Product Specs

Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway - Phone [phone] - Fax [phone]
Page 2 of 38
Revision: 1.1
November 2005
PRELIMINARY PRODUCT SPECIFICATION
nRF24L01 Single Chip 2.4 GHz Radio Transceiver
Type Number
Description
Version
nRF24L01
20 pin QFN 4x4, lead free (green)
A
nRF24L01 IC
Bare Dice
A
nRF24L01-EVKIT
Evaluation kit (2 test PCB, 2 configuration PCB, SW)
1.0
Table 2 nRF24L01 ordering information
PIN FUNCTIONS
Pin
Name
Pin function
Description
1
CE
Digital Input
Chip Enable Activates RX or TX mode
2
CSN
Digital Input
SPI Chip Select
3
SCK
Digital Input
SPI Clock
4
MOSI
Digital Input
SPI Slave Data Input
5
MISO
Digital Output
SPI Slave Data Output, with tri-state option
6
IRQ
Digital Output
Maskable interrupt pin
7
VDD
Power
Power Supply (+3V DC)
8
VSS
Power
Ground (0V)
9
XC2
Analog Output
Crystal Pin 2
10
XC1
Analog Input
Crystal Pin 1
11
VDD_PA
Power Output
Power Supply (+1.8V) to Power Amplifier
12
ANT1
RF
Antenna interface 1
13
ANT2
RF
Antenna interface 2
14
VSS
Power
Ground (0V)
15
VDD
Power
Power Supply (+3V DC)
16
IREF
Analog Input
Reference current
17
VSS
Power
Ground (0V)
18
VDD
Power
Power Supply (+3V DC)
19
DVDD
Power Output
Positive Digital Supply output for de-coupling purposes
20
VSS
Power
Ground (0V)
IRQ
VDD
VSS
XC2 XC1
Figure 2 nRF24L01 pin assignment (top view) for a QFN20 4x4 package.
IF BPF