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Documentation > GR5525 Developer Guide/ Introduction Copy URL


The Goodix GR5525 series is a single-mode low-power System-on-Chip (SoC) that supports Bluetooth 5.3. It can be configured as a Broadcaster, an Observer, a Central, or a Peripheral, and supports the combination of all the above roles, making it an ideal choice for Internet of Things (IoT) and smart wearable devices.

Based on Arm® Cortex®-M4F CPU core, the GR5525 series integrates Bluetooth 5.3 Protocol Stack, a 2.4 GHz RF transceiver, on-chip programmable Flash memory, RAM, and multiple peripherals.

The GR5525 series comes in two package choices: QFN56 and QFN68 packages. The specific configurations are listed below.

Table 1 Configuration of GR5525 series
GR5525 Series GR5525RGNI GR5525IGNI GR5525IENI GR5525I0NI
CPU Cortex®-M4F Cortex®-M4F Cortex®-M4F Cortex®-M4F
RAM 256 KB 256 KB 256 KB 256 KB
SiP Flash 1 MB 1 MB 512 KB N/A
I/O Number 50 39 39 39
I/O Voltage 1.8 V–3.6 V 1.8 V–3.6 V 1.8 V–3.6 V In line with Flash voltage
Package (mm) QFN68 (7.0 x 7.0 x 0.85) QFN56 (7.0 x 7.0 x 0.75) QFN56 (7.0 x 7.0 x 0.75) QFN56 (7.0 x 7.0 x 0.75)

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