embedded-processors-controllers

GD32F103

Full part number: GD32F103RFT6

Key datasheet specifications and the closest alternatives, ranked by parametric similarity and grounded in the manufacturer datasheet.

01 — Overview

This datasheet covers the GD32F103xx series of 32-bit Arm Cortex-M3 microcontrollers manufactured by GigaDevice. It provides comprehensive technical details, including pinouts, memory maps, clock trees, and functional descriptions for various peripheral interfaces like ADC, DAC, SPI, I2C, CAN, and USB. The document also outlines electrical characteristics, power consumption data, package options ranging from LQFP144 to QFN36, and operating temperature ranges. With 112 pages of information, it serves as a complete reference for engineers designing systems using these versatile MCUs.

02 — Key specifications

Datasheet parameters

ParameterMinTypMaxConditions
quiescent current — 45.6 mA — VDD = VDDA = 3.3 V, HXTAL = 8 MHz, System clock = 108 MHz, All peripheralsenabled
supply voltage range 2.6 V 3.3 V 3.6 V —
operating temperature -40 °C — 85 °C
clock frequency — 6.25 MHz — Master mode (data: 32 bits, Audio frequency = 96 kHz)
power dissipation — — 820 mW
input capacitance — 5 pF — —
psrr 55 dB 80 dB — —
cpu speed — 108 MHz —
program memory size — 768 kB —
ram size — 96 kB —
io count — 51 —
adc resolution — 12 bit —
core size — 32 bit —
rise time 4 ns — 20 ns CL = 50 pF
fall time 4 ns — 20 ns CL = 50 pF
data retention — 20 year — —
program erase cycles 100 kcycle — — TA = -40 °C ~ +85 °C
output voltage high — 2.32 V — VDD = 2.6V
output voltage low — 120 mV — VDD = 2.6V
load capacitance — — 50 pF No pin/pad capacitance included
settling time — 300 ns 1 µs CLOAD≤ 50 pF, RLOAD≥ 5 kΩ
03 — Alternatives

Closest matches to GD32F103

GD32F303CCT6 3.0× lower program memory size, 2.0× lower clock frequency, 2.0× lower ram size
GD32F303CCT5 3.0× lower program memory size, 2.0× lower clock frequency, 2.0× lower ram size
STM32F405OET6 10.0× lower program erase cycles, 10.0× higher settling time, 2.4× higher clock frequency
STM32F103C8T6 11.7× lower program memory size, 10.0× lower program erase cycles, 5.8× higher clock frequency
STM32F411CCU6 10.0× lower program erase cycles, 2.9× lower program memory size, 2.4× higher clock frequency
GD32E230C4T6 5.8× higher clock frequency, 5.4× lower quiescent current, 4.2× higher rise time
GD32E230K4T6 5.8× higher clock frequency, 5.4× lower quiescent current, 4.2× higher rise time
STM32F103B 10.0× lower program erase cycles, 5.9× lower program memory size, 5.8× higher clock frequency
04 — FAQ

Frequently asked questions

What is the ADC resolution of the GD32F103RFT6?

The ADC resolution is 12 bit.

What is the clock frequency in Master mode with 32-bit data and an audio frequency of 96 kHz?

The clock frequency is 6.25 MHz.

What is the core size of the GD32F103RFT6?

The core size is 32 bit.

What is the maximum CPU speed of the GD32F103RFT6?

The maximum CPU speed is 108 MHz.

What is the data retention period for the GD32F103RFT6?

The data retention period is 20 year.

What is the fall time when CL = 50 pF?

The fall time is 20 ns when CL = 50 pF.

What is the input capacitance?

The input capacitance is 5 pF.

What is the total number of I/O ports available on the GD32F103RFT6?

The GD32F103RFT6 has 51 I/O ports.

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