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74AC11138DR
Public Made by Adomby adom
Texas Instruments Signal Switches, Multiplexers, Decoders, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdown74AC11138DR
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);74ac11138dr.step/74ac11138dr.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).