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STMicroelectronics STM32F101C6T6A
- Part No.:
- STM32F101C6T6A
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
STM32F101C6T6A.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,984
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Product details
Overview
STM32F101C6T6A from STMicroelectronics is a low-density ARM® Cortex®-M3 microcontroller with 32 KB Flash, 6 KB SRAM, 36 MHz max CPU frequency, 12-bit ADC (1 µs conversion), and four communication interfaces (I²C, two USARTs, SPI). It operates from 2.0–3.6 V, supports Sleep/Stop/Standby low-power modes, and integrates a temperature sensor and CRC unit for embedded control in cost-sensitive industrial and consumer devices.
For engineers reviewing the STM32F101C6T6A datasheet, STM32F101C6T6A pinout, STM32F101C6T6A application, or STM32F101C6T6A equivalent, key selection factors include Flash/SRAM capacity, 48-pin LQFP package compatibility, 36 MHz real-time performance, 51 I/O count with 5 V tolerance on most pins, and integrated RTC with VBAT backup support.
Technical Context
The STM32F101C6T6A implements an ARM Cortex-M3 core with single-cycle multiplication and hardware division, executing at up to 36 MHz with 1.25 DMIPS/MHz efficiency. Its clock system includes a 4–16 MHz external crystal oscillator, factory-trimmed 8 MHz internal RC, 40 kHz LSI RC, PLL for CPU clock generation, and dedicated 32 kHz oscillator for RTC calibration.
Peripheral integration centers on deterministic real-time control: seven-channel DMA servicing timers, ADC, SPI, I²C, and USARTs; nested vectored interrupt controller (NVIC) supporting up to 60 interrupts; and five general-purpose timers-including two 16-bit units with IC/OC/PWM capability, independent/window watchdogs, and SysTick-enabling precise timing and event handling in resource-constrained systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M3, 36 MHz max - delivers deterministic real-time execution with 1.25 DMIPS/MHz for control-loop timing-critical firmware. |
| Memory | 32 KB Flash + 6 KB SRAM - sufficient for compact RTOS-based applications with local data buffering and firmware updates. |
| ADC | 12-bit, 1 µs conversion, 16-channel - enables high-resolution analog sensing (e.g., battery voltage, temperature) without external converters. |
| I/O Count | 37 GPIOs (5 V-tolerant on most) - supports direct interfacing with legacy 5 V logic and mixed-voltage peripheral expansion. |
| Timers | 2× 16-bit GP timers, 2× watchdogs, SysTick - provides PWM generation, input capture, safety monitoring, and OS tick timing in one chip. |
| Communication | 1× I²C, 2× USART, 1× SPI - covers sensor bus, serial diagnostics/modem, and flash memory or display interface needs. |
| Power Modes | Sleep, Stop, Standby with VBAT RTC - extends battery life in portable equipment while retaining timekeeping and register state. |
Pinout & Package
LQFP48 package: 7 × 7 mm body, 0.5 mm pitch, 48 pins, RoHS-compliant ECOPACK®.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 2.0–3.6 V supply rails with decoupling requirements for stable core/peripheral operation. |
| PA0–PA15, PB0–PB15, PC13–PC15 | General-purpose I/O | 37 total mappable GPIOs; most tolerate 5 V inputs-simplifies level-shifting in mixed-voltage designs. |
| OSC_IN / OSC_OUT | External crystal oscillator interface | Supports 4–16 MHz quartz crystal for precise system clock and USB-free timing accuracy. |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; accepts 5 V-tolerant signal for robust system initialization. |
| BOOT0 | Boot mode selection | Configures boot source (system memory, Flash, or SRAM) during power-on reset for firmware recovery or debug loading. |
| VREF+, VREF− | ADC reference voltage inputs | Enable external precision reference (e.g., 2.5 V) for improved ADC linearity vs. internal VDD-based reference. |
| VBAT | RTC/backup register supply | Connects to coin cell to maintain RTC time and 42 bytes of backup registers during main power loss. |
Key Features
| Feature | Design Value |
|---|---|
| Serial wire debug (SWD) | Single-pin debug interface replacing JTAG pins - reduces PCB footprint and simplifies in-circuit programming and trace debugging. |
| Programmable voltage detector (PVD) | Monitors VDD and triggers interrupt or reset below user-defined threshold - enables graceful shutdown before brownout corruption. |
| Temperature sensor | On-die sensor calibrated against VDD - provides ambient die temperature measurement without external components for thermal management. |
| CRC calculation unit | Hardware-accelerated 32-bit CRC - offloads checksum computation for firmware integrity checks and communication frame validation. |
| 96-bit unique ID | Factory-programmed serial number - supports device authentication, license binding, and secure firmware activation per unit. |
Applications
| Industrial Sensor Node | Smart Home Controller |
|---|---|
Use Scenario: Battery-powered environmental monitor collecting temperature, humidity, and motion data for cloud upload via UART-to-LoRaWAN bridge. IC Role / Device Role / Timing Role: Main MCU executing sensor fusion, low-power scheduling, and UART packet framing; RTC maintains timestamped logs during deep sleep. Use Value: 37 GPIOs interface multiple analog/digital sensors; 32 KB Flash stores LoRaWAN stack and OTA update handler; Stop mode draws <10 µA for multi-year battery life. | Use Scenario: Wall-mounted HVAC controller managing fan speed, relay outputs, and IR remote decoding with local UI feedback. IC Role / Device Role / Timing Role: Real-time control unit running PID loop for temperature regulation; two USARTs handle IR RX/TX and RS-485 HVAC bus communication. Use Value: Two 16-bit timers generate precise PWM for fan control; 5 V-tolerant I/O directly drive relays and accept 5 V IR receiver output; 12-bit ADC reads thermistor with ±1°C accuracy. |
| POS Terminal Peripheral | Medical Diagnostic Handheld |
Use Scenario: Compact barcode scanner add-on module connecting to main POS via I²C, with button input, LED status, and buzzer feedback. IC Role / Device Role / Timing Role: Dedicated interface co-processor handling barcode decode timing, button debouncing, and audio pulse generation. Use Value: I²C slave mode enables seamless host communication; 36 MHz CPU handles real-time decode algorithms; 6 KB SRAM buffers scanned data before transmission. | Use Scenario: Portable blood glucose meter with LCD, button interface, and USB charging detection-requiring low-power operation and analog front-end precision. IC Role / Device Role / Timing Role: System-on-chip managing glucose strip ADC sampling, LCD refresh, button polling, and USB enumeration state machine. Use Value: 12-bit ADC achieves 0.1 mV resolution for electrochemical strip reading; VBAT-backed RTC timestamps test results; Standby mode draws 2 µA for instant wake-on-button press. |
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 VBAT RTC or temperature sensor | Lacks backup-registers and calibrated temperature sensing; lower interrupt latency but reduced analog feature set | Choose for cost-sensitive, non-RTC applications where 48 MHz M0 performance suffices and analog features are secondary. |
| STM32F103C6T6A | Same package and pinout; 32 KB Flash, 10 KB SRAM, enhanced peripherals (USB, CAN, higher ADC resolution) | Direct pin-compatible upgrade path with USB device support and extended memory for larger firmware | Choose when future USB connectivity or additional RAM for protocol stacks is required-no PCB redesign needed. |
Compared with STM32F030F4P6, the STM32F101C6T6A offers superior analog integration and RTC reliability; compared with STM32F103C6T6A, it trades USB/CAN for lower cost and identical footprint-ideal for non-USB embedded control where BOM cost and proven stability are prioritized.
Availability
STM32F101C6T6A is available at Aetrix Electronics and suitable for industrial sensor nodes, smart home controllers, POS peripheral modules, and medical diagnostic handhelds requiring stable component supply across long-lifecycle production programs.
Supply support for STM32F101C6T6A 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, designing and manufacturing microcontrollers, power management ICs, MEMS, and automotive semiconductors with vertical fabrication capability.
The STM32F101x6 product line targets cost-optimized, low-power embedded control applications-delivering Cortex-M3 performance in compact packages for industrial automation, consumer electronics, and IoT edge nodes where Flash size and peripheral count are tightly balanced.
FAQ
What is the maximum operating frequency and associated power consumption of the STM32F101C6T6A?
The STM32F101C6T6A runs at up to 36 MHz with typical active current of 19 mA at 3.6 V and 36 MHz (code from Flash, all peripherals enabled). At 8 MHz, current drops to ~7 mA under same conditions. Power scales linearly with frequency and voltage, and Stop mode draws as low as 3.5 µA with RTC active and regulator in low-power mode.
Does the STM32F101C6T6A support in-application programming (IAP) of its Flash memory?
Yes, the STM32F101C6T6A supports IAP via its built-in bootloader or user firmware using the Flash programming interface. The 32 KB Flash is organized into 1 KB pages, and sector erase/write operations can be performed while executing code from SRAM or other Flash regions-enabling field firmware updates without external programmers.
How many of the GPIO pins are 5 V tolerant, and which ones are not?
Of the 37 GPIOs, all except PA13 (JTMS), PA14 (JTCK), PA15 (JTDI), PB3 (JTDO), and PB4 (NJTRST) are 5 V tolerant. These five pins are dedicated to SWD/JTAG debug and must be driven at VDD levels only. Full 5 V tolerance applies to standard I/Os like PA0–PA12, PB0–PB12, and PC13–PC15-verified per datasheet Table 33.
What are the supported boot modes, and how is boot configuration controlled?
The STM32F101C6T6A supports three boot modes: main Flash memory (default), system memory (built-in bootloader), and embedded SRAM. Boot mode is selected by the state of BOOT0 and BOOT1 pins at reset: BOOT0 = 0 selects Flash; BOOT0 = 1 and BOOT1 = 0 selects system memory; BOOT0 = 1 and BOOT1 = 1 selects SRAM. Configuration is latched at power-on reset and cannot be changed dynamically.
STM32F101C6T6A 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:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 6K 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:
STM32F101C6T6A FAQ
1.How can I place an order for STM32F101C6T6A through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F101C6T6A 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 STM32F101C6T6A reliable?
The price and inventory of STM32F101C6T6A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F101C6T6A is usually 5 days.
3.What payment methods are accepted for STM32F101C6T6A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F101C6T6A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F101C6T6A?
STM32F101C6T6A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F101C6T6A 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 STM32F101C6T6A?
For technical support, including STM32F101C6T6A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F101C6T6A requirements.
6.How does Aetrix verify that STM32F101C6T6A is sourced from the original manufacturer or authorized distributors?
All STM32F101C6T6A 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 STM32F101C6T6A meets industry standards.
7.What is the process for return or replacement of STM32F101C6T6A?
All STM32F101C6T6A units undergo pre-shipment inspection (PSI). If there is an issue with STM32F101C6T6A, 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 STM32F101C6T6A part is unused and in its original packaging.
Return procedure for STM32F101C6T6A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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