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SN74AHC541QPWRQ1
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, TSSOP-20. 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
markdownSN74AHC541QPWRQ1
Texas Instruments · Buffers, Drivers, Receivers, Transceivers · TSSOP-20
SN74AHC541QPWRQ1 from Texas Instruments, in a TSSOP-20. 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 | OE1 | input | Active-low output enable input that enables buffered outputs Y1-Y8 when OE1=L and OE2=L, putting outputs into high-impedance state when OE1=H. |
| 2 | A1 | input | Data input to buffer/driver stage A1, buffered to output Y1 when outputs enabled (OE1=L and OE2=L). |
| 3 | A2 | input | Data input to buffer/driver stage A2, buffered to output Y2 when outputs enabled (OE1=L and OE2=L). |
| 4 | A3 | input | Data input to buffer/driver stage A3, buffered to output Y3 when outputs enabled (OE1=L and OE2=L). |
| 5 | A4 | input | Data input to buffer/driver stage A4, buffered to output Y4 when outputs enabled (OE1=L and OE2=L). |
| 6 | A5 | input | Data input to buffer/driver stage A5, buffered to output Y5 when outputs enabled (OE1=L and OE2=L). |
| 7 | A6 | input | Data input to buffer/driver stage A6, buffered to output Y6 when outputs enabled (OE1=L and OE2=L). |
| 8 | A7 | input | Data input to buffer/driver stage A7, buffered to output Y7 when outputs enabled (OE1=L and OE2=L). |
| 9 | A8 | input | Data input to buffer/driver stage A8, buffered to output Y8 when outputs enabled (OE1=L and OE2=L). |
| 10 | GND | power_in | Ground connection providing logic reference voltage of 0V. |
| 11 | Y8 | tri_state | Buffered output Y8, non-inverted copy of A8 input when outputs enabled (OE1=L and OE2=L), high-impedance when OE1=H or OE2=H. |
| 12 | Y7 | tri_state | Buffered output Y7, non-inverted copy of A7 input when outputs enabled (OE1=L and OE2=L), high-impedance when OE1=H or OE2=H. |
| 13 | Y6 | tri_state | Buffered output Y6, non-inverted copy of A6 input when outputs enabled (OE1=L and OE2=L), high-impedance when OE1=H or OE2=H. |
| 14 | Y5 | tri_state | Buffered output Y5, non-inverted copy of A5 input when outputs enabled (OE1=L and OE2=L), high-impedance when OE1=H or OE2=H. |
| 15 | Y4 | tri_state | Buffered output Y4, non-inverted copy of A4 input when outputs enabled (OE1=L and OE2=L), high-impedance when OE1=H or OE2=H. |
| 16 | Y3 | tri_state | Buffered output Y3, non-inverted copy of A3 input when outputs enabled (OE1=L and OE2=L), high-impedance when OE1=H or OE2=H. |
| 17 | Y2 | tri_state | Buffered output Y2, non-inverted copy of A2 input when outputs enabled (OE1=L and OE2=L), high-impedance when OE1=H or OE2=H. |
| 18 | Y1 | tri_state | Buffered output Y1, non-inverted copy of A1 input when outputs enabled (OE1=L and OE2=L), high-impedance when OE1=H or OE2=H. |
| 19 | OE2 | input | Active-low output enable input that enables buffered outputs Y1-Y8 when OE2=L and OE1=L, putting outputs into high-impedance state when OE2=H. |
| 20 | VCC | power_in | Positive power supply pin accepting 2.0V to 5.5V per recommended operating conditions. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-20 |
| Category | Logic |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
SN74AHC541QPWRQ1 - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
sn74ahc541qpwrq1-etched.step/sn74ahc541qpwrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74ahc541qpwrq1.step/sn74ahc541qpwrq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (24 pp, sha256
2f0a0b9c531d6613, retrieved 2026-10-06, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(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).