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STMicroelectronics STM32F101C8U6TR — Microcontrollers & Processors (MCU / MPU / DSP)

STM32F101C8U6TR ARM Cortex-M3 MCU, 36 MHz, 64 KB Flash

MPNSTM32F101C8U6TR
Active

STMicroelectronics STM32F1 series, ARM Cortex-M3, 32-bit Single-Core, 36MHz, 64KB (64K x 8) FLASH, 10K x 8 RAM, 48-VFQFN Exposed Pad, -40°C ~ 85°C (TA).

$3.0202Ref. price · indicative, final on quote
STMicroelectronics STM32F101C8U6TR datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM32F101C8U6TR specifications
ParameterValue
SeriesSTM32F1
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed36MHz
PackageTape & Reel (TR)
RAM size10K x 8
Core size32-Bit Single-Core
PeripheralsDMA, PDR, POR, PVD, PWM, Temp Sensor, WDT
ConnectivityI²C, IrDA, LINbus, SPI, UART/USART
Number of i (O)37
Core processorARM® Cortex®-M3
Case48-VFQFN Exposed Pad
Data convertersA/D 10x12b
Program memory size64KB (64K x 8)

Product details

36 MHz Cortex-M3 with 64 KB Flash — the value-line workhorse

The STM32F101C8U6TR: 64 KB of Flash and 10 KB of SRAM. The 48-pin UFQFPN package with exposed pad (7x7 mm) keeps the board area tight. Peripherals include DMA, multiple reset/supply monitors (PDR, POR, PVD), a PWM timer, a temperature sensor, and a watchdog. The 37 GPIOs give reasonable pinout flexibility for a 48-pin part.

64 KB Flash, 10 KB SRAM — sizing the firmware budget

Program memory is 64 KB of Flash, organized as 64K x 8. The 10 KB SRAM (10K x 8) is the working-memory ceiling.

48-UFQFPN — footprint and thermal notes

The 48-UFQFPN (7x7 mm) package with exposed pad is a surface-mount, leadless package. MSL 3 handling applies.

Frequently asked questions

Is STM32F101C8U6TR pin compatible with STM32F103C8T6?

The STM32F101C8U6TR and STM32F103C8T6 share the same 48-pin footprint and are pin-compatible. The key difference is the core clock: 36 MHz on the F101 versus 72 MHz on the F103, and the F103 carries a second ADC and more advanced timer features. If the application can tolerate the lower clock and reduced peripheral set, the F101 is a direct drop-in replacement on the same PCB layout.