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STM8L162R8：Ultra-low-power 8-bit MCU with 64 Kbytes Flash, 16 MHz CPU, integrated EEPROM, AES

The high-density STM8L162x8 ultra-low-power devices feature an enhanced STM8 CPU core providing increased processing power (up to 16 MIPS at 16 MHz) while maintaining the advantages of a CISC architecture with improved code density, a 24-bit linear addressing space and an optimized architecture for low-power operations.

The family includes an integrated debug module with a hardware interface (SWIM) which allows non-intrusive in-application debugging and ultrafast Flash programming.

All high-density STM8L162x8 microcontrollers feature embedded data EEPROM and low-power low-voltage single-supply program Flash memory.

The devices incorporate an extensive range of enhanced I/Os and peripherals, a 12-bit ADC, two DACs, two comparators, a real-time clock, AES, 8x40 or 4x44-segment LCD, four 16-bit timers, one 8-bit timer, as well as standard communication interfaces such as two SPIs, an I²C interface, and three USARTs. The modular design of the peripheral set allows the same peripherals to be found in different ST microcontroller families including 32-bit families. This makes any transition to a different family very easy, and simplified even more by the use of a common set of development tools.

Key Features

• Operating conditions
  • Operating power supply: 1.65 to 3.6 V (without BOR), 1.8 to 3.6 V (with BOR)
  • Temp. range: -40 to 85, 105 or 125 °C
• Low-power features
  • 5 low-power modes: Wait, Low-power run, Low-power wait, Active-halt with full RTC, Halt
  • Ultra low leakage per I/0: 50 nA
  • Fast wake up from Halt mode: 5 μs
• Advanced STM8 core
  • Harvard architecture and 3-stage pipeline
  • Max freq: 16 MHz, 16 CISC MIPS peak
  • Up to 40 external interrupt sources
• Reset and supply management
  • Low-power, ultra safe BOR reset with five selectable thresholds
  • Ultra-low-power POR/PDR
  • Programmable voltage detector (PVD)
• Clock management
  • 32 kHz and 1-16 MHz crystal oscillators
  • Internal 16 MHz factory-trimmed RC and 38 kHz low consumption RC
  • Clock security system
• Low-power RTC
  • BCD calendar with alarm interrupt,
  • Digital calibration with +/- 0.5ppm accuracy
  • LSE security system
  • Auto wake up from Halt w/periodic interrupt
  • Advanced anti-tamper detection
• LCD: 8x40 or 4x44 w/ step-up converter
• DMA
  • 4 ch. for ADC, AES, DACs, SPIs, I2 C, USARTs, Timers, 1 ch. for memory-to-memory
• AES encryption hardware accelerator
• 2x12-bit DAC (dual mode) with output buffer
• 12-bit ADC up to 1 Msps/28 channels
  • Temp. sensor and internal ref. voltage
• Memories
  • Up to 64 KB of Flash memory with up to 2 KB of data EEPROM with ECC and RWW
  • Flexible write/read protection modes
  • Up to 4 KB of RAM
• 2 ultra-low-power comparators
  • 1 with fixed threshold and 1 rail to rail
  • Wake up capability
• Timers
  • Three 16-bit timers with 2 channels (IC, OC, PWM), quadrature encoder
  • One 16-bit advanced control timer with 3 channels, supporting motor control
  • One 8-bit timer with 7-bit prescaler
  • One window, one independent watchdog
  • Beeper timer with 1, 2 or 4 kHz frequencies
• Communication interfaces
  • Two synchronous serial interface (SPI)
  • Fast I2 C 400 kHz SMBus and PMBus
  • Three USARTs (ISO 7816 interface + IrDA)
• Up to 67 I/Os, all mappable on interrupt vectors
• Up to 16 capacitive sensing channels supporting touchkey, proximity, linear touch and rotary touch sensors
• Fast on-chip programming and non-intrusive debugging with SWIM, Bootloader using USART
• 96-bit unique ID

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