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SN74AXC8T245PWR
Public Made by Adomby adom
Texas Instruments Buffers / Drivers, TSSOP-24. 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
markdownSN74AXC8T245PWR
Texas Instruments · Buffers / Drivers · TSSOP-24
SN74AXC8T245PWR from Texas Instruments, in a TSSOP-24. 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 | VCCA | power_in | A-port supply voltage, 0.65V ≤ VCCA ≤ 3.6V. |
| 2 | DIR1 | input | Direction-control signal 1, referenced to VCCA. |
| 3 | A1 | bidirectional | Input/output A1, referenced to VCCA. |
| 4 | A2 | bidirectional | Input/output A2, referenced to VCCA. |
| 5 | A3 | bidirectional | Input/output A3, referenced to VCCA. |
| 6 | A4 | bidirectional | Input/output A4, referenced to VCCA. |
| 7 | A5 | bidirectional | Input/output A5, referenced to VCCA. |
| 8 | A6 | bidirectional | Input/output A6, referenced to VCCA. |
| 9 | A7 | bidirectional | Input/output A7, referenced to VCCA. |
| 10 | A8 | bidirectional | Input/output A8, referenced to VCCA. |
| 11 | DIR2 | input | Direction-control signal 2, referenced to VCCA; tie to GND to maintain backward compatibility with SN74AVC8T245. |
| 12 | GND | power_in | Ground. |
| 13 | GND | power_in | Ground. |
| 14 | B8 | bidirectional | Input/output B8, referenced to VCCB. |
| 15 | B7 | bidirectional | Input/output B7, referenced to VCCB. |
| 16 | B6 | bidirectional | Input/output B6, referenced to VCCB. |
| 17 | B5 | bidirectional | Input/output B5, referenced to VCCB. |
| 18 | B4 | bidirectional | Input/output B4, referenced to VCCB. |
| 19 | B3 | bidirectional | Input/output B3, referenced to VCCB. |
| 20 | B2 | bidirectional | Input/output B2, referenced to VCCB. |
| 21 | B1 | bidirectional | Input/output B1, referenced to VCCB. |
| 22 | OE | input | Output Enable, referenced to VCCA; pull to GND to enable all outputs, pull to VCCA to place all outputs in high-impedance mode. |
| 23 | VCCB | power_in | B-port supply voltage, 0.65V ≤ VCCB ≤ 3.6V. |
| 24 | VCCB | power_in | B-port supply voltage, 0.65V ≤ VCCB ≤ 3.6V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-24 |
| Category | Logic ICs |
| Pins | 24 |
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 VCCA | VCCA | 0.65 | 3.6 | V | 5 | ||
| Supply voltage VCCB | VCCB | 0.65 | 3.6 | V | 5 | ||
| High-level input voltage, data inputs | VIH | 2 | V | VCCI = 3V - 3.6V | 5 | ||
| Low-level input voltage, data inputs | VIL | 0.8 | V | VCCI = 3V - 3.6V | 5 | ||
| Input voltage | VI | 0 | 3.6 | V | 5 | ||
| Output voltage, tri-state | VO | 0 | 3.6 | V | Tri-state | 5 | |
| Input transition rise or fall rate | Δt/Δv | 10 | ns/V | 5 | |||
| Operating free-air temperature | TA | -40 | 125 | °C | 5 | ||
| Supply voltage VCCA abs max | VCCA | -0.5 | 4.2 | V | 4 | ||
| Supply voltage VCCB abs max | VCCB | -0.5 | 4.2 | V | 4 | ||
| Input voltage, I/O ports A | VI | -0.5 | 4.2 | V | A port | 4 | |
| Input voltage, control inputs | VI | -0.5 | 4.2 | V | Control inputs | 4 | |
| Output voltage high-Z or power-off | VO | -0.5 | 4.2 | V | A port or B port | 4 | |
| Output voltage high or low state, A port | VO | -0.5 | 0.2 | V | A port, max is VCCA + 0.2 | 4 | |
| Input clamp current | IIK | -50 | mA | VI < 0 | 4 | ||
| Output clamp current | IOK | -50 | mA | VO < 0 | 4 | ||
| Continuous output current | IO | -50 | 50 | mA | 4 | ||
| Continuous current through VCCA, VCCB, or GND | -100 | 100 | mA | 4 | |||
| Junction temperature | TJ | 150 | °C | 4 | |||
| Storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| ESD HBM | V(ESD) | -8000 | 8000 | V | Human-body model, ANSI/ESDA/JEDEC JS-001 | 4 | |
| ESD CDM | V(ESD) | -1000 | 1000 | V | Charged-device model, JESD22-C101 | 4 | |
| Junction-to-ambient thermal resistance | RθJA | 92 | °C/W | PW (TSSOP) 24 pins | 5 | ||
| Junction-to-case (top) thermal resistance | RθJC(top) | 29.3 | °C/W | PW (TSSOP) 24 pins | 5 | ||
| Junction-to-board thermal resistance | RθJB | 46.7 | °C/W | PW (TSSOP) 24 pins | 5 | ||
| Junction-to-top characterization parameter | ψJT | 1.5 | °C/W | PW (TSSOP) 24 pins | 5 | ||
| Junction-to-board characterization parameter | ψJB | 46.2 | °C/W | PW (TSSOP) 24 pins | 5 | ||
| High-level output voltage | VOH | 0 | V | VI = VIH, IOH = -100µA, VCCA/VCCB 0.7V - 3.6V, min = VCCO, 0.1 (-40°C to 125°C) | 6 | ||
| High-level output voltage | VOH | 2.3 | V | VI = VIH, IOH = -12mA, VCCA = VCCB = 3V, -40°C to 125°C | 6 | ||
| Low-level output voltage | VOL | 0.1 | V | VI = VIL, IOL = 100µA, VCCA/VCCB 0.7V - 3.6V, -40°C to 125°C | 6 | ||
| Low-level output voltage | VOL | 0.7 | V | VI = VIL, IOL = 12mA, VCCA = VCCB = 3V, -40°C to 125°C | 6 | ||
| Input leakage current, control inputs | II | -1 | 1 | µA | VI = VCCA or GND, VCCA/VCCB 0.65V - 3.6V, -40°C to 125°C | 6 | |
| Partial power down current, A port | Ioff | -8 | 8 | µA | VI or VO = 0V - 3.6V, VCCA = 0V, VCCB = 0V - 3.6V, -40°C to 125°C | 6 | |
| Partial power down current, B port | Ioff | -8 | 8 | µA | VI or VO = 0V - 3.6V, VCCA = 0V - 3.6V, VCCB = 0V, -40°C to 125°C | 6 | |
| High-impedance state output current, A port | IOZ | -8 | 8 | µA | VO = VCCO or GND, VI = VCCI or GND, OE = VIH, 3.6V, -40°C to 125°C | 6 | |
| High-impedance state output current, B port | IOZ | -8 | 8 | µA | VO = VCCO or GND, VI = VCCI or GND, OE = VIH, 3.6V, -40°C to 125°C | 6 | |
| VCCA supply current | ICCA | 40 | µA | VI = VCCI or GND, IO = 0mA, VCCA/VCCB 0.65V - 3.6V, -40°C to 125°C | 6 | ||
| VCCB supply current | ICCB | 38 | µA | VI = VCCI or GND, IO = 0mA, VCCA/VCCB 0.65V - 3.6V, -40°C to 125°C | 6 | ||
| Combined supply current | ICCA + ICCB | 55 | µA | VI = VCCI or GND, IO = 0mA, 0.65V - 3.6V, -40°C to 125°C | 6 | ||
| Input capacitance, control inputs | Ci | 4.5 | pF | VI = 3.3V or GND, VCCA = VCCB = 3.3V | 6 | ||
| Data I/O capacitance | Cio | 5.7 | pF | OE = VCCA, VO = 1.65V DC + 1MHz -16dBm sine wave, 3.3V | 6 | ||
| Propagation delay A to B | tpd | 0.5 | 4 | ns | VCCA = 3.3V, VCCB = 3.3V ± 0.3V, -40°C to 125°C | 14 | |
| Propagation delay B to A | tpd | 0.5 | 4 | ns | VCCA = 3.3V, VCCB = 3.3V ± 0.3V, -40°C to 125°C | 14 | |
| Disable time OE to A | tdis | 0.5 | 24 | ns | VCCA = 3.3V, VCCB = 3.3V ± 0.3V, -40°C to 125°C | 14 | |
| Disable time OE to B | tdis | 0.5 | 25 | ns | VCCA = 3.3V, VCCB = 3.3V ± 0.3V, -40°C to 125°C | 14 | |
| Enable time OE to A | ten | 0.5 | 10 | ns | VCCA = 3.3V, VCCB = 3.3V ± 0.3V, -40°C to 125°C | 14 | |
| Enable time OE to B | ten | 0.5 | 7 | ns | VCCA = 3.3V, VCCB = 3.3V ± 0.3V, -40°C to 125°C | 14 |
CAD (KiCad official)
- Symbol:
SN74AXC8T245PWR - Footprint:
Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm - 3D model: TSSOP-24 (KiCad packages3D, STEP)
- 3D model files:
sn74axc8t245pwr-etched.step/sn74axc8t245pwr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sn74axc8t245pwr.step/sn74axc8t245pwr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (39 pp, sha256
6cf4003c438c0546, retrieved 2026-10-22, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).