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NRF51822-CEAA-R7

Name: NRF51822-CEAA-R7
Rating: 4.7 (12 reviews)

IC RF TXRX BLE 62WLCSP

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規格

Part Status	Obsolete
Base Product Number	NRF51822
Packaging	Tape & Reel (TR)
DigiKey Programmable	Not Verified
Type	TxRx Only
RF Family/Standard	Bluetooth, General ISM > 1GHz
Protocol	Bluetooth v4.1
Modulation	GFSK
Frequency	2.4GHz
Data Rate (Max)	2Mbps
Power - Output	4dBm
Sensitivity	-96dBm
Memory Size	128kB Flash, 8kB SRAM
Serial Interfaces	I2C, SPI, UART
GPIO	31
Voltage - Supply	1.8V ~ 3.6V
Current - Receiving	8.7mA ~ 13.4mA
Current - Transmitting	4.7mA ~ 16mA
Operating Temperature	-25°C ~ 75°C
Mounting Type	Surface Mount
Package	62-UFBGA, WLCSP
Supplier Device Package	62-WLCSP (3.5x3.83)

概述

Description

The NRF51822-CEAA-R7 is Nordic Semiconductor’s Bluetooth Low Energy (BLE) System-on-Chip (SoC) in the nRF51822 family. It combines an ARM Cortex‑M0 microcontroller with a 2.4 GHz BLE radio on a single chip, designed for ultra‑low‑power wireless devices such as wearables, beacons, and IoT sensors.
Variant notes: CEAA‑R7 identifies a specific package/assembly code and silicon revision for this part; exact I/O, memory, and peripherals follow the nRF51822 spec and may vary by production lot. Check the datasheet for your lot.
Key features: BLE radio with Nordic SoftDevice BLE stacks (e.g., S110/S120) to enable peripheral and/or central roles; on‑chip flash and RAM; multiple peripherals such as GPIOs, timers, UART, SPI, I2C, and PWM; cryptography engine for security.
Development: supported by Nordic’s SDK, SoftDevices, and various development kits for building BLE peripherals, beacons, and connected sensors. For precise specifications of your CEAA‑R7 lot, refer to the official Nordic datasheet/product page.

Features

Key features of NRF51822-CEAA-R7 (nRF51822 SoC):
- Bluetooth Low Energy (BLE) 4.0 compatible radio over 2.4 GHz
- 32-bit ARM Cortex-M0 MCU running up to 16 MHz
- Memory: up to 256 KB flash and 32 KB RAM
- Peripherals: UART, SPI, I2C (TWIM), PWM, timers and RTC
- GPIO tasks/events with PPI and GPIOTE for low-power interconnect
- AES-128 encryption engine for security
- 1.7–3.6 V operating voltage
- Debug support via SWD/JTAG (in-system programming)
- Package: compact QFN-style package (typical for nRF51822 devices)
Note: This variant (CEAA-R7) reflects silicon revision 7; for exact pinout, package, and storage details, refer to the official datasheet.

Package

QFN32 (32-pin QFN) package.

Pinout

Pin count: 40 pins (QFN40) in the NRF51822-CEAA-R7 package.
Function: It is the nRF51822 BLE SoC (Cortex-M0) with an integrated 2.4 GHz transceiver. The 40 pins provide power/ground and up to ~32 GPIOs, plus standard interfaces such as SPIM (SPI), TWIM (I2C), UART, PWM/timers, GPIOTE, RNG, AES, ADC, etc., for Bluetooth Low Energy operation and peripheral access.

Manufacturer

Manufacturer: Nordic Semiconductor ASA. It is a Norwegian fabless semiconductor company that designs wireless communication ICs, notably Bluetooth Low Energy and other 2.4 GHz protocols, for IoT and consumer devices.

Application

NRF51822-CEAA-R7 is a low-power BLE/2.4 GHz SoC, ideal for wireless peripherals and sensors. Common applications include:
- Wearables (fitness trackers, smartwatches)
- Beacons and proximity sensors
- Health/medical wireless devices
- Smart home and building automation sensors
- Wireless audio accessories and remote controls
- Sports/fitness sensors and meters
- Industrial sensor networks
- Asset tracking and inventory tags