NRF24L01P-R7 datasheet(11/78 Pages) NORDIC

tên linh kiện	NRF24L01P-R7

Giải thích chi tiết về linh kiện	Single Chip 2.4GHz Transceiver

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nRF24L01+ Product Specification

2.2

Pin functions

Table 1. nRF24L01+ pin function

Name

Pin function

Description

Digital Input

Chip Enable Activates RX or TX mode

CSN

Digital Input

SPI Chip Select

SCK

Digital Input

SPI Clock

MOSI

Digital Input

SPI Slave Data Input

MISO

Digital Output

SPI Slave Data Output, with tri-state option

IRQ

Digital Output

Maskable interrupt pin. Active low

VDD

Power

Power Supply (+1.9V - +3.6V DC)

VSS

Power

Ground (0V)

XC2

Analog Output Crystal Pin 2

XC1

Analog Input

Crystal Pin 1

VDD_PA

Power Output Power Supply Output (+1.8V) for the internal

nRF24L01+ Power Amplifier. Must be connected

to ANT1 and ANT2 as shown in Figure 32.

ANT1

Antenna interface 1

ANT2

Antenna interface 2

VSS

Power

Ground (0V)

VDD

Power

Power Supply (+1.9V - +3.6V DC)

IREF

Analog Input

Reference current. Connect a 22k

Ω resistor to

ground. See Figure 32.

VSS

Power

Ground (0V)

VDD

Power

Power Supply (+1.9V - +3.6V DC)

DVDD

Power Output Internal digital supply output for de-coupling pur-

poses. See Figure 32.

VSS

Power

Ground (0V)

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