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WizFi250 Datasheet
WizFi250 Datasheet
Introduction
The WizFi250 is a small size wireless module.
The WizFi250 provides for the highest-level integration, featuring 802.11b/g and 802.11n.
It includes a 2.4 GHz WLAN CMOS power amplifier (PA) that meets the output power requirements of
most handheld systems.
Along with the integrated power amplifier, the WizFi250 also includes integrated transmit and receive
baluns, further reducing the overall solution cost.
The small size & low profile physical design make it easier for system design to enable high
performance wireless connectivity without space constrain.
Hardware WAPI acceleration engine, AES, TKIP, WPA and WPA2 are supported to provide the latest
security requirement on your network.
For the software and driver development, WIZnet provides extensive technical document and
reference software code for the system integration.
2013/08/28 09:43 · ssekim
Features
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Single band 2.4GHz IEEE 802.11b/g/n
Integrated RF power amplifier
Supports wireless data rates up to 65Mbit/s
1MB Flash Memory, 128KB SRAM, 1MB Serial Flash
Supports per packet Rx Antenna diversity
Low power consumption & excellent power management performance extend battery life.
Small size suitable for low volume system integration.
Easy for integration into mobile and handheld device with flexible system configuration.
2.412-2.484 GHz two SKUs for worldwide market.
Lead Free design which supporting Green design requirement, RoHS Compliance.
Device Package : 28×20 mm (17×20 mm)
Serial Interface : UART, SPI
Powerful Web server provides
Soft AP
Enough memory retention
Wi-Fi Security (WEP, WPA/WPA2PSK)
L2 Switching
OTA(Over The Air F/W Upgrading)
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2013/08/28 09:42 · ssekim
Block diagram
The WizFi250 module is designed based on WiFi block and MCU block . It supports generic SPI, UART
interface to connect the WLAN to the host processor. A simplified block diagram of the WizFi250
module is depicted in the Fig. below.
Wiki site - http://wizwiki.net/wiki/
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2013/08/28 09:47 · ssekim
Pin description
Pin map
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WizFi250 Datasheet
Pin description
Pin Number Pin Define Type Description
1
GND
Groud
2
VBAT_WL
I Battery supply input
3
VBAT_WL
I Battery supply input
4
GND
- Ground
5
VDDIO_3V3_WL I Digital I/O supply.
6
GND
- Ground
7
NC
- –
8
NC
- –
9
NC
- –
10
NC
- –
11
NC
- –
12
NC
- –
13
GND
- Ground
14
NC
- –
15
GND
- Ground
16
NC
- –
17
NC
- –
18
NC
- –
19
NC
- –
20
NC
- –
21
SPI_MISO
I/O SPI_MISO
22
SPI_SCK
I/O SPI CLOCK
23
SPI_MOSI
I/O SPI_MOSI
24
SPI_SS
I/O SPI_SS
25
GND
- Ground
26
VDD_3V3
I Power supply for I/O and the internal regulator
27
VDD_3V3
I Power supply for I/O and the internal regulator
28
GND
- Ground
29
UART2_RTS
I/O Active-low request-to-send signal for UART2 interface
30
UART2_CTS
I/O Active-low clear-to-send signal for UART2 interface
31
UART2_RXD
I/O Serial data input for UART2 interface
32
UART2_TXD
I/O Serial data output for UART2 interface
33
NC
- –
34
RESET
I RESET pin (Active Low)
35
NC
- –
36
NC
- –
37
GND
- Ground
38
VBAT_MICRO
I Power supply when VDD_3V3 is not present.
39
GND
- Ground
40
GPIO1
I/O GPIO1 pin
41
BOOT_MODE
I BOOT MODE pin (Active low)
42
FUNCTION
I FUNCTION pin (Active Low)
43
GPIO5
I/O GPIO5 pin
44
GPIO6
I/O GPIO6 pin
Wiki site - http://wizwiki.net/wiki/
Last update: 2013/10/04 15:54
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45
46
47
48
49
50
GPIO7
GPIO8
GPIO9
Wi-Fi_LED
MODE_LED
GPIO14
I/O
I/O
I/O
I/O
I/O
I/O
51
JTAG_TRST
I
52
JTAG_TDO
I/O
53
JTAG_TDI
I/O
54
JTAG_TMS
I
55
JTAG_TCK
I
56
57
58
59
GND
GND
GND
GND
-
60
SLEEP_CLK
I
GPIO7 pin
GPIO8 pin
GPIO9 pin
Wi-Fi_LED pin
MODE_LED pin
GPIO14 pin
For normal operation, if JTAG is not used, this pin can be left
unconnected (NC)
For normal operation, if JTAG is not used, this pin can be left
unconnected (NC)
For normal operation, if JTAG is not used, this pin can be left
unconnected (NC)
For normal operation, if JTAG is not used, this pin can be left
unconnected (NC)
For normal operation, if JTAG is not used, this pin can be left
unconnected (NC)
Ground
Ground
Ground
Ground
Input pin for optional high- precision 32.768kHz Clock(Sleep
Clock).
Active-low request-to-send signal for UART1 interface
Active-low clear-to-send signal for UART1 interface
Serial data input for UART1 interface
Serial data output for UART1 interface
Ground
61
UART1_RTS
I/O
62
UART1_CTS
I/O
63
UART1_RXD
I/O
64
UART1_TXD
I/O
65~73
GND
2013/08/28 10:41 · ssekim
Technical specification
Absolute maximum rating
Supply Power
Max +3.6 Volt
NonOperating Temperature - 40° to 85° Celsius
Voltage ripple
+/- 2% Max
Values not exceeding Operating voltage
Recommendable operation condition
Temperature, humidity
The WizFi250 has to withstand the operational requirements as listed in the table below.
Operating Temperature -20° to 85° Celsius
Humidity range
Max 95%, Non condensing, relative humidity
* The maximum operating ambient temperature range can up to 85°, but exposure to
absolute-maximum-rated conditions may cause performance degradation and affect device reliability.
So we recommend -20° to 75° for the best performance.
Voltage
Power supply for the WizFi250 module will be provided by the host via the power pins.
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WizFi250 Datasheet
Symbol
Parameter
Min Typ. Max Unit
VBAT_WL
power supply for WizFi250 3.0 3.3 3.6 V
VDDIO_3V3_WL host Interface power supply 3.0 3.3 3.6 V
VBAT_MICRO backup operating voltage 3.0 3.3 3.6 V
VDD_3V3
power supply for MCU
3.0 3.3 3.6 V
Current consumption
The WizFi250 on operation output current consumption :
WiFi mode
Typ.
Max.
(802.11n)
(RMS)
Normal mode Not Associated
14 mA 18 mA
Normal mode Associated
67 mA 69 mA
Associated
Normal mode
32 mA 65 mA
(IEEE Power Save mode)
Associated
Stop mode
14 mA 17 mA
(IEEE Power Save mode)
Stop mode Not Associated
3 mA 23 mA
MCU mode
The WizFi250 on TX mode output current consumption :
(Typical spec is defined @3.3V 25℃ ; MAX. spec is defined @3.0V 70℃)
Current Consumption
Typ. Max.
Tx output power @16.5 dBm on 11b 1M
385 mA 430 mA
Tx output power @ 16.5 dBm on 11b 11M 370 mA 410 mA
Tx output power @ 15 dBm on 11g 6M
345 mA 380 mA
Tx output power @ 13 dBm on 11g 54M
290 mA 320 mA
Tx output power @ 14.5 dBm on 11n MCS0 315 mA 350 mA
Tx output power @ 12 dBm on 11n MCS7 265 mA 295 mA
The WizFi250 on RX mode current consumption :
(Typical spec is defined @3.3V 25℃; MAX. spec is defined @3.0V 70℃)
Current Consumption Typ. Max.
Rx @ 11b 1M
120 mA 150 mA
Rx @ 11b 11M
120 mA 150 mA
Rx @ 11g 6M
120 mA 150 mA
Rx @ 11g 54M
120 mA 150 mA
Rx @ 11n MCS0
120 mA 150 mA
Rx @ 11n MCS7
120 mA 150 mA
Wireless specifications
The WizFi250 complies with the following features and standards;
Features
Description
WLAN Standards
IEEE 802 11 b/g/n
Antenna Connecter Port One printed antenna, one U.FL connector for external antenna
Frequency Band
2.400 GHz ~ 2.484 GHz
Number of Sub Channels CH1 to CH14
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Modulation
DSSS, CCK, OFDM, BPSK, QPSK,16QAM, 64QAM
11b 1, 2, 5.5, 11 (Mbps)
Supported data rates
11g 6, 9, 12, 18, 24, 36, 48, 54 (Mbps)
11n HT20 MCS0(6.5Mbps) to HT20 MCS7(65Mbps)
Specifications of WiFi’s output power, evm, sensitivity
The WizFi250 WiFi output power as list in the table below:
Characteristics
Typ. Criteria Unit
1M 16.5 +/- 1.5 dBm
RF Average Output Power, 802.11b CCK Mode
11M 16.5 +/- 1.5 dBm
6M 15 +/- 1.5 dBm
RF Average Output Power, 802.11g OFDM Mode
54M 13 +/- 1.5 dBm
MCS0 14.5 +/- 1.5 dBm
RF Average Output Power, 802.11n OFDM Mode
MCS7 12 +/- 1.5 dBm
WiFi TX EVM follow the IEEE spec that as list in the table below:
Characteristics
IEEE Spec Unit
@1 Mbps -10
dB
RF Average Output EVM (11b)
@11 Mbps -10
dB
@6 Mbps -5
dB
RF Average Output EVM (11g)
@54 Mbps -25
dB
@ MCS0 -5
dB
RF Average Output EVM (11n)
@ MCS7 -28
dB
The WizFi250 Wi-Fi sensitivity as list in the table below:
Receiver Characteristics
Typ. Max. Unit
PER