| PartNumber | ESP8285 | ESP8266EX | ESP8266-EVB-BAT-BOX |
| Description | RF System on a Chip - SoC SMD IC ESP8285, 1MB SPI flash inside, QFN32-pin, 5*5mm | RF System on a Chip - SoC SMD IC ESP8266EX, QFN32-pin, 5*5mm | WiFi Development Tools (802.11) Evaluation Board and box for ESP8266 |
| Manufacturer | Espressif | Espressif | Olimex Ltd. |
| Product Category | RF System on a Chip - SoC | RF System on a Chip - SoC | WiFi Development Tools (802.11) |
| RoHS | Y | Y | Y |
| Type | Wi-Fi | Wi-Fi | - |
| Core | L106, RSIC | L106 | - |
| Operating Frequency | 2.4 GHz to 2.5 GHz | 2.4 GHz to 2.5 GHz | - |
| Maximum Data Rate | 54 Mb/s | 72.2 Mb/s | - |
| Output Power | 20 dBm | 20 dBm | - |
| Sensitivity | - 72 dBm | - 72 dBm | - |
| Operating Supply Voltage | 2.7 V to 3.6 V | 2.5 V to 3.6 V | - |
| Supply Current Receiving | 56 mA | 56 mA | - |
| Supply Current Transmitting | 170 mA | 170 mA | - |
| Program Memory Size | 1 MB | 1 MB | - |
| Package / Case | QFN-32 | QFN-32 | - |
| Length | 5 mm | 5 mm | - |
| Program Memory Type | Flash | Flash | - |
| Series | ESP8285 | ESP8266 | - |
| Width | 5 mm | 5 mm | - |
| Brand | Espressif Systems | Espressif Systems | Olimex Ltd. |
| Data RAM Size | 50 kB | 50 kB | - |
| Data RAM Type | SRAM | SRAM | - |
| Interface Type | ADC, GPIO, I2C, I2S, PWM, SDIO, SPI, UART | ADC, GPIO, I2C, I2S, SDIO, SPI, UART | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Data Bus Width | 16 bit/32 bit | 32 bit | - |
| Maximum Clock Frequency | 160 MHz | 160 MHz | - |
| Maximum Operating Temperature | + 125 C | + 125 C | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Moisture Sensitive | Yes | Yes | - |
| Product Type | RF System on a Chip - SoC | RF System on a Chip - SoC | WiFi Development Tools |
| Factory Pack Quantity | 5000 | 5000 | 12 |
| Subcategory | Wireless & RF Integrated Circuits | Wireless & RF Integrated Circuits | Development Tools |
| Unit Weight | 0.002473 oz | 0.002416 oz | - |