My Inquiry
My Account
STMicroelectronics STM32F101C8T6
- Part No.:
- STM32F101C8T6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
STM32F101C8T6.pdf
- Description:
- IC MCU 32BIT 64KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,729
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STM32F101C8T6 from STMicroelectronics is a medium-density ARM® Cortex®-M3 microcontroller with 64 KB Flash, 10 KB SRAM, 36 MHz max CPU frequency, 7 communication interfaces (including 3x USART, 2x I²C, 2x SPI), and integrated 12-bit ADC with temperature sensor - deployed in industrial sensor nodes and motor control subsystems requiring deterministic real-time response.
For engineers reviewing the STM32F101C8T6 datasheet, STM32F101C8T6 pinout, STM32F101C8T6 application, or STM32F101C8T6 equivalent, key selection criteria include Flash/SRAM size, 48-pin LQFP package compatibility, 36 MHz operation under 2.0–3.6 V supply, and support for SWD/JTAG debug and multiple low-power modes (Sleep/Stop/Standby).
Technical Context
The STM32F101C8T6 implements an ARM Cortex-M3 core with single-cycle multiplication, hardware division, and nested vectored interrupt controller (NVIC) supporting up to 60 interrupts. Its clock system integrates 4–16 MHz external crystal oscillator, 8 MHz factory-trimmed RC, 40 kHz RC, PLL for CPU clock, and 32 kHz RTC oscillator with calibration.
DMA supports 7 channels servicing timers, ADC, SPI, I²C, and USART peripherals; the 12-bit ADC delivers 1 µs conversion across up to 16 channels with 0–3.6 V input range and on-chip temperature sensing - all operating within specified voltage (2.0–3.6 V) and ambient temperature (–40°C to +85°C) limits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M3, 36 MHz max - enables deterministic real-time execution with 1.25 DMIPS/MHz performance at zero wait states. |
| Flash Memory | 64 KB - sufficient for firmware with bootloader, communication stacks (e.g., Modbus RTU), and control algorithms. |
| SRAM | 10 KB - supports real-time data buffering, stack allocation for nested interrupts, and small heap usage. |
| ADC Resolution | 12-bit, 1 µs conversion - captures analog sensor signals (e.g., current/voltage feedback in motor drives) with ±1 LSB INL/DNL accuracy. |
| I/O Count | 37 GPIO pins - includes 5 V-tolerant inputs and mapping to 16 external interrupt vectors for responsive event handling. |
| Communication Interfaces | 3× USART, 2× I²C, 2× SPI - enables concurrent serial sensor interfacing, display control, and fieldbus connectivity (e.g., RS-485 via USART with external transceiver). |
| Timers | Three 16-bit general-purpose timers, independent/window watchdog, SysTick - provides PWM generation, pulse counting, and fail-safe timeout protection. |
| Supply Voltage | 2.0–3.6 V - compatible with standard 3.3 V power rails and tolerant of Li-ion battery discharge profiles. |
Pinout & Package
LQFP48 (7 × 7 mm, 0.5 mm pitch) package with exposed thermal pad - optimized for compact industrial PCB layouts and moderate thermal dissipation (θJA = 49 °C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Separate analog/digital supply domains ensure clean ADC reference and stable core operation. |
| PA0–PA15, PB0–PB15, PC13–PC15 | General-purpose I/O | 37 total GPIOs; most support external interrupts, alternate functions (USART/I²C/SPI), and 5 V tolerance on input. |
| OSC_IN / OSC_OUT | External crystal oscillator interface | Supports 4–16 MHz quartz crystals for precise timing in communication and RTC applications. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; accepts Schmitt-triggered signal for noise immunity. |
| SWDIO / SWCLK | Serial Wire Debug interface | Two-pin debug port enabling full SWD functionality (breakpoints, memory access, register inspection) without JTAG overhead. |
Key Features
| Feature | Design Value |
|---|---|
| Low-power modes | Sleep (core stopped, peripherals active), Stop (1.8 µA typical), Standby (2.3 µA) - extends battery life in portable sensor nodes. |
| CRC calculation unit | Hardware-accelerated CRC-32 - validates firmware integrity and communication packet checksums without CPU load. |
| Temperature sensor | Calibrated on-chip sensor (±1.5°C accuracy) - enables thermal monitoring in enclosed motor drivers or power supplies. |
| 96-bit unique ID | Factory-programmed serial number - supports secure device authentication and license binding in OEM deployments. |
| VBAT supply | Dedicated backup domain power - maintains RTC and 42 bytes of backup registers during main power loss. |
Applications
| Industrial Sensor Node | Motor Control Subsystem |
|---|---|
Use Scenario: Compact environmental monitor measuring temperature, humidity, and CO₂ using I²C sensors and UART telemetry to gateway. IC Role / Device Role / Timing Role: Main controller executing sensor polling, data fusion, and low-power scheduling; RTC provides timestamping. Use Value: 37 GPIOs accommodate multiple sensor interfaces; 64 KB Flash hosts lightweight protocol stack (e.g., MQTT-SN); Stop mode reduces average current to <10 µA. | Use Scenario: Brushless DC motor commutation with Hall-effect feedback, current sensing, and speed regulation via PID loop. IC Role / Device Role / Timing Role: Real-time motion controller generating 3-phase PWM via TIM1/TIM2; ADC samples phase currents synchronously. Use Value: Three 16-bit timers support complementary PWM with dead-time insertion; 12-bit ADC achieves <1% current measurement error at 1 µs sampling. |
| Smart Energy Meter Interface | RS-485 Field Device |
Use Scenario: Data concentrator aggregating pulse outputs from mechanical meters and transmitting via LoRaWAN modem. IC Role / Device Role / Timing Role: Protocol bridge between meter pulse counters (GPIO input capture) and modem UART; CRC unit validates frame integrity. Use Value: External interrupt vectors handle high-frequency pulse inputs; 10 KB SRAM buffers burst telemetry before transmission. | Use Scenario: DIN-rail mounted actuator with Modbus RTU over RS-485, local button/LED control, and EEPROM configuration storage. IC Role / Device Role / Timing Role: Communication processor managing Modbus framing, parity, and timeout handling; GPIOs drive LEDs and read pushbuttons. Use Value: Three USARTs allow simultaneous Modbus slave, debug console, and secondary bus; 5 V-tolerant inputs simplify front-panel interface design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F030F4P6 | ARM Cortex-M0, 48 MHz, 16 KB Flash, 4 KB SRAM, no USB, fewer timers and communication interfaces | Lower-cost entry-level control where 36 MHz performance and 64 KB Flash are not required | Select when BOM cost sensitivity outweighs need for advanced peripherals and larger code space. |
| STM32F103C8T6 | Same package and pinout, but 128 KB Flash, 20 KB SRAM, additional ADC channel and timer, higher temperature grade (–40°C to +105°C) | Drop-in upgrade path for designs needing more memory or extended thermal operation | Choose for future-proofing or when existing firmware exceeds 64 KB or requires extended temperature margin. |
Compared with STM32F030F4P6, the STM32F101C8T6 offers higher deterministic performance and richer peripheral set for real-time control; compared with STM32F103C8T6, it trades Flash/SRAM capacity and temperature range for lower unit cost and identical footprint in volume-sensitive industrial applications.
Availability
STM32F101C8T6 is available at Aetrix Electronics and suitable for industrial sensor nodes, motor control subsystems, smart energy meter interfaces, and RS-485 field devices requiring stable component supply across multi-year production cycles.
Supply support for STM32F101C8T6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and automotive semiconductors since 1987.
The STM32F101xx series belongs to ST's legacy Cortex-M3-based access line - engineered for cost-sensitive industrial and consumer applications demanding robust real-time control, low-power operation, and broad peripheral integration without USB or CAN.
FAQ
What debug interfaces does the STM32F101C8T6 support?
The STM32F101C8T6 supports Serial Wire Debug (SWD) and JTAG interfaces. SWD uses only two pins (SWDIO and SWCLK) and is the recommended method for programming and debugging due to its minimal pin count and full feature parity with JTAG. Both interfaces enable breakpoints, register inspection, and flash programming via standard tools like ST-LINK/V2.
Does the STM32F101C8T6 support 5 V-tolerant I/Os?
Yes - 37 GPIO pins on the STM32F101C8T6 are 5 V-tolerant on input when configured in floating-input, pull-up, or pull-down mode. This allows direct interfacing with 5 V logic (e.g., legacy sensors or level-shifter-free RS-232 transceivers) without external protection circuitry, provided VDD remains within 2.0–3.6 V.
What is the maximum ADC sampling rate and accuracy specification?
The integrated 12-bit ADC achieves 1 µs conversion time per sample (up to 1 MSPS) with ±1 LSB integral nonlinearity (INL) and differential nonlinearity (DNL) under typical conditions. Accuracy is specified over 0–3.6 V input range and –40°C to +85°C ambient, with dedicated VREF+ and VREF– pins for precision reference voltage routing.
Can the STM32F101C8T6 operate from a single-cell Li-ion battery?
Yes - the STM32F101C8T6 operates across 2.0–3.6 V, matching the discharge curve of a single-cell Li-ion (3.0–4.2 V) when used with a low-dropout regulator (e.g., 3.3 V LDO). Its Stop mode draws only 1.8 µA (typical) with RTC active, enabling multi-month battery life in intermittent-sensing applications when paired with appropriate power management.
STM32F101C8T6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 48-LQFP
- Series:
- STM32F1
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 36MHz
- Connectivity:
- I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals:
- DMA, PDR, POR, PVD, PWM, Temp Sensor, WDT
- Number of I/O:
- 37
- Program Memory Size:
- 64KB (64K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 10K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 3.6V
- Data Converters:
- A/D 10x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F101C8T6 FAQ
1.How can I place an order for STM32F101C8T6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F101C8T6 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM32F101C8T6 reliable?
The price and inventory of STM32F101C8T6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F101C8T6 is usually 5 days.
3.What payment methods are accepted for STM32F101C8T6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F101C8T6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F101C8T6?
STM32F101C8T6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F101C8T6 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM32F101C8T6?
For technical support, including STM32F101C8T6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F101C8T6 requirements.
6.How does Aetrix verify that STM32F101C8T6 is sourced from the original manufacturer or authorized distributors?
All STM32F101C8T6 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32F101C8T6 meets industry standards.
7.What is the process for return or replacement of STM32F101C8T6?
All STM32F101C8T6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32F101C8T6, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM32F101C8T6 part is unused and in its original packaging.
Return procedure for STM32F101C8T6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32F101C8T6 Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
