nRF24LE1
2.4GHz RF System-on-Chip with FlashActive
Description
The nRF24LE1 is a highly integrated ultra low power 2.4GHz RF System-on-Chip (SoC) for 2.4GHz ISM (Industrial, Scientific and Medical) band operation. It includes a 2.4GHz RF transceiver core, an 8-bit CPU, and embedded Flash memory. By offering a peak RX/TX current lower than 14mA, a sub-μA power down mode, advanced power management, and 1.9 to 3.6V supply range, the nRF24LE1 provides a true ultra low power solution that enables months to years of battery lifetime when running from regular coin cells or AA/AAA batteries. Finally, a rich set of on-chip analog and digital peripherals makes the nRF24LE1 a flexible, single chip solution for a wide range of applications including PC peripherals, game controllers, remote controls, sports/fitness/healthcare sensors, and toys.
The nRF24LE1 integrates an nRF24L01+ 2.4GHz RF transceiver core, enhanced 16MHz 8-bit 8051 compatible CPU, 1kB + 256B RAM, 16kB embedded Flash, and a wide range of system peripherals including a hardware AES accelerator, 16MHz and 32kHz RC oscillators, ultra low power 32kHz crystal oscillator, 12-bit ADC and SPI, 2-wire and UART serial interfaces.
The nRF24LE1 is available in 3 package options:
- 4 x 4mm 24-pin QFN with 7 generic I/O pins
- 5 x 5mm 32-pin QFN with 15 generic I/O pins
- 7 x 7mm 48-pin QFN with 31 generic I/O pins
Features
- Single chip solution - highly integrated 2.4GHz RF SoC with embedded Flash
- Ultra low power consumption – months to years of battery lifetime
- nRF24L01+ radio core, Enhanced 8051 CPU and 16kB Flash
- Rich set of on-chip analog and digital peripherals enabling a wide range of applications
- Drop-in compatible with nRF24LE1 OTP, a lower-cost OTP variant
- Fully on-air compatible with all Nordic nRF24L-series, nRF24E-series and nRF240-series solutions
Applications
- PC Peripherals
- Gaming
- Sports and Fitness
- Toys
- Consumer Electronics
Related Products
| Product | Brief description |
| nRF24LE1 OTP | Drop-in compatible low cost OTP variant |
| nRF24LU1+ | 2.4GHz RF System-on-Chip (SoC) with Flash and USB |
| nRF24LU1+ OTP | 2.4GHz RF System-on-Chip (SoC) with Flash and USB |
| nRF24LO1+ | Ultra low power 2.4GHz RF Transceiver IC |
Ordering codes
Tags
A highly integrated ultra low power 2.4GHz RF System-on-Chip (SoC) for 2.4GHz ISM band operation, including a 2.4GHz RF transceiver core, 8-bit CPU, and embedded Flash memory.
Ultra low power consumption
- 500nA deep sleep mode
- 1.0µA memory retention mode
- 1.6µA memory retention with 32kHz XO mode
- 2µA register retention mode
- 3.0µA register retention with 32kHz XO mode
- 3.8mA active mode with CPU at 8MHz
- 11.1mA Radio TX at 0dBm
- 13.3mA Radio RX at 2Mbps on-air data rate
2.4GHz Radio
- 2.4GHz ISM band operation
- GFSK modulation, 1 or 2MHz bandwidth
- 0, -6, -12, and -18dBm programmable TX output power
- Configurable on-air data rate of 250kbps, 1Mbps or 2Mbps
- -94dBm RX sensitivity a 250kbps
- -82dBm RX sensitivity at 2Mbps
- -85dBm RX sensitivity at 1Mbps
- Excellent co-existence performance
- Compatible with 16MHz ±60ppm crystal
Enhanced ShockBurst™ hardware protocol accelerator
-
Automatic packet assembly
(Preamble, Address, CRC) - Automatic packed detection and validation
- Dynamic payload length, 1 to 32Bytes
- Auto retransmit
- Auto Acknowledgment with optional payload
- 6-data pipe MultiCeiver™
- 3 separate 32Byte TX and RX FIFOs
Processor and Memory
- 8-bit Enhanced 8051 CPU
- Reduced instruction cycle time
- Up to 16MHz operation
- 32-bit multiplication/division unit
- 1KB SRAM + 256B IRAM
- 16KB program Flash
- 1KB data Flash + 512B high-endurance data Flash
Oscillators and Timers
- 16MHz XO
- 16MHZ RC
- 32kHz XO
- 32kHz RC
- 24-bit RTC
- 3x 16-bit timers/counters
System Peripherals
- 8x8 Galois Field Multiplier for AES acceleration
- Random Number Generator
Digital I/O
- SPI Master/Slave
- 2-wire Master/Slave
- UART
Analog I/O
- 6 to 12-bit ADC with up to 14 input channels
- Analog comparator
GPIO
- Up to 31 GPIO pins
- Configurable type, direction, drive strength, and pull up/down
- Configurable pin to I/O peripheral assignment
Power supply
- Internal linear voltage regulator
- 1.9 to 3.6V supply range
Temperature range of -40 to +80 ºC
Package options
- 24-pin 4 x 4mm QFN (7 GPIO)
- 32-pin 5 x 5mm QFN (15 GPIO)
- 48-pin 7 x 7mm QFN (31 GPIO)
The nRF24LE1 is supported by the following development tools and software:
| Product | Brief description |
| nRF24LE1 Development Kit | nRFgo Development Kit for Nordic nRF24LE1 Flash/OTP ICs |
| nRFgo Starter Kit | Common Development Platform for Nordic’s wireless ICs |
| nRFgo SDK | Software Development Kit for nRF24L Series 2.4GHz SoCs |
| nRFgo Studio | PC application for configuring and evaluating Nordic nRF24L Series SoCs |
| nRF24LE1 Programming Kit | Flash/OTP programming nRFgo add-on including socket for programming un-mounted nRF24LE1 Flash/OTP ICs |
nRF24LE1 is supported by the following reference designs
| Part # | Brief description |
| nRFready Desktop | Wireless mouse, keyboard and remote control reference design |
| nRFready Basic Remote | RF remote control reference design |
| nRFready R/C Racing | RF remote controller toy reference design |
Product Specificaton
| Code | Name | Version |
|---|---|---|
| nRF24LE1-PS | nRF24LE1 Product Specification | 1.6 |
| PAN-020 | nRF24LE1 Build C Product Anomaly Notice | 3.0 |
| PCN-059 | Product Change Notification - Cu as additional bond wire option | 1.0 |
Application Note
| Code | Name | Version |
|---|---|---|
| nAN-15 | Creating Applications with the Keil C51 C Compiler | 1.1 |
| nAN-18 | nRF24LE1 firmware update over the air | 1.0 |
| nAN-19 | nAN-19 nRF24LE1 with support for infrared protocols | 1.0 |
| nAN-20 | Using external, non-volatile memory with the nRF24LE1 [Firmware included] | 1.0 |
| nAN-22 | Generic data transfer using USB HID | 1.0 |
| nAN24-08 | nRF Performance Test Instructions | 1.1 |
| nAN24-12 | Software examples using ShockBurst modes in nRF24L01 and nRF24LU1 | 2.1 |
| nAN24-13 | How to measure crystal start up time for nRF24LE1 | 1.0 |
| nAN24-14 | Using flash devices as development platforms for OTP devices | 1.0 |
| nAN24-17 | Using a 2450BM14A0002 Balun with nRF24LE1 QFN32 | 1.0 |
| nAN400-08 | QFN Soldering Reflow Guidelines | 1.1 |
White Paper
| Code | Name | Version |
|---|---|---|
| nWP-001 | Benefits of Total Integration of Large RF Circuits | |
| nWP-003 | Design-in of RF circuits | |
| nWP-005 | Introduction to wireless networks | |
| nWP-006 | nRF Performance Test Guidelines | 1.0 |
| nWP-008 | Quarterwave printed monopole antenna for 2.4GHz | |
| nWP-010 | Regulatory and Compliance Standards for RF Devices | |
| nWP-011 | Sharing crystal with a microcontroller (MCU) | 1.1 |
| nWP-013 | Tuning the nRF24xx matching network | |
| nWP-015 | Crystal Oscillator Design Considerations |
Reference Layout
| Code | Name | Version |
|---|---|---|
| nRF24LE1-Q24-DF | Design Files for nRF24LE1 Q24 package | |
| nRF24LE1-Q32-DF | Design Files for nRF24LE1 Q32 package | |
| nRF24LE1-Q48-DF | Design Files for nRF24LE1 Q48 package |
Product Brief
| Code | Name | Version |
|---|---|---|
| nRF24LE1-O-PB | nRF24LE1 OTP Product Brief | 1.0 |
| nRF24LE1-PB | nRF24LE1 Product Brief |
Qualification Reports
| Code | Name | Version |
|---|---|---|
| nRF24LE1-F16Q24-MCR | nRF24LE1-F16Q24 Material Composition Report | 2012_02 |
| nRF24LE1-F16Q32-MCR | nRF24LE1-F16Q32 Material Composition Report | 2011_07 |
| nRF24LE1-F16Q48-MCR | nRF24LE1-F16Q48 Material Composition Report | 2011_07 |
| nRF24LE1-HSR | nRF24LE1 Hazardous Substance Report, ATP (Cu bond wire) | 2011_08 |