embedded-processors-controllers

GD32F303

Full part number: GD32F303CCT5

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

01 — Overview

This 91-page datasheet covers the GD32F303xx family of ARM Cortex-M4 32-bit microcontrollers, listing over twenty specific part numbers across various pin counts. The document defines electrical characteristics, memory maps, and detailed functional descriptions for peripherals including ADCs, DACs, timers, CAN, USB, and external memory controllers. It outlines power consumption, boot modes, and package options to support embedded system design.

02 — Key specifications

Datasheet parameters

ParameterMinTypMaxConditions
quiescent current 190 µA 190 µA 1.1 mA VDD = VDDA = 3.3 V, LDO in run mode, IRC40K off, RTC off, All GPIOs analog mode
supply voltage range 2.6 V 3.3 V 3.6 V —
operating temperature -40 °C — 85 °C
clock frequency 3.08 MHz 3.08 MHz 3.08 MHz Master mode (data: 16 bits, Audio frequency = 96 kHz)
input capacitance — 5 pF — —
psrr 55 dB 80 dB — —
cpu speed — 120 MHz —
program memory size — 256 kB —
ram size — 49.2 kB —
io count — 112 —
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
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 GD32F303

GD32F303CCT6 similar adc resolution, similar clock frequency, similar core size
GD32F103RFT6 3.0× higher program memory size, 2.0× higher clock frequency, 2.0× higher ram size
STM32F405OET6 10.0× lower program erase cycles, 10.0× higher settling time, 4.9× higher clock frequency
STM32F103C8T6 11.7× higher clock frequency, 10.0× lower program erase cycles, 8.1× lower quiescent current
STM32F103B 11.7× higher clock frequency, 10.0× lower program erase cycles, 2.4× lower ram size
STM32F411CCU6 10.0× lower program erase cycles, 4.9× higher clock frequency, 2.7× higher ram size
CH32V203C6T6 7.8× lower program memory size, 4.8× lower ram size, 2.6× higher clock frequency
TMS320F28030 19.5× higher clock frequency, 15.6× lower program memory size, 8.0× lower ram size
04 — FAQ

Frequently asked questions

What is the ADC resolution of the GD32F303CCT5?

The ADC resolution is 12 bit.

What is the clock frequency in Master mode with 16-bit data and an audio frequency of 96 kHz?

The clock frequency is 3.08 MHz.

What is the core size of the GD32F303CCT5?

The core size is 32 bit.

What is the CPU speed of the GD32F303CCT5?

The CPU speed is 120 MHz.

What is the data retention period for the GD32F303CCT5?

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 I/O count for the GD32F303CCT5?

The I/O count is 112.

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