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ESP8266 Chip Package – QFN32 – Dimensions DatasheetĪ lot of ESP8266 modules are available in the market made by Espressif and 3ed party manufactures like AI-Thinker etc. The chip comes in QFN32 package, dimensions are given below. Used to provide BT clock input, Connect to crystal oscillator outputġ2KΩ resistor is connected to this pin and ground GPIO1, SPI_CS1, UART Tx during flash programming GPIO3, UART Rx during flash programming, I2SO_DATA GPIO8, Connect to SD_D1 (Series R: 200Ω), SPI_MOSI GPIO7, Connect to SD_D0 (Series R: 200Ω), SPI_MSIO GPIO6, Connect to SD_CLK (Series R: 200Ω), SPI_CLK

GPIO11, Connect to SD_CMD (Series R: 200Ω), SPI_CS0 GPIO10, Connect to SD_D3 (Series R: 200Ω), SPIWP, HSPIWP GPIO9, Connect to SD_D2 (Series R: 200Ω), SPIHD, HSPIHD GPIO2, UART1_TXD (flash programming UART Tx), I2C_SDA, I2SO_WS GPIO15, HSPICS, UART0_RTS, I2SO_BCK, PWM1 GPIO13, HSPI_MOSI, I2SI_BCK, UART0_CTS, Reset Button GPIO12, HSPI_MISO, I2SI_DATA, PWM0, IR Tx, Link LED Functions of each pin is listed below.Īn ADC Input or can be used to check voltage of VDD3P3 The chips comes in a 32 + 1 pin QFN package.

Tensilica Xtensa LX106 32 bit RISC CPU running at 80 MHz.

Certified by FCC, CE, TELEC, WiFi Alliance and SRRC.

Deep sleep power is less than 10μA and power down leakage current is less than 5μA.

Standby power consumption is less than 1mW.

Up to +20 dBm output power in 802.11b mode.

Wake up and transmit packets in less than 2mS.

A-MPDU & A-MSDU aggregation and 0.4s guard interval.

SDIO 2.0, (H) SPI, UART, I 2C, I 2S, IR Remote Control, PWM, GPIO.

Smart Link function supports for both Android and iOS devices.

Supports space diversity / antenna diversity.

Have internal PLL, regulators and power management units.

Built in TR switch, balun, LNA, power amplifier and matching network.

Supports Station, Soft Access Point, Station + Soft Access Point modes.

Integrated 10 bit analog to digital converter.

Integrated low power 32 bit microcontroller.

ESP8266 – Block Diagram Features of ESP8266

We can also integrate it with another application processor if required by using SPI/SDIO or I 2C/UART interface. It is a self contained WiFi networking solution, which means that we can store and run the application in it without the aid of any external processors. ESP8266 – WiFi SoCĮSP8266 belongs to Espressif System’s Smart Connectivity Platform (ESCP) which is a set of high performance, high integration wireless SoC (System on Chip) intended for power and space constrained mobile platform designers. This is the one of the most popular and low cost solution for connecting ‘Things’ to internet via WiFi. As you might already know, nowadays IoT (Internet of Things) is an emerging field. ESP8266 is the most popular and low cost WiFi SoC with TCP/IP stack and a low power 32 bit microcontroller manufactured by Espressif, a Shanghai based Chinese manufacturer.