Realtek RTL8710 | Espressif ESP8266 | |
Package | QFN-48 (6×6 mm) | QFN-32 (5×5 mm) |
CPU | ARM Cortex M3 @ 166 MHz | Tensilica LX106 @ 80 / 160 MHz |
RAM | 48KB available to user | 36KB available to user |
Flash | 1MB Built-in | 1, 2, 4, 8 or 16 MB |
WiFi | 802.11n up to 150 Mbps, 802.11g up to 54 Mbps | 802.11n up to 65 Mbps, 802.11g up to 54 Mbps |
GPIO | Up to 21 | Up to 17 |
I2C | Up to 3 | Up to 1 |
PCM | Up to 2 | None |
PWM | Up to 4 | |
UART | 2x high-speed UART, 1x low-speed UART | Up to 2x UART |
Power | Voltage: 3.0 to 3.6V; Current: 80 mA | |
Temperature range | -40 to 125 °C | |
Standard certifications | FCC/CE/TELEC/SRRC/ WiFi Alliance | FCC/CE/TELEC/SRRC |