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WB2L Datasheet 

Hangzhou Tuya Information Technology Co., Ltd. 

V1.0.0 

8

3  Electrical Parameters 

3.1  Absolute Electrical Parameters 

Table 3-1 Absolute electrical parameters

 

Parameter 

Description 

Minimum 

Value 

Maximum 

Value 

Unit 

Ts 

Storage 

temperature 

–40 

105 

°C 

VBAT 

Power supply 

voltage 

3.0 

3.6 

Static electricity voltage 

(human body model) 

Tamb = 25°C 

N/A 

kV 

Static electricity voltage 

(machine model) 

Tamb = 25°C 

N/A 

0.5 

kV 

 

3.2  Electrical Conditions 

Table 3-2 Normal electrical conditions

 

Parameter 

Description 

Minimum 

Value 

Typical 

Value 

Maximum 

Value 

Unit 

Ta 

Working temperature 

–40 

N/A 

105 

°C 

VBAT 

Power supply voltage 

3.0 

3.3 

3.6 

V

IL

 

I/O low-level input 

–0.3 

N/A 

VCC x 0.25 

V

IH

 

I/O high-level input 

VCC x 0.75 

N/A 

VCC 

V

OL

 

I/O low-level output 

N/A 

N/A 

VCC x 0.1 

V

OH

 

I/O high-level output 

VCC x 0.8 

N/A 

VCC 

I

max

 

I/O drive current 

N/A 

N/A 

12 

mA 

 

Summary of Contents for WB2L

Page 1: ...all function libraries of the Wi Fi MAC and TCP IP protocols You can develop embedded Wi Fi products as required 1 1 Features Embedded low power 32 bit CPU which can also function as an application pr...

Page 2: ...BT Support Bluetooth V4 0 Maximum output power 7dBm EIRP Onboard PCB antenna with a gain of 1 dBi 1 2 Applications Intelligent building Smart household and home appliances Smart socket and light Indu...

Page 3: ...WB2L Datasheet Hangzhou Tuya Information Technology Co Ltd V1 0 0 3 Change History No Date Change Description Version After Change 1 2019 11 07 This is the first release 1 0 0...

Page 4: ...lectrical Conditions 8 3 3 RF Current Consumption 9 3 4 Working Current 9 4 RF Features 10 4 1 Basic RF Features 10 4 2 TX Performance 10 4 3 RX Performance 11 5 Antenna Information 11 5 1 Antenna Typ...

Page 5: ...he PCB to which WB2L applies 14 Figure 6 6 HIC for WB2L 15 Figure 6 7 Oven temperature curve 16 Tables Table 2 1 WB2L interface pins 6 Table 2 2 WB2L test pins 7 Table 3 1 Absolute electrical paramete...

Page 6: ...igure 2 1 shows the WB2L front and rear views Figure 2 1 WB2L front and rear views 2 2 Interface Pin Definition Table 2 1 WB2L interface pins Pin No Symbol I O Type Function 1 PWM2 I O Hardware PWM pi...

Page 7: ...ype Function N A GND P Power supply reference ground pin N A RST Input Hardware reset pin It is at a high level by default and is active at a low level N A U1_TXD I O UART1_TX which is used as a user...

Page 8: ...n body model Tamb 25 C N A 2 kV Static electricity voltage machine model Tamb 25 C N A 0 5 kV 3 2 Electrical Conditions Table 3 2 Normal electrical conditions Parameter Description Minimum Value Typic...

Page 9: ...stant receiving 98 100 mA 802 11g 54 Mbit s Constant receiving 98 100 mA 802 11n MCS7 Constant receiving 98 100 mA 3 4 Working Current Table 3 4 WB2L working current Working Mode Working Status Ta 25...

Page 10: ...ssion rate 802 11b 1 2 5 5 or 11 Mbit s 802 11g 6 9 12 18 24 36 48 or 54 Mbit s 802 11n HT20 MCS0 to MCS7 802 11n HT40 MCS0 to MCS7 Antenna type Onboard PCB antenna with a gain of 1 dBi 4 2 TX Perform...

Page 11: ...or external antenna with an I PEX connector 5 2 Antenna Interference Reduction To ensure optimal Wi Fi performance when the Wi Fi module uses an onboard PCB antenna it is recommended that the antenna...

Page 12: ...WB2L Datasheet Hangzhou Tuya Information Technology Co Ltd V1 0 0 12 Figure 6 1 WB2L mechanical dimensions Figure 6 2 Side view...

Page 13: ...Ltd V1 0 0 13 6 2 Recommended PCB Layout Figure 6 3 WB2L pins WB2L can be mounted onto a PCB by using an SMT placement machine or connected to the PCB through a pin header Figure 6 4 shows the pin he...

Page 14: ...ot vacuum pack the module again Bake the module before mounting it onto the PCB 1 SMT placement equipment i Reflow soldering machine ii Automated optical inspection AOI equipment iii Nozzle with a 6 m...

Page 15: ...Baking temperature 125 5 C 2 Alarm temperature 130 C 3 SMT placement ready temperature after natural cooling 36 C 4 Number of drying times 1 5 Rebaking condition The module is not soldered within 12...

Page 16: ...nology Co Ltd V1 0 0 16 batches for visual inspection and AOI 6 4 Recommended Oven Temperature Curve 1 Perform SMT placement based on the following reflow oven temperature curve The highest temperatur...

Page 17: ...WB2L Datasheet Hangzhou Tuya Information Technology Co Ltd V1 0 0 17 6 5 Storage Conditions...

Page 18: ...on Technology Co Ltd V1 0 0 18 7 MOQ and Packing Information MOQ and Packing Information Product Model MOQ Packing Method Number of Modules in Each Reel Pack Number of Reel Packs in Each Box WB2L 4000...

Page 19: ...not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encou...

Page 20: ...antenna must be installed such that 20cm is maintained between the antenna and users and 2 The transmitter module may not be co located with any other transmitter or antenna As long as 2 conditions a...

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