Pin Attributes - Texas Instruments WL18 7MOD Series Manual

WL1807MOD, WL1837MOD
SWRS170J – MARCH 2014 – REVISED APRIL 2021

7.1 Pin Attributes

Table 7-1 describes the module pins.
PIN NAME
Clocks and Reset Signals
WL_SDIO_CLK_1V8
EXT_32K
WLAN_EN
BT_EN
Power-Management Signals
VIO_IN
VBAT_IN
VBAT_IN
TI Reserved
GPIO11
GPIO9
GPIO10
GPIO12
RESERVED1
RESERVED2
GPIO4
RESERVED3
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Table 7-1. Pin Attributes
TYPE/ SHUTDOWN
PIN NO.
(1)
DIR STATE
8 I Hi-Z
36 ANA
40 I PD
41 I PD
38 POW PD
46 POW
47 POW
2 I/O PD
3 I/O PD
4 I/O PU
5 I/O PU
21 I PD
22 I PD
25 I/O PD
62 O PD
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AFTER CONNECTIVITY
VOLTAGE
POWER
LEVEL
1807
(1)
UP
Hi-Z 1.8 V v
– v
PD 1.8 V v
PD 1.8 V x
PD 1.8 V v
VBAT v
VBAT v
PD 1.8 V v
PD 1.8 V v
PU 1.8 V v
PU 1.8 V v
PD 1.8 V x
PD 1.8 V x
PD 1.8 V v
PD 1.8 V x
WL1807MOD WL1837MOD
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DESCRIPTION
1837
WLAN SDIO clock. Must
v
be driven by the host.
Input sleep clock:
v
32.768 kHz
Mode setting: high =
v
enable
Mode setting: high =
v enable. If Bluetooth is not
used, connect to ground.
Connect to 1.8-V external
v
VIO
Power supply input, 2.9 to
v
4.8 V
Power supply input, 2.9 to
v
4.8 V
Reserved for future use.
v
NC if not used.
Reserved for future use.
v
NC if not used.
Reserved for future use.
v
NC if not used.
Reserved for future use.
v
NC if not used.
Reserved for future use.
x
NC if not used.
Reserved for future use.
x
NC if not used.
Reserved for future use.
v
NC if not used.
Reserved for future use.
x NC if not used. Option:
External TCXO.
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