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ESP8266EX
Highly integrated Wi-Fi SoC, QFN-32
Schematic Symbol
Pin Configuration (33 pins)
| Pin | Name | Type |
|---|---|---|
| 1 | VDDA | power_in |
| 2 | LNA | bidirectional |
| 3 | VDD3P3 | power_in |
| 4 | VDD3P3 | power_in |
| 5 | VDD_RTC | power_in |
| 6 | TOUT | input |
| 7 | CHIP_PU | input |
| 8 | XPD_DCDC | bidirectional |
| 9 | MTMS | bidirectional |
| 10 | MTDI | bidirectional |
| 11 | VDDPST | power_in |
| 12 | MTCK | bidirectional |
| 13 | MTDO | bidirectional |
| 14 | GPIO2 | bidirectional |
| 15 | GPIO0 | bidirectional |
| 16 | GPIO4 | bidirectional |
| 17 | VDDPST | power_in |
| 18 | SDIO_DATA_2 | bidirectional |
| 19 | SDIO_DATA_3 | bidirectional |
| 20 | SDIO_CMD | bidirectional |
| 21 | SDIO_CLK | bidirectional |
| 22 | SDIO_DATA_0 | bidirectional |
| 23 | SDIO_DATA_1 | bidirectional |
| 24 | GPIO5 | bidirectional |
| 25 | U0RXD | bidirectional |
| 26 | U0TXD | bidirectional |
| 27 | XTAL_OUT | bidirectional |
| 28 | XTAL_IN | bidirectional |
| 29 | VDDD | power_in |
| 30 | VDDA | power_in |
| 31 | RES12K | input |
| 32 | ~{EXT_RSTB} | input |
| 33 | GND | power_in |
Footprint
ConfirmedPackage_DFN_QFN/QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm
Pad Layout
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33
Pads (42)
| Number | Type |
|---|---|
| — | smd |
| — | smd |
| — | smd |
| — | smd |
| — | smd |
| — | smd |
| — | smd |
| — | smd |
| — | smd |
| 1 | smd |
| 2 | smd |
| 3 | smd |
| 4 | smd |
| 5 | smd |
| 6 | smd |
| 7 | smd |
| 8 | smd |
| 9 | smd |
| 10 | smd |
| 11 | smd |
| 12 | smd |
| 13 | smd |
| 14 | smd |
| 15 | smd |
| 16 | smd |
| 17 | smd |
| 18 | smd |
| 19 | smd |
| 20 | smd |
| 21 | smd |
| 22 | smd |
| 23 | smd |
| 24 | smd |
| 25 | smd |
| 26 | smd |
| 27 | smd |
| 28 | smd |
| 29 | smd |
| 30 | smd |
| 31 | smd |
| 32 | smd |
| 33 | smd |