nRF24L01 Datasheet – Single Chip 2.4GHz Transceiver

This is one of the Transceiver types.

Part Number : nRF24L01

Function : Single Chip 2.4GHz Transceiver

Package :  Compact 20-pin 4x4mm QFN

Manufacturers : Nordicsemi

See the preview image and the PDF file for more information.

Image :


Description :

The nRF24L01 is a single chip 2.4GHz transceiver with an embedded baseband protocol engine (Enhanced ShockBurst™), designed for ultra low powerwireless applications. The Device is designed for operation in the world wide ISM frequency band at 2.400 – 2.4835GHz. An MCU (microcontroller) and very few external passive components are needed to design a radio system with the nRF24L01.
The Device is configured and operated through a SerialPeripheral Interface (SPI.) Through this interface the register map is available. The register map contains all configuration registers in the nRF24L01 and is accessible in all operation modes of the chip.

Application Circuits

nRF24L01 Circuit
The embedded baseband protocol engine (EnhancedShockBurst) is based on packet communication and supports various modes from manual operation toadvanced autonomous protocol operation. Internal FIFOs ensure a smooth data flow between the radio front end and the system’s MCU. Enhanced Shock Burst reduces system costby handling all the high-speed link layer operations.

Official HomePage :

nRF24L01 Pinout and Block Diagram

nRF24L01 datasheet



1. Wireless PC Peripherals
2. Mouse, keyboards and remotes
3. 3-in-one desktop bundles
4. Advanced Media center remote controls
5. VoIP headsets
6. Game controllers
7. Sports watches and sensors
8. RF remote controls for consumer electronics
9. Home and commercial automation
10. Ultra low power sensor networks
11. Active RFID
12. Asset tracing systems
13. Toys

Reference Site :

nRF24L01 2.4GHz Radio/Wireless Transceivers How-To : [ Link ]

nRF24L01 Datasheet

Download Datasheet : [ nRF24L01.PDF ]


NE555 Datasheet – 555, Single Bipolar Timer

This is one of the timer types.

Part Number : NE555

Function : General Purpose Single Bipolar Timer

Package : DIP 8 Pin

Manufactures : ST Microelectronics

See the preview image and the PDF file for more information.



Description :

The NE555, SA555, and SE555 monolithic timing circuits are highly stable controllers capable of producing accurate time delays or oscillation. In the time delay mode of operation, the time is precisely controlled by one external resistor and capacitor. For a stable operation as an oscillator, the free running frequency and the duty cycle are both accurately controlled with two external resistors and one capacitor. The circuit may be triggered and reset on falling waveforms, and the output structure can source or sink up to 200 mA.

NE555 Pinout



1. Low turn-off time
2. Maximum operating frequency greater than 500 kHz
3. Timing from microseconds to hours
4. Operates in both astable and monostable modes
5. Output can source or sink up to 200 mA
6. Adjustable duty cycle
7. TTL compatible
8. Temperature stability of 0.005% per °C

NE555 Datasheet

LM324 pdf