The STM32F042F6P6TR from STMicroelectronics is a mainstream 32-bit Arm Cortex-M0 microcontroller operating at up to 48MHz. It integrates 32KB of Flash memory and 6KB of SRAM with hardware parity, providing a compact MCU platform for embedded applications requiring USB, CAN and general-purpose control functions.
The MCU operates from a 2.0V to 3.6V supply and supports Sleep, Stop and Standby low-power modes. Clock resources include internal 8MHz and 40kHz RC oscillators plus an internal 48MHz oscillator with automatic trimming, allowing the USB Full-Speed peripheral to operate without an external high-speed crystal in suitable designs.
Analog functionality includes a 12-bit ADC. For the exact STM32F042F6P6TR configuration, ST lists 9 ADC channels, while the STM32F042 ADC architecture supports conversion times as low as approximately 1.0µs.
Communication peripherals include USB 2.0 Full-Speed Device, CAN, one I²C interface, two USARTs, and SPI/I²S resources. The I²C peripheral supports Fast Mode Plus up to 1Mbit/s, while SPI operation supports rates up to 18Mbit/s. USB operation includes BCD and LPM support.
Timer resources include one 16-bit advanced-control PWM timer, one 32-bit timer and four general-purpose 16-bit timers, together with independent and system watchdog timers and SysTick. The advanced timer supports up to six PWM output channels for control-oriented applications.
Additional features include a 5-channel DMA controller, RTC, CRC calculation unit, HDMI CEC interface, 96-bit unique ID and Serial Wire Debug. ST lists 16 high-current I/Os for the exact STM32F042F6P6TR configuration.
The exact STM32F042F6P6TR is supplied in a 20-pin TSSOP package, rated as Industrial Grade for -40°C to +85°C operation. The TR suffix specifies tape-and-reel packaging, and the package is ECOPACK2 / RoHS compliant. ST currently lists the exact part as Active and in volume production.
Key Specifications:
- Brand: STMicroelectronics
- Part Number: STM32F042F6P6TR
- Family: STM32F0 / STM32F042
- Product Type: 32-Bit Microcontroller
- CPU Core: Arm Cortex-M0
- Maximum CPU Frequency: 48MHz
- Flash Memory: 32KB
- SRAM: 6KB
- SRAM Hardware Parity: Yes
- Supply Voltage: 2.0V to 3.6V
- ADC: 1 × 12-Bit
- ADC Channels: 9 for Exact Device
- ADC Conversion Time: Down to Approx. 1.0µs
- DMA: 5 Channels
- USB: USB 2.0 Full-Speed Device
- Crystal-Less USB Operation: Supported
- CAN: CAN 2.0
- I²C: 1
- I²C Fast Mode Plus: Up to 1Mbit/s
- USART: 2
- SPI: Supported
- SPI Speed: Up to 18Mbit/s
- I²S: Supported
- HDMI CEC: Yes
- 16-Bit Timers: 5 Including Advanced Timer
- 32-Bit Timers: 1
- Advanced PWM Timer: Yes
- RTC: Yes
- Watchdogs: Yes
- CRC Unit: Yes
- Unique ID: 96-Bit
- Debug Interface: SWD
- High-Current I/Os: 16
- Low-Power Modes: Sleep / Stop / Standby
- Operating Temperature: -40°C to +85°C
- Grade: Industrial
- Package: TSSOP-20
- Pin Count: 20
- Mounting Type: SMD / SMT
- Packaging: Tape & Reel
- RoHS Grade: ECOPACK2
- Product Status: Active / Volume Production.
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