CC2640R2L
ZHCSRK4A –APRIL 2020 –REVISED SEPTEMBER 2020
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表7-1. Signal Descriptions –RGZ Package (continued)
NAME
NO.
44
13
22
34
3
TYPE
DESCRIPTION
VDDS
Power
1.8-V to 3.8-V main chip supply(1)
1.8-V to 3.8-V DIO supply(1)
1.8-V to 3.8-V DIO supply(1)
1.8-V to 3.8-V DC/DC supply
32-kHz crystal oscillator pin 1
32-kHz crystal oscillator pin 2
24-MHz crystal oscillator pin 1
24-MHz crystal oscillator pin 2
Ground –Exposed Ground Pad
VDDS2
Power
VDDS3
Power
VDDS_DCDC
X32K_Q1
X32K_Q2
X24M_N
X24M_P
EGP
Power
Analog I/O
Analog I/O
Analog I/O
Analog I/O
Power
4
46
47
(1) For more details, see the technical reference manual (listed in 节11.3).
(2) Do not supply external circuitry from this pin.
(3) For design consideration regarding noise immunity for this pin, see the JTAG Interface chapter in the CC13x0, CC26x0 SimpleLink™
Wireless MCU Technical Reference Manual
(4) If internal DC/DC is not used, this pin is supplied internally from the main LDO.
(5) If internal DC/DC is not used, this pin must be connected to VDDR for supply from the main LDO.
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