WizFi220 WIZnet, WizFi220 Datasheet - Page 20

• Manufacturer Part Number: WizFi220
• Description: WiFi / 802.11 Modules 802.11B WIFI MOD LW PWR W/EXT PWR AMP
• Manufacturer: WIZnet

Specifications of WizFi220

• Rohs: yes
• Frequency Band: 2.4 GHz
• Interface Type: SPI, UART

(*) is not available in this version.
(**) To allow for design flexibility and support for multiple sensors with different voltages,
the VDDIO banks are split, such that some of the VDDIO banks can be 1.8 V and some can
be 3.3 V. If a VDDIO bank is connected to 1.8 V then the corresponding I/O signals for that
bank should be driven at the same voltage.
VDDIO Bank 1 : GPIO28~29, JTAG,
VDDIO Bank 2 : SPI1(Master), Misc
VDDIO Bank 3 : GPIO18~23, PWM
VDDIO Bank 4 : I2C, SPI2(Slave), GPIO16~17
VDDIO Bank 5 : UART0~1
VDDIO Bank 6 : GPIO30~31
WizFi 210 User Manual
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UART1_RX/GPIO3
(*)
UART1_TX/GPIO2
(*)
UART0_TX/GPIO1
UART0_RTS/GPIO2
5
UART0_RX/GPIO0
UART0_CTS/GPIO
24
GPIO31
GPIO30
GPIO29 (*)
GPIO28
GND
EXT-ANT
(WIZnet Co., Ltd.)
IO
IO
IO
IO
IO
O
O
O
P
I
I
I
Table 11. Pin description
Pull-down
Pull-down
Pull-down
Pull-down
Pull-down
Pull-down
Pull-down
Pull-down
Pull-down
Pull-down
NA
NA
Universal Asynchronous Receiver
Transmitter 1 Receive Input / General
Purpose Input Output
Universal Asynchronous Receiver
Transmitter 1 Transmitter Output / General
Purpose Input Output
Universal Asynchronous Receiver
Transmitter 0 Transmitter Output / General
Purpose Input Output
Universal Asynchronous Receiver
Transmitter 0 Request to Send Output /
General Purpose Input Out-put
Universal Asynchronous Receiver
Transmitter 0 Receive Input / General
Purpose Input Output
Universal Asynchronous Receiver
Transmitter 0 Clear to Send Input / General
Purpose Input Output
General Purpose Input Output
General Purpose Input Output
General Purpose Input Output
General Purpose Input Output
Ground
External Antenna pad
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