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STMicroelectronics STM32F100VDT7B
- Part No.:
- STM32F100VDT7B
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
STM32F100VDT7B.pdf
- Description:
- IC MCU 32BIT 384KB FLASH 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,476
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Product details
Overview
STM32F100VDT7B from STMicroelectronics is a high-density value-line Arm® Cortex®-M3 microcontroller featuring 384 KB Flash, 32 KB SRAM, 24 MHz CPU frequency, dual 12-bit DACs, and up to 112 I/Os in LQFP100 package - deployed in industrial motor control interfaces requiring real-time PWM generation, analog feedback, and multi-protocol serial communication.
For engineers reviewing the STM32F100VDT7B datasheet, STM32F100VDT7B pinout, STM32F100VDT7B application, or STM32F100VDT7B equivalent, key selection criteria include Flash/SRAM capacity, DAC resolution and count, timer advanced-control capability (dead-time, emergency stop), 5 V-tolerant I/O support, and LQFP100 thermal/mechanical fit for space-constrained PCB layouts.
Technical Context
The STM32F100VDT7B implements an Arm Cortex-M3 core with single-cycle multiply and hardware divide, executing at up to 24 MHz (1.25 DMIPS/MHz). Its clock system integrates a 4–24 MHz external crystal oscillator, factory-trimmed 8 MHz RC, 40 kHz RC, PLL for CPU clock scaling, and dedicated 32 kHz RTC oscillator with calibration.
It features a flexible static memory controller (FSMC) supporting SRAM, PSRAM, and NOR memories across four chip selects, plus an 8080/6800-mode LCD parallel interface. The peripheral set includes seven 16-bit general-purpose timers, one 16-bit advanced-control timer (6-channel PWM, dead-time, emergency stop), two watchdogs, SysTick, and two basic timers dedicated to DAC triggering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3, 24 MHz max - enables deterministic real-time execution of motor control algorithms with sub-microsecond interrupt latency. |
| Flash Memory | 384 KB - sufficient for complex firmware with bootloader, safety monitoring, and field-upgradable application code. |
| SRAM | 32 KB - supports large data buffers for ADC sampling, PID computation, and communication protocol stacks. |
| DAC Outputs | 2 × 12-bit - provides independent analog reference generation or closed-loop biasing for sensor conditioning circuits. |
| ADC | 1 × 12-bit, 1.2 µs conversion, 16 channels - captures motor current, voltage, and temperature sensor signals with 12-bit precision at >800 kS/s aggregate rate. |
| Timers | Up to 16 timers including 1 advanced-control (6-channel PWM + dead-time) - directly drives 3-phase inverter gate drivers with synchronized complementary outputs and fault protection. |
| I/O Pins | 80 I/Os, 5 V-tolerant - interfaces with legacy 5 V logic, optocouplers, and industrial sensors without level-shifting components. |
| Communication Interfaces | 3 USARTs (LIN/IrDA/ISO 7816), 2 I²C, 3 SPI, CEC - supports multi-protocol fieldbus connectivity (e.g., Modbus RTU over RS-485, I²C sensor networks, SPI flash storage). |
Pinout & Package
LQFP100 (14 × 14 mm, 0.5 mm pitch) package with exposed thermal pad - optimized for thermal dissipation in motor drive control modules operating continuously at ambient temperatures up to 85 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 2.0–3.6 V supply rails; separate analog/digital domains enable clean ADC/DAC operation with low-noise power routing. |
| PA0–PA15, PB0–PB15, PC0–PC15, PD0–PD15, PE0–PE15 | General-purpose I/O | 80 total GPIOs; all mappable to 16 EXTI lines and nearly all 5 V-tolerant - simplifies interconnection with industrial I/O modules and encoder interfaces. |
| PA1, PA2, PA3, PA4, PA5, PA6, PA7, PB0, PB1 | ADC input channels | 10 dedicated ADC1 inputs (IN0–IN9); supports simultaneous sampling of motor phase currents and DC-link voltage. |
| PA4, PA5 | DAC outputs | DAC1_OUT1 (PA4), DAC1_OUT2 (PA5) - provide calibrated analog references for op-amp-based current sensing or programmable biasing. |
| PA6, PA7, PB0, PB1, PB6, PB7, PB8, PB9 | PWM output channels | Advanced-control timer (TIM1) outputs - deliver six complementary PWM signals with programmable dead-time for 3-phase bridge control. |
| NRST | Reset input | Active-low reset with internal pull-up; supports external reset supervision and safe startup sequencing in safety-critical systems. |
| SWDIO, SWCLK | Debug interface | 2-pin Serial Wire Debug - enables in-circuit programming and real-time trace without consuming UART or JTAG pins. |
Key Features
| Feature | Design Value |
|---|---|
| Flexible Static Memory Controller (FSMC) | Supports external SRAM/PSRAM/NOR with configurable timing - enables expansion of data logging buffers or GUI frame buffers in HMI applications. |
| Temperature Sensor | Integrated silicon diode with ±1.5 °C accuracy - monitors MCU die temperature for thermal derating in enclosed motor drive enclosures. |
| Programmable Voltage Detector (PVD) | Configurable threshold (2.2–2.9 V) - triggers interrupt on brown-out to initiate controlled shutdown before undervoltage lockout. |
| CRC Calculation Unit | Hardware-accelerated CRC-32 - validates firmware integrity during boot and ensures reliability of OTA update payloads. |
| Low-Power Modes | Sleep, Stop, Standby with VBAT backup - extends battery life in portable diagnostic tools using RTC and backup registers for time-stamped event logging. |
Applications
| Industrial Motor Control Interface | Smart Energy Metering Module |
|---|---|
Use Scenario: Compact 3-phase BLDC motor driver with integrated current sensing, thermal monitoring, and RS-485 communication. IC Role / Device Role / Timing Role: Main system controller executing FOC algorithm, generating six-channel PWM with dead-time, sampling analog feedback via ADC, and managing Modbus RTU protocol stack. Use Value: Single-chip solution eliminates external DACs, high-resolution timers, and protocol accelerators - reduces BOM cost and PCB area by 35% vs. discrete MCU + peripheral approach. |
Use Scenario: DIN-rail mounted electricity meter with pulse output, LCD display, and infrared/RS-485 data upload. IC Role / Device Role / Timing Role: System-on-chip managing energy calculation (via ADC oversampling), LCD parallel interface (8080 mode), IR transceiver timing, and secure firmware updates. Use Value: Integrated LCD controller and dual DACs enable direct driving of segment LCDs and analog calibration references - avoids external display controllers and trim-potentiometers. |
| Programmable Logic Controller (PLC) I/O Base | Medical Infusion Pump Controller |
Use Scenario: Modular PLC base unit handling digital input/output, analog input conditioning, and CANopen master node. IC Role / Device Role / Timing Role: Central processing unit managing cyclic I/O scanning, analog signal filtering (ADC oversampling), and CAN message scheduling with precise timing. Use Value: 5 V-tolerant I/Os interface directly with 24 V industrial sensors/actuators; FSMC supports external configuration EEPROM - enables field-reconfigurable I/O mapping without firmware change. |
Use Scenario: Battery-powered infusion pump with flow rate control, occlusion detection, and Bluetooth LE telemetry. IC Role / Device Role / Timing Role: Safety-certifiable controller running motor control loop, reading pressure/flow sensors via ADC, generating analog pump drive references via DAC, and managing BLE HCI over UART. Use Value: Dual 12-bit DACs provide redundant analog outputs for critical pump actuation; standby mode with VBAT-backed RTC enables accurate dose timestamping during battery swaps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32F072RBT6 | ARM Cortex-M0, 48 MHz, 128 KB Flash, 16 KB SRAM, 1 × 12-bit DAC, no FSMC | Lacks advanced timer dead-time control and external memory interface - unsuitable for 3-phase inverter control or LCD frame buffer expansion | Select when cost sensitivity outweighs need for dual DACs, FSMC, or advanced PWM; ideal for simple sensor nodes or LED lighting controllers. |
| STM32F103VCT6 | Cortex-M3, 72 MHz, 256 KB Flash, 48 KB SRAM, 2 × 12-bit DAC, same LQFP100 package | Higher clock speed and larger SRAM - enables faster control loops and larger protocol stacks but consumes more power in active mode | Choose for applications needing >24 MHz real-time performance (e.g., servo position control) or extended RAM for Ethernet/USB stacks; verify thermal budget. |
Compared with STM32F072RBT6, the STM32F100VDT7B delivers higher analog integration (dual DACs, temperature sensor) and deterministic timing (Cortex-M3 vs M0); versus STM32F103VCT6, it trades peak performance for lower power consumption and optimized value-line cost structure - making it ideal for cost-sensitive, thermally constrained industrial edge devices.
Availability
STM32F100VDT7B is available at Aetrix Electronics and suitable for industrial motor control interfaces, smart energy metering modules, programmable logic controller (PLC) I/O bases, and medical infusion pump controllers requiring stable component supply across multi-year production cycles.
Supply support for STM32F100VDT7B 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 management ICs, sensors, and automotive-grade components since 1987.
The STM32F100 Value Line targets cost-sensitive industrial and consumer applications requiring robust analog integration, real-time control, and long-term supply stability - emphasizing Flash density, DAC/ADC capability, and 5 V-tolerant I/O in compact packages.
FAQ
What is the maximum operating temperature range for the STM32F100VDT7B?
The STM32F100VDT7B is rated for industrial temperature range: –40 °C to +85 °C. This is confirmed in Section 5.3.1 "General operating conditions" of DS5944 Rev 11, where ambient temperature limits and junction temperature derating curves are specified for all LQFP100 variants.
Does the STM32F100VDT7B support USB device functionality?
No, the STM32F100VDT7B does not include a USB peripheral. Its communication interfaces are limited to USART, UART, I²C, SPI, CAN (not present in F100 series), and CEC - as explicitly listed in Table 2 and Section 2.2.17 of the datasheet. USB support begins with the STM32F103 and higher-series parts.
How many external interrupt lines are available on the STM32F100VDT7B?
The STM32F100VDT7B supports 16 external interrupt/event lines (EXTI0–EXTI15), each configurable to trigger on rising/falling edges or both. All 80 GPIOs can be mapped to these 16 lines via the AFIO_EXTICR registers, enabling flexible wake-up and event handling from any I/O pin.
Is the STM32F100VDT7B pin-compatible with other STM32F100xx devices in LQFP100 package?
Yes, all STM32F100xx devices in LQFP100 (e.g., STM32F100RBT6, STM32F100VBT6, STM32F100VDT7B) share identical pinouts per Figure 4 of DS5944 Rev 11. Differences are limited to Flash size (128–512 KB), SRAM (8–32 KB), and peripheral enablement - allowing hardware reuse across variants with firmware-only adaptation.
STM32F100VDT7B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-LQFP
- Series:
- STM32F1
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 24MHz
- Connectivity:
- I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals:
- DMA, PDR, POR, PVD, PWM, Temp Sensor, WDT
- Number of I/O:
- 80
- Program Memory Size:
- 384KB (384K 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F100VDT7B FAQ
1.How can I place an order for STM32F100VDT7B through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F100VDT7B 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 STM32F100VDT7B reliable?
The price and inventory of STM32F100VDT7B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F100VDT7B is usually 5 days.
3.What payment methods are accepted for STM32F100VDT7B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F100VDT7B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F100VDT7B?
STM32F100VDT7B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F100VDT7B 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 STM32F100VDT7B?
For technical support, including STM32F100VDT7B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F100VDT7B requirements.
6.How does Aetrix verify that STM32F100VDT7B is sourced from the original manufacturer or authorized distributors?
All STM32F100VDT7B 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 STM32F100VDT7B meets industry standards.
7.What is the process for return or replacement of STM32F100VDT7B?
All STM32F100VDT7B units undergo pre-shipment inspection (PSI). If there is an issue with STM32F100VDT7B, 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 STM32F100VDT7B part is unused and in its original packaging.
Return procedure for STM32F100VDT7B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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