HJ8258 BLE Module datasheet Latest version|V1.
About Datasheet The specification of HJ8258 module provides an introduction of the basic functions of WLT8258 module, including the electrical specification, RF performance, pin size, and design of reference schematic diagram, etc. Readers can refer to this document to have a detailed understanding of the overall functional parameters of the module application, Revision History **Version information management** 版本号 time *Update record* V1.0 2020.09.
8.Regulatory Module Integration Instructions 1.Summary HJ8258 is a Bluetooth low energy transmission module. This module is mainly used in data communication of Internet of things, and data acquisition and control are realized through rich peripheral interface. In the transmission mode, the user's product can quickly complete the docking with the module, and communicate with the mobile device to achieve intelligent control and management of the product. HJ8258 is based on the Bluetooth low energy 5.
HJ8258 module only needs to connect VCC, GND, TX and RX to complete data transmission function. It also supports the use of the AT instruction to modify the default name and other related parameters (see the HJ8258 user manual for details). 1.2.
2.2Electrical specifications Table2-1：Maximum rated parameter Item Symbol Min Max Unit The power supply voltage VDD -0.3 3.6 V Pin input voltage Vin -0.3 VDD+0.3 V Pin output voltage Vout 0 VDD V Storage temperature Tstr -65 150 ºC Welding temperature Tsld - 260 ºC Note:： The listed electrical characteristics are target specifications for reference only. Some data may be updated based on actual test results. 2. The voltage value shown is based on GND in the module.
Table2-4： Broadcast Current (VDD= 3.3v, T=25℃,2.5dBm) Broadcast Interval 100ms 200ms 300ms 1s 2s Unit 1 Channel 147 74 31 16 9 uA 3 Channel 266 98 54 28 18 uA Table2-5： Connecting current (VDD= 3.3v, T=25℃,2.5dBm) Interval 20ms 50ms 100ms 200s 500s Unit Current 643 263 134 68 43 uA Table2-6：Pin input/output characteristics(VDD=3.3V, T=25℃) Item Sym. Min Typ. Max Unit Input high level VIH 0.7VDD - VDD V Input low level VIL VSS - 0.
3.The Bluetooth specification Table3-1： BLE 1Mbps RF_Rx performance(±250kHz deviation) Item Sym. Min Typ.
Table3-3：BLE 2Mbps RF_Rx performance(±500kHz deviation) Item Sym. Min. Typ. Max.
Table3-5：BLE 500kbps RF_Rx performance(±250kHz deviation) Item Sym. Min. Typ. Max.
Table3-7：BLE 125kbps RF_Rx performance(±250kHz deviation) Item Sym. Min. Typ. Max.
4.Pin description 4.1.Pin assignment Figure 4-1：module pin diagram Note: figure 4-1 pin functions can be redefined by pin reuse 4.2.4.2 UART interface The module supports UART (universal asynchronous transceiver) and realizes full duplex transmission and reception through TX and RX interfaces. Support hardware flow control RTS and CTS.
4.3.
5.Reference design 5.1.
Length (X) 11.50± 0.3mm Width (Y) 16.40± 0.3 mm Length (X) 11.20 mm± 0.15 mm Width (Y) 4.34 mm± 0.15 mm PCB Thickness Height (H) 0.80 ± 0.05 mm Total thickness of module (including shielding case) Height (H) 2.50 ± 0.1 mm Total thickness of module (including shielding case) Height (H) 1.67 ± 0.05 mm Module outline dimensions (including process edges) Antenna Position Dimension Table5-1： Module design dimensions 5.2.Matters needing attention Bluetooth working at 2.
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7. Packing size The HJ8258 module adopts taping package by default.
8.Regulatory Instructions Module Integration List of applicable FCC rules This device complies with part 15.247 of the FCC Rules. Limited module procedures Not applicable Summarize the specific operational use conditions This module can be applied in remote control toys, sports and fitness sensors , health sensors, mobile accessories as well as smart home. The input voltage to the module should be nominally 1.8-3.6 V DC ， typical value 3.
a) The modular transmitter has been fully tested by the module grantee on the required number of channels， modulation types， and modes， it should not be necessary for the host installer to re-test all the available transmitter modes or settings. It is recommended that the host product manufacturer ， installing the modular transmitter ， perform some investigative measurements to confirm that the resulting composite system does not exceed the spurious emissions limits or band edge limits (e.g.
activity on the communication BUS (i.e. ， PCIe ， SDIO ， USB) to ensure the unintentional radiator circuitry is enabled. Testing laboratories may need to add attenuation or filters depending on the signal strength of any active beacons (if applicable) from the enabled radio(s). See ANSI C63.4， ANSI C63.10 and ANSI C63.26 for further general testing details.
