Wi-Fi module introduction--TYLC2

Product Overview

​ TYLC2 is a low-power, embedded Wi-Fi module developed by Hangzhou Tuya Information Technology Co., Ltd. specifically designed for use in smart lighting applications. The module consists of the highly integrated Wi-Fi SoC ESP8266EX, an external flash memory, and a DC/DC regulator circuit. It comes with a built-in Wi-Fi network protocol, and a large number of library functions. TYLC2 also contains a low-power 32-bit CPU, 1Mbyte flash, 36K SRAM, and a large variety of peripheral resources.

​ TYLC2 is an RTOS platform that gathers all Wi-Fi MAC and TCP/IP libraries into one place. It enables users to build on the product and develop embedded Wi-Fi products that suit their individual needs.

The ESP8266 diagram is as shown in Figure 1:

​ Figure1 ESP8266 Diagram

Features

• Built-in low-power 32-bit CPU that doubles as an application processor

​ Supports CPU frequencies of 80MHz and 160MHz

• Operating voltage: 5-38V (31-38v by default)
• Peripherals: 4×GPIOs (including 2×I2Cs)
• Wi-Fi connectivity

​ 802.11 b/g/n

​ Channels 1-14@2.4GHz

​ Supports WPA/WPA2

​ +20dBm output in 802.11b mode

​ Supports STA/AP/STA+AP modes

​ Supports SmartConfig (for both Android and IOS devices)

​ Operating temperature: -20℃ to 70℃ (commercial); -40℃ to 85℃ (industrial)

Primary fields of application

• Industrial wireless control

• Smart lighting

Module Interfaces

Package dimensions

​ TYLC2 has 2 rows of pins (2×4) with 2.0mm pitch.

​ TYLC2 dimensions: 26 mm (W) × 20 mm (L) × 3.5 mm (H); package as shown in Figure 2:

​ Figure2 TYLC2 Dimensional Drawing

Pin definition

Conventional pins are defined as shown in Table 1:

​ Table 1 TYLC2 Pinout

Notes: P indicates the power pin; I/O indicates the input/output pin

Electrical Parameters

Absolute electrical parameters

​ Table 2 Absolute Parameters

Parameters	Description	Min	Max	Unit
Ts	Storage temperature	-40	85	℃
VIN	Input voltage	-0.3	40	V
Electrostatic discharge voltage (human-body model)	TAMB-25℃	-	2	KV
Electrostatic discharge voltage (machine model)	TAMB-25℃	-	0.5	KV

Operating conditions

Table 3 Normal operating conditions

Parameters	Description	Min	Typ	Max	Unit
Ta	WorkingTemp(Commercial)	-20	-	70	℃
Ta	WorkingTemp(Industrial)	-40		85	℃
VIN	Operating voltage	5*	-	38	V
VIL	IO low input	-0.3	-	0.8	V
VIH	IO high input	2.47	-	3.6	V
VOL	IO low output	-	-	0.34	V
VOH	IO high output	2.64	-	3.4	V
Imax	IO drive current	-	-	12	mA
Cpad	Input pin capacitance	-	2		pF

*：The minimum factory default operating voltage is set to 31V.

Please specify a different value in the order if otherwise necessary

Wi-Fi TX power consumption

Table 4 TX continuous power @3.3V

Symbol	Mode	Rate	Typ	Unit
IRF	11b	11Mbps	260	mA
IRF	11g	54Mbps	100	mA
IRF	11n	MCS7	100	mA

Wi-Fi RX power consumption

Table 5 RX continuous power @3.3V

Symbol	Mode	Rate	Typ	Unit
IRF	11b	11Mbps	70	mA
IRF	11g	54Mbps	70	mA
IRF	11n	MCS7	70	mA

Power consumption in operating mode

Table 6 Operating current @3.3V

Operation Mode	Operating condition, TA=25℃	Typ	Peak*	Unit
Quick configuration	Fast blinking light during quick configuration	100	151	mA
Hotspot configuration	Slow blinking light during hotspot configuration	105	451	mA
Network connection idle	Connected to a network	58.5	411	mA
Network connection active	Connected to a network	100	411	mA
Disconnected	Not connected to any network	156	430	mA

Notes: The peak period is Approx. 5us.

​ The abovementioned parameters are the measurement results for DC/DC output voltage 3.3 V. The DC/DC converter has an efficiency of Approx. 90%.

​ The parameters above may vary according to firmware.

RF Characteristics

Basic RF characteristics

​ Table 7 Basic RF characteristics

Parameter	Description
Operating frequency	2.400~2.500GHz
Wi-Fi standard	IEEE 802.11b/g/n (Channels 1-14)
Data transfer rate	11b:1,2,5.5, 11 (Mbps) 11g:6,9,12,18,24,36,48,54(Mbps) 11n:HT20 MCS0~7
Antenna type	PCB onboard antenna

Wi-Fi output power

​ Table 8 TX Continuous Power During Transmission

Parameter		Min	Typ	Max	Unit
RF average output power, 802.11b CCK Mode	11M	-	17	-	dBm
RF average output power, 802.11g OFDM Mode	54M	-	15	-	dBm
RF average output power, 802.11n OFDM Mode	MCS7	-	13	-	dBm
Frequency error		-20	-	20	ppm

Wi-Fi RX sensitivity

​ Table 9 RX Sensitivity

Parameter		Min	Typ	Max	Unit
PER<8%, RX sensitivity, 802.11b CCK Mode	11M	-	-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 Signal

Antenna interference reduction

​ To optimize Wi-Fi performance of the Wi-Fi module in combination with the PCB onboard antenna, it is recommended to keep the antenna at least 15mm away from other metal components.

Manufacturing Work Instructions

Manufacturing work instructions

The storage conditions for the module after it is shipped are as follows:

1. The moisture resistant bag must be stored at a temperature below 30℃, and under a relative humidity below 85%.
2. The shelf life of dry, packed products is six months following the package date.

Important information

1. All line workers must wear antistatic wrist straps throughout the entire production process.
2. It is strictly prohibited to allow a module to come into contact with water or other contaminants during operations.

Recommended furnace temperature curve