STMicroelectronics STM32F103V8H6TR

Overview

STM32F103V8H6TR from STMicroelectronics is a medium-density performance-line Arm® Cortex®-M3 microcontroller featuring 64 KB Flash, 20 KB SRAM, 72 MHz CPU frequency, USB 2.0 full-speed interface, and CAN 2.0B Active support. It integrates dual 12-bit ADCs (1 µs conversion), seven timers including motor-control PWM with dead-time generation, and operates across 2.0–3.6 V supply for industrial sensor node and motor control applications.

For engineers reviewing the STM32F103V8H6TR datasheet, STM32F103V8H6TR pinout, STM32F103V8H6TR application, or STM32F103V8H6TR equivalent, key selection criteria include Flash/SRAM size, USB/CAN coexistence, 72 MHz real-time execution capability, and LQFP100 package compatibility with industrial PCB layout constraints.

Technical Context

The device implements an Arm Cortex-M3 core with Harvard architecture, single-cycle multiplication, hardware division, and nested vectored interrupt controller (NVIC) supporting up to 68 interrupts. Its clock system includes dual oscillators (4–16 MHz HSE + 32 kHz LSE), programmable PLL, and internal 8 MHz/40 kHz RC sources - enabling precise RTC operation and flexible system timing.

DMA supports 7 channels with peripheral arbitration for concurrent transfers across timers, ADCs, SPIs, I²Cs, and USARTs. The memory map allocates dedicated regions for Flash (0x08000000), SRAM (0x20000000), peripheral registers (0x40000000), and bit-band aliasing - ensuring deterministic real-time access and peripheral register atomicity.

Key Specifications

Pinout & Package

LQFP100 package: 100-pin quad flat pack with exposed thermal pad, 0.5 mm pitch, 14 × 14 mm body, RoHS-compliant ECOPACK® construction. Pin 1 marked by dot; pins numbered counterclockwise from top-left corner.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STM32F103C8T6, the STM32F103V8H6TR delivers USB-native connectivity and 43 additional I/Os; versus STM32F103RBH6, it trades 64 KB Flash headroom for lower unit cost while retaining identical real-time performance and industrial interface coverage.

Availability

STM32F103V8H6TR is available at Aetrix Electronics and suitable for industrial motor control, smart energy gateways, automotive body electronics, and medical device interfaces requiring stable component supply and long lifecycle support.

Supply support for STM32F103V8H6TR 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-grade components since 1987.

The STM32F103 product line targets cost-sensitive, high-reliability embedded applications requiring real-time performance, rich analog integration, and industrial communication interfaces - optimized for motor control, PLCs, and human-machine interface subsystems.

FAQ

What is the maximum operating temperature range for STM32F103V8H6TR?

The STM32F103V8H6TR is rated for industrial temperature range: –40°C to +85°C ambient. This is confirmed in Section 5.3.1 of the DS5319 datasheet, with thermal characteristics validated under JEDEC JESD51-2 conditions. The device maintains full specification compliance across this range, including ADC accuracy, USB timing, and Flash write endurance.

Does STM32F103V8H6TR support USB device mode without external components?

Yes - the part integrates a full-speed USB 2.0 transceiver with internal pull-up resistor on PA12 (DP). No external PHY or termination resistors are required for basic USB device operation. However, a 1.5 kΩ pull-up on DP must be enabled via software (USB_CNTR register) and proper PCB routing (90 Ω differential impedance) is mandatory per Section 2.3.20 of the datasheet.

How many independent PWM outputs can be generated simultaneously?

The MCU supports up to 16 independent PWM outputs: three 16-bit general-purpose timers provide up to 4 channels each (12 total), and the motor-control timer adds 6 complementary channels (3 high-side + 3 low-side). All channels are independently configurable for frequency, duty cycle, and dead-time, as detailed in Table 4 and Section 2.3.15 of DS5319 Rev 20.

Is the internal 8 MHz RC oscillator factory-trimmed for accuracy?

Yes - the internal 8 MHz RC oscillator is factory-trimmed to ±1% accuracy at 25°C and 3.3 V, with typical drift of ±2% over the full –40°C to +85°C temperature range. Calibration data is stored in system memory and accessible via RCC_CR register bits, enabling runtime compensation per Section 5.3.7 of the datasheet.