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DP83630SQX

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Texas Instruments Ethernet Transceivers, QFN-48-EP(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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DP83630SQX

Texas Instruments · Ethernet Transceivers · QFN-48-EP(7x7)

DP83630SQX from Texas Instruments, in a QFN-48-EP(7x7). 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 TX_CLK output MII transmit clock output (25 MHz at 100 Mb/s, 2.5 MHz at 10 Mb/s) derived from reference clock; outputs 50 MHz in RMII Master mode.
2 TX_EN input MII transmit enable input; active high indicates valid data on TXD[3:0] (MII) or TXD[1:0] (RMII).
3 TXD_0 input MII transmit data bit 0 input synchronous to TX_CLK.
4 TXD_1 input MII transmit data bit 1 input synchronous to TX_CLK.
5 TXD_2 input MII transmit data bit 2 input synchronous to TX_CLK.
6 TXD_3 input MII transmit data bit 3 input or RMII bit 1; also RMII_MAS strap pin for RMII Master mode configuration.
7 PWRDOWN/INTN input Power down input (asserted low enables low power mode) or programmable interrupt output (active low); register access required for configuration.
8 TCK input JTAG test clock input with internal pullup.
9 TDO output JTAG test data output; also usable as GPIO10 for IEEE 1588 event capture or triggering.
10 TMS input JTAG test mode select input with internal pullup.
11 TRST# input JTAG test reset input (active low) with internal pullup.
12 TDI input JTAG test data input with internal pullup; also usable as GPIO11 for IEEE 1588 event capture or triggering.
13 RD- bidirectional Differential receive input pair for 100BASE-TX or 10BASE-T signaling; Auto-MDIX capable for transmit in crossed mode.
14 RD+ bidirectional Differential receive input pair for 100BASE-TX or 10BASE-T signaling; Auto-MDIX capable for transmit in crossed mode.
15 CD_VSS power_in Analog ground for Common Mode Drive reference.
16 TD- bidirectional Differential transmit pair output for 10BASE-T or 100BASE-TX signaling; Auto-MDIX capable for receive in crossed mode.
17 TD+ bidirectional Differential transmit pair output for 10BASE-T or 100BASE-TX signaling; Auto-MDIX capable for receive in crossed mode.
18 ANAVSS power_in Analog ground.
19 ANA33VDD power_in Analog 3.3V supply voltage.
20 VREF power_in Bias resistor connection point; connect 4.87 kΩ ±1% resistor to GND for proper operation.
21 GPIO1 bidirectional General purpose I/O for IEEE 1588 event capture or triggering; also CLK_OUT_EN strap pin for clock output enable.
22 GPIO2 bidirectional General purpose I/O for IEEE 1588 event capture or triggering; also PCF_EN strap pin for PHY Control Frame enable.
23 GPIO3 bidirectional General purpose I/O for IEEE 1588 event capture or triggering.
24 CLK_OUT bidirectional Configurable clock output (default 25 MHz synchronized to PTP clock) or external IEEE 1588 reference clock input; also GPIO12.
25 GPIO4 bidirectional General purpose I/O for IEEE 1588 event capture or triggering.
26 LED_ACT output Activity LED output (on when transmit or receive active); also GPIO5 for IEEE 1588 functions (disable LED function via LEDCR register).
27 LED_SPEED/FX_SD output Speed LED output (on at 100 Mb/s, off at 10 Mb/s); also 100BASE-FX Signal Detect input; also GPIO6 for IEEE 1588 functions.
28 LED_LINK output Link LED output (on when link established); also GPIO7 for IEEE 1588 functions (disable LED function via LEDCR register).
29 RESET_N input Active low reset input with internal pullup; assert low for ≥1 µs to initialize device with all registers reset to default.
30 MDIO bidirectional Bi-directional serial management data I/O (requires 1.5 kΩ external pullup resistor or enable internal pullup via register).
31 MDC input Management data clock input for serial management interface; maximum clock rate 25 MHz.
32 IO_VDD power_in I/O supply voltage (3.3V nominal or 2.5V operating range).
33 X2 output Crystal oscillator output; connect to external 25 MHz crystal or leave unconnected when using external CMOS oscillator.
34 X1 input Crystal oscillator input; connect to 25 MHz ±50 ppm crystal (with X2) or external CMOS oscillator source; 50 MHz for RMII Slave mode.
35 IO_CORE_VSS power_in Digital ground.
36 GPIO8 bidirectional General purpose I/O with internal pulldown for IEEE 1588 event capture or triggering.
37 GPIO9 bidirectional General purpose I/O for IEEE 1588 event capture or triggering.
38 RX_CLK output MII receive clock output (25 MHz at 100 Mb/s, 2.5 MHz at 10 Mb/s); outputs 50 MHz in RMII Master mode.
39 RX_DV output MII/RMII receive data valid output (asserted high when valid data present); also MII_MODE strap pin for interface mode selection.
40 CRS/CRS_DV output MII carrier sense or RMII CRS/RX_DV combined output; also LED_CFG strap pin for LED mode configuration.
41 RX_ER output MII receive error output (asserted high for invalid symbols in 100 Mb/s mode); also FX_EN_Z strap pin to enable 100BASE-FX fiber mode.
42 COL output MII collision detection output (asserted high in half-duplex for collision or ~1 µs heartbeat pulse at end of 10BASE-T packet); also PHYAD0 strap bit.
43 RXD_3 output MII receive data bit 3 or RMII bit 1 output synchronous to RX_CLK/X1; also PHYAD1 strap bit for PHY address.
44 RXD_2 output MII receive data bit 2 or RMII bit 0 output synchronous to RX_CLK/X1; also PHYAD2 strap bit for PHY address.
45 RXD_1 output MII receive data bit 1 output synchronous to RX_CLK/X1; also PHYAD3 strap bit for PHY address.
46 RXD_0 output MII receive data bit 0 output synchronous to RX_CLK/X1; also PHYAD4 strap bit for PHY address.
47 IO_VSS power_in Digital ground.
48 IO_VDD power_in I/O supply voltage (3.3V nominal or 2.5V operating range).
49 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package QFN-48-EP(7x7)
Category Interface
Pins 49

CAD (KiCad official)

  • Symbol: DP83630SQX
  • Footprint: Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.15x5.15mm
  • 3D model: QFN-48-EP(7x7) (KiCad packages3D, STEP)
  • 3D model files: dp83630sqx-etched.step / dp83630sqx-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dp83630sqx.step / dp83630sqx.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (138 pp, sha256 a9aca94ad57ffe39, retrieved 2026-10-07, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-4-5-20251001 (text), consensus claude-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).

Datasheet PDF