Datasheet RN4870, RN4871 (Microchip) - 26

RN4870/71 FIGURE 5-2: RN4870 REFERENCE CIRCUIT
1 GND GND 33 Reverse Voltage Protection 2 GND GND 32 Power Input Q1 GND J1 STS2301 VCC GND 3 GND 1 1 3 4 VBAT 2 P2_2 5 P2_2 GND 31 C1 6 U1 VDD_IO P0_2 30 P0_2 7 RN4870 2 VDD_IO P0_7 29 P0_7 Configurable I/O 8 ULPC_O P3_5 28 P3_5 P0_0 P2_4 P2_3 9 P2_3 P3_4 27 P3_4 P0_7 P2_7 GND GND GND 10 BK_O P3_3 26 P3_3 P1_0 P3_1 10uF 6.3V X5R P2_7 11 P2_7/TX_IND P3_2 25 P3_2 P1_1 P3_2 P1_1 12 P1_1 P3_1 24 P3_1 P1_2 P3_3 P1_2 13 P1_2/SCL UART_TX 23 UART_TX P1_3 P3_4 P1_3 14 P1_3/SDA E UART_RX P2_2 P3_5 D UART_RX 22 Configuration Interface TS TS O UART Interface P2_3 P3_6 C R M P2_0 T J2 P0_0/ P1_0 P3_6/ P2_0/ P2_4 NC RS 1 VCC LED Option 2 VCC 15 16 17 18 19 20 21 3 UART_RX LD1 R1 4 UART_TX P0_2 _0 _0 _6 _0 _4 B 5 P0 P1 P3 P2 P2 330 VCC Reset Circuit VCC GND U2 R2 P2_0 MODE MCP112 4.7k 3 VDD VOUT 1 Low Test Mode RST VSS C2 High APP Mode 2 1uF GND GND
FIGURE 5-3: RN4870U REFERENCE CIRCUIT
ANT1 Antenna Matching Reverse Voltage Protection L1 Power Input Q1 1nH J1 STS2301 VCC GND 1 C3 C4 GND BT_RF 30 1 1 3 2 VBAT 2 P2_2 3 P2_2 GND 29 C1 4 U1 VDD_IO P0_2 28 P0_2 5 P0_7 GND 2 GND VDD_IO RN4870U P0_7 27 6 ULPC_O P3_5 26 P3_5 P2_3 7 P2_3 P3_4 25 P3_4 GND GND GND 8 BK_O P3_3 24 P3_3 10uF 6.3V X5R P2_7 9 P2_7/TX_IND P3_2 23 P3_2 Configurable I/O P1_1 10 P1_1 P3_1 22 P3_1 P0_0 P2_4 P1_2 11 P1_2/SCL UART_TX 21 UART_TX P0_7 P2_7 P1_3 12 P1_3/SDA E UART_RX P1_0 P3_1 D UART_RX 20 Configuration Interface TS TS O UART Interface P1_1 P3_2 C R M P2_0 P1_2 P3_3 T J2 P0_0/ P1_0 P3_6/ P2_0/ P2_4 NC RS P1_3 P3_4 1 VCC P2_2 P3_5 2 P2_3 P3_6 13 14 15 16 17 18 19 3 UART_RX 4 UART_TX _0 _0 _6 _0 _4 5 P0 P1 P3 P2 P2 LED Option VCC Reset Circuit VCC VCC LD1 R1 GND U2 R2 P0_2 B MCP112 4.7k 330 3 VDD VOUT 1 RST VSS P2_0 MODE C2 2 1uF Low Test Mode High APP Mode GND GND DS50002489D-page 26  2016-2019 Microchip Technology Inc. Document Outline Bluetooth® Low Energy Module 1.0 Device Overview 1.1 Overview TABLE 1-1: RN4870/71 Family TABLE 1-2: PIN Description FIGURE 1-1: PIN Diagram - RN4870U FIGURE 1-2: PIN Diagram - RN4870 FIGURE 1-3: PIN Diagram - RN4871U FIGURE 1-4: PIN Diagram - RN4871 1.2 Module Configuration TABLE 1-3: Configurable pins and default functions in the RN4870 and RN4871 TABLE 1-4: Configurable functions and descriptions TABLE 1-5: Status Indication PINs TABLE 1-6: Test points on the bottom side FIGURE 1-5: Block Diagram of the RN4870/71 2.0 Specifications TABLE 2-1: General Specifications TABLE 2-2: Electrical characteristics TABLE 2-3: Current consumption TABLE 2-4: Current consumption during application mode 3.0 Interface PINs FIGURE 3-1: Power Scheme FIGURE 3-2: RN4870/71 Coin cell power scheme 4.0 Physical Dimensions And Attributes 4.1 RN4870 Module FIGURE 4-1: RN4870 module dimensions FIGURE 4-2: RN4870 Recommended PCB footprint FIGURE 4-3: Recommended mounting details 4.2 RN4870U Module FIGURE 4-4: RN4870U module dimensions FIGURE 4-5: RN4870U recommended PCB footprint FIGURE 4-6: RN4870U Recommended PCB mounting 4.3 RN4871 Module FIGURE 4-7: RN4871 module dimensions FIGURE 4-8: RN4871 recommended PCB footprint FIGURE 4-9: RN4871 Recommended PCB mounting suggestion 4.4 RN4871U Module FIGURE 4-10: RN4871U module dimensions FIGURE 4-11: RN4871U recommended PCB footprint FIGURE 4-12: RN4871U Recommended PCB mounting FIGURE 4-13: Recommendations for the placement of the module on the Host PCB board 4.5 Soldering Recommendations 5.0 Application Reference Circuits 5.1 External Configuration and Programming 5.2 Reference Circuit FIGURE 5-1: External programming header configurations FIGURE 5-2: RN4870 reference circuit FIGURE 5-3: RN4870U reference circuit FIGURE 5-4: RN4871 Reference circuit FIGURE 5-5: RN4871U reference circuit 5.3 Power Drop Protection FIGURE 5-6: Power Drop protection circuit 6.0 ASCII Command API 7.0 Supported Services 8.0 Antenna Characteristics FIGURE 8-1: RN4870 Antenna performance FIGURE 8-2: RN4871 Antenna performance 9.0 Timing Characteristics FIGURE 9-1: Timing diagram of RN4870/71 UART ready after reset (in test and application mode) FIGURE 9-2: Timing diagram of RN4870/71 UART when powered on (in test and application mode) TABLE 9-1: Error rate for various baud rates on the RN4870/71 10.0 Regulatory Approval 10.1 United States 10.1.1 Labeling and User Information Requirements 10.1.2 RF Exposure 10.1.3 HELPFUL WEB SITES 10.2 Canada 10.2.1 Labeling and User Information Requirements 10.2.2 RF Exposure 10.2.3 Helpful Web Sites 10.3 Europe 10.3.1 LABELING AND USER INFORMATION REQUIREMENTS 10.3.2 CONFORMITY ASSESSMENT 10.3.3 Helpful web sites 10.4 Japan 10.4.1 LABELING AND USER INFORMATION REQUIREMENTS 10.4.2 HELPFUL WEB SITES 10.5 Korea 10.5.1 LABELING AND USER INFORMATION REQUIREMENTS 10.5.2 HELPFUL WEB SITES 10.6 Taiwan 10.6.1 LABELING AND USER INFORMATION REQUIREMENTS 10.6.2 HELPFUL WEB SITES 10.7 China 10.7.1 LABELING AND USER INFORMATION REQUIREMENTS 10.8 Other Regulatory Jurisdictions 10.9 Other Regulatory Information 11.0 Ordering Information TABLE 11-1: Ordering information Appendix A: Revision History The Microchip WebSite Customer Change Notification Service Customer Support AMERICAS Corporate Office Atlanta Austin, TX Boston Chicago Dallas Detroit Houston, TX Indianapolis Los Angeles Raleigh, NC New York, NY San Jose, CA Canada - Toronto ASIA/PACIFIC Australia - Sydney China - Beijing China - Chengdu China - Chongqing China - Dongguan China - Guangzhou China - Hangzhou China - Hong Kong SAR China - Nanjing China - Qingdao China - Shanghai China - Shenyang China - Shenzhen China - Suzhou China - Wuhan China - Xian China - Xiamen China - Zhuhai ASIA/PACIFIC India - Bangalore India - New Delhi India - Pune Japan - Osaka Japan - Tokyo Korea - Daegu Korea - Seoul Malaysia - Kuala Lumpur Malaysia - Penang Philippines - Manila Singapore Taiwan - Hsin Chu Taiwan - Kaohsiung Taiwan - Taipei Thailand - Bangkok Vietnam - Ho Chi Minh EUROPE Austria - Wels Denmark - Copenhagen Finland - Espoo France - Paris Germany - Garching Germany - Haan Germany - Heilbronn Germany - Karlsruhe Germany - Munich Germany - Rosenheim Israel - Ra’anana Italy - Milan Italy - Padova Netherlands - Drunen Norway - Trondheim Poland - Warsaw Romania - Bucharest Spain - Madrid Sweden - Gothenberg Sweden - Stockholm UK - Wokingham Worldwide Sales and Service Trademarks Worldwide Sales and Service