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TYWRD3S Datasheet

Hangzhou Tuya Information Technology Co., Ltd. 1 V2.0.2

1. Product Overview

TYWRD3S is a low-power built-in Wi-Fi module that Hangzhou Tuya Inc has developed. It

consists of a highly integrated RF chip (RDA5981B) and several peripheral components, with a

built-in Wi-Fi network protocol stack and robust library functions. TYWRD3S is embedded with a

low-power ARM-CM4 MCU, 2 MB flash memory, 448 KB SRAM, and rich peripheral resources.

TYWRD3S is an RTOS platform that integrates all the function libraries of the Wi-Fi MAC and

TCP/IP protocols. You can develop built-in Wi-Fi products as required.

1.1 Features

 Built-in low-power CPU, which can also be used as an application processor

⚫ Dominant frequency: up to 160 MHz

 Working voltage: 3.0 V to 3.6 V

 Peripherals: nine GPIOs, one UART, and one ADC

 Wi-Fi connectivity

⚫ 802.11b/g/n/HT20

⚫ 2.4GHz WIFI

⚫ WPA, WPA2, WEP, and TKIP security modes

⚫ Up to +20 dBm EIRP output power

⚫ STA, AP, and STA+AP working modes

⚫ Smart and AP network configuration modes (for Android and iOS devices)

Tuya TYWRD3S Wi-Fi Module

Version: 2.0.2

Date: 2019-11-5

No.: 0000000004

Product

Manual

Global Intelligent Platform

Summary of content (20 pages)

PAGE 1
Global Intelligent Platform TYWRD3S Datasheet Tuya TYWRD3S Wi-Fi Module Product Manual Version: 2.0.2 Date: 2019-11-5 No.: 0000000004 1. Product Overview TYWRD3S is a low-power built-in Wi-Fi module that Hangzhou Tuya Inc has developed. It consists of a highly integrated RF chip (RDA5981B) and several peripheral components, with a built-in Wi-Fi network protocol stack and robust library functions.
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TYWRD3S Datasheet ⚫ Onboard PCB antenna ⚫ Working temperature: –20°C to 85C 1.2 Applications Intelligent building Smart household and home appliances Smart socket and light Industrial wireless control Baby monitor Network camera Intelligent bus Change History No. Date Change Description Version After Change 1 2019-07-26 This is the first release. 2.0.0 2 2019-07-26 Modify the pin number. 2.0.1 3 2019-07-26 Delete the Block diagram 2.0.2 Hangzhou Tuya Information Technology Co.
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TYWRD3S Datasheet Contents 1. Product Overview ............................................................................................................ 1 1.1 Features.................................................................................................................. 1 1.2 Applications ............................................................................................................ 2 2 Module Interfaces ............................................................................
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TYWRD3S Datasheet 6.4 Recommended Oven Temperature Curve ........................................................... 15 6.5 Storage Conditions ............................................................................................... 16 7 MDQ and Packing Information ....................................................................................... 17 8 Appendix: Statement .......................................................................................................
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TYWRD3S Datasheet 2 Module Interfaces 2.1 Dimensions and Footprint TYWRD3S has two rows of pins with the distance of 2 mm between every two pins. TYWRD3S dimensions: 16mm±0.35mm(W)×24±0.35mm(L) ×3.5±0.15mm (H) Figure 1 shows the TYWRD3S dimensions. Figure 1 TYWRD3S front and back views 2.2 Pin Definition Table 1 describes the interface pins. Table 1 TYWRD3S interface pins No.
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TYWRD3S Datasheet 3 NC I 4 GPIO0 I/O Null pin, no internal connection GPIO_0,which is connected to GPIO0 on the IC 5 GPIO23 I/O GPIO_23, a standard PWM interface,which is connected to GPIO23 on the IC 6 GPIO24 I/O GPIO_24, a standard PWM interface,which is connected to GPIO24 on the IC 7 GPIO25 I/O GPIO_25, a standard PWM interface,which is connected to GPIO25 on the IC 8 3.
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TYWRD3S Datasheet Note: P indicates power-supply pins, I/O indicates input and output pins, and AI indicates analog input pins. nRST is only a module hardware reset pin and cannot clear the Wi-Fi network configuration. (1) This pin can only be used as an ADC interface and cannot be used as a common I/O pin. If this pin is not used, it must be disconnected. When this pin is used as the ADC input interface, the input voltage range is 0 V to 2.0 V. (2) The UART pins are user-side serial interfaces. 2.
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TYWRD3S Datasheet Parameter Description VBAT Power supply Minimum Maximum Value Value Unit 3.0 3.6 V Tamb = 25°C N/A 2 kV Tamb = 25°C N/A 0.5 kV voltage Static electricity voltage (human body model) Static electricity voltage (machine model) 3.2 Electrical Conditions Table 4 Normal electrical conditions Parameter Ta Description Working Minimum Typical Maximum Value Value Value Unit –20 N/A 85 °C 3.0 3.3 3.6 V –0.3 N/A VCC x 0.3 V VCC x 0.
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TYWRD3S Datasheet 3.3 Wi-Fi RX Power Consumption Table 6 RX power consumption during constant receiving Symbol Mode Rate Typical Value Unit IRF 802.11b 11 Mbit/s 80 mA IRF 802.11g 54 Mbit/s 80 mA IRF 802.11n MCS7 80 mA 3.4 Power Consumption in Working Mode Table 7 TYWRD3S working current Working Mode Working Status (Ta = 25°C) Average Peak Value Value Unit EZ mode The module is in EZ mode. 70 335 mA AP mode The module is in AP mode.
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TYWRD3S Datasheet Parameter Description Frequency band 2.4GHz Wi-Fi standard IEEE 802.11b/g/n20 802.11b: 1, 2, 5.5, or 11 (Mbit/s) Data transmission rate 802.11g: 6, 9, 12, 18, 24, 36, 48, or 54 (Mbit/s) 802.11n: HT20 MCS0 to MCS7 Antenna type Onboard PCB antenna 4.2 Wi-Fi Output Power Table 9 TX power during constant emission Parameter Minimu Typical Maxim m Value Value um Unit Value Average RF output power, 802.
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TYWRD3S Datasheet Value Value Value 1 Mbit/s N/A –90 N/A dBm PER < 10%, 802.11g OFDM mode 54 Mbit/s N/A –73 N/A dBm PER < 10%, 802.11n OFDM mode MCS7 N/A –70 N/A dBm PER < 8%, 802.11b CCK mode 5 Antenna Information 5.1 Antenna Type TYWRD3S uses the onboard PCB antenna. 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 be at least 15 mm away from other metal parts.
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TYWRD3S Datasheet 6. Packaging Information and Production Instructions 6.1 Mechanical Dimensions Figure 2 TYWRD3S mechanical dimensions Figure 3 Side view Hangzhou Tuya Information Technology Co., Ltd. 12 V2.0.
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TYWRD3S Datasheet 6.2 Recommended PCB Encapsulation Figure 4 TYWRD3S schematic diagram and pin connection Figure 5 TYWRD3S encapsulation on the PCB Hangzhou Tuya Information Technology Co., Ltd. 13 V2.0.
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TYWRD3S Datasheet 6.3 Production Instructions 1. Use an SMT placement machine to mount components to the stamp hole module that Tuya produces within 24 hours after the module is unpacked and the firmware is burned. If not, vacuum pack the module again. Bake the module before mounting components to the module. (1) SMT placement equipment i. Reflow soldering machine ii. Automated optical inspection (AOI) equipment iii. Nozzle with a 6 mm to 8 mm diameter (2) Baking equipment 2. i. Cabinet oven ii.
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TYWRD3S Datasheet hours. (2) If the 30% circle is pink, bake the module for 4 consecutive hours. (3) If the 30% and 40% circles are pink, bake the module for 6 consecutive hours. (4) If the 30%, 40%, and 50% circles are pink, bake the module for 12 consecutive hours. 4.
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TYWRD3S Datasheet Figure 6-6 Oven temperature curve 6.5 Storage Conditions Hangzhou Tuya Information Technology Co., Ltd. 16 V2.0.
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TYWRD3S Datasheet 7 MDQ and Packing Information MOQ and packing information Product Model MOQ Packing Number of Modules Number of Reel Method in Each Reel Pack Packs in Each Box Carrier tape TYWRD3S 3600 and reel 900 4 packing Hangzhou Tuya Information Technology Co., Ltd. 17 V2.0.
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TYWRD3S Datasheet 8 Appendix: Statement Federal Communications Commission (FCC) Declaration ofConformity FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. This device complies with Part 15 of the FCC Rules.
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TYWRD3S Datasheet interference by one or more of the following measures: —Reorient or relocate the receiving antenna. —Increase the separation between the equipment and receiver. —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. —Consult the dealer or an experienced radio/TV technician for help. This equipment complies with FCC radiation exposure limits set forth for an uncont rolled environment.
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TYWRD3S Datasheet Declaration of Conformity European notice Hereby, Hangzhou Tuya Information Technology Co., Ltd declares that this WIFI module product is in compliance with essential requirements and other relevant provisions of Directive 2014/53/EC. A copy of the Declaration of conformity can be found at http://www.tuya.com. EN 300 328 V2.1.1 EN 301 489-1 V2.1.1; EN 301 489-17 V3.1.1 EN 62311:2008 EN 60950-1:2006+A11:2009+A1:2010+A12:2011+A2:2013 Hangzhou Tuya Information Technology Co., Ltd. 20 V2.