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nRF52805-CAAA-R

Bluetooth 5.0 Low Energy System-on-Chip (SoC)

The nRF52805-CAAA-R is a bluetooth 5.0 low energy system-on-chip (soc) from Nordic Semiconductor ASA. View the full nRF52805-CAAA-R datasheet below including key specifications, pinout, electrical characteristics, absolute maximum ratings.

Manufacturer

Nordic Semiconductor ASA

Category

Bluetooth 5.0 Low Energy System-on-Chip (SoC)

Package

WLCSP 2.482 x 2.464 mm

Lifecycle

Active

Key Specifications

ParameterValue
Current - Receiving4.6mA
Current - Receiving4.6mA
Current - Receiving4.6mA
Current - Transmitting4.6mA
Current - Transmitting4.6mA
Current - Transmitting4.6mA
Data Rate (Max)2Mbps
Data Rate (Max)2Mbps
Data Rate (Max)2Mbps
DigiKey ProgrammableNot Verified
DigiKey ProgrammableNot Verified
DigiKey ProgrammableNot Verified
Frequency2.4GHz
GPIO10
GPIO10
GPIO10
Memory Size192kB Flash, 24kB RAM
Mounting TypeSurface Mount
Operating Temperature-40°C ~ 85°C
Package / Case28-UFBGA, WLCSP
Power - Output4dBm
Power - Output4dBm
Power - Output4dBm
ProtocolBluetooth v5.2
RF Family/StandardBluetooth
RF Family/StandardBluetooth
RF Family/StandardBluetooth
Sensitivity-97dBm
Sensitivity-97dBm
Sensitivity-97dBm
Serial InterfacesADC, GPIO, I2C, SPI, UART
Serial InterfacesADC, GPIO, I2C, SPI, UART
Serial InterfacesADC, GPIO, I2C, SPI, UART
Supplier Device Package28-WLCSP (2.48x2.46)
Supplier Device Package28-WLCSP (2.48x2.46)
Supplier Device Package28-WLCSP (2.48x2.46)
TypeTxRx + MCU
TypeTxRx + MCU
TypeTxRx + MCU
Supply Voltage1.7V ~ 3.6V

Overview

Part: nRF52805 — Nordic Semiconductor Type: Bluetooth 5.0 Low Energy System-on-Chip (SoC) Description: A Bluetooth 5.0 Low Energy SoC featuring an Arm Cortex-M4 32-bit processor at 64 MHz, 192 kB flash, 24 kB RAM, and a 2.4 GHz transceiver with -97 dBm sensitivity and configurable TX power.

Operating Conditions:

  • Supply voltage: 1.7 V to 3.6 V
  • Operating temperature: -40 to +105 °C (suffix-dependent — see Table 10.4 for grade-specific ranges)
  • Max CPU frequency: 64 MHz

Absolute Maximum Ratings:

  • Max supply voltage: 3.9 V
  • Max junction/storage temperature: 150 °C

Key Specs:

  • CPU: Arm Cortex-M4 32-bit processor, 64 MHz
  • Flash memory: 192 kB
  • RAM: 24 kB
  • Bluetooth Low Energy sensitivity (1 Mbps): -97 dBm
  • TX power: -20 to +4 dBm (configurable in 4 dB steps)
  • RX peak current: 4.6 mA
  • TX peak current (0 dBm): 4.6 mA
  • System OFF mode current (no RAM retention): 0.3 μA at 3 V
  • ADC: 12-bit, 200 ksps, 2 configurable channels

Features:

  • Bluetooth 5.0, 2.4 GHz transceiver
  • On-air compatible with nRF52, nRF51, nRF24L, and nRF24AP Series
  • Single-ended antenna output (on-chip balun)
  • Flexible power management with on-chip DC/DC and LDO regulators
  • Programmable peripheral interconnect (PPI)
  • 10 general purpose I/O pins
  • EasyDMA automated data transfer
  • Nordic SoftDevice ready with concurrent multiprotocol support
  • Temperature sensor
  • 3x 32-bit timer with Counter mode
  • SPI master/slave with EasyDMA
  • I2C compatible two-wire master/slave
  • UART (CTS/RTS) with EasyDMA
  • Quadrature decoder (QDEC)
  • AES HW encryption with EasyDMA
  • 2x real-time counter (RTC)
  • Single crystal operation

Applications:

  • Proprietary protocol devices
  • Network processor
  • Beacons
  • Smart Home sensors
  • Presenters/Stylus
  • Health monitoring
  • Drug delivery
  • Asset tags
  • Toys
  • Retail tags and labels

Package:

  • WLCSP package, 2.482 x 2.464 mm

Features

  • Bluetooth ® 5.0, 2.4 GHz transceiver
  • -97 dBm sensitivity in 1 Mbps Bluetooth ® Low Energy mode
  • -20 to +4 dBm TX power, configurable in 4 dB steps
  • On-air compatible with nRF52, nRF51, nRF24L, and nRF24AP Series
  • Supported data rates:
  • Bluetooth ® 5.0 - 2 Mbps, 1 Mbps
  • Proprietary 2.4 GHz - 2 Mbps, 1 Mbps
  • Single-ended antenna output (on-chip balun)
  • 4.6 mA peak current in TX (0 dBm)
  • 4.6 mA peak current in RX
  • RSSI (1 dB resolution)
  • Arm ® Cortex ® -M4 32-bit processor, 64 MHz
  • 144 EEMBC CoreMark ® score running from flash memory
  • 34.4 μA/MHz running CoreMark from flash memory
  • 32.8 μA/MHz running CoreMark from RAM
  • Serial wire debug (SWD)
  • Flexible power management
  • 1.7 V to 3.6 V supply voltage range
  • On-chip DC/DC and LDO regulators with automated low current modes
  • Fast wake-up using 64 MHz internal oscillator
  • 0.3 μA at 3 V in System OFF mode, no RAM retention
  • 0.5 μA at 3 V in System OFF mode with full 24 kB RAM retention
  • 1.1 μA at 3 V in System ON mode, with full 24 kB RAM retention, wake on RTC (running from LFXO clock)
  • 1.0 μA at 3 V in System ON mode, no RAM retention, wake on RTC (running from LFXO clock)

Applications

  • Proprietary protocol devices
  • Network processor
  • Beacons
  • Smart Home sensors
  • Presenters/Stylus
  • 192 kB flash and 24 kB RAM
  • Advanced on-chip interfaces
  • Programmable peripheral interconnect (PPI)
  • 10 general purpose I/O pins
  • EasyDMA automated data transfer between memory and peripherals
  • Nordic SoftDevice ready with support for concurrent multiprotocol
  • Temperature sensor
  • 12-bit, 200 ksps ADC - 2 configurable channels with programmable gain
  • 3x 32-bit timer with Counter mode
  • SPI master/slave with EasyDMA
  • I 2 C compatible two-wire master/slave
  • UART (CTS/RTS) with EasyDMA
  • Quadrature decoder (QDEC)
  • AES HW encryption with EasyDMA
  • 2x real-time counter (RTC)
  • Single crystal operation
  • Package variants
  • WLCSP package, 2.482 x 2.464 mm
  • Health monitoring
  • Drug delivery
  • Asset tags
  • Toys
  • Retail tags and labels

Pin Configuration

I appreciate your detailed request, but I need to clarify an important limitation:

The attached image shows GPIO port architecture and pin configuration details, but it does NOT contain a physical pin diagram with numbered pins for the nRF52805-CAAA-R package.

The image illustrates the internal GPIO logic (DETECT signals, LATCH register, sense mechanism) and shows generic PIN0 and PIN31 examples, but does not show:

  • Physical package pin numbers (1, 2, 3, etc.)
  • The mapping of GPIO pins to physical package pins
  • A pin-out diagram specific to the WLCSP 2.482 × 2.464 mm package

The datasheet section provided (6.7.1 Pin configuration) describes GPIO functionality, not the physical pinout.

To extract the pinout for nRF52805-CAAA-R, I would need:

  1. A pin assignment table or pin configuration table from the datasheet (typically in a section titled "Pin Assignments," "Pinout," or "Pin Configuration")
  2. A physical package diagram showing numbered pins (1, 2, 3, …) with their corresponding signal names

Please provide:

  • The pin assignment table from the datasheet (usually found in the electrical specifications or package information section)
  • A package diagram image showing physical pin numbers for the WLCSP package

Once you supply these, I can extract the clean pinout table as requested.

Electrical Characteristics

SymbolDescriptionMin.Typ.Max.Units
f SPIBit rates for SPI 218 22Mbps
t SPI,STARTTime from writing TXD register to transmission started1μs

Absolute Maximum Ratings

Maximum ratings are the extreme limits to which the chip can be exposed for a limited amount of time without permanently damaging it. Exposure to absolute maximum ratings for prolonged periods of time may affect the reliability of the device. 35

NoteMin.Max.Unit
Supply voltages
VDD-0.3+3.9V
VSS0V
I/O pin voltage
V I/O , VDD ≤3.6 V-0.3VDD + 0.3V
V I/O , VDD >3.6 V-0.33.9V
Environmental WLCSP package
Storage temperature-40+125°C
MSLMoisture Sensitivity Level1
ESD HBMHuman Body Model3kV
ESD HBM ClassHuman Body Model Class2
ESD CDMCharged Device Model1kV
Flash memory
Endurance10 000write/erase cycles
Retention at 85 °C10years

Table 111: Absolute maximum ratings

Recommended Operating Conditions

The operating conditions are the physical parameters that the chip can operate within.

Table 110: Recommended operating conditions

SymbolParameterNotesMin.Nom.Max.Units
VDDSupply voltage, independent of DCDC enable1.733.6V
t R_VDDSupply rise time (0 V to 1.7 V)60ms
TAOperating temperature-402585°C

Important: The on-chip power-on reset circuitry may not function properly for rise times longer than the specified maximum.

Ordering Information

MPNPackageTemperature RangePacking

Related Variants

The following components are covered by the same datasheet.

Part NumberManufacturerPackage
NRF52805Nordic Semiconductor
NRF52805-CAAANordic Semiconductor
NRF52805-CAAA-B-RNordic Semiconductor ASA28-UFBGA, WLCSP
NRF52805-CAAA-B-R7Nordic Semiconductor ASA28-UFBGA, WLCSP
NRF52805-CAAA-R7Nordic Semiconductor ASA28-UFBGA, WLCSP
NRF528XXNordic Semiconductor
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