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STM32F101C8T6TR - STMicroelectronics

Name: STMicroelectronics STM32F101C8T6TR
Brand: STMicroelectronics
SKU: STM32F101C8T6TR
Availability: InStock
Rating: 5 (5 reviews)

Manufacturer Part Number: STM32F101C8T6TR

Manufacturer: STMicroelectronics

Allelco Part Number: 41D-STM32F101C8T6TR

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 14,030 pcs available, New & Original

Parts Description: 48-LQFP

Data sheet: -

Category: Integrated Circuits (ICs) > Specialized ICs

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In stock: 14030

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STM32F101C8T6TR Tech Specifications
STMicroelectronics - STM32F101C8T6TR technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics - STM32F101C8T6TR

Product Attribute	Attribute Value
Part Number	STM32F101C8T6TR
Package	48-LQFP
Description	48-LQFP
Stock Condition	Get 14030 pcs available quantity at Allelco
Payment	PayPal / TT / Credit Card / Western Union
Allelco Certifications	ESD / ISO 9001 / ISO 13485 / ISO 28000

Product Attribute	Attribute Value
Manufacturer	STMicroelectronics
RoHs Status	-
Warranty	100% Perfect Functions
Transport port	Hong Kong
Shipping by	DHL / FedEx / UPS / TNT / SF Express
RFQ Email	info@allelco.com

Parts Introduction

Manufacturer Part Number

STM32F101C8T6TR

Manufacturer

stmicroelectronics

Introduction

The STM32F101C8T6TR is a high-performance, low-power 32-bit microcontroller based on the ARM Cortex-M3 processor. It offers a range of peripherals and connectivity options, making it suitable for a wide variety of embedded applications.

Product Features and Performance

32-bit ARM Cortex-M3 core operating at up to 36MHz

64KB of Flash memory and 10KB of RAM

Diverse set of peripherals including DMA, PWM, temperature sensor, and watchdog timer

Extensive connectivity options such as I2C, SPI, UART, and LIN bus

Low-power modes for energy-efficient operation

Product Advantages

Powerful 32-bit processing capabilities

Flexible peripheral set and connectivity options

Low-power modes for energy-efficient applications

Extensive development ecosystem and tools support

Key Reasons to Choose This Product

Powerful and efficient 32-bit ARM Cortex-M3 core

Versatile peripheral set and connectivity options

Low-power operation for battery-powered applications

Reliable and well-supported by the STMicroelectronics ecosystem

Quality and Safety Features

Industrial-grade temperature range of -40°C to 85°C

Robust and reliable surface-mount packaging

Comprehensive safety features including power-on reset and power voltage detector

Compatibility

The STM32F101C8T6TR is compatible with a wide range of development tools and software platforms, allowing for seamless integration into various embedded systems.

Application Areas

Industrial automation and control

Home automation and smart home devices

Medical equipment and healthcare devices

Portable and battery-powered electronics

Automotive and transportation systems

Product Lifecycle

The STM32F101C8T6TR is an active product in the STMicroelectronics portfolio. There are several equivalent and alternative models available, such as the STM32F102C8T6TR and STM32F103C8T6TR, which offer similar features and performance. For more information on the product lifecycle and available alternatives, please contact our website's sales team.

Frequently Asked Questions(FAQ)

How does the STM32F101C8T6TR compare to other STM32F101 variants in terms of memory capacity and pin count for compact embedded designs?: The STM32F101C8T6TR offers 64KB of FLASH program memory and 10KB of RAM, which places it between the low-density (32KB) and high-density (128KB) variants of the STM32F101 series. With a 48-pin LQFP package (7x7mm), it provides sufficient I/O (37 pins) for moderate peripheral integration without the footprint of larger packages like the 64-pin or 100-pin versions. This makes it suitable for space-constrained applications requiring more than basic functionality but not needing advanced memory or connectivity features.

What are the key trade-offs when selecting the STM32F101C8T6TR for battery-powered IoT sensor nodes operating in industrial environments?: The STM32F101C8T6TR operates from 2V to 3.6V, enabling low-power modes critical for battery life, but its 36MHz maximum frequency may require careful clock management to balance performance with energy consumption. While it includes peripherals like PWM, ADC, and WDT, the absence of an integrated LCD controller limits use in display-based interfaces. The -40°C to 85°C operating range supports industrial deployment, but external components must be similarly qualified. Its 64KB FLASH allows firmware with sensor calibration routines and communication stacks, though complex protocols may strain memory limits.

Can the STM32F101C8T6TR support real-time motor control applications using encoder feedback and PWM generation?: Yes, the STM32F101C8T6TR can handle basic real-time motor control tasks such as generating PWM signals via its timer peripherals and reading quadrature encoder inputs through GPIO or dedicated timers. However, its 36MHz core speed and 10KB RAM constrain the complexity of control algorithms—simple PID loops are feasible, but advanced field-oriented control (FOC) may exceed available resources. Users must optimize code and avoid heavy math libraries. The presence of DMA and multiple USARTs helps manage data flow efficiently.

How does the internal oscillator of the STM32F101C8T6TR impact timing accuracy in time-critical communication protocols like LINbus or IrDA?: The STM32F101C8T6TR relies on an internal 8MHz RC oscillator (±1% typical accuracy), which is sufficient for most UART and SPI applications but introduces timing drift over temperature and voltage fluctuations. For precise baud rate generation in protocols like LINbus, this may require software compensation or external crystal tuning. In contrast, systems using high-speed IrDA or synchronous serial links benefit less from internal oscillators due to tighter timing margins. Designers should verify bit timing under worst-case conditions or consider adding an external 32.768kHz RTC crystal for better long-term stability.

What design considerations apply when integrating the STM32F101C8T6TR into a system requiring simultaneous use of I2C, SPI, and UART peripherals?: The STM32F101C8T6TR shares alternate function pins across its 37 I/O lines, meaning not all combinations of I2C, SPI, and UART can run concurrently without conflict. For example, USART1 uses PA9/PA10, while SPI1 uses PA5–PA7, allowing parallel operation if properly configured. However, I2C1 (PB6/PB7) may interfere if mapped to shared pins. Careful pin planning and review of the reference manual’s alternate function table is essential. Additionally, DMA channels must be allocated per peripheral to reduce CPU load during bulk transfers.

Is the STM32F101C8T6TR suitable for automotive-grade temperature cycling environments without additional shielding?: No, the STM32F101C8T6TR is rated only up to 85°C ambient temperature and is not qualified to AEC-Q100 standards. While it can tolerate brief exposure to higher temperatures within its absolute maximum ratings, continuous operation near 105°C or beyond risks reliability issues. Automotive applications demanding full qualification (e.g., -40°C to +125°C) would require the STM32F103 or another automotive-grade variant. In non-automotive industrial settings, however, it performs reliably within its specified -40°C to 85°C range.

How much current should be anticipated during flash programming on the STM32F101C8T6TR at 3.3V supply?: During FLASH write operations, the STM32F101C8T6TR typically draws 15–20mA from the VDD rail, depending on bus activity and clock speed. At 3.3V, this results in power dissipation of approximately 50–65mW during programming bursts. Since flash writes are infrequent, average current remains low, but peak currents must be accommodated in power budgeting. Decoupling capacitors near VDD/GND pins help stabilize voltage during these transients. Always ensure stable supply during erase/write cycles to prevent corruption.

What role does the Power-on Reset (POR) and Brown-out Reset (BOR) play in ensuring reliable startup on the STM32F101C8T6TR?: The STM32F101C8T6TR includes POR and BOR circuitry that automatically reset the MCU when VDD falls below safe thresholds—typically 2.0V for POR and 1.8V–2.4V for BOR depending on configuration. This prevents erratic behavior during power-up or brownout events. Combined with the programmable voltage detector (PVD), designers can trigger interrupts before undervoltage occurs, enabling graceful shutdown. These features enhance system robustness in noisy or unstable power environments common in embedded deployments.

How does the STM32F101C0T6TR differ functionally from the STM32F101C8T6TR in memory capacity?: The STM32F101C0T6TR has 32KB of FLASH memory compared to 64KB in the STM32F101C8T6TR, while sharing identical package, core, peripherals, and pinout. This means the C0 variant is better suited for simpler applications with limited firmware size—such as basic sensor nodes or state machines—while the C8 variant supports more complex logic, larger lookup tables, or richer protocol stacks. Both operate at 36MHz and have the same 10KB RAM, so the C8 offers double the non-volatile storage without increasing cost significantly.

Can the STM32F101C8T6TR interface directly with 5V logic devices without level shifting?: No, the STM32F101C8T6TR operates at 2V–3.6V and cannot tolerate 5V signals on its GPIO pins. Applying 5V directly may damage the device. Level shifters, resistive dividers (for unidirectional signals), or open-drain configurations with pull-up resistors to 5V are recommended. Alternatively, using the STM32F101’s 5V-tolerant pins (if available) with internal Schmitt triggers can mitigate risk, but general-purpose I/O is not rated for 5V input unless specifically marked as tolerant in the datasheet.

What are the implications of using the STM32F101C8T6TR in a system requiring secure firmware updates over-the-air (OTA)?: The STM32F101C8T6TR lacks hardware cryptographic accelerators (unlike STM32F103 or higher-end series), making secure OTA updates challenging. Implementing AES or SHA-1 in software consumes significant CPU cycles and increases flash footprint, reducing available memory for application code. Additionally, without tamper detection or write protection granularity, firmware integrity is harder to guarantee. Designers must weigh security needs against resource constraints; otherwise, consider migrating to a more capable STM32 family.

How does the Moisture Sensitivity Level (MSL) of 3 for the STM32F101C8T6TR affect PCB assembly handling procedures?: With an MSL of 3, the STM32F101C8T6TR must be stored in dry packaging and assembled within 168 hours (7 days) after opening the moisture barrier pouch. After this window, bake times increase to prevent popcorning during reflow. Standard IPC/JEDEC guidelines apply: pre-bake at 125°C for 24 hours if stored >168hrs at >60% RH. Proper handling ensures solder joint reliability and avoids delamination. Distributors like Digi-Reel® and Cut Tape formats require careful tracking of usage timelines.

What advantages does the STM32F101C8T6TR offer over older ARM7-based MCUs in mixed-signal embedded systems?: Compared to ARM7 cores (e.g., LPC2xxx or STR7), the STM32F101C8T6TR’s Cortex-M3 delivers faster interrupt response (tail-chaining), lower code density (Thumb-2 instruction set), and integrated peripherals like ADC, DAC (on some variants), and comparators. Its single-cycle 32-bit multiplier and SIMD instructions accelerate DSP tasks. Additionally, reduced power consumption at equivalent performance levels extends battery life. The unified memory map simplifies development compared to Harvard architectures in legacy ARM7 parts.

Is it possible to expand external memory using the STM32F101C8T6TR for data logging applications?: No, the STM32F101C8T6TR does not include an external memory interface (FSMC or FMC). It lacks dedicated address/data lines for connecting SRAM, SDRAM, or NOR Flash. Any expansion must rely on serial interfaces like SPI or I2C, which limit bandwidth and are unsuitable for large datasets. For high-volume data logging, a more advanced STM32F103 or F2/F4 variant with FSMC support is preferable.

How does the temperature sensor embedded in the STM32F101C8T6TR perform in precision-critical thermal monitoring?: The internal temperature sensor provides coarse measurements with ±3°C typical accuracy over -40°C to 85°C. While usable for basic thermal throttling or alerting, it is insufficient for medical, laboratory, or high-precision industrial calibration. External precision sensors (e.g., TI TMP117) paired with analog-to-digital conversion via the STM32F101C8T6TR’s ADC yield far better results. Internal sensing is best reserved for relative comparisons or fail-safe triggers rather than absolute values.

What precautions are necessary when routing high-speed signals alongside the STM32F101C8T6TR’s clock inputs?: The STM32F101C8T6TR uses internal oscillators by default, but if an external crystal is used (e.g., 8MHz HSE), signal integrity becomes crucial. Keep traces short (<10mm), avoid vias, and route away from noisy digital lines. Load capacitors must match the crystal’s specified values precisely. Also, minimize coupling to power rails by placing decoupling caps close to VDD and GND pins. Poor clock stability leads to timing errors in UART/SPI/I2C communications.

Can the STM32F101C8T6TR run FreeRTOS or similar RTOS kernels effectively?: Yes, FreeRTOS compiles and runs well on the STM32F101C8T6TR, provided the project stays within 64KB FLASH limit. A minimal port requires ~1–2KB of stack and heap space. Tasks with moderate complexity (e.g., sensor polling, comms handlers) are feasible, but complex scheduling with many tasks or large task stacks may exhaust memory. Use compiler optimization (-Os) and static allocation to conserve resources. The Cortex-M3’s NVIC supports nested interrupts, enabling responsive multitasking.

Why might a designer choose the STM32F101C8T6TR over the STM32F103CBT6 despite the latter’s higher performance?: The STM32F101C8T6TR is often preferred when cost, power, and simplicity justify lower specs. It meets requirements for mid-range embedded systems (e.g., industrial controls, smart meters) without needing the extra 128KB FLASH, 256KB RAM, or USB OTG of the STM32F103. The F103 adds complexity and cost for marginal gains in speed (72MHz vs. 36MHz). If current draw, BOM cost, or pin compatibility outweigh raw performance needs, the F101C8T6TR offers a leaner, proven alternative.

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Customer Reviews

Evaluation: 10 Articles

Dani***alkerTech

Jun 1, 2026

Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.
Yuki***aka88

May 26, 2026

信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。
Stev***aker

May 20, 2026

Solid diode for power rectification. Works well in switching circuits.
Bran***Lewis

May 11, 2026

Compact FPGA with good performance. Suitable for basic signal processing tasks.
Oliv***arris

May 7, 2026

Reliable I/O expander. Works well in embedded control applications.
Jess***Jones

Apr 17, 2026

It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.
Mich***Smith

Apr 17, 2026

Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.
Aman***arris

Apr 3, 2026

It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.
Mike***nch

Apr 3, 2026

Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.
Daic***K.

Mar 23, 2026

Very good. No issue after long time testing.

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Common Countries Logistic Time Reference
Region	Country	Logistic Time(Day)
America	United States	5
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	Japan	4
Middle East	Israel	6

DHL & FedEx Shipment Charges Reference
Shipment charges(KG)	Reference DHL(USD$)
0.00kg-1.00kg	USD$30.00 - USD$60.00
1.00kg-2.00kg	USD$40.00 - USD$80.00
2.00kg-3.00kg	USD$50.00 - USD$100.00

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