Tuya BT2L-A Datasheet Device Access > Module > Bluetooth Module Release Date: 2020-02-17 View Online Version
Tuya BT2L-A Datasheet Contents Contents 1 Product Overview.............................................................................................................................................. 1 1.1 Features.................................................................................................................................................. 1 1.2 Application Scenarios.....................................................................................................................
Tuya BT2L-A Datasheet 1 Product Overview 1 Product Overview BT2L-A is an embedded Bluetooth Low Energy (BLE) module that Tuya has developed. It consists of a highly integrated Bluetooth chip (TLSR8250F512AT32) and several peripheral circuits, with an embedded Bluetooth network protocol stack and robust library functions. BT2L-A also contains a lowpower 32-bit microcontroller unit (MCU), BLE 5.0 or 2.4 GHz radio, 4 MB flash memory, 48 KB static random-access memory (SRAM), and five multiplexing I/O pins.
Tuya BT2L-A Datasheet 2 Change History 2 Change History Date Change Description Version After Change 2019-12-19 This is the first release. 1.0.0 2020-02-17 Changed the 2 Mbit/s RF data rate to 1.0.1 1 Mbit/s.
Tuya BT2L-A Datasheet 3 Module Interfaces 3 Module Interfaces 3.1 Dimensions and Footprint BT2L-A has a row of pins with a 2 mm pin spacing. The BT2L-A dimensions (H x W x D) are 2.8±0.15 mm x 15±0.35 mm x 17.4±0.35 mm. The PCB thickness is 0.8±0.1 mm. Figure 3-1 and Figure 3-2 show the BT2L-A front and rear views. Figure 3-1 BT2L-A front view Figure 3-2 BT2L-A rear view 3.2 Pin Definition Table 3-1 BT2L-A interface pins Pin No.
Tuya BT2L-A Datasheet 3 Module Interfaces Pin No.
Tuya BT2L-A Datasheet 4 Electrical Parameters 4 Electrical Parameters 4.1 Absolute Electrical Parameters Parameter Description Minimum Value Maximum Value Unit Ts Storage temperature –65 150 °C VCC Power supply voltage –0.3 3.9 V Static electricity voltage (human body model) Tamb = 25°C N/A 2 kV Static electricity voltage (machine model) Tamb = 25°C N/A 0.5 kV 4.
Tuya BT2L-A Datasheet 5 RF Features 5 RF Features 5.1 Basic RF Features Parameter Description Working frequency 2.4 GHz ISM band Wireless standard BLE 4.2 or 5.0 Data transmission rate 1 Mbit/s Antenna type Onboard PCB antenna 5.2 RF TX Power Parameter Minimum Value Typical Value Maximum Value Unit Average RF output power –21 10 11.5 dBm 20 dB modulation signal bandwidth (1 Mbit/s) N/A 2500 N/A kHz 5.
Tuya BT2L-A Datasheet 6 Antenna Information 6 Antenna Information 6.1 Antenna Type BT2L-A uses an onboard PCB antenna. 6.2 Antenna Interference Reduction To ensure optimal RF performance, it is recommended that the antenna be at least 15 mm away from other metal parts. If metal materials are wrapped around the antenna, the wireless signals will be reduced greatly, deteriorating the RF performance. During module design, sufficient space needs to be reserved for the antenna.
Tuya BT2L-A Datasheet 7 Packaging Information and Production Instructions 7 Packaging Information and Production Instructions 7.1 Mechanical Dimensions and Rear Solder Pad Dimensions Figure 7-1 BT2L-A mechanical dimensions and rear solder pad dimensions Note: The default dimensional tolerance is ±0.35 mm, and the tolerance for some measurements is ±0.1 mm. If a customer has other requirements, clearly specify them in the datasheet after communication. 7.2 Production Instructions 1.
Tuya BT2L-A Datasheet 7 Packaging Information and Production Instructions Cabinet oven Anti-static heat-resistant trays Anti-static heat-resistant gloves 2. Storage conditions for a delivered module are as follows: The moisture-proof bag is placed in an 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 six months from the date when the product is packaged and sealed.
Tuya BT2L-A Datasheet 7 Packaging Information and Production Instructions 7.3 Recommended Oven Temperature Curve Perform SMT placement based on the following reflow oven temperature curve. The highest temperature is 245°C. Based on the IPC/JEDEC standard, perform reflow soldering on a module at most twice.
Tuya BT2L-A Datasheet 7 Packaging Information and Production Instructions 7.
Tuya BT2L-A Datasheet 8 MOQ and Packing Information 8 MOQ and Packing Information Product Model MOQ Packing Method Number of Modules Number of Reel in Each Reel Pack Packs in Each Box BT2L-A N/A Carrier tape and reel packing N/A 12/14 4
Tuya BT2L-A Datasheet 9 Appendix: Statement 9 Appendix: Statement 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. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Tuya BT2L-A Datasheet 9 Appendix: Statement be installed such that 20 cm is maintained between the antenna and users, and 2) The transmitter module may not be co-located with any other transmitter or antenna. As long as 2 conditions above are met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed.
