Introduction
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.
| GR5525 Series | GR5525RGNI | GR5525IENI | GR5525I0NI |
|---|---|---|---|
| CPU | Cortex®-M4F | Cortex®-M4F | Cortex®-M4F |
| RAM | 256 KB | 256 KB | 256 KB |
| SiP Flash | 1 MB | 512 KB | N/A |
| I/O Number | 50 | 39 | 39 |
| I/O Voltage | 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) |
