Y1 of the 3-to-8 decoder, active when selected by the A, B, C inputs and the enable inputs.
2 Y2 output Data output Y2 of the 3-to-8 decoder, active when selected by the A, B, C inputs and the enable inputs.
3 Y3 output Data output Y3 of the 3-to-8 decoder, active when selected by the A, B, C inputs and the enable inputs.
4 GND power_in Ground reference pin for the device.
5 Y4 output Data output Y4 of the 3-to-8 decoder, active when selected by the A, B, C inputs and the enable inputs.
6 Y5 output Data output Y5 of the 3-to-8 decoder, active when selected by the A, B, C inputs and the enable inputs.
7 Y6 output Data output Y6 of the 3-to-8 decoder, active when selected by the A, B, C inputs and the enable inputs.
8 Y7 output Data output Y7 of the 3-to-8 decoder, active when selected by the A, B, C inputs and the enable inputs.
9 G2B input Active-low input enable G2B; must be low together with G2A and G1 high to enable the outputs.
10 G2A input Active-low input enable G2A; must be low together with G2B and G1 high to enable the outputs.
11 G1 input Active-high input enable G1; must be high, with G2A and G2B low, to enable the outputs.
12 VCC power_in Supply pin; recommended supply range is 3 V to 5.5 V and the absolute maximum is 7 V (limits from Section 4 on page 4).
13 C input Binary select input C, the most significant select bit of the 3-to-8 decode.
14 B input Binary select input B, the middle select bit of the 3-to-8 decode.
15 A input Binary select input A, the least significant select bit of the 3-to-8 decode.
16 Y0 output Data output Y0 of the 3-to-8 decoder, active when selected by the A, B, C inputs and the enable inputs.

Key specifications

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

CAD (KiCad official)

  • Symbol: 74AC11138DR
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)
  • 3D model files: 74ac11138dr-etched.step / 74ac11138dr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 74ac11138dr.step / 74ac11138dr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (27 pp, sha256 1cc12b26f1f9c243, retrieved 2026-10-11, tier: manufacturer)
  • 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