GD32F350RBT6 GigaDevice ARM Cortex-M4 32-bit Microcontroller MCU LQFP-64

GD32F350RBT6 Product Overview

The GD32F350RBT6 is a 32-bit general-purpose microcontroller (MCU) from GigaDevice, built on the ARM Cortex-M4 core and belonging to the GD32F350 Value Line product series. Housed in a LQFP-64(10x10mm) mainstream package with 55 I/O pins， the GD32F350RBT6 delivers efficient performance with a 108MHz maximum frequency and zero-wait-state Flash access for code execution within 64KB. Featuring a Cortex-M4 processor with hardware FPU and full DSP extensions， the GD32F350RBT6 provides 32-bit processing capability at near 8/16-bit MCU cost. With 128KB on-chip Flash and 16KB SRAM， the Flash offers 100,000 erase/write cycles and 20-year data retention. The GD32F350RBT6 is widely applicable in industrial control, motor drives, consumer electronics, communication equipment, and IoT applications.

GD32F350RBT6 Key Features

High-Performance ARM Cortex-M4 Core: The GD32F350RBT6 features an ARM Cortex-M4 processor with FPU and full DSP instruction set， operating at up to 108MHz. The GD32F350RBT6's Harvard architecture with zero-wait-state Flash access within 64KB includes a built-in single-cycle multiplier and hardware divider.

Large Memory Capacity: The GD32F350RBT6 is equipped with 128KB on-chip Flash and 16KB SRAM. Flash endurance of the GD32F350RBT6 is 100,000 cycles and 20-year data retention.

Mainstream LQFP Package: The GD32F350RBT6 comes in a LQFP-64(10x10mm) package with 55 I/O pins， most pins are 5V tolerant.

Wide Voltage & Temperature Range: The GD32F350RBT6 supports 2.6V to 3.6V operating voltage and -40℃ to +85℃ industrial temperature range.

Rich Analog Peripherals: The GD32F350RBT6 integrates a 12-bit ADC (up to 16 channels) and 12-bit DAC. The GD32F350RBT6 features 2 general-purpose comparators CMP for independent use or timer integration.

Comprehensive Timer Resources: The GD32F350RBT6 provides 5×16-bit GPTM, 1×32-bit GPTM, 1×16-bit Advanced Timer, 1×16-bit Basic Timer, 1×24-bit SysTick Timer, and 2×Watchdog Timers.

Extensive Communication Interfaces: The GD32F350RBT6 supports 2×USART (up to 6.75Mbps, LIN/IrDA/SmartCard), 2×SPI (SPI0 configurable as I2S, 8~192kHz audio), 2×I2C (up to 1MHz Fast Plus), USB 2.0 FS OTG (with built-in PHY, external crystal optional), and HDMI-CEC.

Rich On-Chip Resources: The GD32F350RBT6 has a built-in on-chip temperature sensor, DMA, RTC, Touch Key (TSI) , internal oscillator, IrDA, and LIN bus protocol support.

Multiple Low-Power Modes: The GD32F350RBT6 offers various power-saving modes for flexible optimization between wake-up latency and power consumption.

Flexible Boot Modes: The GD32F350RBT6 supports SWD debug interface with BOOT0 pin for three boot modes: Flash, System Memory ISP (USART0/USART1), and SRAM.

GD32F350RBT6 Applications

With its exceptional cost-performance, Cortex-M4 processing power, and rich peripherals, the GD32F350RBT6 is widely used in:

Industrial Control: The GD32F350RBT6 enables PLCs, industrial automation, VFDs, power monitoring and alarm systems

Motor Control & Drives: The GD32F350RBT6 is ideal for BLDC motor control, variable-frequency speed control, servo drives

Consumer Electronics: The GD32F350RBT6 is suitable for smart home, handheld devices, gaming peripherals, small appliances

IoT Nodes: The GD32F350RBT6 can be used in smart sensors, data acquisition and processing terminals

Communication Equipment: The GD32F350RBT6 is well-suited for USB OTG devices, communication modules

Medical Devices: The GD32F350RBT6 is applied in portable medical instruments

GD32F350RBT6 Key Advantages

128KB Flash + 16KB SRAM: The GD32F350RBT6's top-tier storage configuration in the GD32F350 series supports complex applications with large algorithms, audio buffers, and multi-channel acquisition.

Cortex-M4 + FPU/DSP High Performance: The GD32F350RBT6 features hardware FPU and full DSP extensions at 108MHz with zero-wait-state Flash access.

55 I/O Pins: The GD32F350RBT6's LQFP-64 package offers 55 I/O pins with 5V tolerance for complex systems.

USB 2.0 FS OTG with Built-in PHY: The GD32F350RBT6 supports USB 2.0 FS OTG/Host/Device with built-in PHY and external crystal optional operation.

TSI Touch Key + Dual SPI + 2×Comparators: The GD32F350RBT6 integrates TSI interface, 2×SPI (SPI0 configurable as I2S), and 2×general-purpose comparators.

High Reliability: Flash endurance of the GD32F350RBT6 is 100,000 cycles and 20-year data retention with industrial-grade -40℃ to +85℃ temperature range.

Mature Ecosystem: The GD32F350RBT6 supports Keil MDK, IAR EWARM, GCC with official firmware library and abundant resources.

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FAQ

1 What is the GD32F350RBT6 chip
The GD32F350RBT6 is a high performance 32 bit microcontroller from GigaDevice based on the ARM Cortex M4 core featuring an LQFP 64 package with excellent computing performance and cost effectiveness.

2 What are the core frequency Flash and SRAM capacities
The GD32F350RBT6 reaches a maximum main frequency of 108MHz with 128KB of Flash memory and 16KB of SRAM onboard meeting the execution requirements of medium scale embedded control programs.

3 What is the package type pin count and physical size
The GD32F350RBT6 adopts an LQFP 64 package with 64 pins and a standard dimension of 10 by 10 millimeters with reasonable pin layout balancing rich peripherals and PCB soldering convenience.

4 What are the operating voltage and temperature ranges
The GD32F350RBT6 operates at 2 point 6V to 3 point 6V and the temperature range meets the industrial standard of minus 40 degrees Celsius to plus 85 degrees Celsius ensuring excellent environmental tolerance.

5 Which mainstream chip can this chip replace
The GD32F350RBT6 is highly compatible with the STM32F103RBT6 in hardware pinout and low level software allowing for a high performance domestic replacement without changing the core PCB design.

6 What peripheral communication interfaces does it support
The GD32F350RBT6 integrates multiple USART serial ports I2C interfaces SPI interfaces supports CAN 2.0B USB 2.0 FS OTG and features built in 12 bit ADC DAC and advanced timers.

7 What IDEs and programming methods are supported
The GD32F350RBT6 fully supports mainstream embedded IDEs such as Keil MDK IAR EWARM and GCC and the official standard peripheral libraries and HAL libraries are comprehensive for rapid project migration and development.

8 What application scenarios is this chip suitable for
With its high performance M4 core and abundant interfaces the GD32F350RBT6 is widely used in industrial automation control motor drives IoT communication nodes and various smart consumer electronics.

9 What low power management modes does it support
The GD32F350RBT6 supports three low power modes including sleep deep sleep and standby which can be flexibly switched based on actual system load to effectively reduce overall power consumption during idle states.

10 What debugging and firmware download interfaces are supported
The GD32F350RBT6 supports both the standard SWD serial wire debug interface and the JTAG interface allowing for online emulation breakpoint debugging and program burning through mainstream emulators such as J Link and ST Link during development.