4-Bit/8-Bit MCU

The medium-density STM8AL313x/4x/6x and STM8AL3L4x/6x devices are members of the STM8AL automotive ultra-low-power 8-bit family. The medium-density STM8AL3xxx family operates from 1.8 V to 3.6 V (down to 1.65 V at power down) and is available in the -40 to +85°C and -40 to +125°C temperature ranges.The medium-density STM8AL3xxx ultra-low-power family features the 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 medium-density STM8AL3xxx microcontrollers feature embedded data EEPROM and low power low-voltage single-supply program Flash memory.They incorporate an extensive range of enhanced I/Os and peripherals.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.Two different packages are proposed which include 32 and 48 pins. Depending on the device chosen, different sets of peripherals are included.All STM8AL3xxx ultra-low-power products are based on the same architecture with the same memory mapping and a coherent pinout.

Operating conditions

Operating power supply range 1.8 V to 3.6 V (down to 1.65 V at power down)

Temperature range: - 40 °C to 85 or 125 °C

Low power features

Five low-power modes: Wait, low-power run (5.1 µA), low-power wait (3 µA), active-halt with full RTC (1.3 µA), halt with PDR (400 nA)

Run from Flash: 195 µA/MHz + 440 µA

Run from RAM: 90 µA/MHz + 400 µA

Ultra-low leakage per I/0: 50 nA

Fast wakeup from Halt: 4.7 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 5 selectable thresholds

Ultra-low power POR/PDR

Programmable voltage detector (PVD)

Clock management

1 to 16 MHz crystal oscillator

32 kHz crystal oscillator

Internal 16 MHz factory-trimmed RC

Internal 38 kHz low consumption RC

Clock security system

Low power RTC

BCD calendar with alarm interrupt

Auto-wakeup from Halt (0.95 ppm resolution) w/ periodic interrupt

LCD: up to 4x28 segments w/ step-up converter

Memories

Program memory: up to 32 Kbyte Flash program; data retention 20 years at 55 °C

Data memory: up to 1 Kbyte true data EEPROM; endurance 300 kcycle

RAM: up to 2 Kbyte

DMA

Four channels; supported peripherals: ADC, DAC, SPI, I2C, USART, timers

One channel for memory-to-memory

12-bit DAC with output buffer

12-bit ADC up to 1 Mbps/25 channels

Temp sensor and internal reference voltage

Two ultra-low-power comparators

One with fixed threshold and one rail to rail

Wakeup capability

Timers

Two 16-bit timers with two channels (used as IC, OC, PWM), quadrature encoder

One 16-bit advanced control timer with three channels, supporting motor control

One 8-bit timer with 7-bit prescaler

Two watchdogs: one window, one independent

Beeper timer with 1-, 2- or 4 kHz frequencies

Communication interfaces

Synchronous serial interface (SPI)

Fast I2C 400 kHz SMBus and PMBus

USART (ISO 7816 interface, IrDA, LIN 1.3, LIN 2.0)

Up to 41 I/Os, all mappable on interrupt vectors

Development support

Fast on-chip programming and non intrusive debugging with SWIM

Bootloader using USART

96-bit unique ID

AEC-Q100 grade 1 conform qualification