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LAN8710A-EZC-TR-ABC

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Microchip Tech Ethernet Transceivers, VQFN-32-EP(5x5). Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Contents

README

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LAN8710A-EZC-TR-ABC

Microchip Tech · Ethernet Transceivers · VQFN-32-EP(5x5)

LAN8710A-EZC-TR-ABC from Microchip Tech, in a VQFN-32-EP(5x5). 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 VDD2A power_in +3.3V Analog Port Power Supply to Channel 2 and internal regulator.
2 LED2/nINTSEL output Link Speed LED output (active when operating speed is 100Mbps); output buffer type O12.
3 LED1/REGOFF output Link activity LED output (driven active when valid link detected, blinks during activity); output buffer type O12.
4 XTAL2 output External Crystal output for 25MHz crystal oscillator circuit.
5 XTAL1/CLKIN input External Crystal input or single-ended 25MHz clock oscillator input.
6 VDDCR power_in +1.2V Digital Core Power Supply, supplied by on-chip regulator or external 1.2V source; requires 1µF and 470pF parallel decoupling capacitors to ground.
7 RXCLK/PHYAD1 output Receive Clock output in MII mode (25MHz for 100BASE-TX, 2.5MHz for 10BASE-T); variable voltage output buffer type VO8, not used in RMII mode.
8 RXD3/PHYAD2 output Receive Data bit 3 (MSB of 4-bit data in MII mode); variable voltage output buffer type VO8, not used in RMII mode.
9 RXD2/RMIISEL output Receive Data bit 2 in MII mode or MII/RMII mode select configuration strap (low=MII, high=RMII); variable voltage output buffer type VO8.
10 RXD1/MODE1 output Receive Data bit 1 (2 in RMII mode); variable voltage output buffer type VO8.
11 RXD0/MODE0 output Receive Data bit 0 (2 in RMII mode); variable voltage output buffer type VO8.
12 VDDIO power_in +1.6V to +3.6V Variable I/O Power Supply for digital interface.
13 RXER/RXD4/PHYAD0 output Receive Error signal asserted when error detected in frame, or Receive Data 4 in Symbol Interface mode; variable voltage output buffer type VO8.
14 CRS output Carrier Sense output in MII mode; variable voltage output buffer type VO8, active during receive activity in full-duplex or repeater mode.
15 COL/CRS_DV/MODE2 output Collision Detect in MII mode or Carrier Sense/Receive Data Valid in RMII mode; variable voltage output buffer type VO8.
16 MDIO tri_state Serial Management Interface data input/output; variable voltage open-drain output buffer type VOD8, requires external pull-up resistor.
17 MDC input Serial Management Interface clock input; Schmitt trigger input buffer type IS, minimum time between edges 160ns.
18 nINT/TXER/TXD4 output Active low interrupt output or Transmit Error (MII mode) or Transmit Data 4 (MII Symbol Interface mode); variable voltage output buffer type VO8, requires external pull-up resistor.
19 nRST input System reset input, active low; variable voltage Schmitt trigger input buffer type VIS with internal pull-up.
20 TXCLK output Transmit Clock output in MII mode (25MHz for 100BASE-TX, 2.5MHz for 10BASE-T); variable voltage output buffer type VO8, not used in RMII mode.
21 TXEN input Transmit Enable input; indicates valid transmission data on TXD bus; variable voltage Schmitt trigger input buffer type VIS with internal pull-down.
22 TXD0 input Transmit Data bit 0 input; MAC transmits data to transceiver in all modes; variable voltage Schmitt trigger input buffer type VIS.
23 TXD1 input Transmit Data bit 1 input; MAC transmits data to transceiver in all modes; variable voltage Schmitt trigger input buffer type VIS.
24 TXD2 input Transmit Data bit 2 input in MII mode only; must be grounded in RMII mode; variable voltage Schmitt trigger input buffer type VIS.
25 TXD3 input Transmit Data bit 3 input in MII mode only; must be grounded in RMII mode; variable voltage Schmitt trigger input buffer type VIS.
26 RXDV output Receive Data Valid output; indicates recovered and decoded data available on RXD pins; variable voltage output buffer type VO8.
27 VDD1A power_in +3.3V Analog Port Power Supply to Channel 1.
28 TXN bidirectional Transmit/Receive Negative Channel 1 differential pair; analog bidirectional buffer type AIO, connects to Ethernet magnetics.
29 TXP bidirectional Transmit/Receive Positive Channel 1 differential pair; analog bidirectional buffer type AIO, connects to Ethernet magnetics.
30 RXN bidirectional Transmit/Receive Negative Channel 2 differential pair; analog bidirectional buffer type AIO, connects to Ethernet magnetics.
31 RXP bidirectional Transmit/Receive Positive Channel 2 differential pair; analog bidirectional buffer type AIO, connects to Ethernet magnetics.
32 RBIAS passive External 1% bias resistor input (12.1kΩ resistor to ground required); analog input buffer type AI, nominal voltage 1.2V, dissipates approximately 1mW.
33 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Microchip Tech
Package VQFN-32-EP(5x5)
Category Interface
Pins 33

CAD (KiCad official)

  • Symbol: LAN8710A-EZC-TR-ABC
  • Footprint: Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm
  • 3D model: VQFN-32-EP(5x5) (KiCad packages3D, STEP)
  • 3D model files: lan8710a-ezc-tr-abc-etched.step / lan8710a-ezc-tr-abc-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lan8710a-ezc-tr-abc.step / lan8710a-ezc-tr-abc.glb are the bare package body.

Provenance

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

  • Datasheet: Microchip Tech datasheet (80 pp, sha256 0f4b8670bcfc7e63, retrieved 2026-09-18, 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