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GR5525 Series
GR5525

The Goodix GR5525 family is a single-mode, low-power Bluetooth 5.3 System-on-Chip (SoC) designed to deliver outstanding performance. Built upon various technology advantages and new features, it can be flexibly configured as a Broadcaster, an Observer, a Peripheral, or a Central. Moreover, it supports the flexible 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. It provides up to four I2C/UART interfaces, expands the I/O functionality, and enhances the QSPI interface, covering a wider range of IoT and wearable applications.

GR5525

Key Features

  • Bluetooth Low Energy 5.3 transceiver integrating Controller and Host layers

    • Supported data rates: 1 Mbps, 2 Mbps, Long Range (500 kbps, 125 kbps)

    • TX power: -20 dBm to +7 dBm

    • -97 dBm sensitivity (in 1 Mbps mode)

    • -93 dBm sensitivity (in 2 Mbps mode)

    • -101 dBm sensitivity (in Long Range 500 kbps mode)

    • -103 dBm sensitivity (in Long Range 125 kbps mode)

    • TX current: 6.3 mA @ 0 dBm, 1 Mbps, 64 MHz

    • RX current: 5.3 mA @ 1 Mbps, 64 MHz

  • ARM®Cortex®-M4F 32-bit micro-processor with floating point support

    • Up to 96 MHz clock frequency

    • Built-in Memory Protection Unit (MPU) supporting eight programmable regions

    • Hardware Floating Point Unit (FPU)

    • Built-in Nested Vectored Interrupt Controller (NVIC)

    • Non-maskable Interrupt (NMI) input

    • Serial Wire Debug (SWD) with 16 breakpoints, two watchpoints, and a debug timestamp counter

    • 56 µA/MHz CoreMark running from Flash @ 3.3 V, 64 MHz

  • On-chip memory

    • 256 KB RAM data memory with retention capabilities

    • 8 KB cache RAM instruction memory with retention capabilities

    • Stack ROM (including boot ROM and Bluetooth LE Stack)

    • 1 MB internal QSPI Flash (512 KB for GR5525IENI, and external Flash for GR5525I0NI)

  • Digital peripherals

    • Two general-purpose DMA engines, each with six channels and up to 16 programmable request/trigger sources

  • Analog peripherals

    • One 13-bit Sense ADC with a sampling rate of 1 Msps. It supports up to eight external I/O channels and three internal signal channels

    • Built-in die temperature and voltage sensors

    • Low-power comparator, supporting wakeup from sleep mode

  • Flexible serial peripherals

    • Four UART modules up to 2 Mbps with all modules supporting flow control and IrDA

    • Four I2C modules for peripheral communication, up to 3.4 MHz

    • One 8-bit/16-bit/32-bit SPI master interface and one SPI slave interface for host communication

    • Two I2S interfaces (one I2S master interface and one I2S slave interface)

    • PDM interface with hardware sampling rate converter

    • One Dual-lane SPI (DSPI) interface for display, with MIPI DBI Type-C support

    • Three Quad SPI (QSPI) interfaces, up to 48 MHz; supporting direct access via memory mapping when connecting with external NOR Flash

  • Security

    • Complete secure computing engine:

      • AES 128-bit/192-bit/256-bit symmetric encryption (ECB, CBC)

      • Hash-based Message Authentication Code (HMAC-SHA256)

      • PKC

      • TRNG

    • Comprehensive security operation mechanism:

      • Secure boot

      • Encrypted firmware runs directly from Flash

      • eFuse for encrypted key storage

      • Differentiate application data key and firmware key, supporting one data per device/product

  • I/O peripherals

    • Up to 50 multiplexed I/O pins in total

      • Up to 34 general-purpose I/O (GPIO) pins

      • Up to eight always-on I/O (AON IO) pins, supporting wakeup from sleep mode

      • Up to eight mixed signal I/O (MSIO) pins, configurable to be digital/analog signal interfaces

  • Timer

    • Two general-purpose, 32-bit timer modules

    • A dual timer module composed of two programmable 32-bit or 16-bit down counters

    • An internal sleep timer that can be used to wake the device up from sleep mode

    • Two PWM modules with edge alignment mode and center alignment mode, each with three channels

    • Two real-time counters (RTC): one RTC and one Calendar

  • Power management

    • On-chip DC-DC to provide RF analog voltage and supply core LDO

    • On-chip I/O LDO to provide I/O voltage and supply external components; maximum I/O LDO drive strength: 30 mA

    • Programmable thresholds for brownout detection (BOD)

    • Supply voltage: 2.4 V – 3.8 V

    • I/O voltage: 1.8 V – 3.6 V

  • Low-power consumption

    • Sleep mode: 7.3 µA (Typical) at 3.3 V VBAT input with SRAM retention on and LFXO_32K running; woken up by eight sources of always-on domain

    • Ultra deep sleep mode: 5.0 µA (Typical); internal power (all SRAM included) and LFXO_32K removed from entire chip except always-on domain; woken up by Sleep Timer and AON GPIOs

    • OFF mode: 200 nA (Typical); nothing on except VBAT, and chip in reset mode

  • Packages

    • QFN68: 7.0 mm * 7.0 mm * 0.85 mm, 0.35 mm pitch

    • QFN56: 7.0 mm * 7.0 mm * 0.75 mm, 0.4 mm pitch

  • Operating temperature range: -40 °C to +85 °C

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Product Details

Download Comparison Table

 

GR5525RGNI

GR5525IGNI

GR5525IENI

GR5525I0NI

Status

Active

Active

Active

Active

Protocol

Bluetooth LE [1]

5.3

5.3

5.3

5.3

Bluetooth Mesh

Core System

CPU

Cortex®-M4F

Cortex®-M4F

Cortex®-M4F

Cortex®-M4F

Clocks

96 MHz / 32kHz

96 MHz / 32kHz

96 MHz / 32kHz

96 MHz / 32kHz

Cache

8 KB

8 KB

8 KB

8 KB

RAM

256 KB

256 KB

256 KB

256 KB

OTP

 

 

 

 

Flash

1 MB

1 MB

512 KB

External Flash

Security

Root of Trust

Secure Key Store

4

4

4

4

PKC

RSA

AES

ECC

TRNG

Radio

Frequency

2.4 GHz

2.4 GHz

2.4 GHz

2.4 GHz

Maximum TX Power

7 dBm

7 dBm

7 dBm

7 dBm

RX Sensitivity

-97 dBm (@1Mbps)

-97 dBm (@1Mbps)

-97 dBm (@1Mbps)

-97 dBm (@1Mbps)

Peripheral

UART

4

4

4

4

SPI

1 * SPIM / 1 * SPIS

1 * SPIM / 1 * SPIS

1 * SPIM / 1 * SPIS

1 * SPIM / 1 * SPIS

I2C

4

4

4

4

QSPI

3

3

3

3

DSPI

1

1

1

1

Timers

4

4

4

4

PWM

2

2

2

2

RTC

2

2

2

2

I2S

1 * I2SM / 1 * I2SS

1 * I2SM / 1 * I2SS

1 * I2SM / 1 * I2SS

1 * I2SM / 1 * I2SS

PDM

ADC

13-bit

13-bit

13-bit

13-bit

Comparator

Temperature Sensor

GPIO

50

39

39

39

Packages

Type

QFN68

QFN56

QFN56

QFN56

Dimensions

7.0 * 7.0 mm

7.0 * 7.0 mm

7.0 * 7.0 mm

7.0 * 7.0 mm

Certification

SIG BQB (QDID: 179976)

Operating Temperature

-40℃ - 85℃

-40℃ - 85℃

-40℃ - 85℃

-40℃ - 85℃

Supply Voltage Range

2.4 V - 3.8 V

2.4 V - 3.8 V

2.4 V - 3.8 V

2.4 V - 3.8 V

Development Kits

GR5525 Starter Kit

GR5525 Starter Kit

GR5525 Starter Kit

GR5525 Starter Kit

Notes:
[1] 1M-PHY, 2M-PHY, Long Range supported by default.

Hardware Resources

GR5525 Starter Kit

GR5525 Starter Kit (GR5525 SK) is a Goodix proprietary platform that helps users quickly get started with project evaluation, development, debugging, and performance verification for GR5525 series SoCs.

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PLT Lite

PLT Lite is for programming Goodix Bluetooth LE SoCs in mass production.

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Software & Tools

GR5525 SDK

Software development kit (SDK) for GR5525 series
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GProgrammer for BLE

A firmware programming tool for Goodix Bluetooth LE SoCs
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GRPLT Lite Config Tool

A configuration tool for PLT Lite
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GRToolbox

A mobile APP customized for Goodix Bluetooth Low Energy products
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GRUart

A PC tool for debugging serial ports
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GRDirect Test Mode Tool

A serial port tool for DTM tests on PC
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Design Files

GR5525 Reference Design
V1.1
GR5525_Reference_Design_Rev.1.1.zip
Update time: 2023-10-07
Version description
  • Including the reference schematic designs for the minimal system operation, recommended BOM, and Pin Mux tables of GR5525 SoCs

Documentation

Name Rights Description Version Date
GR5525 Product Brief For Public Rev.1.0 2023-11-02
GR5525 Datasheet For Public Rev.1.0 2023-11-02
GR5525 Starter Kit User Guide For Public Rev.1.1 2024-04-09
GR5525 Developer Guide For Public Rev.1.1 2024-04-09
GProgrammer User Manual For Public Rev.3.1 2023-11-28
GRPLT Lite Config Tool User Manual For Public Rev.1.6 2023-11-02
GR5525 Hardware Design Guidelines For Public Rev.1.1 2024-04-09
GR5525 Reference Design Register Users Only Rev.1.1 2023-11-02
GR5525-SK-BASIC-RevB For Public Rev.1.0 2023-11-02
GR5525 API Reference For Public Rev.1.0.0 2023-11-02
GR5xx Sample Service Application and Customization For Public Rev.3.1 2023-11-28
GR5xx HID Mouse Example Application For Public Rev.3.2 2023-11-28
GR5xx Serial Port Profile Example Application For Public Rev.3.1 2023-11-28
GR5xx Power Consumption Profile Example Application For Public Rev.3.1 2023-11-28
GR5xx HRS RSCS Relay Example Application For Public Rev.3.1 2023-11-28
GR5xx FreeRTOS Example Application For Public Rev.3.1 2023-11-28
GR5xx Throughput Example Application For Public Rev.3.1 2023-11-28
GR5xx AT Command Example Application For Public Rev.3.1 2023-11-28
GR5xx ANCS Profile Example Application For Public Rev.3.1 2023-11-28
GR5xx AMS Profile Example Application For Public Rev.3.1 2023-11-28
GR5xx APP Log Application Note For Public Rev.3.2 2023-11-28
GR5xx DFU Development Application Note For Public Rev.1.4 2023-11-28
GR5xx Fault Trace Module Application Note For Public Rev.3.2 2023-11-28
GR5xx DTM Test Application Note For Public Rev.3.3 2023-11-28
GR5xx Firmware Encryption Application Note For Public Rev.3.0 2023-11-02
GRPLT Lite Config Tool Customized Firmware Encryption Application Note For Public Rev.1.5 2023-11-02
GR5525 Reliability Test Report For Public Rev.1.0 2024-01-25
GR5525 MCD For Public Rev.1.0 2023-11-02
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Getting Start With Starter Kit

GR5525 Starter Kit

A development kit based on GR5525 SoC which is designed for quick learning about GR5525 development environment.

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