nRF24L01 Datasheet PDF – 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

Manufacturer: Nordicsemi

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




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 :



1. Worldwide 2.4GHz ISM band operation

2. Up to 2Mbps on air data rate

3. Ultra low power operation

4. 11.3mA TX at 0dBm output power

5. 12.3mA RX at 2Mbps air data rate

6. 900nA in power down

7. 22μA in standby-I

8. On chip voltage regulator


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

nRF24L01 Datasheet PDF

nRF24L01 pdf

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75A176 Datasheet PDF – Differential Bus Transceiver

Part Number: SN75ALS176D, SN75ALS176DR

Marking : 75A176

Function: Differential Bus Transceiver

Package: SO 8 Pin Type

Manufacturer: Texas Instruments




The 75A176 is differential bus transceiver.

The SN65ALS176 and SN75ALS176 series differential bus transceivers are designed for bidirectional data communication on multipoint bus transmission lines. They are designed for balanced transmission lines and meet TIA/EIA-422-B, TIA/EIA-485-A, and ITU Recommendations V.11 and X.27.

The SN65ALS176 and SN75ALS176 series combine a 3-state, differential line driver and a differential input line receiver, both of which operate from a single 5-V power supply. The driver and receiver have active-high and active-low enables, respectively, that can be connected together externally to function as a direction control.

The driver differential outputs and the receiver differential inputs are connected internally to form a differential input/output (I/O) bus port that is designed to offer minimum loading to the bus when the driver is disabled or VCC = 0. This port features wide positive and negative common-mode voltage ranges, making the device suitable for party-line applications.

SN75ALS176 datasheet



1. Wide Positive and Negative Input/Output Bus-Voltage Ranges

2. Thermal Shutdown Protection

3. Driver Positive and Negative Current Limiting

4. Receiver Input Hysteresis

5. Glitch-Free Power-Up and Power-Down Protection

6. Receiver Open-Circuit Fail-Safe Design

75A176 Datasheet PDF Download

SN75ALS176 pdf

Other data sheets are available within the file: SN65ALS176DR, SN65ALS176P, SN65LBC176D, SN65LBC176DR