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STMicroelectronics STM32F101R6T6 — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM32F101R6T6 ARM Cortex-M3 MCU, 36 MHz, 32 KB Flash

MPNSTM32F101R6T6
Obsolete

STMicroelectronics STM32F101R6T6, ARM Cortex-M3 32-bit MCU, 36 MHz core, 32 KB Flash, 6K x 8 SRAM, 51 I/O, 64-LQFP, -40 to 85 °C.

$0.5800Ref. price · indicative, final on quote
STMicroelectronics STM32F101R6T6 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM32F101R6T6 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
PackageTray
RAM size6K 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
Program memory size32KB (32K x 8)

Product details

36 MHz ARM Cortex-M3 with 32 KB Flash — what the specs mean for your BOM

This MCU is suited for cost-sensitive industrial control, sensor nodes, and general-purpose embedded applications where the 36 MHz core and 32 KB Flash provide adequate headroom for moderate-complexity firmware without the overhead of a higher-performance part.

Obsolete — planning for the last buy or a drop-in replacement

The STM32F101R6T6 is officially marked as Obsolete in the lifecycle record. This means STMicroelectronics has discontinued production and there is no ongoing factory supply. Stock that surfaces should be verified for date-code freshness and authenticity — the last-time-buy window has closed, so any available units are from distributor or OEM inventory that was never consumed. A full qualification of any replacement is required before committing the BOM.

Supply rails, temperature grade, and package — fit for industrial boards

Frequently asked questions

Is STM32F101R6T6 obsolete?

Yes, the lifecycle record lists it as Obsolete. STMicroelectronics has discontinued production, so new supply is limited to surplus and broker inventory.

What is the replacement for STM32F101R6T6?

There is no single official replacement code from ST for this exact part. A pin-compatible migration path exists within the STM32F103 series (same 64-LQFP package, same supply voltage), which offers a 72 MHz core and additional peripherals. Any replacement requires full electrical and firmware validation.

What is STM32F101R6T6's listed speed?

The core processor runs at 36 MHz, which is the maximum clock frequency for this ARM Cortex-M3 device.