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
| Parameter | Value |
|---|---|
| Current - Receiving | 4.6mA |
| Current - Receiving | 4.6mA |
| Current - Receiving | 4.6mA |
| Current - Transmitting | 4.6mA |
| Current - Transmitting | 4.6mA |
| Current - Transmitting | 4.6mA |
| Data Rate (Max) | 2Mbps |
| Data Rate (Max) | 2Mbps |
| Data Rate (Max) | 2Mbps |
| DigiKey Programmable | Not Verified |
| DigiKey Programmable | Not Verified |
| DigiKey Programmable | Not Verified |
| Frequency | 2.4GHz |
| GPIO | 10 |
| GPIO | 10 |
| GPIO | 10 |
| Memory Size | 192kB Flash, 24kB RAM |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 28-UFBGA, WLCSP |
| Power - Output | 4dBm |
| Power - Output | 4dBm |
| Power - Output | 4dBm |
| Protocol | Bluetooth v5.2 |
| RF Family/Standard | Bluetooth |
| RF Family/Standard | Bluetooth |
| RF Family/Standard | Bluetooth |
| Sensitivity | -97dBm |
| Sensitivity | -97dBm |
| Sensitivity | -97dBm |
| Serial Interfaces | ADC, GPIO, I2C, SPI, UART |
| Serial Interfaces | ADC, GPIO, I2C, SPI, UART |
| Serial Interfaces | ADC, GPIO, I2C, SPI, UART |
| Supplier Device Package | 28-WLCSP (2.48x2.46) |
| Supplier Device Package | 28-WLCSP (2.48x2.46) |
| Supplier Device Package | 28-WLCSP (2.48x2.46) |
| Type | TxRx + MCU |
| Type | TxRx + MCU |
| Type | TxRx + MCU |
| Supply Voltage | 1.7V ~ 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:
- A pin assignment table or pin configuration table from the datasheet (typically in a section titled "Pin Assignments," "Pinout," or "Pin Configuration")
- 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
| Symbol | Description | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|
| f SPI | Bit rates for SPI 21 | 8 22 | Mbps | ||
| t SPI,START | Time from writing TXD register to transmission started | 1 | μs |
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
| Note | Min. | Max. | Unit | |
|---|---|---|---|---|
| Supply voltages | ||||
| VDD | -0.3 | +3.9 | V | |
| VSS | 0 | V | ||
| I/O pin voltage | ||||
| V I/O , VDD ≤3.6 V | -0.3 | VDD + 0.3 | V | |
| V I/O , VDD >3.6 V | -0.3 | 3.9 | V | |
| Environmental WLCSP package | ||||
| Storage temperature | -40 | +125 | °C | |
| MSL | Moisture Sensitivity Level | 1 | ||
| ESD HBM | Human Body Model | 3 | kV | |
| ESD HBM Class | Human Body Model Class | 2 | ||
| ESD CDM | Charged Device Model | 1 | kV | |
| Flash memory | ||||
| Endurance | 10 000 | write/erase cycles | ||
| Retention at 85 °C | 10 | years |
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
| Symbol | Parameter | Notes | Min. | Nom. | Max. | Units |
|---|---|---|---|---|---|---|
| VDD | Supply voltage, independent of DCDC enable | 1.7 | 3 | 3.6 | V | |
| t R_VDD | Supply rise time (0 V to 1.7 V) | 60 | ms | |||
| TA | Operating temperature | -40 | 25 | 85 | °C |
Important: The on-chip power-on reset circuitry may not function properly for rise times longer than the specified maximum.
Ordering Information
| MPN | Package | Temperature Range | Packing |
|---|
Related Variants
The following components are covered by the same datasheet.
| Part Number | Manufacturer | Package |
|---|---|---|
| NRF52805 | Nordic Semiconductor | — |
| NRF52805-CAAA | Nordic Semiconductor | — |
| NRF52805-CAAA-B-R | Nordic Semiconductor ASA | 28-UFBGA, WLCSP |
| NRF52805-CAAA-B-R7 | Nordic Semiconductor ASA | 28-UFBGA, WLCSP |
| NRF52805-CAAA-R7 | Nordic Semiconductor ASA | 28-UFBGA, WLCSP |
| NRF528XX | Nordic Semiconductor | — |
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