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SN74ABT241APWR
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
markdownSN74ABT241APWR
Texas Instruments · Buffers, Drivers, Receivers, Transceivers · TSSOP-20
SN74ABT241APWR 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 | 1OE | input | Active-low output enable for buffers 1A1 to 1A4 (outputs 1Y1 to 1Y4); when high, the outputs go to high impedance, and it should be tied to VCC through a pullup resistor so the outputs stay high-Z during power up or power down. |
| 2 | 1A1 | input | Data input to buffer channel 1 (drives 1Y1); unused inputs must be held high or low to prevent them from floating. |
| 3 | 2Y4 | tri_state | Three-state output of buffer channel 4 in the 2A group (follows 2A4 when 2OE is high); high-drive output rated -32 mA IOH and 64 mA IOL. |
| 4 | 1A2 | input | Data input to buffer channel 2 (drives 1Y2); unused inputs must be held high or low to prevent them from floating. |
| 5 | 2Y3 | tri_state | Three-state output of buffer channel 3 in the 2A group (follows 2A3 when 2OE is high); high-drive output rated -32 mA IOH and 64 mA IOL. |
| 6 | 1A3 | input | Data input to buffer channel 3 (drives 1Y3); unused inputs must be held high or low to prevent them from floating. |
| 7 | 2Y2 | tri_state | Three-state output of buffer channel 2 in the 2A group (follows 2A2 when 2OE is high); high-drive output rated -32 mA IOH and 64 mA IOL. |
| 8 | 1A4 | input | Data input to buffer channel 4 (drives 1Y4); unused inputs must be held high or low to prevent them from floating. |
| 9 | 2Y1 | tri_state | Three-state output of buffer channel 1 in the 2A group (follows 2A1 when 2OE is high); high-drive output rated -32 mA IOH and 64 mA IOL. |
| 10 | GND | power_in | Ground reference for the device. |
| 11 | 2A1 | input | Data input to buffer channel 1 of the 2A group (drives 2Y1); unused inputs must be held high or low to prevent them from floating. |
| 12 | 1Y4 | tri_state | Three-state output of buffer channel 4 in the 1A group (follows 1A4 when 1OE is low); high-drive output rated -32 mA IOH and 64 mA IOL. |
| 13 | 2A2 | input | Data input to buffer channel 2 of the 2A group (drives 2Y2); unused inputs must be held high or low to prevent them from floating. |
| 14 | 1Y3 | tri_state | Three-state output of buffer channel 3 in the 1A group (follows 1A3 when 1OE is low); high-drive output rated -32 mA IOH and 64 mA IOL. |
| 15 | 2A3 | input | Data input to buffer channel 3 of the 2A group (drives 2Y3); unused inputs must be held high or low to prevent them from floating. |
| 16 | 1Y2 | tri_state | Three-state output of buffer channel 2 in the 1A group (follows 1A2 when 1OE is low); high-drive output rated -32 mA IOH and 64 mA IOL. |
| 17 | 2A4 | input | Data input to buffer channel 4 of the 2A group (drives 2Y4); unused inputs must be held high or low to prevent them from floating. |
| 18 | 1Y1 | tri_state | Three-state output of buffer channel 1 in the 1A group (follows 1A1 when 1OE is low); high-drive output rated -32 mA IOH and 64 mA IOL. |
| 19 | 2OE | input | Output enable for buffers 2A1 to 2A4 (outputs 2Y1 to 2Y4); per the function table, outputs are enabled when this pin is high and go to high impedance when it is low. |
| 20 | VCC | power_in | Supply voltage, 4.5 V minimum to 5.5 V maximum recommended operating range. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-20 |
| Category | Logic |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
SN74ABT241APWR - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
sn74abt241apwr-etched.step/sn74abt241apwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74abt241apwr.step/sn74abt241apwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (25 pp, sha256
80ed78b29612fdcd, retrieved 2026-10-08, 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).