The Goodix GR533x series is a comprehensive-performance Bluetooth LE 5.3 SoC designed for various applications such as smart home, health care, smart trackers, and IoT modules, supporting Bluetooth Mesh networking protocols. Based on Arm ® Cortex ® -M4F CPU core running at 64 MHz, the GR533x integrates a 2.4 GHz RF transceiver, Bluetooth LE 5.3 protocol stack, 512 KB on-chip Flash memory, 96 KB system SRAM, and a rich set of peripherals. It provides outstanding RF performance, featuring a maximum TX power of +15 dBm, an RX sensitivity of -99 dBm in Bluetooth LE 1 Mbps mode, achieving a total link budget of up to 114 dB. With two main power supply schemes (DC-DC and SYS_LDO), the GR533x offers flexible options to achieve a balance between low power consumption and economical BOM.
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Key specs
| Power | |
|---|---|
| Maximum TX Power | 6 dBm |
| Supply Voltage Range | 2.0 V - 3.63 V |
| AC and DC characteristics | |
| Radio Frequency | 2.4 GHz |
| Environment and package | |
| Dimensions | 4.0 mm * 4.0 mm |
| Operating Temperature | -40℃ - 85℃ |
| Packages Type | QFN32 |
| Temperature Sensor | ● |
| Other | |
| ADC | 13-bit |
| Bluetooth Mesh | ● |
| Cache | 8 KB |
| Certification | SIG BQB (QDID: 179976) |
| Clocks | 64 MHz / 32 kHz |
| Comparator | ● |
| Core System CPU | Cortex®-M4F |
| Development Kits | GR5331 Starter Kit |
| Flash | 512 KB |
| GPIO | 16 |
| I2C | 2 |
| OTP | ● |
| Peripheral UART | 2 |
| Protocol Bluetooth LE[1] | 5.3 |
| PWM | 2 |
| RAM | 64 KB |
| RTC | 1 |
| RX Sensitivity | -97.5 dBm (@ 1 Mbps) |
| Security AES-128 | ● |
| SPI | 1 * SPIM / 1 * SPIS |
| Timers | 4 |
| TRNG | ● |