Table 7-1. Pin Description and Attributes (continued)
PIN
DEFAULT FUNCTION
DIGITAL I/O
STATE AT
RESET AND
HIBERNATE
CC3135 DEVICE
PIN NO.
DESCRIPTION
HOSTLESS
MODE
BLE COEX
CC_COEX_
OUT
CC_COEX_
IN
15
FLASH_SPI_CLK
N/A
N/A
N/A
Hi-Z
I
-
External Serial Flash Programming: SPI clock
16
GND
N/A
N/A
N/A
–
Power
-
Ground
17
FLASH_SPI_MOSI
N/A
N/A
N/A
Hi-Z
I
-
External Serial Flash Programming: SPI data in
18
DIO24
Y
Y
Y
Hi-Z
17
Digital input or output
19
DIO28
Y
Y
Y
–
–
18
Digital input or output
20
NC
N/A
N/A
N/A
–
–
-
No Connect
21
Reserved
-
-
-
Hi-Z
–
-
No Connect
22
DIO29
Y
Y
Y
Hi-Z
20
Digital input or output
23
SOP2
Y
Y
-
Hi-Z
O
21
A 100 kΩ pull down resistor is internally tied to
this SOP pin.
24
SOP1
N/A
N/A
N/A
Hi-Z
–
34
A 100 kΩ pull down resistor is internally tied to
this SOP pin. SOP[2:0] used for factory restore.
See
25
GND
N/A
N/A
N/A
–
Power
-
GND
26
GND
N/A
N/A
N/A
–
Power
-
GND
27
GND
N/A
N/A
N/A
–
Power
-
GND
28
GND
N/A
N/A
N/A
–
Power
-
GND
29
GND
N/A
N/A
N/A
–
Power
-
GND
30
GND
N/A
N/A
N/A
–
Power
-
GND
31
RF_ABG
N/A
N/A
N/A
Hi-Z
RF
27, 28, 31
2.4 GHz & 5 GHz RF TX, RX
32
GND
N/A
N/A
N/A
–
Power
-
GND
33
NC
N/A
N/A
N/A
–
–
-
No Connect
34
SOP0
N/A
N/A
N/A
Hi-Z
–
35
A 100 kΩ pull down resistor is internally tied to
this SOP pin. SOP[2:0] used for factory restore.
See
SWRS225D – FEBRUARY 2019 – REVISED MAY 2021
Copyright © 2021 Texas Instruments Incorporated
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