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STMicroelectronics STM32F100R6T6B — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM32F100R6T6B ARM Cortex-M3 MCU, 24 MHz, 32 KB Flash

MPNSTM32F100R6T6B
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STMicroelectronics STM32F100R6T6B, STM32F1 series, 32-Bit Single-Core ARM Cortex-M3 MCU, 24 MHz, 32KB (32K x 8) FLASH, 4K x 8 RAM, 64-LQFP, -40°C ~ 85°C.

$5.2600Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM32F100R6T6B specifications
ParameterValue
SeriesSTM32F1
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed24MHz
PackageTray
RAM size4K 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)51
Core processorARM® Cortex®-M3
Case64-LQFP
Data convertersA/D 16x12b; D/A 2x12b
Program memory size32KB (32K x 8)

Product details

What this chip is and where it lands on the BOM

The STM32F100R6T6B: The 64-LQFP package gives you 51 I/O, plus a 16-channel 12-bit ADC and two 12-bit DACs on-chip, which can save a couple of external analog parts on a mixed-signal design.

For a field-service kit or a long-life industrial controller, this is the right kind of supply certainty.

Frequently asked questions

STM32F100R6T6B vs STM32F100R8T6B: what is the difference?

The two parts are pin-compatible in the same 64-LQFP package and share the same 24 MHz Cortex-M3 core. The difference is Flash density: the R6 carries 32 KB, while the R8 carries 64 KB. If your firmware fits in 32 KB, the R6 is the cost-optimized pick; if you need the extra headroom for a larger application stack, step up to the R8.