component
MC74LCX157DTR2G
Public Made by Adomby adom
onsemi Signal Switches, Multiplexers, Decoders, TSSOP-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
markdownMC74LCX157DTR2G
onsemi · Signal Switches, Multiplexers, Decoders · TSSOP-16
MC74LCX157DTR2G from onsemi, in a TSSOP-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 | S | input | Select input that chooses between Source 0 (I0n) and Source 1 (I1n) data inputs; 5.5 V tolerant, do not float. |
| 2 | I0a | input | Source 0 data input for channel a. |
| 3 | I1a | input | Source 1 data input for channel a. |
| 4 | Za | output | Channel a output presenting the selected data in true (non-inverted) form, 24 mA drive at VCC 3.0-3.6 V. |
| 5 | I0b | input | Source 0 data input for channel b. |
| 6 | I1b | input | Source 1 data input for channel b. |
| 7 | Zb | output | Channel b output presenting the selected data in true (non-inverted) form, 24 mA drive at VCC 3.0-3.6 V. |
| 8 | GND | power_in | Ground pin (0 V). |
| 9 | Zd | output | Channel d output presenting the selected data in true (non-inverted) form, 24 mA drive at VCC 3.0-3.6 V. |
| 10 | I1d | input | Source 1 data input for channel d. |
| 11 | I0d | input | Source 0 data input for channel d. |
| 12 | Zc | output | Channel c output presenting the selected data in true (non-inverted) form, 24 mA drive at VCC 3.0-3.6 V. |
| 13 | I1c | input | Source 1 data input for channel c. |
| 14 | I0c | input | Source 0 data input for channel c. |
| 15 | E̅ | input | Active-low enable input; when high all outputs are forced low; do not float. |
| 16 | VCC | power_in | Positive supply pin, 2.0 to 3.6 V operating (2.3 to 3.6 V designed), absolute maximum 7.0 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| Package | TSSOP-16 |
| Category | Logic |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
MC74LCX157DTR2G - Footprint:
Package_SO:TSSOP-16_4.4x5mm_P0.65mm - 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files:
mc74lcx157dtr2g-etched.step/mc74lcx157dtr2g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);mc74lcx157dtr2g.step/mc74lcx157dtr2g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: onsemi datasheet (7 pp, sha256
8803ec7a59ce8b58, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(vision), consensusclaude-opus-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).