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HomeProductsIntegrated Circuits (ICs)Embedded - MicrocontrollersSTM32F100ZET6B
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STM32F100ZET6B - STMicroelectronics

Manufacturer Part Number
STM32F100ZET6B
Manufacturer
STMicroelectronics
Allelco Part Number
32D-STM32F100ZET6B
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
4,020 pcs available, New & Original
Parts Description
IC MCU 32BIT 512KB FLASH 144LQFP
Package
144-LQFP (20x20)
Data sheet
STM32F100ZET6B.pdf

PCN Packaging

2.73KHz.pdf

PCN Assembly/Origin

2.73KHz.pdf
RoHs Status
ROHS3 Compliant
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In stock: 4020

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Specifications

STM32F100ZET6B Tech Specifications
STMicroelectronics - STM32F100ZET6B technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics - STM32F100ZET6B

Product Attribute Attribute Value
Manufacturer STMicroelectronics
Voltage - Supply (Vcc/Vdd) 2V ~ 3.6V
Supplier Device Package 144-LQFP (20x20)
Speed 24MHz
Series STM32F1
RAM Size 32K x 8
Program Memory Type FLASH
Program Memory Size 512KB (512K x 8)
Peripherals DMA, PDR, POR, PVD, PWM, Temp Sensor, WDT
Package / Case 144-LQFP
Package Tray
Product Attribute Attribute Value
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Number of I/O 112
Mounting Type Surface Mount
EEPROM Size -
Data Converters A/D 16x12b; D/A 2x12b
Core Size 32-Bit Single-Core
Core Processor ARM® Cortex®-M3
Connectivity I²C, IrDA, LINbus, SPI, UART/USART
Base Product Number STM32F100

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.31.0001

Parts Introduction

STM32F100ZET6B Image
STM32F100ZET6B (1)

Manufacturer Part Number

STM32F100ZET6B

Manufacturer

STMicroelectronics

Introduction

The STM32F100ZET6B is a high-performance ARM Cortex-M3 based microcontroller suitable for a range of embedded applications.

Product Features and Performance

32-Bit Single-Core ARM Cortex-M3 Processor

Speed of 24 MHz

Program Memory of 512KB FLASH

32KB x 8 RAM Size

112 I/O pins for versatile connectivity

Multiple Communication Interfaces: I2C, IrDA, LINbus, SPI, UART/USART

Onboard Peripherals: DMA, PDR, POR, PVD, PWM, Temp Sensor, WDT

Analog Modules: A/D 16x12 bit converters, D/A 2x12 bit converters

Integrated Internal Oscillator

Operational from -40°C to +85°C (TA)

Product Advantages

Large number of GPIOs for complex applications

Enhanced power-saving features with PDR and PVD

Advanced control through built-in PWM and Temp Sensor

High-resolution A/D and D/A converters for precise analog signal management

Key Technical Parameters

Core Processor: ARM Cortex-M3

Core Size: 32-Bit

Speed: 24MHz

Program Memory Size: 512KB (512K x 8)

RAM Size: 32K x 8

Number of I/O: 112

Voltage Supply: 2V ~ 3.6V

Data Converters: A/D 16x12b, D/A 2x12b

Operating Temperature: -40°C ~ 85°C

Quality and Safety Features

Robust design to operate under extended temperatures

Watchdog Timer (WDT) to ensure system recovery

Power and Voltage Detectors to protect against system failures

Compatibility

Compatible with various development tools and software

Supports many communication protocols for easy integration into systems

Application Areas

Industrial control systems

Medical devices

Home automation

Automotive electronics

Product Lifecycle

Product Status: Active

Currently not nearing discontinuation, with ongoing manufacturer support

Key Reasons to Choose This Product

Optimized for energy efficiency and low-power operation

High data processing capability with 32-bit architecture

Extensive memory resources for data-intensive applications

Comprehensive peripheral set for enhanced functionality

Robust operation in harsh environmental conditions

Flexible and compatible with various electronics systems

Support from STMicroelectronics for development and troubleshooting

Frequently Asked Questions(FAQ)

What are the key differences between the STM32F100ZET6B and other STM32F100 series variants in terms of memory configuration and package availability?
The STM32F100ZET6B features 512KB of embedded FLASH memory and is packaged in a 144-pin LQFP (20x20) configuration. Compared to lower-density variants like the STM32F100CBT6, which offers only 128KB of FLASH, the ZET6B provides significantly more program storage suitable for complex firmware applications. It also supports a broader range of I/O pins due to the larger package, enabling more peripheral connectivity without requiring pin multiplexing. This makes it particularly advantageous for designs requiring substantial code space and moderate I/O expansion.
How does the internal oscillator performance of the STM32F100ZET6B impact system design when operating at 24MHz across industrial temperature ranges?
The STM32F100ZET6B relies on an internal RC oscillator capable of delivering up to 24MHz, though with typical accuracy around ±1% under nominal conditions. Over the full operating temperature range of -40°C to 85°C, this accuracy may degrade to ±3–5%, depending on calibration and process variation. While sufficient for many non-critical timing applications, this level of drift can affect communication protocols like UART or SPI if not compensated. Designers should consider external crystal oscillators for time-sensitive tasks or implement software-based clock correction where precision matters.
Can the STM32F100ZET6B reliably support USB communication using its built-in peripherals, and what limitations apply?
No, the STM32F100ZET6B does not include a dedicated USB 2.0 full-speed device peripheral. While it supports standard communication interfaces such as UART/USART and SPI, USB functionality must be implemented via bit-banging or external transceivers, which introduces latency and complexity. For true USB host or device operation, designers should select an STM32 variant explicitly featuring USB hardware blocks, such as those in the STM32F103xx family.
In what scenarios would the STM32F100ZET6B be preferable over higher-performance STM32F1 devices despite its lower clock speed of 24MHz?
The STM32F100ZET6B offers a compelling balance of cost and capability for mid-range control applications where peak processing demand remains moderate. Its 512KB FLASH and 32KB RAM suffice for real-time motor control, sensor fusion algorithms, or industrial monitoring systems that don’t require aggressive throughput. At a lower power envelope and with robust peripheral integration—including PWM, ADC, and watchdog timers—it reduces BOM complexity compared to faster parts like the STM32F103RB, which may consume more power and cost more without proportional benefit in many embedded use cases.
How does the voltage supply range of 2V to 3.6V influence power management decisions when integrating the STM32F100ZET6B into battery-powered systems?
The wide supply range enables compatibility with both lithium batteries (~3.0V nominal) and single-cell alkaline packs (~1.5V per cell, though typically regulated), allowing flexible power sourcing. However, the minimum 2V operating threshold means fully discharged Li-ion cells (down to ~2.7V) remain functional, extending usable battery life. Designers must ensure regulators maintain stable output within this window and account for brown-out reset behavior below 2V to prevent erratic operation during low-voltage events.
What are the thermal and soldering considerations for reflowing the STM32F100ZET6B in mass production environments?
As a RoHS-compliant component with an MSL 3 rating, the STM32F100ZET6B must be stored in dry conditions and baked if exposed to moisture beyond 168 hours. During reflow soldering, adherence to JEDEC J-STD-020 profiles is essential—peak temperatures should not exceed 260°C for more than 30 seconds—to avoid damaging the die attach or bond wires. The 144-LQFP package has good thermal conductivity but still requires careful PCB layout with adequate thermal relief to ensure even heating during assembly.
Does the STM32F100ZET6B include any integrated security features, and how does this affect secure bootloader implementation?
No, the STM32F100ZET6B lacks advanced security peripherals such as tamper detection, secure key storage, or write-protect mechanisms found in newer STM32 families. While it supports basic read-out protection (RDP) levels, these offer minimal protection against skilled attackers. Therefore, sensitive applications requiring secure firmware updates or cryptographic operations must implement software-based obfuscation or pair it with external security chips rather than relying solely on MCU-level protections.
How does the presence of a temperature sensor on-chip assist in system reliability monitoring with the STM32F100ZET6B?
The integrated temperature sensor provides real-time junction temperature readings via one of the ADC channels, enabling proactive thermal management. By sampling periodically, the microcontroller can trigger throttling, shut down non-critical tasks, or activate cooling fans based on measured heat. This is especially valuable in enclosed industrial enclosures where ambient temperature fluctuates widely, helping prevent thermal runaway without requiring external sensors or additional components.

Parts with Similar Specifications

The three parts on the right have similar specifications to STMicroelectronics STM32F100ZET6B

Product Attribute STM32F100ZET6BTR STM32F100VET6B STM32F100VET6BTR STM32F100ZDT6BTR
Part Number STM32F100ZET6BTR STM32F100VET6B STM32F100VET6BTR STM32F100ZDT6BTR
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Connectivity - - - -
Data Converters - - - -
Oscillator Type - - - -
EEPROM Size - - - -
Core Processor - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
RAM Size - - - -
Program Memory Type - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Series - - - -
Peripherals - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Speed - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Program Memory Size - - - -
Voltage - Supply (Vcc/Vdd) - - - -
Core Size - - - -
Number of I/O - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42

STM32F100ZET6B Datasheet PDF

Download STM32F100ZET6B pdf datasheets and STMicroelectronics documentation for STM32F100ZET6B - STMicroelectronics.

HTML Datasheet
STM32F100xC,D,E Datasheet.pdf
PCN Packaging
2.73KHz.pdf
PCN Assembly/Origin
2.73KHz.pdf
PCN Design/Specification
STM32F100 DataSheet/Errata Update 22/Apr/2016.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
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Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
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Electrostatic Discharge Protection and Handling

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STM32F100ZET6B Image

STM32F100ZET6B

STMicroelectronics
32D-STM32F100ZET6B

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