GR551x Overview
The Goodix GR551x family is a single-mode, low-power Bluetooth 5.1 System-on-Chip (SoC). 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 GR551x integrates Bluetooth 5.1 Protocol Stack, a 2.4 GHz RF transceiver, on-chip programmable Flash memory, RAM, and multiple peripherals.
GR551x SoCs are available in multiple packages (see Table 1) that meet your diverse project demands.
| Features | GR5515IGND | GR5515IENDU | GR5515I0NDA | GR5515RGBD | GR5515GGBD | GR5513BEND | GR5513BENDU |
|---|---|---|---|---|---|---|---|
| CPU | Cortex®-M4F | Cortex®-M4F | Cortex®-M4F | Cortex®-M4F | Cortex®-M4F | Cortex®-M4F | Cortex®-M4F |
| RAM | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 128 KB | 128 KB |
| Flash | 1 MB | 512 KB | N/A | 1 MB | 1 MB | 512 KB | 512 KB |
| Package (mm) |
QFN56 (7 x 7 x 0.75) |
QFN56 (7 x 7 x 0.75) |
QFN56 (7 x 7 x 0.75) |
BGA68 (5.3 x 5.3 x 0.88) |
BGA55 (3.5 x 3.5 x 0.60) |
QFN40 (5 x 5 x 0.75) |
QFN40 (5 x 5 x 0.75) |
| I/O Number | 39 | 39 | 39 | 39 | 29 | 22 | 22 |
- GR5515IENDU and GR5513BENDU are embedded with wide-voltage Flash, with Flash power supply from 1.65 V to 3.6 V.
- GR5515I0NDA supports external wide-voltage Flash (range: 1.65 V–3.6 V).
