STMicroelectronics STM32F0 series 32-bit ARM Cortex-M0 MCU, STM32F042C4T6, 48 MHz, 16 KB Flash, 6 KB RAM, USB 2.0 FS, CAN 2.0B, 48-LQFP, -40 to 85 °C.
| Parameter | Value |
|---|---|
| Series | STM32F0 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.65V ~ 3.6V |
| Operating temperature | -40°C ~ 85°C (TA) |
| Speed | 48MHz |
| Package | Tray |
| RAM size | 6K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | DMA, I²S, POR, PWM, WDT |
| Connectivity | CANbus, HDMI-CEC, I²C, IrDA, LINbus, SPI, UART/USART, USB |
| Number of i (O) | 38 |
| Core processor | ARM® Cortex®-M0 |
| Case | 48-LQFP |
| Data converters | A/D 13x12b |
| Program memory size | 16KB (16K x 8) |
With 16 KB Flash and 6 KB RAM, this is the smallest density in the STM32F042 line. That is enough for a USB HID or a CANopen slave node running a few hundred lines of control code.
The STM32F042C4T6 carries an end-of-life (hot) status. The manufacturer has discontinued the part; last-time-buy windows may have closed or are closing.
The STM32F042C6T6 is the closest pin-compatible alternative — same 48-LQFP package, same peripheral set (USB, CAN, 12-bit ADC), but with 32 KB Flash instead of 16 KB. The STM32F072C8T6 also fits the same footprint and adds a larger memory array (64 KB Flash, 16 KB RAM) while keeping the Cortex-M0 core.
We source STM32F042C4T6 through our independent supply chain and quote it to order against an RFQ. Availability and current pricing are confirmed at quote time — submit an RFQ through the storefront for a firm response with date-code and packaging condition.
The core runs at 48 MHz, which is the maximum clock for the STM32F0 Cortex-M0 line. That is enough for USB full-speed (12 Mbps) and CAN 2.0B at 1 Mbps without stalling the CPU on interrupt handling.
RoHS and REACH compliance declarations, along with conflict minerals reports, are available on request for each shipment lot. The part is not AEC-Q100 qualified; it is rated for industrial temperature (-40 to 85 °C).