nRF52820

Nordic
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Overview

The nRF52 Series of System-on-Chip (SoC) devices embed a powerful yet low-power Arm® Cortex®-M4 processor with our industry leading 2.4 GHz RF transceivers. In combination with the very flexible orthogonal power management system, and a programmable peripheral interconnect (PPI) event system.It offers pin-compatible device options for Bluetooth® Low Energy, proprietary 2.4 GHz, and ANT™ solutions.

Features

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Features

stereo

Block Diagram

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Application Note

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Development Board

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Core Type

ARM Cortex®-M4

CPU Clock Speed

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CPU Architecture

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CPU Features

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Bluetooth Version

5.1

Operating Frequency [Max] (MHz)

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Flash (kB)

256 kB

Cache

yes

SRAM (kB)

32 kB RAM

EEPROM (kB)

__

Debugging

__

Upgrade Type

Supports Over-the-Air upgrade (OTA)

Crystal

32 MHz

on chip (PLL)

64 MHz

crystal (optional)

32.768 kHz

on-chip RC

32.768 kHz

External clock

32.768 kHz

Timers [Number, bits]

4 × 32-bit 16 MHz

Real-Time Clock

2 × 32.768 kHz

Watchdog timer

32.768 kHz

GPIO

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Pins

18

Pitch

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Channels

8 × GPIOTEs

ADC [Number, bits]

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True Random Number Generator

Analog comp

64-level

low-power comp

15-level

Temperature sensor

NFC Tag

-

SPI

2 × SPI master and slave

DAC [Number, bits]

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UART

1 × UARTE

SSI

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PWM [Number, bits]

-

I2C

-

TWI

2 × TWI master and slave

QDEC

PDM

-

USB

1 × USB Full-speed device

SPI

1 × high-speed SPI master

Quad SPI

-

I2S

支持

Debug interface

SWI调试界面

Human Machine Interface

-

Programmable channels

20

Fixed channels

12

Channel groups

6

Supply Voltage [Min to Max] (V)

1.7 V to 5.5 V supply voltage 1.7 V to 3.6 V (VDD) 2.5 V to 5.5 V (VDDH)

2 stage regulator LDO for high voltage and DC/DC or LDO for low voltage

On-chip VBUS

On-chip VBUS 3.3 V reg

Regulated supply for external components

-

Power fail

Power fail comparator and brownout

Crypto Accelerator

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Public Key Hardware Accelerator

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Accelerator

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Security

AES engine

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Current

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Sensor Controller

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Standby

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Transceiver Compatible

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Receiver Sensitivity

-95 dBm (Bluetooth Low Energy 1 Mbps)

Output Power

+8 dBm

Frequency Regulation

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Protocols

Bluetooth Low Energy/Bluetooth mesh/Thread/ Zigbee/ANT/2.4 GHz/IEEE 802.15.4

Bluetooth 5 PHYs

2 Mbps/Long range

bluetooth 5.1 support

Yes

Dimension

5 × 5 QFN40 w/18 GPIOs and USB

Package Type

BGA

DSP RAM

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DSP Clock Speed

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DSP Clock Speed

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Voice Services

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General

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  • Datasheet: