STM8L052R8 is an 8-bit ultralow power MCU with 64-KB Flash, 256-bytes data EEPROM, RTC, LCD, timers, USART, I2C, SPI, ADC, and other features.
This document is a production data datasheet for the STM8L052R8, an 8-bit ultra-low power microcontroller from STMicroelectronics. The device features an advanced STM8 core with a maximum frequency of 16 MHz, Harvard architecture, and up to 40 external interrupt sources.
Key specifications include 64 KB of Flash program memory, 256 bytes of data EEPROM with ECC, and 4 KB of RAM. The microcontroller supports various communication interfaces including two SPI interfaces, Fast I²C (SMBus/PMBus), three USARTs, and an IrDA interface. It also includes a 12-bit ADC capable of up to 1 Msps with 28 channels.
| Operating power supply | 1.8 V to 3.6 V |
|---|---|
| Temperature range | -40 °C to 85 °C |
| Flash memory size | 64 KB |
| Data EEPROM size | 256 bytes |
| RAM size | 4 KB |
| Maximum frequency | 16 MHz |
| ADC resolution | 12-bit |
| ADC sampling rate | up to 1 Msps |
The device supports five low power modes: Wait, Low power run (5.9 LA), Low power wait (3 LA), Active-halt with full RTC (1.4 WA), and Halt (400 nA).
The dynamic power consumption is 200 LA/MHz plus 330 LA.
The microcontroller supports 32 kHz and 1 to 16 MHz crystal oscillators, an internal 16 MHz factory-trimmed RC, a 38 kHz low consumption RC, and a Clock security system.