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STMicroelectronics STM32F051R6T6TR — Microcontrollers & Processors (MCU / MPU / DSP)

STM32F051R6T6TR ARM Cortex-M0 MCU, 48 MHz, 32 KB Flash

MPNSTM32F051R6T6TR
Active

STMicroelectronics STM32F0 series, ARM Cortex-M0, 32-Bit Single-Core MCU, 48MHz, 32KB (32K x 8) FLASH, 8K x 8 RAM, 64-LQFP, -40°C ~ 85°C (TA), 2V ~ 3.6V supply, Tape & Reel (TR).

$2.3354Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM32F051R6T6TR 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 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)55
Core processorARM® Cortex®-M0
Case64-LQFP
Data convertersA/D 19x12b; D/A 1x12b
Program memory size32KB (32K x 8)

Product details

48 MHz Cortex-M0 with 32 KB Flash — what it fits

The STM32F051R6T6TR: The 64-LQFP package provides 55 I/Os, enough for sensor arrays, keypad matrices, or parallel LCD interfaces in industrial and consumer equipment.

Memory sizing and the 32 KB / 8 KB split

The 32 KB Flash and 8 KB SRAM partition is the first fit check.

Frequently asked questions

What is the difference between STM32F051R6T6 and STM32F051R6T6TR?

The two order codes are electrically identical. The TR suffix designates Tape & Reel packaging for automated pick-and-place assembly, while the non-TR variant typically ships in trays or tubes. Confirm the packaging format your line requires before ordering — the TR reel is standard for volume SMT production.

Is STM32F051R6T6TR compatible with STM32F051R8T6?

Yes, the STM32F051R8T6 is pin-compatible and shares the same 64-LQFP footprint, supply range, and peripheral set. The R8 variant doubles the Flash to 64 KB. If your firmware fits within 32 KB, the R6T6TR is the correct BOM line; if you need the extra code space, the R8 is a drop-in upgrade with no board change.

Can STM32F051R6T6TR be used as replacement for STM32F051R4T6?

Yes, the STM32F051R6T6TR is a direct pin-compatible upgrade from the STM32F051R4T6. The R6 offers 32 KB Flash versus 16 KB on the R4, with identical 8 KB SRAM, 48 MHz core, and the same 64-LQFP package. Firmware written for the R4 will run on the R6 without modification, and the extra Flash headroom simplifies field-update staging.