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SN74LVCH8T245PWR
Public Unreviewedby Ray
Texas Instruments Buffer/Driver/Transceiver, TSSOP-24. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
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PCB Footprint
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Datasheet
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README
markdownSN74LVCH8T245PWR
Texas Instruments · Buffer/Driver/Transceiver · TSSOP-24
SN74LVCH8T245PWR from Texas Instruments, in a TSSOP-24. 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 | VCCA | power_in | A-port supply voltage. 1.65V ≤ VCCA ≤ 5.5V. Sets the reference for A-port I/O and control-input logic thresholds. |
| 2 | DIR | input | Direction-control signal. Referenced to VCCA. DIR=H transmits A→B; DIR=L transmits B→A. |
| 3 | A1 | bidirectional | Input/output A1, channel 1 of the A port. Referenced to VCCA. |
| 4 | A2 | bidirectional | Input/output A2, channel 2 of the A port. Referenced to VCCA. |
| 5 | A3 | bidirectional | Input/output A3, channel 3 of the A port. Referenced to VCCA. |
| 6 | A4 | bidirectional | Input/output A4, channel 4 of the A port. Referenced to VCCA. |
| 7 | A5 | bidirectional | Input/output A5, channel 5 of the A port. Referenced to VCCA. |
| 8 | A6 | bidirectional | Input/output A6, channel 6 of the A port. Referenced to VCCA. |
| 9 | A7 | bidirectional | Input/output A7, channel 7 of the A port. Referenced to VCCA. |
| 10 | A8 | bidirectional | Input/output A8, channel 8 of the A port. Referenced to VCCA. |
| 11 | GND | power_in | Ground reference for the device. Tie to system ground; one of three GND pins (11, 12, 13). |
| 12 | GND | power_in | Ground reference for the device. Tie to system ground; one of three GND pins (11, 12, 13). |
| 13 | GND | power_in | Ground reference for the device. Tie to system ground; one of three GND pins (11, 12, 13). |
| 14 | B8 | bidirectional | Input/output B8, channel 8 of the B port. Referenced to VCCB. |
| 15 | B7 | bidirectional | Input/output B7, channel 7 of the B port. Referenced to VCCB. |
| 16 | B6 | bidirectional | Input/output B6, channel 6 of the B port. Referenced to VCCB. |
| 17 | B5 | bidirectional | Input/output B5, channel 5 of the B port. Referenced to VCCB. |
| 18 | B4 | bidirectional | Input/output B4, channel 4 of the B port. Referenced to VCCB. |
| 19 | B3 | bidirectional | Input/output B3, channel 3 of the B port. Referenced to VCCB. |
| 20 | B2 | bidirectional | Input/output B2, channel 2 of the B port. Referenced to VCCB. |
| 21 | B1 | bidirectional | Input/output B1, channel 1 of the B port. Referenced to VCCB. |
| 22 | ~{OE} | input | Active-low 3-state output-mode enable. Pull ~{OE} high to place all outputs in the high-impedance state; drive low to enable transmission in the direction set by DIR. Referenced to VCCA. |
| 23 | VCCB | power_in | B-port supply voltage. 1.65V ≤ VCCB ≤ 5.5V. Sets the reference for B-port I/O logic thresholds. Pin 23 is one of two VCCB pins (23, 24). |
| 24 | VCCB | power_in | B-port supply voltage. 1.65V ≤ VCCB ≤ 5.5V. Sets the reference for B-port I/O logic thresholds. Pin 24 is one of two VCCB pins (23, 24). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-24 |
| Category | Logic |
| Pins | 24 |
Ordering variants
Same part, different packaging or reel option.
SN74LVCH8T245PWRSN74LVCH8T245PWRDBSN74LVCH8T245PWRDBRSN74LVCH8T245PWRDGVSN74LVCH8T245PWRDGVRSN74LVCH8T245PWRRHLSN74LVCH8T245PWRRHLR
CAD (KiCad official)
- Symbol:
SN74LVCH8T245PWR - Footprint:
Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm - 3D model: TSSOP-24 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (36 pp, sha256
30d0c1c87773bd7a, retrieved 2026-08-17, tier: manufacturer) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).