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STMicroelectronics STM32F100RDT6BTR
- Part No.:
- STM32F100RDT6BTR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32F100RDT6BTR.pdf
- Description:
- IC MCU 32BIT 384KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,591
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Product details
Overview
STM32F100RDT6BTR from STMicroelectronics is a high-density value-line Arm® Cortex®-M3 microcontroller featuring 384 KB Flash, 32 KB SRAM, 24 MHz max CPU frequency, dual 12-bit DACs, and 16-channel 12-bit ADC with temperature sensor - deployed in industrial HMI control panels requiring real-time analog I/O and LCD interface support.
For engineers reviewing the STM32F100RDT6BTR datasheet, STM32F100RDT6BTR pinout, STM32F100RDT6BTR application, or STM32F100RDT6BTR equivalent, key selection considerations include Flash/SRAM sizing for firmware+graphics buffers, LQFP64 package constraints, DAC/ADC channel count for sensor actuation loops, and FSMC/LCD parallel interface compatibility with monochrome or segment-based displays.
Technical Context
The STM32F100RDT6BTR implements an Arm Cortex-M3 core with single-cycle multiply and hardware divide, executing at up to 24 MHz (1.25 DMIPS/MHz), and integrates a flexible static memory controller (FSMC) supporting SRAM, PSRAM, and NOR with 4 chip selects. Its clock system includes dual oscillators (4–24 MHz HSE and 32.768 kHz LSE), internal 8 MHz RC, and PLL for CPU clock derivation.
It features a nested vectored interrupt controller (NVIC), 12-channel DMA servicing timers, ADC, SPI, I²C, USART, and DACs, plus dedicated peripherals including seven 16-bit general-purpose timers, one advanced-control timer with dead-time generation, two watchdogs, SysTick, and CEC interface - all operating within 2.0–3.6 V supply range with POR/PDR/PVD and multiple low-power modes (Sleep/Stop/Standby).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M3, 24 MHz max - enables deterministic real-time control with 1.25 DMIPS/MHz performance for closed-loop motor or sensor processing. |
| Flash Memory | 384 KB - sufficient for bootloader + application firmware + graphics assets in embedded HMI applications with local display rendering. |
| SRAM | 32 KB - supports frame buffer allocation for 128×64 monochrome LCD via parallel interface or runtime data structures for multi-tasking RTOS. |
| ADC | 1 × 12-bit, 1.2 µs conversion, 16 channels - provides simultaneous sampling of temperature, voltage, and current sensors with integrated temperature sensor calibration. |
| DAC | 2 × 12-bit - enables precise analog output for reference voltage generation, LED dimming control, or actuator biasing without external DAC ICs. |
| Timers | Up to 16 timers including 1 advanced-control (6-channel PWM + dead time), 2 basic (DAC trigger), and 2 watchdogs - supports motor gate drive, pulse-width modulation, and safety-critical timeout monitoring. |
| Communication Interfaces | 3 USARTs (LIN/IrDA), 2 I²C, 3 SPI (12 Mbit/s), 1 CEC - enables connectivity to UART-based sensors, I²C EEPROMs, SPI OLEDs, and consumer IR remotes. |
| Package | LQFP64 (10 × 10 mm) - compact footprint suitable for space-constrained industrial control modules with 51 I/O pins, 5 V-tolerant on most inputs. |
Pinout & Package
LQFP64 (10 × 10 mm, 0.5 mm pitch) with exposed thermal pad; 64-pin quad flat package optimized for reflow assembly and thermal dissipation in industrial ambient conditions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 2.0–3.6 V supply rails with decoupling requirements per datasheet Section 5.3.6; separate analog/digital domains supported. |
| PA0–PA15, PB0–PB15, PC13–PC15, PD0–PD2 | General-purpose I/O | 51 configurable GPIOs, most 5 V-tolerant, mappable to 16 external interrupt vectors - enables direct connection to buttons, LEDs, encoders, and digital sensors. |
| PA1–PA3, PA4–PA7, PB0–PB1 | ADC input channels | 16-channel 12-bit ADC inputs with internal temperature sensor on PA0 - supports analog front-end for environmental monitoring or power rail sensing. |
| PA4–PA5, PA6–PA7 | DAC outputs | Two independent 12-bit DAC outputs (DAC1_OUT1/DAC2_OUT2) - used for programmable reference voltages or analog waveform generation. |
| PD0–PD15 | FSMC/LCD data/address bus | Parallel 8080/6800 mode interface supporting 8-/16-bit LCD modules or external SRAM expansion up to 64 MB address space. |
| NRST | Reset input | Active-low reset with internal pull-up; accepts external reset pulses or watchdog timeout assertion - critical for system recovery in unattended operation. |
Key Features
| Feature | Design Value |
|---|---|
| Flexible Static Memory Controller (FSMC) | Supports SRAM, PSRAM, and NOR flash with 4 chip selects - enables cost-effective external memory expansion for GUI frame buffers or firmware updates. |
| LCD Parallel Interface | 8080/6800 mode, 8-/16-bit data bus - directly drives segment, character, or graphical LCDs without external controller, reducing BOM count. |
| Low-Power Operation | Sleep/Stop/Standby modes with VBAT backup for RTC and registers - extends battery life in portable HMIs or maintains timekeeping during main power loss. |
| Serial Wire Debug (SWD) | 2-pin debug interface (SWDIO/SWCLK) - enables full JTAG-level debugging and programming with minimal PCB routing overhead. |
| CRC Calculation Unit | Hardware-accelerated CRC-32 generator - ensures fast integrity verification of firmware images or communication payloads in safety-critical updates. |
| 96-bit Unique ID | Factory-programmed serial number - supports device authentication, license binding, or secure boot key derivation in production firmware. |
Applications
| Industrial HMI Panel | Smart Sensor Node |
|---|---|
|
Use Scenario: Compact wall-mounted control panel with monochrome LCD, tactile buttons, and analog sensor inputs for HVAC zone monitoring. IC Role / Device Role / Timing Role: Main application MCU managing display refresh (via FSMC/LCD interface), reading thermistor/voltage inputs (ADC), generating fan speed references (DAC), and communicating via UART to building management system. Use Value: Integrated LCD interface and dual DAC eliminate external driver ICs; 384 KB Flash accommodates localized UI logic and fault logging without external storage. |
Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity (via I²C), and supply voltage, transmitting data over UART to gateway. IC Role / Device Role / Timing Role: System-on-chip controller performing periodic ADC sampling, RTC-triggered wake-up, low-power sleep cycling, and UART packet formatting with CRC-32 checksum. Use Value: Standby current <1.7 µA (typ.) and VBAT-backed RTC enable multi-year battery life; integrated temperature sensor reduces component count. |
| Motor Control Interface | CEC-Controlled Appliance |
|
Use Scenario: Brushless DC motor driver board requiring PWM generation, current sensing, and emergency stop signaling in industrial actuators. IC Role / Device Role / Timing Role: Timing and control MCU providing six-channel complementary PWM with programmable dead time, ADC-based current feedback, and hardware emergency stop input handling. Use Value: Advanced-control timer supports synchronous rectification and phase-shifted PWM; 16-bit resolution ensures fine-grained torque control precision. |
Use Scenario: Consumer appliance (e.g., smart oven) accepting IR remote commands via HDMI CEC protocol for power/on/off and mode selection. IC Role / Device Role / Timing Role: CEC protocol handler decoding incoming IR frames, mapping commands to GPIO-controlled relays or display states, and generating ACK/NACK responses. Use Value: Dedicated CEC peripheral offloads bit-level timing from firmware; eliminates need for external CEC transceiver IC and associated level-shifting components. |
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, no FSMC or LCD interface | Lacks parallel LCD/FSMC support; lower Flash/SRAM; targets simpler control tasks without display or external memory | Select when display interface is unnecessary and cost reduction outweighs memory/peripheral needs. |
| STM32F103RBT6 | Cortex-M3, 72 MHz, 128 KB Flash, 20 KB SRAM, same LQFP64 package but no DAC or FSMC | Higher CPU speed but smaller memory; lacks dual DAC and FSMC - unsuitable for analog output or external SRAM-based GUIs | Choose only if higher clock rate is critical and DAC/FSMC functionality is implemented externally. |
Compared with STM32F100RDT6BTR, STM32F072RBT6 trades display/memory capability for lower cost and power, while STM32F103RBT6 prioritizes CPU throughput over analog and memory interface integration - making the RDT6BTR uniquely suited for cost-sensitive, display-enabled industrial controllers with mixed-signal requirements.
Availability
STM32F100RDT6BTR is available at Aetrix Electronics and suitable for industrial HMI panels, smart sensor nodes, motor interface modules, and CEC-enabled appliances requiring stable component supply across extended production lifecycles.
Supply support for STM32F100RDT6BTR 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 semiconductors since 1987.
The STM32F100 Value Line targets cost-sensitive industrial and consumer applications requiring balanced performance, analog integration, and display support - emphasizing Flash density, DAC/ADC capability, and FSMC/LCD interface in compact packages.
FAQ
What is the maximum operating frequency and corresponding power consumption in Run mode?
The STM32F100RDT6BTR operates at up to 24 MHz. At 24 MHz with code executing from Flash, typical current consumption is 12.2 mA (VDD = 3.3 V, TA = 25 °C), per Table 13 in DS5944 Rev 11. This includes active CPU, flash, and peripheral clocks - actual draw depends on enabled peripherals and I/O loading.
Does this MCU support external memory expansion, and what interfaces are available?
Yes - it integrates a Flexible Static Memory Controller (FSMC) supporting SRAM, PSRAM, and NOR flash with four chip selects. It provides asynchronous and synchronous read/write timings for non-multiplexed and multiplexed configurations, enabling up to 64 MB address space for external frame buffers or firmware storage.
How many analog-to-digital converter channels does the STM32F100RDT6BTR provide, and what is their resolution?
It includes one 12-bit ADC with up to 16 input channels (PA0–PA7, PB0–PB1, PC0–PC5), with conversion time of 1.2 µs and input voltage range of 0–3.6 V. The integrated temperature sensor is connected to channel ADC1_IN16 and calibrated at factory for ±1.5 °C accuracy over –40 to 85 °C.
Is the LQFP64 package RoHS-compliant and lead-free?
Yes - the STM32F100RDT6BTR in LQFP64 packaging is RoHS-compliant and lead-free, meeting EU Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level 3 (MSL-3) requirements. Full compliance documentation is available in ST's official product change notices and material declarations.
STM32F100RDT6BTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-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:
- 24MHz
- Connectivity:
- I2C, IrDA, LINbus, SPI, UART/USART
- Peripherals:
- DMA, PDR, POR, PVD, PWM, Temp Sensor, WDT
- Number of I/O:
- 51
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32F100RDT6BTR FAQ
1.How can I place an order for STM32F100RDT6BTR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32F100RDT6BTR 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 STM32F100RDT6BTR reliable?
The price and inventory of STM32F100RDT6BTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32F100RDT6BTR is usually 5 days.
3.What payment methods are accepted for STM32F100RDT6BTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32F100RDT6BTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32F100RDT6BTR?
STM32F100RDT6BTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32F100RDT6BTR 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 STM32F100RDT6BTR?
For technical support, including STM32F100RDT6BTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32F100RDT6BTR requirements.
6.How does Aetrix verify that STM32F100RDT6BTR is sourced from the original manufacturer or authorized distributors?
All STM32F100RDT6BTR 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 STM32F100RDT6BTR meets industry standards.
7.What is the process for return or replacement of STM32F100RDT6BTR?
All STM32F100RDT6BTR units undergo pre-shipment inspection (PSI). If there is an issue with STM32F100RDT6BTR, 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 STM32F100RDT6BTR part is unused and in its original packaging.
Return procedure for STM32F100RDT6BTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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