STMicroelectronics STM32F101VCT6TR
- Part No.:
- STM32F101VCT6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
STM32F101VCT6TR.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 100LQFP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
STM32F101VCT6TR from STMicroelectronics is a high-density ARM® Cortex®-M3 32-bit microcontroller with 256 KB Flash, 48 KB SRAM, and 100-pin LQFP package. It integrates a 12-bit ADC (16 channels), two 12-bit DACs, nine timers (including SysTick, watchdogs, and basic timers), and ten communication interfaces including USART, SPI, I²C, and USB Device (via internal PHY). It targets industrial control panels requiring real-time sensor acquisition, analog output generation, and multi-protocol serial connectivity.
For engineers reviewing the STM32F101VCT6TR datasheet, STM32F101VCT6TR pinout, STM32F101VCT6TR application, or STM32F101VCT6TR equivalent, key selection criteria include Flash/SRAM size, peripheral count (especially dual DAC + 16-channel ADC), 100-pin LQFP footprint compatibility, and support for flexible static memory controller (FSMC) in HMI designs.
Technical Context
The STM32F101VCT6TR implements the ARM Cortex-M3 core at up to 36 MHz with single-cycle multiplication and hardware division, delivering 1.25 DMIPS/MHz performance. Its clock system includes dual oscillators - a 4–16 MHz external crystal and an 8 MHz factory-trimmed internal RC - plus dedicated 32 kHz RTC oscillator with calibration.
Memory architecture features tightly coupled Flash and SRAM, plus a Flexible Static Memory Controller (FSMC) supporting NOR, PSRAM, NAND, and CompactFlash with configurable timing. The device supports full interrupt nesting via NVIC and provides 112 fast I/Os (100 accessible in LQFP100), nearly all 5 V-tolerant and mappable to 16 external interrupt vectors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M3, 36 MHz max - enables deterministic real-time execution with low-latency interrupt handling for closed-loop control. |
| Flash Memory | 256 KB - sufficient for complex firmware with bootloader, communication stacks, and application logic in single-chip HMI systems. |
| SRAM | 48 KB - supports large buffers for communication protocols (e.g., Modbus RTU over USART), sensor fusion, and display frame storage. |
| ADC | 1 × 12-bit, 1 µs conversion, 16 channels - allows simultaneous sampling of multiple analog sensors (temperature, pressure, current) with sub-1 LSB INL. |
| DAC | 2 × 12-bit - enables precise analog output generation for actuator control (e.g., valve positioning, LED dimming) without external DACs. |
| Timers | Up to 9 timers, including 4 × 16-bit general-purpose, 2 × watchdog, SysTick, and 2 × basic timers - supports PWM motor control, pulse counting, RTC backup, and DAC triggering. |
| Communication Interfaces | 3 × SPI (18 Mbit/s), 2 × I²C, 3 × USART, USB 2.0 FS Device - enables concurrent fieldbus (Modbus/RS-485), sensor bus (I²C), and PC interface (USB CDC) in compact industrial nodes. |
Pinout & Package
LQFP100 package (14 × 14 mm, 0.5 mm pitch), RoHS-compliant, ECOPACK® certified. Pin count: 100 leads, with 80 user I/Os (including 16 external interrupt-capable pins) and dedicated power/ground distribution for noise-sensitive analog sections.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dedicated analog/digital power domains with separate VDDA/VSSA pins ensure <1 LSB ADC/DAC noise coupling in mixed-signal operation. |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | 100% 5 V-tolerant on input; configurable as alternate function (AFIO) for USART/SPI/I²C; all support external interrupt (EXTI) mapping. |
| PA0–PA7 | ADC1_IN0–IN7 | Eight dedicated analog inputs shared with GPIO; enable direct connection of up to 8 sensors without multiplexer. |
| PA4–PA5 | DAC_OUT1–OUT2 | Direct analog output pins with internal buffer - drive resistive loads ≤5 kΩ or op-amp inputs without external amplification. |
| PC13–PC15 | RTC oscillator pins | Support 32.768 kHz crystal with built-in load capacitance tuning - eliminates external caps for battery-backed RTC in standalone controllers. |
Key Features
| Feature | Design Value |
|---|---|
| Flexible Static Memory Controller (FSMC) | Four chip-select outputs with programmable timing - enables direct interface to external LCD modules (8080/6800 mode), NOR flash, or PSRAM for extended code/data space in HMI applications. |
| Temperature Sensor | Integrated calibrated sensor with ±1.5°C accuracy (0–100°C) - provides board-level thermal monitoring without discrete thermistor and ADC channel allocation. |
| Low-Power Modes | Sleep (2.5 µA), Stop (1.2 µA), Standby (2.5 µA) - extends battery life in portable diagnostics tools and remote sensor nodes with periodic wake-up via RTC alarm or external interrupt. |
| CRC Calculation Unit | Hardware-accelerated CRC-32 generator - offloads checksum computation from CPU during firmware OTA updates or data logging integrity verification. |
| Serial Wire Debug (SWD) | 2-pin debug interface (SWDIO/SWCLK) - enables full JTAG-equivalent debugging and programming using minimal PCB routing and standard ST-LINK probes. |
Applications
| Industrial HMI Panel | Programmable Logic Controller (PLC) I/O Module |
|---|---|
|
Use Scenario: Compact touch-enabled operator interface with local analog sensor readout and relay control. IC Role / Device Role / Timing Role: Main MCU executing GUI rendering, ADC sampling, DAC-driven analog outputs, and RS-485 Modbus communication. Use Value: Integrated FSMC drives 320×240 parallel LCD; dual DACs directly control 0–10 V analog outputs; 16-channel ADC monitors panel temperature, supply rails, and process signals. |
Use Scenario: DIN-rail mounted digital/analog I/O expansion module for small-scale automation. IC Role / Device Role / Timing Role: Central controller managing isolated digital inputs, analog current loop outputs (4–20 mA), and fieldbus gateway functions. Use Value: Two 12-bit DACs generate precision 4–20 mA outputs via external op-amp/V-I converter; 100-pin LQFP accommodates isolation ICs and signal conditioning circuitry on compact PCB. |
| Medical Diagnostic Handheld | Energy Meter Data Logger |
|
Use Scenario: Portable device acquiring biopotential signals (ECG/EMG) and displaying results on integrated LCD. IC Role / Device Role / Timing Role: Signal acquisition MCU with analog front-end interfacing, real-time processing, and USB-based data export. Use Value: 12-bit ADC achieves >70 dB SNR at 1 kSPS; internal temperature sensor validates calibration stability; USB Device mode enables plug-and-play PC connection without external transceiver. |
Use Scenario: Battery-powered meter recording voltage, current, and energy consumption over time with tamper detection. IC Role / Device Role / Timing Role: Low-power data acquisition node with RTC timestamping, EEPROM emulation in Flash, and optical/IR communication interface. Use Value: Standby current <2.5 µA extends 10-year battery life; VBAT-supplied RTC maintains accurate time during main power loss; CRC unit ensures firmware and log integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit ARM Cortex-M3 microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F103VCT6 | 512 KB Flash, 64 KB SRAM, same pinout and peripherals - adds USB OTG FS, higher Flash density, and enhanced DMA capabilities. | Better suited for applications requiring larger firmware (e.g., embedded web server), USB host capability, or future-proofing against code bloat. | Select when needing >256 KB Flash or USB host functionality; otherwise, STM32F101VCT6TR offers cost-optimized feature set for fixed-function controllers. |
| STM32F072VBT6 | Cortex-M0 core, 128 KB Flash, 16 KB SRAM, 12-bit ADC (16 ch), no DAC, USB Device only - lower performance, smaller memory, no analog output capability. | Targeted at cost-sensitive, lower-complexity devices where DACs and high-speed timers are unnecessary (e.g., simple sensor transmitters). | Choose for ultra-low-cost entry-level designs without DAC requirements; avoid if dual 12-bit DAC or 36 MHz real-time performance is mandatory. |
Compared with STM32F103VCT6, the STM32F101VCT6TR trades Flash headroom and USB OTG for lower unit cost and identical analog/peripheral integration; versus STM32F072VBT6, it delivers significantly higher compute throughput, dual DACs, and richer timer resources - making it the optimal choice for analog-intensive industrial edge nodes.
Availability
STM32F101VCT6TR is available at Aetrix Electronics and suitable for industrial HMI panels, PLC I/O modules, and portable medical diagnostic devices requiring stable component supply, long-term lifecycle assurance, and ECOPACK® compliance.
Supply support for STM32F101VCT6TR 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, specializing in microcontrollers, power management, sensors, and automotive ICs.
The STM32F1 series targets cost-sensitive, high-reliability embedded applications in industrial automation and consumer electronics, emphasizing analog integration, low-power operation, and pin-to-pin scalability across memory and peripheral variants.
FAQ
What is the maximum operating frequency and core type of the STM32F101VCT6TR?
The STM32F101VCT6TR uses an ARM Cortex-M3 core rated for up to 36 MHz operation, achieving 1.25 DMIPS/MHz (Dhrystone 2.1). It includes single-cycle multiplication and hardware division units, enabling deterministic real-time response for control loops and signal processing tasks without software overhead.
Does the STM32F101VCT6TR support USB connectivity?
No, the STM32F101VCT6TR does not integrate a USB peripheral. Unlike the STM32F103 variant, it lacks USB Device or OTG functionality. For USB-based applications, designers must use external USB-UART bridges or select the STM32F103VCT6, which includes a full-speed USB 2.0 Device interface with internal transceiver.
How many analog-to-digital converter (ADC) channels does this MCU provide?
The STM32F101VCT6TR integrates one 12-bit ADC with up to 16 external input channels (ADC1_IN0 to ADC1_IN15), plus one internal temperature sensor channel. All channels share a common 1 µs conversion time and operate across the full 0–3.6 V input range, supporting simultaneous sampling in multi-sensor monitoring systems.
What package type and pin count does the STM32F101VCT6TR use?
The STM32F101VCT6TR is housed in a 100-pin LQFP package (14 × 14 mm, 0.5 mm pitch), designated by the "V" in the part number. It provides 80 general-purpose I/Os, all 5 V-tolerant, with dedicated pins for power, reset, debug (SWD), and analog functions including ADC inputs and dual DAC outputs.
STM32F101VCT6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-LQFP
- Series:
- STM32F1
- Packaging:
- Tape & Reel (TR)
- 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:
- 80
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 2V ~ 3.6V
- Data Converters:
- A/D 16x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F101VCT6TR FAQ
1.How can I place an order for STM32F101VCT6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F101VCT6TR 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 STM32F101VCT6TR reliable?
The price and inventory of STM32F101VCT6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F101VCT6TR is usually 5 days.
3.What payment methods are accepted for STM32F101VCT6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F101VCT6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F101VCT6TR?
STM32F101VCT6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F101VCT6TR 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 STM32F101VCT6TR?
For technical support, including STM32F101VCT6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F101VCT6TR requirements.
6.How does Aetrix verify that STM32F101VCT6TR is sourced from the original manufacturer or authorized distributors?
All STM32F101VCT6TR 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 STM32F101VCT6TR meets industry standards.
7.What is the process for return or replacement of STM32F101VCT6TR?
All STM32F101VCT6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F101VCT6TR, 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 STM32F101VCT6TR part is unused and in its original packaging.
Return procedure for STM32F101VCT6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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