component
SN74ACT8541PWR
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.
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SN74ACT8541PWR
Texas Instruments · Buffers, Drivers, Receivers, Transceivers · TSSOP-20
SN74ACT8541PWR 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 | Output enable input 1, active low; it can force all channels into the high-impedance state together with OE2. |
| 2 | A1 | input | Schmitt-trigger input for channel 1 (TTL-compatible per the features list). |
| 3 | A2 | input | Schmitt-trigger input for channel 2 (TTL-compatible per the features list). |
| 4 | A3 | input | Schmitt-trigger input for channel 3 (TTL-compatible per the features list). |
| 5 | A4 | input | Schmitt-trigger input for channel 4 (TTL-compatible per the features list). |
| 6 | A5 | input | Schmitt-trigger input for channel 5 (TTL-compatible per the features list). |
| 7 | A6 | input | Schmitt-trigger input for channel 6 (TTL-compatible per the features list). |
| 8 | A7 | input | Schmitt-trigger input for channel 7 (TTL-compatible per the features list). |
| 9 | A8 | input | Schmitt-trigger input for channel 8 (TTL-compatible per the features list). |
| 10 | GND | power_in | Ground reference for the device. |
| 11 | Y8 | output | 3-state output for channel 8. |
| 12 | Y7 | output | 3-state output for channel 7. |
| 13 | Y6 | output | 3-state output for channel 6. |
| 14 | Y5 | output | 3-state output for channel 5. |
| 15 | Y4 | output | 3-state output for channel 4. |
| 16 | Y3 | output | 3-state output for channel 3. |
| 17 | Y2 | output | 3-state output for channel 2. |
| 18 | Y1 | output | 3-state output for channel 1. |
| 19 | OE2 | input | Output enable input 2, active low; it can force all channels into the high-impedance state together with OE1. |
| 20 | VCC | power_in | Positive supply; recommended operating range is 4.5 V to 5.5 V, with an absolute maximum of 7 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-20 |
| Category | Logic |
| Pins | 20 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage range | VCC | -0.5 | 7 | V | 4 | ||
| Input voltage range | VI | -0.5 | V | Upper limit printed as VCC + 0.5 V | 4 | ||
| Output voltage range | VO | -0.5 | V | Upper limit printed as VCC + 0.5 V | 4 | ||
| Input clamp current | IIK | -20 | 20 | mA | VI < -0.5 V or VI > VCC + 0.5 V | 4 | |
| Output clamp current | IOK | -50 | 50 | mA | VO < -0.5 V or VO > VCC + 0.5 V | 4 | |
| Continuous output current | IO | -50 | 50 | mA | VO = 0 to VCC | 4 | |
| Continuous current through VCC or GND | -200 | 200 | mA | 4 | |||
| Junction temperature | TJ | 150 | °C | 4 | |||
| Storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| Supply voltage | VCC | 4.5 | 5.5 | V | 4 | ||
| Input voltage | VI | 0 | V | Upper limit printed as VCC | 4 | ||
| Output voltage | VO | 0 | V | Upper limit printed as VCC | 4 | ||
| High-level output current | IOH | -24 | mA | 4.5V ≤ VCC ≤ 5.5V | 4 | ||
| Low-level output current | IOL | 24 | mA | 4.5V ≤ VCC ≤ 5.5V | 4 | ||
| Input transition rise or fall rate | Δt/Δv | 20 | ns/V | 4.5V ≤ VCC ≤ 5.5V | 4 | ||
| Operating free-air temperature | TA | -40 | 125 | °C | 4 | ||
| Positive-going input threshold voltage | VT+ | 1.2 | 1.5 | 1.9 | V | VCC = 4.5V | 5 |
| Positive-going input threshold voltage | VT+ | 1.4 | 2 | V | VCC = 5V | 5 | |
| Positive-going input threshold voltage | VT+ | 1.4 | 1.7 | 2.1 | V | VCC = 5.5V | 5 |
| Negative-going input threshold voltage | VT- | 0.5 | 0.9 | 1.2 | V | VCC = 4.5V | 5 |
| Negative-going input threshold voltage | VT- | 0.8 | 1.3 | V | VCC = 5V | 5 | |
| Negative-going input threshold voltage | VT- | 0.6 | 1 | 1.4 | V | VCC = 5.5V | 5 |
| Hysteresis (VT+ − VT-) | ΔVT | 0.4 | 0.6 | 1.4 | V | VCC = 4.5V | 5 |
| Hysteresis (VT+ − VT-) | ΔVT | 0.4 | V | VCC = 5V | 5 | ||
| Hysteresis (VT+ − VT-) | ΔVT | 0.4 | 0.6 | 1.5 | V | VCC = 5.5V | 5 |
| High-level output voltage | VOH | 4.4 | 4.49 | V | IOH = -50µA, VCC = 4.5V | 5 | |
| High-level output voltage | VOH | 5.4 | 5.49 | V | IOH = -50µA, VCC = 5.5V | 5 | |
| High-level output voltage | VOH | 3.7 | V | IOH = -24mA, VCC = 4.5V | 5 | ||
| High-level output voltage | VOH | 4.7 | V | IOH = -24mA, VCC = 5.5V | 5 | ||
| High-level output voltage | VOH | 3.85 | V | IOH = -50mA, VCC = 5.5V | 5 | ||
| Low-level output voltage | VOL | 0.001 | 0.1 | V | IOH = 50µA, VCC = 4.5V | 5 | |
| Low-level output voltage | VOL | 0.36 | 0.5 | V | IOH = 24mA, VCC = 4.5V | 5 | |
| Low-level output voltage | VOL | 1.65 | V | IOH = 50mA, VCC = 5.5V | 5 | ||
| Input leakage current | II | -1 | 0.1 | 1 | µA | VI = 5.5V or GND; VCC 0V to 5.5V | 5 |
| Off-state (high-impedance) output current | IOZ | -5 | 0.25 | 5 | µA | VO = VCC or GND; VCC 5.5V | 5 |
| Quiescent supply current | ICC | 2 | 80 | µA | VI = VCC or GND, IO = 0; VCC 5.5V | 5 | |
| Additional quiescent supply current per input | ΔICC | 0.6 | 1.5 | mA | VI = VCC, 2.1V; any input; VCC 4.5V to 5.5V | 5 | |
| Propagation delay low-to-high (A to Y) | tPLH | 4.2 | 5.8 | 7.1 | ns | CL = 50 pF; VCC = 5V | 6 |
| Propagation delay high-to-low (A to Y) | tPHL | 5 | 8.1 | 9.6 | ns | CL = 50 pF; VCC = 5V | 6 |
| Enable time high (OE to Y) | tPZH | 6.3 | 9.5 | 11.5 | ns | CL = 50 pF; VCC = 5V | 6 |
| Enable time low (OE to Y) | tPZL | 6.5 | 10 | 11.9 | ns | CL = 50 pF; VCC = 5V | 6 |
| Disable time high (OE to Y) | tPHZ | 5.3 | 6.8 | 7.8 | ns | CL = 50 pF; VCC = 5V | 6 |
| Disable time low (OE to Y) | tPLZ | 3.8 | 5.2 | 6.3 | ns | CL = 50 pF; VCC = 5V | 6 |
| Junction-to-ambient thermal resistance (PW, TSSOP) | RθJA | 126.2 | °C/W | 4 | |||
| Junction-to-case (top) thermal resistance (PW, TSSOP) | RθJC(top) | 68.7 | °C/W | 4 | |||
| Junction-to-board thermal resistance (PW, TSSOP) | RθJB | 77.3 | °C/W | 4 | |||
| Junction-to-top characterization parameter (PW, TSSOP) | ΨJT | 22.3 | °C/W | 4 | |||
| Junction-to-board characterization parameter (PW, TSSOP) | ΨJB | 76.9 | °C/W | 4 |
CAD (KiCad official)
- Symbol:
SN74ACT8541PWR - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
sn74act8541pwr-etched.step/sn74act8541pwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74act8541pwr.step/sn74act8541pwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (27 pp, sha256
b7bba2cb934dbac3, retrieved 2026-10-18, 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).
# SN74ACT8541PWR
**Texas Instruments** · Buffers, Drivers, Receivers, Transceivers · TSSOP-20
SN74ACT8541PWR 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 | Output enable input 1, active low; it can force all channels into the high-impedance state together with OE2. |
| 2 | A1 | input | Schmitt-trigger input for channel 1 (TTL-compatible per the features list). |
| 3 | A2 | input | Schmitt-trigger input for channel 2 (TTL-compatible per the features list). |
| 4 | A3 | input | Schmitt-trigger input for channel 3 (TTL-compatible per the features list). |
| 5 | A4 | input | Schmitt-trigger input for channel 4 (TTL-compatible per the features list). |
| 6 | A5 | input | Schmitt-trigger input for channel 5 (TTL-compatible per the features list). |
| 7 | A6 | input | Schmitt-trigger input for channel 6 (TTL-compatible per the features list). |
| 8 | A7 | input | Schmitt-trigger input for channel 7 (TTL-compatible per the features list). |
| 9 | A8 | input | Schmitt-trigger input for channel 8 (TTL-compatible per the features list). |
| 10 | GND | power_in | Ground reference for the device. |
| 11 | Y8 | output | 3-state output for channel 8. |
| 12 | Y7 | output | 3-state output for channel 7. |
| 13 | Y6 | output | 3-state output for channel 6. |
| 14 | Y5 | output | 3-state output for channel 5. |
| 15 | Y4 | output | 3-state output for channel 4. |
| 16 | Y3 | output | 3-state output for channel 3. |
| 17 | Y2 | output | 3-state output for channel 2. |
| 18 | Y1 | output | 3-state output for channel 1. |
| 19 | OE2 | input | Output enable input 2, active low; it can force all channels into the high-impedance state together with OE1. |
| 20 | VCC | power_in | Positive supply; recommended operating range is 4.5 V to 5.5 V, with an absolute maximum of 7 V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-20 |
| Category | Logic |
| Pins | 20 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage range | VCC | -0.5 | | 7 | V | | 4 |
| Input voltage range | VI | -0.5 | | | V | Upper limit printed as VCC + 0.5 V | 4 |
| Output voltage range | VO | -0.5 | | | V | Upper limit printed as VCC + 0.5 V | 4 |
| Input clamp current | IIK | -20 | | 20 | mA | VI < -0.5 V or VI > VCC + 0.5 V | 4 |
| Output clamp current | IOK | -50 | | 50 | mA | VO < -0.5 V or VO > VCC + 0.5 V | 4 |
| Continuous output current | IO | -50 | | 50 | mA | VO = 0 to VCC | 4 |
| Continuous current through VCC or GND | | -200 | | 200 | mA | | 4 |
| Junction temperature | TJ | | | 150 | °C | | 4 |
| Storage temperature | Tstg | -65 | | 150 | °C | | 4 |
| Supply voltage | VCC | 4.5 | | 5.5 | V | | 4 |
| Input voltage | VI | 0 | | | V | Upper limit printed as VCC | 4 |
| Output voltage | VO | 0 | | | V | Upper limit printed as VCC | 4 |
| High-level output current | IOH | -24 | | | mA | 4.5V ≤ VCC ≤ 5.5V | 4 |
| Low-level output current | IOL | | | 24 | mA | 4.5V ≤ VCC ≤ 5.5V | 4 |
| Input transition rise or fall rate | Δt/Δv | | | 20 | ns/V | 4.5V ≤ VCC ≤ 5.5V | 4 |
| Operating free-air temperature | TA | -40 | | 125 | °C | | 4 |
| Positive-going input threshold voltage | VT+ | 1.2 | 1.5 | 1.9 | V | VCC = 4.5V | 5 |
| Positive-going input threshold voltage | VT+ | 1.4 | | 2 | V | VCC = 5V | 5 |
| Positive-going input threshold voltage | VT+ | 1.4 | 1.7 | 2.1 | V | VCC = 5.5V | 5 |
| Negative-going input threshold voltage | VT- | 0.5 | 0.9 | 1.2 | V | VCC = 4.5V | 5 |
| Negative-going input threshold voltage | VT- | 0.8 | | 1.3 | V | VCC = 5V | 5 |
| Negative-going input threshold voltage | VT- | 0.6 | 1 | 1.4 | V | VCC = 5.5V | 5 |
| Hysteresis (VT+ − VT-) | ΔVT | 0.4 | 0.6 | 1.4 | V | VCC = 4.5V | 5 |
| Hysteresis (VT+ − VT-) | ΔVT | 0.4 | | | V | VCC = 5V | 5 |
| Hysteresis (VT+ − VT-) | ΔVT | 0.4 | 0.6 | 1.5 | V | VCC = 5.5V | 5 |
| High-level output voltage | VOH | 4.4 | 4.49 | | V | IOH = -50µA, VCC = 4.5V | 5 |
| High-level output voltage | VOH | 5.4 | 5.49 | | V | IOH = -50µA, VCC = 5.5V | 5 |
| High-level output voltage | VOH | 3.7 | | | V | IOH = -24mA, VCC = 4.5V | 5 |
| High-level output voltage | VOH | 4.7 | | | V | IOH = -24mA, VCC = 5.5V | 5 |
| High-level output voltage | VOH | 3.85 | | | V | IOH = -50mA, VCC = 5.5V | 5 |
| Low-level output voltage | VOL | | 0.001 | 0.1 | V | IOH = 50µA, VCC = 4.5V | 5 |
| Low-level output voltage | VOL | | 0.36 | 0.5 | V | IOH = 24mA, VCC = 4.5V | 5 |
| Low-level output voltage | VOL | | | 1.65 | V | IOH = 50mA, VCC = 5.5V | 5 |
| Input leakage current | II | -1 | 0.1 | 1 | µA | VI = 5.5V or GND; VCC 0V to 5.5V | 5 |
| Off-state (high-impedance) output current | IOZ | -5 | 0.25 | 5 | µA | VO = VCC or GND; VCC 5.5V | 5 |
| Quiescent supply current | ICC | | 2 | 80 | µA | VI = VCC or GND, IO = 0; VCC 5.5V | 5 |
| Additional quiescent supply current per input | ΔICC | | 0.6 | 1.5 | mA | VI = VCC, 2.1V; any input; VCC 4.5V to 5.5V | 5 |
| Propagation delay low-to-high (A to Y) | tPLH | 4.2 | 5.8 | 7.1 | ns | CL = 50 pF; VCC = 5V | 6 |
| Propagation delay high-to-low (A to Y) | tPHL | 5 | 8.1 | 9.6 | ns | CL = 50 pF; VCC = 5V | 6 |
| Enable time high (OE to Y) | tPZH | 6.3 | 9.5 | 11.5 | ns | CL = 50 pF; VCC = 5V | 6 |
| Enable time low (OE to Y) | tPZL | 6.5 | 10 | 11.9 | ns | CL = 50 pF; VCC = 5V | 6 |
| Disable time high (OE to Y) | tPHZ | 5.3 | 6.8 | 7.8 | ns | CL = 50 pF; VCC = 5V | 6 |
| Disable time low (OE to Y) | tPLZ | 3.8 | 5.2 | 6.3 | ns | CL = 50 pF; VCC = 5V | 6 |
| Junction-to-ambient thermal resistance (PW, TSSOP) | RθJA | | 126.2 | | °C/W | | 4 |
| Junction-to-case (top) thermal resistance (PW, TSSOP) | RθJC(top) | | 68.7 | | °C/W | | 4 |
| Junction-to-board thermal resistance (PW, TSSOP) | RθJB | | 77.3 | | °C/W | | 4 |
| Junction-to-top characterization parameter (PW, TSSOP) | ΨJT | | 22.3 | | °C/W | | 4 |
| Junction-to-board characterization parameter (PW, TSSOP) | ΨJB | | 76.9 | | °C/W | | 4 |
## CAD (KiCad official)
- Symbol: `SN74ACT8541PWR`
- Footprint: `Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm`
- 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files: `sn74act8541pwr-etched.step` / `sn74act8541pwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn74act8541pwr.step` / `sn74act8541pwr.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/sn74act8541.pdf) (27 pp, sha256 `b7bba2cb934dbac3`, retrieved 2026-10-18, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-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).
[Datasheet PDF](docs/sn74act8541pwr-datasheet.pdf)