8
SWRS158B – FEBRUARY 2015 – REVISED JULY 2016
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Terminal Configuration and Functions
Copyright © 2015–2016, Texas Instruments Incorporated
Table 4-1. Signal Descriptions – RGZ Package (continued)
NAME
NO.
TYPE
DESCRIPTION
(3)
If internal DC-DC is not used, this pin is supplied internally from the main LDO.
(4)
If internal DC-DC is not used, this pin must be connected to VDDR for supply from the main LDO.
DIO_11
17
Digital I/O
GPIO
DIO_12
18
Digital I/O
GPIO
DIO_13
19
Digital I/O
GPIO
DIO_14
20
Digital I/O
GPIO
DIO_15
21
Digital I/O
GPIO
DIO_16
26
Digital I/O
GPIO, JTAG_TDO, high-drive capability
DIO_17
27
Digital I/O
GPIO, JTAG_TDI, high-drive capability
DIO_18
28
Digital I/O
GPIO
DIO_19
29
Digital I/O
GPIO
DIO_20
30
Digital I/O
GPIO
DIO_21
31
Digital I/O
GPIO
DIO_22
32
Digital I/O
GPIO
DIO_23
36
Digital/Analog I/O
GPIO, Sensor Controller, Analog
DIO_24
37
Digital/Analog I/O
GPIO, Sensor Controller, Analog
DIO_25
38
Digital/Analog I/O
GPIO, Sensor Controller, Analog
DIO_26
39
Digital/Analog I/O
GPIO, Sensor Controller, Analog
DIO_27
40
Digital/Analog I/O
GPIO, Sensor Controller, Analog
DIO_28
41
Digital/Analog I/O
GPIO, Sensor Controller, Analog
DIO_29
42
Digital/Analog I/O
GPIO, Sensor Controller, Analog
DIO_30
43
Digital/Analog I/O
GPIO, Sensor Controller, Analog
JTAG_TMSC
24
Digital I/O
JTAG TMSC, high-drive capability
JTAG_TCKC
25
Digital I/O
JTAG TCKC
RESET_N
35
Digital input
Reset, active-low. No internal pullup.
RF_P
1
RF I/O
Positive RF input signal to LNA during RX
Positive RF output signal to PA during TX
RF_N
2
RF I/O
Negative RF input signal to LNA during RX
Negative RF output signal to PA during TX
VDDR
45
Power
1.7-V to 1.95-V supply, typically connect to output of internal DC-DC
(2) (3)
VDDR_RF
48
Power
1.7-V to 1.95-V supply, typically connect to output of internal DC-DC
(2) (4)
VDDS
44
Power
1.8-V to 3.8-V main chip supply
(1)
VDDS2
13
Power
1.8-V to 3.8-V DIO supply
(1)
VDDS3
22
Power
1.8-V to 3.8-V DIO supply
(1)
VDDS_DCDC
34
Power
1.8-V to 3.8-V DC-DC supply
X32K_Q1
3
Analog I/O
32-kHz crystal oscillator pin 1
X32K_Q2
4
Analog I/O
32-kHz crystal oscillator pin 2
X24M_N
46
Analog I/O
24-MHz crystal oscillator pin 1
X24M_P
47
Analog I/O
24-MHz crystal oscillator pin 2
EGP
Power
Ground – Exposed Ground Pad