STM32F042F6  

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.

Key Features

• Core: ARM^®32-bit Cortex^®-M0 CPU, frequency up to 48 MHz
• Memories
  • 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: V_DD= 2 V to 3.6 V
  • Analog supply: V_DDA= from V_DDto 3.6 V
  • Selected I/Os: V_DDIO2= 1.65 V to 3.6 V
  • Power-on/Power down reset (POR/PDR)
  • Programmable voltage detector (PVD)
  • Low power modes: Sleep, Stop, Standby
  • V_BATsupply 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 V_DDIO2
• 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