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YT6801

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by Ray

Motorcomm Ethernet Transceivers, QFN-32(4x4). Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

README

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YT6801

Motorcomm · Ethernet Transceivers · QFN-32(4x4)

YT6801 from Motorcomm, in a QFN-32(4x4). 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 TRXP0 bidirectional Differential transmitter/receiver signal pair 0 positive.
2 TRXN0 bidirectional Differential transmitter/receiver signal pair 0 negative.
3 AVDD12 power_in Analog power supply 1.2V.
4 TRXP1 bidirectional Differential transmitter/receiver signal pair 1 positive.
5 TRXN1 bidirectional Differential transmitter/receiver signal pair 1 negative.
6 TRXP2 bidirectional Differential transmitter/receiver signal pair 2 positive.
7 TRXN2 bidirectional Differential transmitter/receiver signal pair 2 negative.
8 AVDD12 power_in Analog power supply 1.2V.
9 TRXP3 bidirectional Differential transmitter/receiver signal pair 3 positive.
10 TRXN3 bidirectional Differential transmitter/receiver signal pair 3 negative.
11 AVDD33 power_in Analog power supply 3.3V.
12 CLKREQ_N tri_state PCI Express clock request input, active low, with open drain output capability and internal pull-up.
13 HSIP input High-speed receiver input positive for PCI Express.
14 HSIN input High-speed receiver input negative for PCI Express.
15 REFCLK_P input Reference clock input positive, 25 MHz fundamental mode crystal.
16 REFCLK_N input Reference clock input negative, 25 MHz fundamental mode crystal.
17 HSOP output High-speed transmitter output positive for PCI Express.
18 HSON output High-speed transmitter output negative for PCI Express.
19 PERST_N input PCI Express reset input, active low, with internal pull-down.
20 NC unconnected No connection.
21 WAKE_N tri_state Wake signal input, active low, with open drain output capability and internal pull-up.
22 DVDD12 power_in Digital power supply 1.2V.
23 VDDREG power_in Digital power supply 3.3V for regulator core.
24 REGOUT power_out Regulator output providing 1.2V supply for digital core.
25 LED2 output LED control output 2 with internal pull-down.
26 LED1 output LED control output 1 with internal pull-down.
27 LED0 output LED control output 0 with internal pull-up.
28 XTAL_I input Crystal oscillator input for 25 MHz external crystal.
29 XTAL_O bidirectional Crystal oscillator output/feedback for 25 MHz external crystal.
30 AVDD12 power_in Analog power supply 1.2V.
31 RBIAS input Reference bias input.
32 AVDD33 power_in Analog power supply 3.3V.
33 GND power_in Ground reference, exposed pad.

Key specifications

Parameter Value
Manufacturer Motorcomm
Package QFN-32(4x4)
Category Interface
Pins 33

CAD (KiCad official)

  • Symbol: YT6801
  • Footprint: Package_DFN_QFN:QFN-32-1EP_4x4mm_P0.4mm_EP2.9x2.9mm
  • 3D model: QFN-32(4x4) (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Motorcomm datasheet (13 pp, sha256 c1795d0139c56fe7, 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