Datasheet ESP8266EX (Espressif) - 3
| Manufacturer | Espressif |
| Description | With the complete and self-contained Wi-Fi networking capabilities, ESP8266EX can perform either as a standalone application or as the slave to a host MCU |
| Pages / Page | 27 / 3 — Table of Contents |
| Revision | 1.0 |
| File Format / Size | PDF / 602 Kb |
| Document Language | English |
Table of Contents
Text Version of Document
Table of Contents
1. Overview ...1 1.1. Wi-Fi Protocols ...1 1.2. Main Technical Specifications ..3 1.3. Applications 3 .. 2. Pin Definitions ...5 3. Functional Description ..7 3.1. CPU, Memory, and Flash ...7 3.1.1. CPU ..7 3.1.2. Memory ..7 3.1.3. External Flash ..8 3.2. AHB and AHB Blocks 8 ... 3.3. Clock ..8 3.3.1. High Frequency Clock 8 ... 3.3.2. External Clock Requirements ..9 3.4. Radio ..9 3.4.1. Channel Frequencies ...9 3.4.2. 2.4 GHz Receiver ...10 3.4.3. 2.4 GHz Transmitter ...10 3.4.4. Clock Generator ...10 3.5. Wi-Fi ...10 3.6. Power Management ...11 4. Peripheral Interface 13 ... 4.1. General Purpose Input/Output Interface (GPIO) ..13 4.2. Secure Digital Input/Output Interface (SDIO) 13 ... 4.3. Serial Peripheral Interface (SPI/HSPI) ..13 4.3.1. General SPI (Master/Slave) ..14 4.3.2. HSPI (Slave) ...14 4.4. I2C Interface ...14 4.5. I2S Interface ...15 4.6. Universal Asynchronous Receiver Transmitter (UART) 15 .. 4.7. Pulse-Width Modulation (PWM) 16 ... 4.8. IR Remote Control ..16 4.9. ADC (Analog-to-Digital Converter) 17 ... 4.10. LED Light and Button 18 ...
1. Overview ...1 1.1. Wi-Fi Protocols ...1 1.2. Main Technical Specifications ..3 1.3. Applications 3 .. 2. Pin Definitions ...5 3. Functional Description ..7 3.1. CPU, Memory, and Flash ...7 3.1.1. CPU ..7 3.1.2. Memory ..7 3.1.3. External Flash ..8 3.2. AHB and AHB Blocks 8 ... 3.3. Clock ..8 3.3.1. High Frequency Clock 8 ... 3.3.2. External Clock Requirements ..9 3.4. Radio ..9 3.4.1. Channel Frequencies ...9 3.4.2. 2.4 GHz Receiver ...10 3.4.3. 2.4 GHz Transmitter ...10 3.4.4. Clock Generator ...10 3.5. Wi-Fi ...10 3.6. Power Management ...11 4. Peripheral Interface 13 ... 4.1. General Purpose Input/Output Interface (GPIO) ..13 4.2. Secure Digital Input/Output Interface (SDIO) 13 ... 4.3. Serial Peripheral Interface (SPI/HSPI) ..13 4.3.1. General SPI (Master/Slave) ..14 4.3.2. HSPI (Slave) ...14 4.4. I2C Interface ...14 4.5. I2S Interface ...15 4.6. Universal Asynchronous Receiver Transmitter (UART) 15 .. 4.7. Pulse-Width Modulation (PWM) 16 ... 4.8. IR Remote Control ..16 4.9. ADC (Analog-to-Digital Converter) 17 ... 4.10. LED Light and Button 18 ...