Skip to main content
Log in
STMicroelectronics STM32F042K4T6TR — Microcontrollers & Processors (MCU / MPU / DSP)

STM32F042K4T6TR ARM Cortex-M0 MCU, 48MHz, 16KB Flash

MPNSTM32F042K4T6TR
Active

STMicroelectronics STM32F0 series STM32F042K4T6TR, ARM Cortex-M0 32-bit MCU, 48MHz, 16KB Flash, 6K x 8 RAM, USB, CAN, 26 I/O, 2V-3.6V, -40°C to 85°C, 32-LQFP.

$1.9334Ref. price · indicative, final on quote
STMicroelectronics STM32F042K4T6TR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM32F042K4T6TR specifications
ParameterValue
SeriesSTM32F0
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed48MHz
PackageTape & Reel (TR)
RAM size6K x 8
Core size32-Bit Single-Core
PeripheralsDMA, I²S, POR, PWM, WDT
ConnectivityCANbus, HDMI-CEC, I²C, IrDA, LINbus, SPI, UART/USART, USB
Number of i (O)26
Core processorARM® Cortex®-M0
Case32-LQFP
Data convertersA/D 13x12b
Program memory size16KB (16K x 8)

Product details

48 MHz Cortex-M0 with USB — what this chip brings to a BOM

The STM32F042K4T6TR: The 32-LQFP package gives you 26 I/O pins in a 7x7 mm footprint, which fits tight two-layer boards where every square millimetre counts. What sets this part apart in the STM32F0 lineup is the USB peripheral on a small-pin-count Cortex-M0.

16 KB Flash and 6K RAM — sizing the firmware budget

16 KB of Flash and 6 KB of SRAM constrain firmware and data buffers.

STMicroelectronics lists the STM32F042K4T6TR as Active.

Pin-compatible alternatives in the STM32F042 family

The STM32F042K4T6TR is pin-compatible with other STM32F042Kx devices in the same 32-LQFP package.

Frequently asked questions

Does STM32F042K4T6TR have USB support?

It can operate as a USB device without an external PHY.

What is the flash size of STM32F042K4T6TR?

The program memory is 16 KB of Flash, organized as 16K x 8. This is the firmware size limit — plan your code footprint accordingly.

Can STM32F042K4T6TR be used as a replacement for STM32F042K4T6?

Yes, the STM32F042K4T6TR is the Tape & Reel packaging variant of the base STM32F042K4T6. The silicon, firmware, and pinout are identical — only the shipping medium differs. It is a direct drop-in replacement for the tube-packaged version.