nRF24LU1
2.4GHz RF System-on-Chip (SoC) with Flash and USBNot recommended
Description
This product is not recommended for new designs. Nordic recommends the nRF24LU1+.
The Nordic nRF24LU1 is a highly integrated, ultra low power 2.4GHz RF System-on-Chip (SoC) for the 2.4GHz ISM (Industrial, Scientific and Medical) band. It includes a 2.4GHz RF transceiver core, 8-bit CPU, Full-speed USB 2.0 device controller, and embedded Flash memory. With an integrated voltage regulator enabling it to be powered directly from the USB VBUS, the nRF24LU1 is ideally suited for ultra compact USB dongles for wireless peripherals. The on-chip Flash can also be upgraded over the USB interface enabling easy deployment of bug fixes and new features to end-users.
The Nordic nRF24LU1 integrates a Nordic nRF24L01 2.4GHz RF transceiver core, enhanced 16MHz 8-bit 8051 compatible CPU, 2kB + 256B RAM, 16kB embedded Flash, a Full-speed USB 2.0-compliant device controller, and a range of system peripherals including a hardware AES co-processor and PWM.
The nRF24LU1 is available in a 5 x 5mm 32-pin QFN package with 6 generic I/O pins.
Features
- Single chip solution for compact 2.4GHz USB dongles
-
Low cost BoM – powers directly from USB VBUS and supports
use of a single, low cost 16MHz ±60ppm crystal - Integrates Nordic nRF24L01+ radio core, enhanced 8051 CPU, 16KB Flash, and Full-speed USB 2.0-compliant device controller
- Supports firmware upgrades over USB for easy deployment of new features and bug fixes to end-users
- On-air compatible with all Nordic nRF24L Series in 1 and 2Mbps mode
- On-air compatible with Nordic nRF24E and nRF240 Series in 1Mbps mode
Applications
- Compact USB dongles for 2.4GHz RF wireless peripherals
- Embedded 2.4GHz RF wireless connectivity
Related Products
N/A
Ordering codes
Tags
The Nordic nRF24LU1 is a highly integrated, ultra low power (ULP) 2.4GHz RF System-on-Chip (SoC) for the 2.4GHz ISM (Industrial, Scientific and Medical) band.
Low power consumption
- 480µA standby mode
- 4.5mA USB active
- 6mA active mode with CPU at 16MHz
- 11mA Radio TX at 0dBm
- 12mA 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 1Mbps or 2Mbps
- -82dBm RX sensitivity at 2Mbps
- -85dBm RX sensitivity at 1Mbps
- Compatible with a 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
- 2KB SRAM + 256B IRAM
- 16KB program Flash
USB Device Controller
- Full-speed USB 2.0 compliant
- Up to 12Mbps
- 5 input and 5 output Bulk/Interrupt endpoints
- 1 input and 1 output double buffered iso-synchronous endpoints
- Endpoint 0 for control
- 512B endpoint RAM
- On-chip programmable pull-up resistor for D+
Oscillators, PLLs and Timers
- 16MHz XO
- 48MHz PLL
- 24-bit RTC
- 3x 16-bit timer/counters
System Peripherals
- 128-bit AES co-processor
Digital I/O
- SPI Master/Slave
- UART
GPIO
- 6 GPIO pins
- Configurable type, direction, drive strength, and pull up/down
- Configurable pin to I/O peripheral assignment
Power supply
- Internal linear voltage regulator
- 4.0 to 5.25V supply range
- Powers directly from USB VBUS
Temperature range of -40 to +80 ºC
Package options
- 32-pin 5 x 5mm QFN
Product Specificaton
| Code | Name | Version |
|---|---|---|
| nRF24LU1-PS | nRF24LU1 Product Specification | 1.1 |
| PAN-006 | nRF24LU1 Product Anomaly Notice Build CX | 1.0 |
| PAN-008 | nRF24LU1 Product Anomaly Notice Build E | 1.0 |
| 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-20 | Using external, non-volatile memory with the nRF24LE1 [Firmware included] | 1.0 |
| nAN24-12 | Software examples using ShockBurst modes in nRF24L01 and nRF24LU1 | 2.1 |
| nAN24-14 | Using flash devices as development platforms for OTP devices | 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-014 | USB Certification Guidelines | |
| nWP-015 | Crystal Oscillator Design Considerations |
Qualification Reports
| Code | Name | Version |
|---|---|---|
| nRF24LU1-HSR | nRF24LU1 Hazardous Substance Report | 2010_11 |
| nRF24LU1-MCR | nRF24LU1 Material Composition Report | 2011_08 |