STMicroelectronics STM32F103ZEH7TR

Overview

STM32F103ZEH7TR from STMicroelectronics is a high-density performance-line Arm® Cortex®-M3 microcontroller featuring 512 KB Flash, 64 KB SRAM, USB 2.0 full-speed interface, CAN 2.0B controller, and triple 12-bit ADCs with 21 channels - deployed in industrial motor control systems requiring real-time PWM generation, analog sensing, and fieldbus connectivity.

For engineers reviewing the STM32F103ZEH7TR datasheet, STM32F103ZEH7TR pinout, STM32F103ZEH7TR application, or STM32F103ZEH7TR equivalent, key selection criteria include Flash/SRAM capacity, LFBGA144 package compatibility, 72 MHz CPU clock with hardware division, USB/CAN dual-interface support, and 112 I/O count with 5 V tolerance.

Technical Context

The device integrates an Arm Cortex-M3 core with nested vectored interrupt controller (NVIC), flexible static memory controller (FSMC) supporting NAND/NOR/PSRAM, and parallel LCD interface (8080/6800 modes). It implements a multi-source clock system with 4–16 MHz HSE, 8 MHz HSI, and 40 kHz LSI oscillators plus PLL for precise frequency synthesis.

Peripheral architecture includes 12-channel DMA servicing timers, ADCs, DACs, SPI/I2S, USARTs, and USB; two 12-bit DACs support audio waveform generation; three 12-bit ADCs operate at 1 µs conversion time with triple-sample-and-hold and integrated temperature sensor.

Key Specifications

Pinout & Package

LFBGA144 package (10 × 10 mm, 0.8 mm pitch), RoHS-compliant, ECOPACK® certified - optimized for high-density industrial PCB layouts with thermal pad for enhanced power dissipation during sustained 72 MHz operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F103ZEH7TR, the STM32F103VET6 offers identical functionality in a larger, more manufacturable package but forfeits FSMC-driven external memory scalability; the STM32F407VGT6 delivers superior compute throughput and precision at the expense of power efficiency, pin compatibility, and real-time determinism in hard-deadline motor control loops.

Availability

STM32F103ZEH7TR is available at Aetrix Electronics and suitable for industrial motor drives, smart energy meters, programmable logic controller modules, and medical infusion pumps requiring stable component supply across extended production lifecycles.

Supply support for STM32F103ZEH7TR 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, specializing in microcontrollers, power management, sensors, and automotive ICs with strong industrial and automotive qualification heritage.

The STM32F103 performance line targets cost-sensitive, high-reliability embedded applications demanding rich analog integration, real-time responsiveness, and fieldbus connectivity - especially in factory automation and energy infrastructure.

FAQ

What is the maximum operating temperature range for STM32F103ZEH7TR?

The STM32F103ZEH7TR is rated for industrial temperature range: –40 °C to +85 °C ambient. Its LFBGA144 package features a thermal pad enabling reliable operation at 72 MHz under continuous load when PCB thermal vias are implemented per ST's AN4879 guidelines.

Does STM32F103ZEH7TR support USB device mode without external PHY?

Yes - it integrates a full-speed USB 2.0 device transceiver with internal pull-up resistors and crystal-less operation capability using the internal 48 MHz PLL clock derived from HSE or HSI. No external PHY or oscillator is required for basic HID or CDC implementations.

How many independent PWM channels can be generated simultaneously?

Up to 24 independent PWM outputs are possible: four 16-bit general-purpose timers provide up to 16 channels (4 × 4), two motor-control timers add 8 channels (2 × 4), and the basic timers contribute 2 more - all synchronized via trigger routing and supporting center-aligned or edge-aligned modes.

Is the internal temperature sensor calibrated at factory?

Yes - the on-die temperature sensor is factory-calibrated with slope and offset stored in system memory (0x1FFFF7AC–0x1FFFF7B0). Software reads these values to compute absolute temperature with ±1.5°C typical accuracy across the –40 °C to +85 °C range.