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CC3135 Datasheet(PDF) 16 Page - Texas Instruments

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Part No. CC3135
Description  SimpleLink Wi-Fi, Dual-Band Network Processor, solution for MCU applications
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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CC3135 Datasheet(HTML) 16 Page - Texas Instruments

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CC3135
SWAS037 – JANUARY 2019
www.ti.com
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Product Folder Links: CC3135
Terminal Configuration and Functions
Copyright © 2019, Texas Instruments Incorporated
Table 4-2. Signal Descriptions (continued)
FUNCTION
SIGNAL NAME
PIN
NO.
PIN
TYPE
SIGNAL
DIRECTION
DESCRIPTION
(2)
This pin has dual functions: as a SOP[2] (device operation mode), and as an external TCXO enable. As a TXCO enable, the pin is an
output on power up and driven logic high. During hibernate low-power mode, the pin is in a Hi-Z state but is pulled down for SOP mode
to disable TCXO. Because of the SOP functionality, the pin must be used as an output only.
FLASH SPI
FLASH_SPI_CLK
11
O
O
Clock to SPI serial flash (fixed default)
FLASH_SPI_DOUT
12
O
O
Data to SPI serial flash (fixed default)
FLASH_SPI_DIN
13
I
I
Data from SPI serial flash (fixed default)
FLASH_SPI_CS
14
O
O
Device select to SPI serial flash (fixed default)
UART
UART1_nRTS
50
I/O
O
UART1 request-to-send (active low)
UART1_TX
55
I/O
I
UART TX data
UART1_RX
57
I/O
O
UART RX data
UART1_nCTS
61
I/O
I
UART1 clear-to-send (active low)
Sense-On-
Power
SOP2
21(2)
O
I
Sense-on-power 2
SOP1
34
I
I
Configuration sense-on-power 1
SOP0
35
I
I
Configuration sense-on-power 0
Reset
nRESET
32
I
I
Global master device reset (active low)
nHIB
nHIB
2
I
I
Hibernate signal input to the NWP subsystem (active
low)
RF
A_RX
27
I
I
WLAN analog A-band receive
A_TX
28
O
O
WLAN analog A-band transmit
RF_BG
31
I/O
I/O
WLAN analog RF 802.11 b/g bands
Test Port
TEST_58
58
O
O
Test Signal
TEST_59
59
I
I
Test Signal
TEST_60
60
O
O
Test Signal
TEST_62
62
O
O
Test Signal
4.4
Connections for Unused Pins
All unused pin should be configured as stated in Table 4-3.
Table 4-3. Connections for Unused Pins
FUNCTION
SIGNAL DESCRIPTION
PIN
NUMBER
ACCEPTABLE PRACTICE
PREFERRED PRACTICE
DIO
Digital input or output
Wake up I/O source should not be
floating during hibernate.
All the I/O pins will float while in
Hibernate and Reset states. Ensure
pullup and pulldown resistors are
available on board to maintain the
state of the I/O.
Leave unused DIOs as NC
No Connect
NC
26
Unused pin, leave as NC.
Unused pin, leave as NC
SOP
Configuration sense-on-
power
Ensure pulldown resistors are
available on unused SOP pins
69.8K Pull down resistor
on SOP0 and SOP1 used
as switch control pins,
100K pull down on SOP2
Reset
RESET input for the device
Never leave the reset pin floating
Clock
RTC_XTAL_N
When using an external oscillator,
add a 100-kΩ pullup resistor to VIO
WLAN_XTAL_N
When using an external oscillator,
connect to ground if unused


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