component
SN74HC258PWR
Public Made by Adomby adom
Texas Instruments 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
markdownSN74HC258PWR
Texas Instruments · Signal Switches, Multiplexers, Decoders · TSSOP-16
SN74HC258PWR from Texas Instruments, 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 | A/B | input | Common address-select input; low selects A data inputs, high selects B data inputs for all four channels. |
| 2 | 1A | input | Channel-1 data input from source A; selected when A/B is low and G is low. |
| 3 | 1B | input | Channel-1 data input from source B; selected when A/B is high and G is low. |
| 4 | 1Y | tri_state | Channel-1 inverted 3-state output; presents complement of selected input when G is low, high-impedance when G is high; ±6 mA drive at 5 V. |
| 5 | 2A | input | Channel-2 data input from source A; selected when A/B is low and G is low. |
| 6 | 2B | input | Channel-2 data input from source B; selected when A/B is high and G is low. |
| 7 | 2Y | tri_state | Channel-2 inverted 3-state output; presents complement of selected input when G is low, high-impedance when G is high; ±6 mA drive at 5 V. |
| 8 | GND | power_in | Ground reference; continuous current through GND pin not to exceed ±70 mA. |
| 9 | 3Y | tri_state | Channel-3 inverted 3-state output; presents complement of selected input when G is low, high-impedance when G is high; ±6 mA drive at 5 V. |
| 10 | 3B | input | Channel-3 data input from source B; selected when A/B is high and G is low. |
| 11 | 3A | input | Channel-3 data input from source A; selected when A/B is low and G is low. |
| 12 | 4Y | tri_state | Channel-4 inverted 3-state output; presents complement of selected input when G is low, high-impedance when G is high; ±6 mA drive at 5 V. |
| 13 | 4B | input | Channel-4 data input from source B; selected when A/B is high and G is low. |
| 14 | 4A | input | Channel-4 data input from source A; selected when A/B is low and G is low. |
| 15 | /G | input | Active-low output enable (strobe); a high level forces all four Y outputs into the high-impedance state regardless of data or address inputs. |
| 16 | VCC | power_in | Positive supply voltage; recommended operating range 2 V to 6 V; continuous current not to exceed ±70 mA; decouple with 0.1 µF ceramic capacitor placed as close to pin as possible. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-16 |
| Category | Logic |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
SN74HC258PWR - Footprint:
Package_SO:TSSOP-16_4.4x5mm_P0.65mm - 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files:
sn74hc258pwr-etched.step/sn74hc258pwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74hc258pwr.step/sn74hc258pwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (29 pp, sha256
d8caefbacd746d02, retrieved 2026-09-27, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-sonnet-4-6(text+vision), consensusclaude-opus-4-7(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).