TYJW2S-3.3V Module Datasheet

TYJW2S-3.3V is a Wi-Fi module with 3.3V TTL UART series port interface designed by Tuya. The module consists of a Tuya Wi-Fi module and some power level converter circuit, which have been programmed with Wi-Fi network protocol and plenty of software examples.

Overview

TYJW2S-3.3V is an RTOS platform, embedded with all the Wi-Fi MAC and TCP/IP protocol function examples, users can customize their Wi-Fi product by using these software examples.

Feature

• Integrated low power consumption 32-bit CPU, also known as an application processor, the basic frequency can support 80MHz and 160MHz
• Supply voltage range: 3.0V ~ 3.6V
• Peripherals: 1*UART (TTL)
• Wi-Fi connectivity:
  • 802.11 b/g/n
  • Channel 1-14@2.4GHz
  • Support WPA/WPA2
  • +20dBm output power in 802.11b mode
  • Support STA/AP/STA+AP operation mode
  • Support SmartConfig function for both Android and IOS devices
  • On-board PCB antenna or IPEX connect for external antenna
  • Operating temperature range: -20℃ to 85℃

application fields

• Intelligent Building
• Intelligent home, Intelligent household applications
• Health care
• Industrial wireless control
• Portable devices

Dimensions and footprint

Dimensions

TYJW2S-3.3V has an interface of the PH-4AW connection port. The distance between each Pin is 2mm. The interface is a PH2.04-Y connector.

Size of TYJW2S-3.3V: 42.6mm(W)*31mm(L)*9.1mm(H)

Front view Back view

Pin Definition

Table 1 shows the general pin attributes of TYJW2S-3.3V

Table 1 The typical pin definition of TYJW2S-3.3V

PIN NO.	NAME	TYPE	DESCRIPTION
1	RX	I/O	RX port, input 3.3V TTL
2	TX	I/O	TX port, output 3.3V TTL
3	GND	P	Ground
4	VCC	P	Supply Voltage 3.3V

Note: P: Power supply pins; I/O: Digital input or output pins;

### Test Point Definition

The test point pin definition is shown in table 2:

Table 2 The typical pin definition of TYJW2S-3.3V

PIN NO.	NAME	TYPE	DESCRIPTION
5	3.3V	P	Internal 3.3V voltage pin
6	GND	P	Ground
7	BOOT	I/O	IO0 pin, firmware burning selection pin
8	TXD1	I/O	Information print pin
9	RXD0	I/O	Firmware burning pin
10	TXD0	I/O	Firmware burning pin
11	RST	I/O	Reset pin

Note: P: Power supply pins; I/O: Digital input or output pins

If IO0 is unconnected, a module in normal working mode; If IO0 is in negative level, the module is in firmware burning mode.

RST is used for module hardware reset, can not clear Wi-Fi connection information.

This test point is not recommended for regular usage.

Electrical characteristics

Absolute maximum ratings

Table 3 Absolute Maximum Ratings

PARAMETERS	DESCRIPTION	MIN	MAX	UNIT
Ts	Storage temperature	-20	85	℃
VCC (TYJW2S-3.3V)	Supply voltage	-0.3	3.6	V
Static electricity voltage (human model)	TAMB-25℃	-	2	KV
Static electricity voltage (machine model)	TAMB-25℃	-	0.5	KV

Electrical conditions

Table 4 Electrical Conditions

PARAMETERS	DESCRIPTION	MIN	TYPICAL	MAX	UNIT
Ta	Working temperature	-20	-	85	℃
VCC(TYJW2S-3.3V)	Working voltage	3.0	3.3	3.6	V
VIL	IO negative level input	-0.3	-	VCC*0.25	V
VIH	IO positive level input	VCC*0.75	-	VCC	V
VOL	IO negative level output	-	-	VCC*0.1	V
VoH	IO positive level output	VCC*0.8	-	VCC	V
Imax	IO drive current	-	-	5	mA

Wi-Fi transmitting current consumptions

Table 5 Wi-Fi TX current consumption

PARAMETERS	MODE	RATE	TYPICAL	UNIT
IRF	11b	11Mbps	260	mA
IRF	11g	54Mbps	100	mA
IRF	11n	MCS7	100	mA

Wi-Fi Receiving Current Consumptions

Table 6 Wi-Fi RX current consumption

PARAMETERS	MODE	RATE	TYPICAL	UNIT
IRF	11b	11Mbps	70	mA
IRF	11g	54Mbps	70	mA
IRF	11n	MCS7	70	mA

Working mode current consumptions

Table 7 MCU working current consumption

WORK MODE	AT TA=25℃	TYPICAL	MAX	UNIT
EZ Mode	Module is under EZ paring mode, Wi-Fi indicator light flashes quickly	90	455	mA
AP Mode	Module is under AP paring mode, Wi-Fi indicator light flashes slowly	101	451	mA
Operation Mode	Module is connected, Wi-Fi indicator light is on	58.5	411	mA
Disconnection Mode	Modules is disconnected, Wi-Fi indicator light is off	156	430	mA

WLAN radio specification

Basic radio frequency characteristics

Table 8 Basic Radio frequency characteristic

PARAMETERS	DESCRIPTION
Frequency band	2.400GHz to 2.4835GHz
Wi-Fi standard	IEEE 802.11n/g/b (Terminal 1-14)
Data transmitting rate	11b:1,2,5.5,11(Mbps), 11g:6,9,12,18,24,36,48,54(Mbps), 11n:HT20,MCS0~7
Antenna type	On-board PCB Antenna (Default), UF.L RF external antenna (optional)

Wi-Fi transmitting power

Table 9 Wi-Fi transmitting power

PARAMETERS		MIN	TYPICAL	MAX	UNIT
RF average output power, 802.11b CCK Mode	1M	-	17	-	dBm
RF average output power, 802.11g OFDM Mode	54M	-	15	-	dBm
RF average output power, 802.11n OFDM Mode	MCS7	-	13	-	dBm
The Frequency error		-10	-	10	ppm

Wi-Fi receiving sensitivity

Table 10 Wi-Fi Receiving sensitivity

PARAMETERS		MIN	TYPICAL	MAX	UNIT
PER<8%, Receiving sensitivity, 802.11b CCK Mode	1M	-	-91	-	dBm
PER<10%, Receiving sensitivity, 802.11g OFDM Mode	54M	-	-75	-	dBm
PER<10%, Receiving sensitivity, 802.11n OFDM Mode	MCS7	-	-72	-	dBm

Antenna

Antenna type

Antenna can be connected using an onboard PCB antenna or an external antenna; the default way is using the Onboard PCB antenna. If an external antenna needed, please contact your Tuya account manager.

Reduce antenna interference

While using the onboard PCB antenna, in order to have the best Wi-Fi performance, it is recommended to keep a minimum 15mm distance between the antenna part and the other metal pieces.

U.FL RF connector

The following figure shows the physical parameter of the U.FL RF connector.

Packaging information and production guide

Mechanical dimensions

Top view of the module:

Note: the tolerance of PCB outline border is ±0.15mm, the tolerance of PCB thickness is ±0.1mm

Production guide

The storage for the delivered module should meet the following condition:

1. The anti-moisture bag should be kept in an environment with temperature < 30℃ and humidity < 85% RH.
2. The expiration date is 6 months since the dry packaging products were sealed.

Cautions:

1. All the operators should wear electrostatic ring in the whole process of production.
2. While operating, water and dirt should not have any contact with the modules.

Wire parameter

Shell parameter