STMicroelectronics STM32F103RGT6JTR

Overview

STM32F103RGT6JTR from STMicroelectronics is a high-density ARM® Cortex®-M3 microcontroller operating at 72 MHz, featuring 1 MB Flash, 96 KB SRAM, USB 2.0 full-speed interface, CAN 2.0B controller, and three 12-bit ADCs with 21 channels - deployed in industrial motor control systems requiring real-time PWM generation, sensor fusion, and fieldbus connectivity.

For engineers reviewing the STM32F103RGT6JTR datasheet, STM32F103RGT6JTR pinout, STM32F103RGT6JTR application, or STM32F103RGT6JTR equivalent, key selection criteria include Flash/SRAM size, USB+CAN coexistence, 144-pin LQFP package compatibility, and support for dual 12-bit DACs with triple-sample-and-hold ADC architecture.

Technical Context

The device implements a tightly coupled ARM Cortex-M3 core with Memory Protection Unit (MPU), supporting deterministic interrupt handling via Nested Vectored Interrupt Controller (NVIC) and precise timing through 17 timers-including two 16-bit motor-control PWM timers with dead-time insertion and emergency stop capability.

Its clock system integrates multiple oscillators (4–16 MHz HSE, 8 MHz HSI, 40 kHz LSI, 32.768 kHz LSE), a programmable PLL, and flexible clock tree routing to peripherals; power management includes Sleep/Stop/Standby modes with VBAT-backed RTC and backup registers.

Key Specifications

Pinout & Package

LQFP144 package (20 × 20 mm, 0.5 mm pitch), RoHS-compliant, ECOPACK® certified, rated for 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 STM32F103VGT6, the RGT6 offers 14 more GPIOs and FSMC for display/memory expansion; versus STM32F407VGT6, it trades FPU and speed for lower cost, proven industrial qualification, and identical CAN/USB timing behavior in legacy automotive body electronics.

Availability

STM32F103RGT6JTR is available at Aetrix Electronics and suitable for industrial motor control, smart energy metering, medical infusion pumps, and automotive body control modules requiring stable component supply across extended product lifecycles.

Supply support for STM32F103RGT6JTR 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 devices, sensors, and analog ICs for industrial, automotive, and consumer markets.

This part belongs to the STM32F1 'Performance Line' product family, engineered for cost-sensitive, high-reliability embedded applications demanding rich peripheral integration, industrial temperature tolerance, and long-term supply assurance.

FAQ

What is the maximum operating frequency and associated power supply requirement?

The STM32F103RGT6JTR operates at up to 72 MHz with a core supply voltage of 2.0–3.6 V. At 72 MHz and 3.3 V, typical active current consumption is 36 mA (Flash execution), verified per datasheet Table 14. The internal regulator supports direct connection to standard 3.3 V rails without external LDO sequencing.

Does this MCU support USB device mode without external components?

Yes - it integrates a full-speed USB 2.0 transceiver with internal pull-up resistors on PA12 (DP). Only a single 1.5 kΩ pull-up resistor on DP is required for enumeration; no external PHY, crystal, or level-shifting circuitry is needed for basic HID or CDC implementations.

How many independent ADCs does it have, and what is their synchronization capability?

It contains three independent 12-bit ADCs (ADC1–ADC3), each with 1 µs conversion time and up to 16 channels. They support triple-sample-and-hold mode, enabling simultaneous sampling across all three converters - critical for motor phase current reconstruction in FOC algorithms.

Is the LQFP144 package pinout compatible with other STM32F103 variants?

Yes - all STM32F103xG devices in LQFP144 share identical pinouts and electrical characteristics. Pin-for-pin compatibility extends to STM32F103Zx series, allowing direct substitution when Flash/SRAM requirements match, per ST's full compatibility guarantee in Section 2.2 of DocID16554 Rev 4.