component
SN74LVC1T45QDCKRQ1
Public Unreviewedby Ray
Texas Instruments Translators / Level Shifters, SC-70-6. 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
markdownSN74LVC1T45QDCKRQ1
Texas Instruments · Translators / Level Shifters · SC-70-6
SN74LVC1T45QDCKRQ1 from Texas Instruments, in a SC-70-6. 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 | SYSTEM-1 (A-port) supply voltage, 1.65 V to 5.5 V. Sets the A-port I/O rail and is the reference for the DIR input. If VCCA is at GND, both ports are placed in the high-impedance state. |
| 2 | GND | power_in | Device ground reference (0 V) for both supply rails. |
| 3 | A | bidirectional | A-port data I/O. Output level and input threshold are referenced to VCCA (1.65 V-5.5 V). Drives up to ±24 mA at 3.3 V. Data direction relative to B is set by DIR. |
| 4 | B | bidirectional | B-port data I/O. Output level and input threshold are referenced to VCCB (1.65 V-5.5 V). Drives up to ±24 mA at 3.3 V. Data direction relative to A is set by DIR. |
| 5 | DIR | input | Direction control input, referenced to VCCA. DIR = High selects A→B (A is input, B is output); DIR = Low selects B→A (B is input, A is output). |
| 6 | VCCB | power_in | SYSTEM-2 (B-port) supply voltage, 1.65 V to 5.5 V. Sets the B-port I/O rail. If VCCB is at GND, both ports are placed in the high-impedance state. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SC-70-6 |
| Category | Logic |
| Pins | 6 |
Ordering variants
Same part, different packaging or reel option.
SN74LVC1T45QDCKRQ1SN74LVC1T45QDCKRQ1DCKT
CAD (KiCad official)
- Symbol:
SN74LVC1T45QDCKRQ1 - Footprint:
Package_TO_SOT_SMD:SOT-363_SC-70-6 - 3D model: SC-70-6 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (29 pp, sha256
dde2d43289f87195, 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).