Mainstream Value line, ARM Cortex-M3 MCU with 16 Kbytes Flash, 24 MHz CPU, motor control and CEC functions

The STM32F100x4, STM32F100x6, STM32F100x8 and STM32F100xB microcontrollers incorporate the high-performance ARM®Cortex®-M3 32-bit RISC core operating at a 24 MHz frequency, high-speed embedded memories (Flash memory up to 128 Kbytes and SRAM up to 8 Kbytes), and an extensive range of enhanced peripherals and I/Os connected to two APB buses. All devices offer standard communication interfaces (up to two I2Cs, two SPIs, one HDMI CEC, and up to three USARTs), one 12-bit ADC, two 12-bit DACs, up to six general-purpose 16-bit timers and an advanced-control PWM timer.

The STM32F100xx low- and medium-density devices operate in the – 40 to + 85 °C and – 40 to + 105 °C temperature ranges, from a 2.0 to 3.6 V power supply.

A comprehensive set of power-saving mode allows the design of low-power applications.

These microcontrollers include devices in three different packages ranging from 48 pins to 100 pins. Depending on the device chosen, different sets of peripherals are included.

These features make these microcontrollers suitable for a wide range of applications such as application control and user interfaces, medical and hand-held equipment, PC and gaming peripherals, GPS platforms, industrial applications, PLCs, inverters, printers, scanners, alarm systems, video intercoms, and HVACs.

Key Features

  • Core: ARM® 32-bit Cortex® -M3 CPU
    • 24 MHz maximum frequency,1.25 DMIPS/MHz (Dhrystone 2.1) performance
    • Single-cycle multiplication and hardware division
  • Memories
    • 16 to 128 Kbytes of Flash memory
    • 4 to 8 Kbytes of SRAM
  • Clock, reset and supply management
    • 2.0 to 3.6 V application supply and I/Os
    • POR, PDR and programmable voltage detector (PVD)
    • 4-to-24 MHz crystal oscillator
    • Internal 8 MHz factory-trimmed RC
    • Internal 40 kHz RC
    • PLL for CPU clock
    • 32 kHz oscillator for RTC with calibration
  • Low power
    • Sleep, Stop and Standby modes
    • VBAT supply for RTC and backup registers
  • Debug mode
    • Serial wire debug (SWD) and JTAG interfaces
  • DMA
    • 7-channel DMA controller
    • Peripherals supported: timers, ADC, SPIs, I2 Cs, USARTs and DACs
  • 1 × 12-bit, 1.2 μs A/D converter (up to 16 channels)
    • Conversion range: 0 to 3.6 V
    • Temperature sensor
  • 2 × 12-bit D/A converters
  • Up to 80 fast I/O ports
    • 37/51/80 I/Os, all mappable on 16 external interrupt vectors and almost all 5 V-tolerant
  • Up to 12 timers
    • Up to three 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter
    • 16-bit, 6-channel advanced-control timer: up to 6 channels for PWM output, dead time generation and emergency stop
    • One 16-bit timer, with 2 IC/OC, 1 OCN/PWM, dead-time generation and emergency stop
    • Two 16-bit timers, each with IC/OC/OCN/PWM, dead-time generation and emergency stop
    • 2 watchdog timers (Independent and Window)
    • SysTick timer: 24-bit downcounter
    • Two 16-bit basic timers to drive the DAC
  • Up to 8 communications interfaces
    • Up to two I2 C interfaces (SMBus/PMBus)
    • Up to 3 USARTs (ISO 7816 interface, LIN, IrDA capability, modem control)
    • Up to 2 SPIs (12 Mbit/s)
    • Consumer electronics control (CEC) interface
  • CRC calculation unit, 96-bit unique ID
  • ECOPACK® packages

Circuit Diagram



Technical Documentation

Product Specifications
Description Version Size
DS6517 DS6517: Low & medium-density value line, advanced ARM®-based 32-bit MCU with 16 to 128 KB Flash, 12 timers, ADC, DAC & 8 comm interfaces 8.0 1 MB
Application Notes
Description Version Size
AN3126 AN3126: Audio and waveform generation using the DAC in STM32 microcontrollers 2.0 829 KB
AN4775 AN4775: Basics and low-cost solution proposals to move from legacy USB2.0 connector to USB Type-C™ connector with STM32 devices 1.0 443 KB
AN1709 AN1709: EMC design guide for ST microcontrollers 2.0 843 KB
AN1181 AN1181: Electrostatic discharge sensitivity measurement 1.6 49 KB
AN4566 AN4566: Extending the DAC performance of STM32 microcontrollers 2.0 365 KB
AN4776 AN4776: General-purpose timer cookbook 1.0 1 MB
AN2586 AN2586: Getting started with STM32F10xxx hardware development 7.0 416 KB
AN4750 AN4750: Handling of soft errors in STM32 applications 2.1 410 KB
AN4803 AN4803: High-speed SI simulations using IBIS and board-level simulations using HyperLynx SI on STM32 32-bit ARM® Cortex® MCUs 1.1 2 MB
AN2834 AN2834: How to get the best ADC accuracy in STM32Fx Series and STM32L1 Series devices 2.1 845 KB
AN4229 AN4229: How to implement a vocoder solution using STM32 microcontrollers 1.0 466 KB
AN4838 AN4838: Managing memory protection unit (MPU) in STM32 MCUs 1.0 284 KB
AN3070 AN3070: Managing the Driver Enable signal for RS-485 and IO-Link communications with the STM32™’s USART 1.3 191 KB
AN3427 AN3427: Migrating a microcontroller application from STM32F1 to STM32F2 series 1.1 376 KB
AN4088 AN4088: Migrating between STM32F1 and STM32F0 series microcontrollers 3.0 1 MB
AN4228 AN4228: Migrating from STM32F1 to STM32F3 microcontrollers 5.0 835 KB
AN3364 AN3364: Migration and compatibility guidelines for STM32 microcontroller applications 3.1 127 KB
AN4904 AN4904: Migration of microcontroller applications from STM32F1 Series to STM32F4 Access lines 1.0 344 KB
AN4649 AN4649: Migration of microcontroller applications from STM32F1 Series to STM32L4 Series 3.0 686 KB
AN3422 AN3422: Migration of microcontroller applications from STM32F1 to STM32L1 series 2.1 312 KB
AN2867 AN2867: Oscillator design guide for STM8S, STM8A and STM32 microcontrollers 10.0 2 MB
AN3108 AN3108: STLM75 firmware library for the STM32F10x 1.2 785 KB
AN4013 AN4013: STM32 cross-series timer overview 6.0 555 KB
AN3128 AN3128: STM32 embedded graphic objects/touchscreen library 5.1 4 MB
AN2606 AN2606: STM32 microcontroller system memory boot mode 28.0 3 MB
AN3429 AN3429: STM32 proprietary code protection overview 1.1 60 KB
AN4724 AN4724: STM32Cube firmware examples for STM32F1 Series 1.0 292 KB
AN2945 AN2945: STM8S and STM32™ MCUs: a consistent 8/32-bit product line for painless migration 1.3 212 KB
AN4076 AN4076: Two or three shunt resistor based current sensing circuit design in 3-phase inverters 1.6 1 MB
AN3155 AN3155: USART protocol used in the STM32 bootloader 7.0 617 KB
AN4277 AN4277: Using STM32 device PWM shut-down features for motor control and digital power conversion 4.0 834 KB
AN4655 AN4655: Virtually increasing the number of serial communication peripherals in STM32 applications 1.1 338 KB
Technical Notes & Articles
Description Version Size
TN1163 TN1163: Description of WLCSP for microcontrollers and recommendations for its use 4.0 1 MB
TN0830 TN0830: How to use EWARM 6.2x with projects built with EWARM 6.1 and previous versions 1.2 97 KB
TN0516 TN0516: Overview of the STM32F0x/F100xx/F103xx and STM32F2xx/F30x/F4xx MCUs PMSM single/dual FOC SDK V4.0 4.0 285 KB
TN1204 TN1204: Tape and reel shipping media for STM32 microcontrollers in BGA packages 2.1 745 KB
TN1205 TN1205: Tape and reel shipping media for STM8 and STM32 microcontrollers in FPN packages 3.0 753 KB
TN1206 TN1206: Tape and reel shipping media for STM8 and STM32 microcontrollers in QFP packages 3.0 830 KB
TN1207 TN1207: Tape and reel shipping media for STM8 and STM32 microcontrollers in SO packages 1.0 755 KB
TN1208 TN1208: Tape and reel shipping media for STM8 and STM32 microcontrollers in TSSOP and SSOP packages 1.0 743 KB
User Manuals
Description Version Size
UM1561 UM1561: STEVAL-ISV003V1: firmware user manual 1.0 967 KB
Reference Manuals
Description Version Size
RM0041: STM32F100xx 高性能 ARM ベース 32 ビット MCU 3.0 7 MB
RM0041 RM0041: STM32F100xx advanced ARM®-based 32-bit MCUs 5.0 8 MB
Programming Manuals
Description Version Size
PM0063 PM0063: STM32F100xx value line Flash programming 2.2 360 KB
PM0056 PM0056: STM32F10xxx/20xxx/21xxx/L1xxxx Cortex-M3 programming manual 5.1 4 MB
Errata Sheets
Description Version Size
ES093 ES093: STM32F100x4, STM32F100x6, STM32F100x8 and STM32F100xB low and medium-density value line device limitations 6.0 484 KB

HW Model & CAD Libraries

HW Model & CAD Libraries
Description Version Size
STM32 F1 series IBIS models 1.0 308 KB
STM32F1 Boundary Scan Description Language (BSDL) files 2.0 156 KB

Presentations & Training Material

Description Version Size
STM32 - 32-bit ARM Cortex-M MCUs 3.0 1 MB
STM32 Embedded Software overview 2.3.0 777 KB
STM32 and STM8 Functional Safety Packages 2 1 MB
STM32 and STM8 embedded software solutions 2.0 2 MB

Publications and Collaterals

Description Version Size
Get ready for the largest IoT development ecosystem 16.08 721 KB
STM32 Nucleo boards 16.07 1 MB
STM32 for makers Releasing your creativity 16.09 1 MB
Description Version Size
STM32™ 32-bit MCU family - Leading supplier of ARM® Cortex®-M microcontrollers 16.02 1 MB
STM32 Motor control 1.0 975 KB
White Papers
Description Version Size
STM32 More Than a Core - Circuit Cellar, Tom Cantrell 1.0 355 KB

Quality & Reliability

Product Certifications
Description Version Size
STM32 CAN conformance test authentication sheet 1.0 182 KB
VDE Certification for STM32 Class B 1.0 1 MB

Tools and Software

Development Tools
Embedded Software
Evaluation Tools
Hardware Development Tools
Software Development Tools
Evaluation Tool Software
MCUs Embedded Software
Product Evaluation Tools
Solution Evaluation Tools

Sample & Buy

Part Number Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STM32F100C4T6BTR LQFP 48 7x7x1.4 Tape And Reel -40 85 Active 1.319 10000 NEC EAR99 MALAYSIA MORE INFO DISTRIBUTOR AVAILABILITY
STM32F100C4T7B LQFP 48 7x7x1.4 Tray -40 105 Active 1.411 10000 NEC EAR99 CHINA MORE INFO DISTRIBUTOR AVAILABILITY

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STM32F100C4T6BTR ActiveLQFP 48 7x7x1.4IndustrialEcopack2 0 0
STM32F100C4T6B ActiveLQFP 48 7x7x1.4IndustrialEcopack2 0 0
STM32F100C4T7B ActiveLQFP 48 7x7x1.4IndustrialEcopack2 0 0

(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.