nRF24L01 Nordic VLSI, nRF24L01 Datasheet - Page 3

• Manufacturer Part Number: nRF24L01
• Manufacturer: Nordic VLSI

PRODUCT SPECIFICATION
nRF24L01 Single Chip 2.4 GHz Radio Transceiver
PIN FUNCTIONS
PIN ASSIGNMENT
Nordic Semiconductor ASA
Revision: 1.0
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Figure 2 nRF24L01 pin assignment (top view) for a QFN20 4x4 package.
Name
CE
CSN
SCK
MOSI
MISO
IRQ
VDD
VSS
XC2
XC1
VDD_PA
ANT1
ANT2
VSS
VDD
IREF
VSS
VDD
DVDD
VSS
MOSI
MISO
CSN
SCK
CE
Pin function
Digital Input
Digital Input
Digital Input
Digital Input
Digital Output
Power
Analog Output
Analog Input
Power Output
RF
RF
Power
Power
Analog Input
Power
Power
Power
Digital Output
Power
Power Output
1
2
3
4
5
- Vestre Rosten 81, N-7075 Tiller, Norway
20
IRQ
VSS
6
Table 2 nRF24L01 pin function
Description
Chip Enable Activates RX or TX mode
SPI Chip Select
SPI Clock
SPI Slave Data Input
SPI Slave Data Output, with tri-state option
Maskable interrupt pin
Power Supply (+3V DC)
Ground (0V)
Crystal Pin 2
Crystal Pin 1
Power Supply (+1.8V) to Power Amplifier
Antenna interface 1
Antenna interface 2
Ground (0V)
Power Supply (+3V DC)
Reference current
Ground (0V)
Power Supply (+3V DC)
Positive Digital Supply output for de-coupling purposes
Ground (0V)
DVDD
VDD
19
7
nRF24L01
QFN20 4x4
Page 3 of 43
VDD
18
VSS
8
VSS
17
XC2
9
-
16
XC1
IREF
10
Phone [phone]
15
14
13
12
11
VDD_PA
ANT1
ANT2
-
VDD
VSS
Fax [phone]
September 2006