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STMicroelectronics STM32F051C4T6 — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM32F051C4T6 ARM Cortex-M0 MCU, 48 MHz, 16 KB Flash

MPNSTM32F051C4T6
Active

ST STM32F0 series 32-bit ARM Cortex-M0 MCU, 48 MHz, 16 KB Flash, 8 KB SRAM, 48-LQFP, -40 to 85°C, 39 I/O, 2V to 3.6V supply.

$3.9900Ref. price · indicative, final on quote
STMicroelectronics STM32F051C4T6 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM32F051C4T6 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
PackageTray
RAM size8K x 8
Core size32-Bit Single-Core
PeripheralsDMA, I²S, POR, PWM, WDT
ConnectivityHDMI-CEC, I²C, IrDA, LINbus, SPI, UART/USART
Number of i (O)39
Core processorARM® Cortex®-M0
Case48-LQFP
Data convertersA/D 13x12b; D/A 1x12b
Program memory size16KB (16K x 8)

Product details

48 MHz Cortex-M0 with 16 KB Flash — entry-level control MCU

Supply voltage spans 2 V to 3.6 V.

Integrated data converters and peripherals

Thirteen 12-bit ADC channels and one 12-bit DAC are on-chip, enough to read a handful of analog sensors and output a control voltage without external converters. The DMA controller offloads peripheral-to-memory transfers, keeping the Cortex-M0 free for loop code. Peripherals include PWM timers, a watchdog timer, POR, and I²S audio interface — the I²S block is useful for audio playback or codec communication in a simple voice prompt system.

Frequently asked questions

What is the closest pin-compatible alternative to STM32F051C4T6?

Within the STM32F051 family, the STM32F051C6T6 and STM32F051C8T6 use the same 48-LQFP footprint and pinout, offering 32 KB and 64 KB Flash respectively. They are direct drop-in replacements for a firmware size upgrade without a PCB change.

What is STM32F051C4T6's listed speed?

The core runs at 48 MHz, which is the maximum clock for the STM32F0 series Cortex-M0. This sets the timing budget for control loops and serial baud rates.

What compliance documentation does ST provide for STM32F051C4T6?

STMicroelectronics provides RoHS and REACH compliance declarations for this part. The 48-LQFP package is lead-free and meets the current EU directive requirements.