STMicroelectronics STM32F100ZET6BTR

Overview

STM32F100ZET6BTR from STMicroelectronics is a high-density value-line Arm® Cortex®-M3 microcontroller in LQFP144 package, featuring 512 KB Flash, 32 KB SRAM, 2×12-bit DACs, 1×12-bit ADC (16-channel), and up to 112 I/Os. It operates at 24 MHz with SWD/JTAG debug support and targets embedded control applications requiring integrated analog peripherals and LCD interface capability.

For engineers reviewing the STM32F100ZET6BTR datasheet, STM32F100ZET6BTR pinout, STM32F100ZET6BTR application, or STM32F100ZET6BTR equivalent, key selection criteria include Flash/SRAM size, DAC/ADC channel count, LQFP144 pin compatibility, FSMC interface support for external memory, and RTC with VBAT backup capability.

Technical Context

The device 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 dual oscillators (8 MHz HSI, 32 kHz LSE), PLL for CPU clock generation, and programmable voltage detector (PVD) for supply monitoring.

Peripheral architecture includes a flexible static memory controller (FSMC) supporting SRAM, PSRAM, and NOR flash across four chip selects; parallel LCD interface (8080/6800 modes); and 11 communication interfaces - 3 USARTs, 2 UARTs, 3 SPIs, 2 I²Cs, and CEC - all mapped to remappable GPIOs with 5 V-tolerant capability on most pins.

Key Specifications

Pinout & Package

LQFP144 (20 × 20 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, industrial temperature range (–40°C to +85°C).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with STM32F103ZET6, this part trades CPU speed for integrated display and memory expansion capabilities; versus STM32F072ZBT6, it delivers higher analog integration and memory capacity at the expense of power efficiency and bill-of-materials simplicity.

Availability

STM32F100ZET6BTR is available at Aetrix Electronics and suitable for industrial HMI panels, smart energy meters, PLC I/O modules, and home appliance motor controllers requiring stable component supply, long-term lifecycle assurance, and qualified industrial-grade packaging.

Supply support for STM32F100ZET6BTR 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.

This device belongs to the STM32F100 Value Line - designed specifically for cost-sensitive industrial and consumer applications demanding rich analog integration, LCD support, and robust peripheral sets without premium performance overhead.

FAQ

What is the maximum operating frequency and associated performance metric?

The STM32F100ZET6BTR runs at a maximum CPU frequency of 24 MHz, delivering 30 DMIPS (Dhrystone 2.1) performance. This is achieved using the Arm Cortex-M3 core with single-cycle multiply and hardware divide units. The core's nested vectored interrupt controller (NVIC) ensures low-latency response to real-time events, making it suitable for deterministic control loops in industrial and appliance applications.

Does this MCU support external memory expansion, and what types are compatible?

Yes, it features a Flexible Static Memory Controller (FSMC) with four independent chip select lines supporting asynchronous and synchronous SRAM, PSRAM, and NOR flash memory. Supported configurations include non-multiplexed and multiplexed address/data buses, with timing parameters defined in the datasheet for read/write cycles up to 144 MHz bus clock. This enables expansion of program storage or data buffers beyond on-chip Flash and SRAM limits.

How many analog-to-digital and digital-to-analog converter channels does it provide?

The device integrates one 12-bit ADC with up to 16 external input channels and a built-in temperature sensor, plus two independent 12-bit DACs. The ADC supports conversion times as fast as 1.2 µs and operates across the full 0–3.6 V input range. Each DAC offers buffered voltage output with configurable trigger sources (timers, software), enabling precise analog signal generation for calibration, biasing, or waveform synthesis.

Is the LQFP144 package RoHS-compliant and rated for industrial temperature operation?

Yes, the STM32F100ZET6BTR in LQFP144 package is RoHS-compliant and specified for industrial temperature operation from –40°C to +85°C. Its mechanical dimensions are 20 × 20 mm with 0.5 mm lead pitch and an exposed thermal pad for enhanced heat dissipation. The package meets JEDEC standard MS-026 for surface-mount assembly and is qualified per AEC-Q100 stress test requirements for reliability in harsh environments.