component
SN74LV245ANSR
Public Unreviewedby Ray
Texas Instruments Buffer/Driver/Transceiver, SOIC-20-208mil. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads when scrolled away or the tab is hidden.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads when scrolled away or the tab is hidden.
PCB Footprint
Open full view ↗Loads on click. Unloads when scrolled away or the tab is hidden.
Datasheet
Open in new tab ↗Loads on click. Unloads when scrolled away or the tab is hidden.
README
markdownSN74LV245ANSR
Texas Instruments · Buffer/Driver/Transceiver · SOIC-20-208mil
SN74LV245ANSR from Texas Instruments, in a SOIC-20-208mil. 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 | DIR | input | Direction control input. When HIGH, data flows from A-port to B-port (A -> B). When LOW, data flows from B-port to A-port (B -> A). CMOS-level input. |
| 2 | A1 | bidirectional | A-port channel 1 data I/O. Direction set by DIR; placed in high-impedance state when OE is HIGH. Supports mixed-mode voltage operation and partial-power-down (Ioff). |
| 3 | A2 | bidirectional | A-port channel 2 data I/O. Direction set by DIR; high-Z when OE is HIGH. |
| 4 | A3 | bidirectional | A-port channel 3 data I/O. Direction set by DIR; high-Z when OE is HIGH. |
| 5 | A4 | bidirectional | A-port channel 4 data I/O. Direction set by DIR; high-Z when OE is HIGH. |
| 6 | A5 | bidirectional | A-port channel 5 data I/O. Direction set by DIR; high-Z when OE is HIGH. |
| 7 | A6 | bidirectional | A-port channel 6 data I/O. Direction set by DIR; high-Z when OE is HIGH. |
| 8 | A7 | bidirectional | A-port channel 7 data I/O. Direction set by DIR; high-Z when OE is HIGH. |
| 9 | A8 | bidirectional | A-port channel 8 data I/O. Direction set by DIR; high-Z when OE is HIGH. |
| 10 | GND | power_in | Ground reference (0 V). Tie to the system ground plane; continuous current through VCC or GND is limited to +/-70 mA. |
| 11 | B8 | bidirectional | B-port channel 8 data I/O. Direction set by DIR; high-Z when OE is HIGH. |
| 12 | B7 | bidirectional | B-port channel 7 data I/O. Direction set by DIR; high-Z when OE is HIGH. |
| 13 | B6 | bidirectional | B-port channel 6 data I/O. Direction set by DIR; high-Z when OE is HIGH. |
| 14 | B5 | bidirectional | B-port channel 5 data I/O. Direction set by DIR; high-Z when OE is HIGH. |
| 15 | B4 | bidirectional | B-port channel 4 data I/O. Direction set by DIR; high-Z when OE is HIGH. |
| 16 | B3 | bidirectional | B-port channel 3 data I/O. Direction set by DIR; high-Z when OE is HIGH. |
| 17 | B2 | bidirectional | B-port channel 2 data I/O. Direction set by DIR; high-Z when OE is HIGH. |
| 18 | B1 | bidirectional | B-port channel 1 data I/O. Direction set by DIR; high-Z when OE is HIGH. |
| 19 | ~OE | input | Output enable, active LOW. When LOW, the A and B ports are enabled and driven per DIR. When HIGH, both ports are placed in the high-impedance (3-state) state, isolating the transceiver from the bus. |
| 20 | VCC | power_in | Positive supply. Recommended operating range 2 V to 5.5 V. Bypass with a local decoupling capacitor at the pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-20-208mil |
| Category | Logic |
| Pins | 20 |
Ordering variants
Same part, different packaging or reel option.
SN74LV245ANSRSN74LV245ANSRDBSN74LV245ANSRDBRSN74LV245ANSRDGVSN74LV245ANSRDGVRSN74LV245ANSRDWSN74LV245ANSRDWRSN74LV245ANSRPWSN74LV245ANSRPWRSN74LV245ANSRRGYSN74LV245ANSRRGYRSN74LV245ANSRWSN74LV245ANSRJSN74LV245ANSRFKSN74LV245ANSRGQN
CAD (KiCad official)
- Symbol:
SN74LV245ANSR - Footprint:
Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm - 3D model: SOIC-20-208mil (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (31 pp, sha256
15ef3ebb3b068efe, 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).