Wi-Fi module introduction--TYLC2

Last Updated on : 2020-11-27 08:52:12download

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

Wi-Fi module introduction--TYLC2


  • 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

Wi-Fi module introduction--TYLC2

Pin definition

Conventional pins are defined as shown in Table 1:

​ Table 1 TYLC2 Pinout

Wi-Fi module introduction--TYLC2

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

Electrical Parameters

Absolute electrical parameters

​ Table 2 Absolute Parameters

TsStorage temperature-4085
VINInput voltage-0.340V
Electrostatic discharge voltage (human-body model)TAMB-25℃-2KV
Electrostatic discharge voltage (machine model)TAMB-25℃-0.5KV

Operating conditions

Table 3 Normal operating conditions

TaWorkingTemp(Industrial)-40 85
VINOperating voltage5*-38V
VILIO low input-0.3-0.8V
VIHIO high input2.47-3.6V
VOLIO low output--0.34V
VOHIO high output2.64-3.4V
ImaxIO drive current--12mA
CpadInput 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


Wi-Fi RX power consumption

Table 5 RX continuous power @3.3V


Power consumption in operating mode

Table 6 Operating current @3.3V

Operation ModeOperating condition, TA=25TypPeak*Unit
Quick configurationFast blinking light during quick configuration100151mA
Hotspot configurationSlow blinking light during hotspot configuration105451mA
Network connection idleConnected to a network58.5411mA
Network connection activeConnected to a network100411mA
DisconnectedNot connected to any network156430mA

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

Operating frequency2.400~2.500GHz
Wi-Fi standardIEEE 802.11b/g/n (Channels 1-14)
Data transfer rate11b:1,2,5.5, 11 (Mbps)
11n:HT20 MCS0~7
Antenna typePCB onboard antenna

Wi-Fi output power

​ Table 8 TX Continuous Power During Transmission

Parameter MinTypMaxUnit
RF average output power, 802.11b CCK Mode11M-17-dBm
RF average output power, 802.11g OFDM Mode54M-15-dBm
RF average output power, 802.11n OFDM ModeMCS7-13-dBm
Frequency error -20-20ppm

Wi-Fi RX sensitivity

​ Table 9 RX Sensitivity

Parameter MinTypMaxUnit
PER<8%, RX sensitivity, 802.11b CCK Mode11M--91-dBm
PER<10%, RX sensitivity, 802.11g OFDM Mode54M--75-dBm
PER<10%, RX sensitivity, 802.11n OFDM ModeMCS7--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

Wi-Fi module introduction--TYLC2