Overview
The STM32F042C4T6 is a microcontroller from STMicroelectronics, part of the STM32F042x4/x6 series. It features the high-performance ARM® 32-bit Cortex®-M0 CPU, operating at frequencies up to 48 MHz. This microcontroller is equipped with high-speed embedded memories, including up to 32 Kbytes of Flash memory and 6 Kbytes of SRAM with hardware parity. The device offers a wide range of enhanced peripherals and I/Os, making it suitable for various applications.
The STM32F042C4T6 operates within a temperature range of -40 to +85 °C (or -40 to +105 °C for certain packages) and is powered by a 2.0 to 3.6 V supply. It includes multiple power-saving modes, enabling the design of low-power applications. The microcontroller is available in several package options, including LQFP 48-pin and UFQFPN 48-pin packages, all of which are ECOPACK2 compliant.
Key Specifications
| Specification | Details |
|---|---|
| Core | ARM® 32-bit Cortex®-M0 CPU, up to 48 MHz |
| Memories | 16 to 32 Kbytes of Flash memory, 6 Kbytes of SRAM with HW parity |
| Power Supply | Digital and I/Os supply: VDD = 2 V to 3.6 V, Analog supply: VDDA = from VDD to 3.6 V |
| Temperature Range | -40 to +85 °C (or -40 to +105 °C for certain packages) |
| Clock Management | 4 to 32 MHz crystal oscillator, 32 kHz oscillator for RTC, Internal 8 MHz RC with x6 PLL option, Internal 40 kHz RC oscillator, Internal 48 MHz oscillator |
| I/Os | Up to 38 fast I/Os, up to 24 I/Os with 5 V tolerant capability and 8 with independent supply VDDIO2 |
| ADC | One 12-bit, 1.0 μs ADC (up to 10 channels), Conversion range: 0 to 3.6 V |
| Timers | Nine timers including one 32-bit and four 16-bit timers, one 16-bit advanced-control timer for six channel PWM output |
| Communication Interfaces | One I2C, two SPIs (one with I2S), two USARTs, CAN, USB 2.0 full-speed interface, HDMI CEC |
| Package | LQFP 48 7x7x1.4 mm, UFQFPN 48 7x7x0.55 mm |
Key Features
- High-performance ARM® 32-bit Cortex®-M0 CPU with up to 48 MHz frequency
- High-speed embedded memories: up to 32 Kbytes of Flash memory and 6 Kbytes of SRAM with hardware parity
- Extensive range of enhanced peripherals and I/Os
- Multiple power-saving modes: Sleep, Stop, Standby
- VBAT supply for RTC and backup registers
- 5-channel DMA controller
- Up to 14 capacitive sensing channels for touchkey, linear, and rotary touch sensors
- Calendar RTC with alarm and periodic wakeup from Stop/Standby
- Communication interfaces: I2C, SPI, USART, CAN, USB 2.0 full-speed, HDMI CEC
- Serial wire debug (SWD) and 96-bit unique ID
Applications
- 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
Q & A
- What is the core of the STM32F042C4T6 microcontroller?
The core is an ARM® 32-bit Cortex®-M0 CPU, operating at frequencies up to 48 MHz.
- How much Flash and SRAM memory does the STM32F042C4T6 have?
It has 16 to 32 Kbytes of Flash memory and 6 Kbytes of SRAM with hardware parity.
- What is the operating temperature range of the STM32F042C4T6?
The operating temperature range is -40 to +85 °C (or -40 to +105 °C for certain packages).
- What power-saving modes are available on the STM32F042C4T6?
The device includes Sleep, Stop, and Standby power-saving modes.
- What communication interfaces does the STM32F042C4T6 support?
It supports I2C, SPI, USART, CAN, USB 2.0 full-speed, and HDMI CEC interfaces.
- Does the STM32F042C4T6 have any capacitive sensing capabilities?
Yes, it has up to 14 capacitive sensing channels for touchkey, linear, and rotary touch sensors.
- What is the purpose of the VBAT supply in the STM32F042C4T6?
The VBAT supply is for the RTC and backup registers.
- How many timers does the STM32F042C4T6 have?
The device includes nine timers, including one 32-bit and four 16-bit timers, and one 16-bit advanced-control timer for six channel PWM output.
- What is the role of the DMA controller in the STM32F042C4T6?
The 5-channel DMA controller manages data transfer between peripherals and memory.
- Is the STM32F042C4T6 RoHS compliant?
Yes, the STM32F042C4T6 is RoHS compliant and comes in ECOPACK2 packages.
