component
TPIC1021DR
Public Made by Adomby adom
Texas Instruments LIN Transceivers, SOIC-8. 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
markdownTPIC1021DR
Texas Instruments · LIN Transceivers · SOIC-8
TPIC1021DR from Texas Instruments, in a SOIC-8. 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 | RXD | output | RXD is an open-drain output reporting the LIN bus state (high for recessive, low for dominant) and goes low on a wake-up request, requiring an external pull-up if the MCU pin has none. |
| 2 | EN | input | Enable input selecting Normal mode when high and low-power (sleep) mode when low, with an internal pull-down that keeps the device in low-power mode if the pin floats. |
| 3 | NWake | input | High-voltage wake-up input with DC and transient input voltage of -1 V to 40 V through a 33-kΩ series resistor, where a low longer than tNWAKE causes a local wake-up, and an internal pull-up to VSUP. |
| 4 | TXD | input | Transmit input controlling the LIN output, where low drives LIN dominant and high drives it recessive; it is compatible with 3.3 V and 5.0 V I/O, has an internal pull-down, and is protected by the dominant state timeout. |
| 5 | GND | power_in | Device ground connection; the device operates with a ground shift as long as VSUP does not fall below its minimum operating voltage. |
| 6 | LIN | bidirectional | Single-wire LIN bus transmitter and receiver that accepts DC voltages from -40 V to 40 V, with an internal 30-kΩ pull-up and series diode to VSUP for responder applications. |
| 7 | VSUP | power_in | Device supply pin, rated for 7 V to 27 V recommended operation (27 V continuous and 40 V transient absolute maximum), connected to the battery through an external reverse-blocking diode. |
| 8 | INH | output | Inhibit output that drives an external voltage regulator's inhibit input, with the high-side switch on in Normal mode and off in Low Power mode, and output current limited to 2 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Interface |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
TPIC1021DR - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
tpic1021dr-etched.step/tpic1021dr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tpic1021dr.step/tpic1021dr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (25 pp, sha256
9ce91d0367264a72, 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).