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Documentation > GR533x Developer Guide/ Introduction Copy URL


The Goodix GR533x series is a System-on-Chip (SoC) that supports Bluetooth 5.3 and Bluetooth Mesh, making it an ideal choice for applications including Internet of Things (IoT).

Based on 64 MHz ARM® Cortex®-M4F CPU core, the GR533x series integrates a 2.4 GHz RF transceiver, Bluetooth LE 5.3 Protocol Stack, on-chip 512 KB Flash, 96 KB system SRAM, and multiple peripherals. It also features excellent RF performance, with up to +15 dBm TX power, -99 dBm RX sensitivity, and up to 114 dB link budget in Bluetooth LE 1 Mbps mode.

The GR533x series supports connection between multiple centrals and multiple peripherals. It can be configured as a Broadcaster, an Observer, a Peripheral, or a Central, and supports the combination of all the above roles.

GR533x series comes in two package choices: QFN32 and QFN48 packages. The specific configurations are listed below.

Table 1 Configuration of GR533x series
GR533x Series GR5331AENI GR5331CENI GR5332AENE GR5332CENE
CPU Cortex®-M4F Cortex®-M4F Cortex®-M4F Cortex®-M4F
RAM 96 KB 96 KB 96 KB 96 KB
SiP Flash 512 KB 512 KB 512 KB 512 KB
I/O Number 16 32 16 32
Operating Temperature -40°C to 85°C -40°C to 85°C -40°C to 105°C -40°C to 105°C
Package (mm) QFN32 (4 x 4 x 0.75) QFN48 (6 x 6 x 0.75) QFN32 (4 x 4 x 0.75) QFN48 (6 x 6 x 0.75)

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