TYJW-JHS-WR1 Datasheet

Developed by Tuya, TYJW-JHS-WR1 is a Wi-Fi module that is suitable for serial communication in which the level is changed from 5V TTL to 3.3V TTL. It consists of a highly integrated wireless RF chip (RTL 8710BN), an extended chip, and a DC-DC chip. Besides, it is built-in with the Wi-Fi network protocol stack and rich library functions. It further contains a low-power ARM CM4FCPU, a 2-MB flash memory, and a 256-KB SRAM。

Product overview

TYJW-JHS-WR1 is an RTOS platform that integrates all function libraries of the Wi-Fi Mac and TCP/IP protocols. Based on the serial communication manner, you can develop the embedded Wi-Fi products as required.

Features

• Embedded with a low-power CPU, which can also function as an application processor
• Maximum clock rate: 125 MHz
• Operating voltage: 4.5 to 5.5V
• Peripherals: 1 UART
• Wi-Fi connectivity
  • 802.11 b/g/n20/n40
  • Channels 1 to 14@2.4GHz
  • Support WPA, WPA2, WEP, and TKIP security modes
  • Up to +18 dBm output power in 802.11b mode
  • Support SmartConfig and AP for Android and IOS devices
  • PCB antenna
  • Operating temperature: -20℃ to 85℃

Applications

• Intelligent building
• Smart household and home appliances
• Smart socket and light
• Industrial wireless control

Change history

Update date	Updated content	Version after update
January 9, 2021	First release	V2.0.0

Module interfaces

Dimensions and footprint

The dimensions of TYJW-JHS-WR1 are:

• Length: 35.5 mm ± 0.35 mm

• Width: 21.6 mm ± 0.35 mm

• Height: 5.3 mm ± 0.15 mm

  

Pin definition

Pin number	Symbol	I/O type	Function
1	5V	P	Power supply pin (5V)
2	GND	P	Power supply reference ground
3	RX	I	The receiving interface of the module, which inputs the TTL level signal in the voltage of 5V
4	TX	O	The transmitting interface of the module, which outputs the TTL level signal in the voltage of 5V

Note: P indicates a power supply pin and I/O indicates an input/output pin.

Electrical parameters

Absolute electrical parameters

Parameter	Description	Minimum value	Maximum value	Unit
Ts	Storage temperature	-40	125	℃
VCC	Supply voltage	-	5.5	V
ESD voltage (human body model)	TAMB-25℃	-	2	KV
ESD voltage (machine model)	TAMB-25℃	-	0.5	KV

Normal working conditions

Parameter	Description	Minimum value	Typical value	Maximum value	Unit
Ta	Operating temperature	-20	-	85	℃
VCC	Supply voltage	4.5	5.0	5.5	V
VIL	Voltage Input Low	-0.3	-	VCC*0.25	V
VIH	Voltage Input High	VCC*0.75	-	VCC	V
VOL	Voltage Output Low	-	-	VCC*0.1	V
VOH	Voltage Output High	VCC*0.8	-	VCC	V
Imax	I/O drive current	-	-	12	mA

TX power consumption

Operating status	Mode	Rate	Transmit power	Peak value (Typical Value)	Unit
Transmit	11b	11Mbps	+17dBm	270	mA
Transmit	11g	54Mbps	+14.5dBm	255	mA
Transmit	11n BW20	MCS7	+13.5dBm	235	mA
Transmit	11n BW40	MCS7	+13.5dBm	235	mA

RX power consumption

Operating status	Mode	Rate	Receive	Peak value (Typical value)	Unit
Receive	CPU Sleep	11Mbps	Constantly receive	90	mA
Receive	CPU Active	54Mbps	Constantly receive	120	mA

Power consumption in operating mode

Operating mode	Operating status, Ta = 25°C	Typical value	Peak value	Unit
Quick connection state	The module is in fast network connection state	115	308	mA
Hotspot	The module is in hotspot network connection state	130	335	mA
Network connection state	The module is in the idle state of network connection	70	292	mA
Network connection state	The module is in the busy state of network connection	120	330	mA

Note: The above parameters vary with firmware functions.

RF parameters

Basic RF features

Parameter	Description
Working frequency	2.412 to 2.4835 GHz
Wi-Fi standard	IEEE 802.11 b/g/n (channels 1 to 14)
Data transmission rate	11b: 1, 2, 5.5, 11 (Mbps) 11g: 6, 9, 12, 18, 24, 36, 48, 54 (Mbps) 11n: HT20 MCS 0 to 7 11n: HT40 MCS 0 to 7
Antenna type	PCB antenna

TX performance

TX performance

Parameter	Minimum value	Typical value	Maximum value	Unit
Average output power, 802.11b CCK Mode 1M	-	17	-	dBm
Average output power, 802.11g OFDM Mode 54M	-	14.5	-	dBm
Average output power, 802.11n OFDM Mode MCS7	-	13.5	-	dBm
Frequency error	-20	-	20	ppm

RX performance

Parameter	Minimum value	Typical value	Maximum value	Unit
PER<8%, RX sensitivity, 802.11b DSSS Mode 1M	-	-91	-	dBm
PER<10%, RX sensitivity, 802.11g OFDM Mode 54M	-	-75	-	dBm
PER<10%, RX sensitivity, 802.11n OFDM Mode MCS7	-	-72	-	dBm

Antenna information

Antenna type

TYJW-JHS-WR1 uses the PCB antenna.

Antenna interference reduction

To ensure optimal Wi-Fi performance, it is recommended that the antenna be at least 15 mm away from other metal parts.

To prevent adverse impact on the antenna radiation performance, avoid copper or traces within the antenna area on the PCB.

Specifications of antenna connector

There is no antenna connector for this module currently.

Specifications of electrical interface & connector

The electrical interface of TYJW-JHS-WR1 is the ZH1.5-4AW connector with a pin spacing of 1.5 mm. The corresponding plug interface is the ZH-4Y connector.

The connection wire of the module is ZH-4P 1.25 TO TJC25020-4P, with a length of 600 mm. For more details, refer to the following figure. If you want to change the wire, contact Tuya Smart.

Packaging information and production instructions

Mechanical dimensions

Production instructions

Storage conditions for a delivered module:

• The moisture-proof bag must be placed in the environment where the temperature is below 30°C and the relative humidity is lower than 70%.
• The shelf life of a dry-packaged product is 6 months from the date when the product is packaged and sealed.

Caution:

• In the production process, all operators must wear electrostatic rings.
• During operation, strictly prevent the module from getting wet or dirty.

Recommended oven temperature curve

Perform placement with the SMT based on the following reflow oven temperature curve. The highest temperature is 245°C. The reflow oven temperature curve is as below:

Refer to the IPC/JEDEC standards:

• Peak temperature: <245℃

• The number of times: 2 times

  

Storage conditions

MOQ and packaging information

Product model	MOQ (pcs)	Shipping packaging method	Modules per carton	Reels per carton
TYJW-JHS-WR1	400	Bubble bags	200	2