component
ESP32-PICO-D4
Public Made by Adomby adom
Espressif Systems RF Transceiver ICs, QFN-48-EP(7x7). Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownESP32-PICO-D4
Espressif Systems · RF Transceiver ICs · QFN-48-EP(7x7)
ESP32-PICO-D4 from Espressif Systems, in a QFN-48-EP(7x7). 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 | VDDA | power_in | Analog power supply 2.3 V to 3.6 V. |
| 2 | LNA_IN | bidirectional | RF input/output. |
| 3 | VDDA3P3 | power_in | Analog power supply 2.3 V to 3.6 V. |
| 4 | VDDA3P3 | power_in | Analog power supply 2.3 V to 3.6 V. |
| 5 | SENSOR_VP | input | GPIO36/ADC1_CH0/RTC_GPIO0 input. |
| 6 | SENSOR_CAPP | input | GPIO37/ADC1_CH1/RTC_GPIO1 input. |
| 7 | SENSOR_CAPN | input | GPIO38/ADC1_CH2/RTC_GPIO2 input. |
| 8 | SENSOR_VN | input | GPIO39/ADC1_CH3/RTC_GPIO3 input. |
| 9 | EN | input | Module enable; high enables module, low disables; cannot be left floating. |
| 10 | IO34 | input | GPIO34/ADC1_CH6/RTC_GPIO4 input. |
| 11 | IO35 | input | GPIO35/ADC1_CH7/RTC_GPIO5 input. |
| 12 | IO32 | bidirectional | GPIO32/32K_XP crystal input/ADC1_CH4/TOUCH9/RTC_GPIO9. |
| 13 | IO33 | bidirectional | GPIO33/32K_XN crystal output/ADC1_CH5/TOUCH8/RTC_GPIO8. |
| 14 | IO25 | bidirectional | GPIO25/DAC_1/ADC2_CH8/RTC_GPIO6/EMAC_RXD0. |
| 15 | IO26 | bidirectional | GPIO26/DAC_2/ADC2_CH9/RTC_GPIO7/EMAC_RXD1. |
| 16 | IO27 | bidirectional | GPIO27/ADC2_CH7/TOUCH7/RTC_GPIO17/EMAC_RX_DV. |
| 17 | IO14 | bidirectional | GPIO14/ADC2_CH6/TOUCH6/RTC_GPIO16/MTMS/HSPICLK/HS2_CLK/SD_CLK/EMAC_TXD2. |
| 18 | IO12 | bidirectional | GPIO12/ADC2_CH5/TOUCH5/RTC_GPIO15/MTDI/HSPIQ/HS2_DATA2/SD_DATA2/EMAC_TXD3; strapping pin for LDO voltage. |
| 19 | VDD3P3_RTC | power_in | RTC IO power supply 3.0 V to 3.6 V. |
| 20 | IO13 | bidirectional | GPIO13/ADC2_CH4/TOUCH4/RTC_GPIO14/MTCK/HSPID/HS2_DATA3/SD_DATA3/EMAC_RX_ER. |
| 21 | IO15 | bidirectional | GPIO15/ADC2_CH3/TOUCH3/RTC_GPIO13/MTDO/HSPICS0/HS2_CMD/SD_CMD/EMAC_RXD3; strapping pin for boot printing. |
| 22 | IO2 | bidirectional | GPIO2/ADC2_CH2/TOUCH2/RTC_GPIO12/HSPIWP/HS2_DATA0/SD_DATA0; strapping pin for boot mode. |
| 23 | IO0 | bidirectional | GPIO0/ADC2_CH1/TOUCH1/RTC_GPIO11/CLK_OUT1/EMAC_TX_CLK; strapping pin for SPI boot mode. |
| 24 | IO4 | bidirectional | GPIO4/ADC2_CH0/TOUCH0/RTC_GPIO10/HSPIHD/HS2_DATA1/SD_DATA1/EMAC_TX_ER. |
| 25 | IO16 | bidirectional | GPIO16/HS1_DATA4/U2RXD/EMAC_CLK_OUT; dedicated to embedded flash. |
| 26 | VDD_SDIO | power_in | SDIO and embedded flash power supply; powered from VDD3P3_RTC through ~6Ω resistor. |
| 27 | IO17 | bidirectional | GPIO17/HS1_DATA5/U2TXD/EMAC_CLK_OUT_180; dedicated to embedded flash. |
| 28 | SD2 | bidirectional | GPIO9/SD_DATA2/SPIHD/HS1_DATA2/U1RXD; dedicated to embedded flash. |
| 29 | SD3 | bidirectional | GPIO10/SD_DATA3/SPIWP/HS1_DATA3/U1TXD; dedicated to embedded flash; recommended for external PSRAM chip select. |
| 30 | CMD | bidirectional | GPIO11/SD_CMD/SPICS0/HS1_CMD/U1RTS; dedicated to embedded flash. |
| 31 | CLK | bidirectional | GPIO6/SD_CLK/SPICLK/HS1_CLK/U1CTS; dedicated to embedded flash. |
| 32 | SD0 | bidirectional | GPIO7/SD_DATA0/SPIQ/HS1_DATA0/U2RTS; dedicated to embedded flash. |
| 33 | SD1 | bidirectional | GPIO8/SD_DATA1/SPID/HS1_DATA1/U2CTS; dedicated to embedded flash. |
| 34 | IO5 | bidirectional | GPIO5/VSPICS0/HS1_DATA6/EMAC_RX_CLK; strapping pin for SDIO slave timing. |
| 35 | IO18 | bidirectional | GPIO18/VSPICLK/HS1_DATA7. |
| 36 | IO23 | bidirectional | GPIO23/VSPID/HS1_STROBE. |
| 37 | VDD3P3_CPU | power_in | CPU IO power supply 1.8 V to 3.6 V. |
| 38 | IO19 | bidirectional | GPIO19/VSPIQ/U0CTS/EMAC_TXD0. |
| 39 | IO22 | bidirectional | GPIO22/VSPIWP/U0RTS/EMAC_TXD1. |
| 40 | U0RXD | bidirectional | GPIO3/U0RXD/CLK_OUT2; UART receive for debug. |
| 41 | U0TXD | bidirectional | GPIO1/U0TXD/CLK_OUT3/EMAC_RXD2; UART transmit for debug. |
| 42 | IO21 | bidirectional | GPIO21/VSPIHD/EMAC_TX_EN. |
| 43 | VDDA | power_in | Analog power supply 2.3 V to 3.6 V. |
| 44 | XTAL_N_NC | unconnected | No connection; internal crystal oscillator negative. |
| 45 | XTAL_P_NC | unconnected | No connection; internal crystal oscillator positive. |
| 46 | VDDA | power_in | Analog power supply 2.3 V to 3.6 V. |
| 47 | CAP2_NC | unconnected | No connection; internal capacitor. |
| 48 | CAP1_NC | unconnected | No connection; internal capacitor. |
| 49 | GND | power_in | Thermal ground pad (exposed die pad). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Espressif Systems |
| Package | QFN-48-EP(7x7) |
| Category | RF And Wireless |
| Pins | 49 |
CAD (KiCad official)
- Symbol:
ESP32-PICO-D4 - 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:
esp32-pico-d4-etched.step/esp32-pico-d4-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);esp32-pico-d4.step/esp32-pico-d4.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Espressif Systems datasheet (25 pp, sha256
6f1313aad2dc9dca, retrieved 2026-09-22, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).