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WLAN_EN
9
SDIO_D3
22
1)
SDIO_D2
23
SDIO_D1
24
SDIO_D0
25
SDIO_CLK
26
SDIO_CMD
27
BT Interface
Pin Name
Pin No.
FC21_Hardware_Design
Wi-Fi function
DI
control
IO
SDIO data bus D3
IO
SDIO data bus D2
IO
SDIO data bus D1
IO
SDIO data bus D0
DI
SDIO bus clock
IO
SDIO bus command
I/O
Description
Wi-Fi&BT Module Series
FC21 Hardware Design
pin open.
V
min=-0.3V
IL
V
max=0.54V
1.8V power domain.
IL
V
min=1.26V
Active high.
IH
V
max=2.0V
IH
V
max=0.18V
OL
V
min=1.62V
OH
V
min=-0.3V
IL
1.8V power domain
V
max=0.54V
IL
V
min=1.26V
IH
V
max=2.0V
IH
V
max=0.18V
OL
V
min=1.62V
OH
1.8V power domain.
V
min=-0.3V
IL
Require external
V
max=0.54V
IL
pull-up to 1.8V.
V
min=1.26V
IH
V
max=2.0V
IH
V
max=0.18V
OL
V
min=1.62V
OH
V
min=-0.3V
IL
1.8V power domain
V
max=0.54V
IL
V
min=1.26V
IH
V
max=2.0V
IH
V
max=0.18V
OL
V
min=1.62V
OH
V
min=-0.3V
IL
1.8V power domain
V
max=0.54V
IL
V
min=1.26V
IH
V
max=2.0V
IH
V
min=-0.3V
IL
V
max=0.54V
IL
1.8V power domain
V
min=1.26V
IH
V
max=2.0V
IH
V
max=0.18V
OL
V
min=1.62V
OH
V
min=-0.3V
IL
1.8V power domain
V
max=0.54V
IL
V
min=1.26V
IH
V
max=2.0V
IH
DC Characteristics
Comment
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