MRF24XA_15 Datasheet, PDF (9/258 Pages) Microchip Technology – Low-Power, 2.4 GHz ISM-Band IEEE 802.15.4™ RF

MRF24XA
2.4 Pin Descriptions
TABLE 2-2: MRF24XA PIN DESCRIPTIONS
Pin Symbol
Type
Description
1
AVDD
Power 1.2V supply, normally connected to VREGOUT (pin 29)
2 RFOUTP
AO Differential RF Output (+)
3 RFOUTN
AO Differential RF Output (–)
4
AVDD
Power 1.2V supply, normally connected to VREGOUT (pin 29)⁽¹⁾
5
RFINP
AI Differential RF Input (+)
6
AVSS
Ground Ground
7
RFINN
AI Differential RF Input (–)
8
AVDD
Power 1.2V supply, normally connected to VREGOUT (pin 29)
9
AVSS
Power Ground⁽¹⁾
10 GPIO2
DIO GPIO2
11 GPIO1
DIO GPIO1
12 GPIO0
DIO GPIO0
13
INT
DO Interrupt Output, active-low
14
CS
DI SPI Chip Select Pin, active-low
15
SCK
DI SPI serial clock
16
SDI
DI SPI serial data Input
17
SDO
DO SPI serial data Output
18 RESET
DI Reset Input, active-low
19
DVSS
Ground Digital ground
20
PA
DO External PA enable Output
21
LNA
DO External LNA enable Output
22
DVDD
Power Digital 1.2V supply, normally connected to VREGOUT (pin 29)
23 DVDDIO Power Digital 1.5V–3.6V supply for the IO blocks, normally connected to VREGIN (pin 30)
24
OSC1
AI Crystal oscillator Pin 1, External Clock Input
25
OSC2
AO Crystal oscillator Pin 2
26
AVSS
Ground Ground
27
AVDD
Power 1.2V supply, normally connected to VREGOUT (pin 29)
28 RBIAS
AO External resistor reference pin
29 VREGOUT Power 1.2V regulated Output
30 VREGIN Power 1.5V–3.6V regulator Input
31
AVSS
Ground Ground
32
AVDD
Power 1.2V supply, normally connected to VREGOUT (pin 29)
Legend: A = Analog, D = Digital, I = Input, O = Output
Note 1: In case PCB runs out of space, disconnect these pins.
 2015 Microchip Technology Inc.
Preliminary
DS70005023C-page 9