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CD74HC541PWR
Public Made by Adomby adom
Texas Instruments Buffers, Drivers, Receivers, Transceivers, TSSOP-20. Datasheet-verified pinout, 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
markdownCD74HC541PWR
Texas Instruments · Buffers, Drivers, Receivers, Transceivers · TSSOP-20
CD74HC541PWR from Texas Instruments, in a TSSOP-20. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OE1 | input | Active-low Output Enable 1; when either OE1 or OE2 is HIGH the Y outputs go to the high-impedance state, and both must be LOW for data to appear at the outputs. |
| 2 | A0 | input | Buffered noninverting data input 0 that is passed to output Y0 when both output enables are LOW. |
| 3 | A1 | input | Buffered noninverting data input 1 that is passed to output Y1 when both output enables are LOW. |
| 4 | A2 | input | Buffered noninverting data input 2 that is passed to output Y2 when both output enables are LOW. |
| 5 | A3 | input | Buffered noninverting data input 3 that is passed to output Y3 when both output enables are LOW. |
| 6 | A4 | input | Buffered noninverting data input 4 that is passed to output Y4 when both output enables are LOW. |
| 7 | A5 | input | Buffered noninverting data input 5 that is passed to output Y5 when both output enables are LOW. |
| 8 | A6 | input | Buffered noninverting data input 6 that is passed to output Y6 when both output enables are LOW. |
| 9 | A7 | input | Buffered noninverting data input 7 that is passed to output Y7 when both output enables are LOW. |
| 10 | GND | power_in | Ground reference (0 V) supply pin for the device. |
| 11 | Y7 | tri_state | Three-state noninverting buffered output for A7, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH. |
| 12 | Y6 | tri_state | Three-state noninverting buffered output for A6, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH. |
| 13 | Y5 | tri_state | Three-state noninverting buffered output for A5, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH. |
| 14 | Y4 | tri_state | Three-state noninverting buffered output for A4, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH. |
| 15 | Y3 | tri_state | Three-state noninverting buffered output for A3, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH. |
| 16 | Y2 | tri_state | Three-state noninverting buffered output for A2, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH. |
| 17 | Y1 | tri_state | Three-state noninverting buffered output for A1, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH. |
| 18 | Y0 | tri_state | Three-state noninverting buffered output for A0, capable of driving 15 LSTTL loads; goes high-impedance when OE1 or OE2 is HIGH. |
| 19 | OE2 | input | Active-low Output Enable 2; when either OE1 or OE2 is HIGH the Y outputs go to the high-impedance state, and both must be LOW for data to appear at the outputs. |
| 20 | VCC | power_in | Positive supply voltage pin; recommended operating range is 2 V to 6 V for HC types (4.5 V to 5.5 V for HCT types). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-20 |
| Category | Logic |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
CD74HC541PWR - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
cd74hc541pwr-etched.step/cd74hc541pwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cd74hc541pwr.step/cd74hc541pwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (26 pp, sha256
51030bc4f84d8bfd, retrieved 2026-09-23, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-sonnet-5(text+vision), consensusclaude-opus-4-8(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).