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Contents

README

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MCP2003B-H

Microchip Tech · LIN Transceivers · SOIC-8

MCP2003B-H from Microchip Tech, in a SOIC-8. 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 RXD tri_state Open-drain receive data output following LIN bus state except in Power-Down mode; must be pulled high externally (>2.5V typical while LBUS recessive in Operation mode).
2 CS input Chip select input with internal pull-down resistor; high level activates transmitter with 10 µs typical low-pass filter; HV tolerant.
3 WAKE input Wake-up input with internal 800 kΩ pull-up to VBB; falling edge transitions device from Power-Down to Ready mode; HV tolerant.
4 TXD input Transmit data input with internal pull-up; low drives LBUS dominant, high drives recessive; internally forced high when transmitter disabled; timeout at approximately 25 ms continuous low; HV tolerant.
5 VSS power_in Ground reference pin.
6 LBUS bidirectional Bidirectional LIN bus pin with current-limited open collector driver (40-200 mA at 0.2 VBB) and internal receiver; internal pull-up resistor 20-60 kΩ in Operation mode; recessive threshold 0.6 VBB to VBB, dominant threshold -8 V to 0.4 VBB.
7 VBB power_in Battery positive supply voltage input; operating range 5.5 V to 30.0 V continuous; quiescent current 65-150 µA typical.
8 VREN tri_state Open-drain voltage regulator enable output pulled high to VBB in all modes except Power-Down; output current 5-40 mA at VBB - 0.5 V to VBB - 2.0 V.

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package SOIC-8
Category Interface
Pins 8

CAD (KiCad official)

  • Symbol: MCP2003B-H
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Microchip Tech datasheet (32 pp, sha256 d89c165048b73ca3, retrieved 2026-09-17, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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).

Datasheet PDF