The STM32F042x4/x6 microcontrollers incorporate the high-performance ARM®Cortex®-M0 32-bit RISC core operating at up to 48 MHz frequency, high-speed embedded memories (up to 32 Kbytes of Flash memory and 6 Kbytes of SRAM), and an extensive range of enhanced peripherals and I/Os. All devices offer standard communication interfaces (one I2C, two SPIs/one I2S, one HDMI CEC and two USARTs), one USB Full-speed device (crystal-less), one CAN, one 12-bit ADC, four 16-bit timers, one 32-bit timer and an advanced-control PWM timer.
The STM32F042x4/x6 microcontrollers operate in the -40 to +85 °C and -40 to +105 °C temperature ranges, from a 2.0 to 3.6 V power supply. A comprehensive set of power-saving modes allows the design of low-power applications.
The STM32F042x4/x6 microcontrollers include devices in seven different packages ranging from 20 pins to 48 pins with a die form also available upon request. Depending on the device chosen, different sets of peripherals are included.
These features make the STM32F042x4/x6 microcontrollers suitable for a wide range of applications such as application control and user interfaces, hand-held equipment, A/V receivers and digital TV, PC peripherals, gaming and GPS platforms, industrial applications, PLCs, inverters, printers, scanners, alarm systems, video intercoms and HVACs.
- Core: ARM®32-bit Cortex®-M0 CPU, frequency up to 48 MHz
- 16 to 32 Kbytes of Flash memory
- 6 Kbytes of SRAM with HW parity
- CRC calculation unit
- Reset and power management
- Digital and I/Os supply: VDD= 2 V to 3.6 V
- Analog supply: VDDA= from VDDto 3.6 V
- Selected I/Os: VDDIO2= 1.65 V to 3.6 V
- Power-on/Power down reset (POR/PDR)
- Programmable voltage detector (PVD)
- Low power modes: Sleep, Stop, Standby
- VBATsupply for RTC and backup registers
- Clock management
- 4 to 32 MHz crystal oscillator
- 32 kHz oscillator for RTC with calibration
- Internal 8 MHz RC with x6 PLL option
- Internal 40 kHz RC oscillator
- Internal 48 MHz oscillator with automatic trimming based on ext. synchronization
- Up to 38 fast I/Os
- All mappable on external interrupt vectors
- Up to 24 I/Os with 5 V tolerant capability and 8 with independent supply VDDIO2
- 5-channel DMA controller
- One 12-bit, 1.0 μs ADC (up to 10 channels)
- Conversion range: 0 to 3.6 V
- Separate analog supply: 2.4 V to 3.6 V
- Up to 14 capacitive sensing channels for touchkey, linear and rotary touch sensors
- Calendar RTC with alarm and periodic wakeup from Stop/Standby
- Nine timers
- One 16-bit advanced-control timer for six channel PWM output
- One 32-bit and four 16-bit timers, with up to four IC/OC, OCN, usable for IR control decoding
- Independent and system watchdog timers
- SysTick timer
- Communication interfaces
- One I2C interface supporting Fast Mode Plus (1 Mbit/s) with 20 mA current sink, SMBus/PMBus and wakeup
- Two USARTs supporting master synchronous SPI and modem control, one with ISO7816 interface, LIN, IrDA, auto baud rate detection and wakeup feature
- Two SPIs (18 Mbit/s) with 4 to 16 programmable bit frames, one with I2S interface multiplexed
- CAN interface
- USB 2.0 full-speed interface, able to run from internal 48 MHz oscillator and with BCD and LPM support
- HDMI CEC, wakeup on header reception
- Serial wire debug (SWD)
- 96-bit unique ID
- All packages ECOPACK®2
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