Datasheet SCT2400 (CML Microcircuits) - 7

SCT2400 Datasheet
3. Pin Configuration
SCT2400 is supplied in a BGA144 package. Pin assignment of SCT2400 is shown in Table 3-1 Pin List and 3-2 Pin Diagram: Pin No. Pin name Type Function A1 I2C1_DAT I/O I2C1 data connect to external EEPROM A2 I2C1_CLK O I2C1 clock connect to external EEPROM A3 PE0 I/O GPIO A4 PB9 I/O GPIO Connect it to external Li-ion battery charger. Tie to A5 PB7_/PG (1) I VDDD if not used, refer to schematics in section 11 Connect it to external Li-ion battery charger. Tie to A6 PB3_/CHG (1) I VDDD if not used, refer to schematics in section 11 A7 TEST2 O Test purpose only, leave open circuit A8 SWCLK I/O SWCLK for MCU SWD port A9 XTB - RF Reference oscillator connection A10 XTA - RF Reference oscillator connection A11 AVSS1 P RF Ground Internal regulater output for internal PA, decouple A12 VR_PA O with a 10nF capacitor to ground for stability External 32.768 kHz oscillator connection to support B1 OSC32IN I an RTC function (not currently supported) B2 PE3 I/O GPIO B3 PE1 I/O GPIO B4 BOOT0 I Boot mode select Copyright ©2019 Wuxi Sicomm Communication Technologies, Inc 7 Document Outline Datasheet Front Page Change History 1. Overview 2. Features 3. Pin Configuration 4. RF Transceiver 4.1. Transmitter 4.2. Receiver 4.3. PLL&VCO 4.4. RC Oscillator 4.5. RF Front-end circuit 5. Baseband Core 5.1. Overview 5.2. Modem 5.3. DFR Protocol Stack 5.3.1. DFR Transmitter Signal Flow 5.3.2. DFR Receiver Signal Flow 6. Programmable Function Keys 7. Control Command Protocol 8. Interface and Timing Sequence 8.1. Power Supply 8.2. Reset and Power Up Timing 8.2.1. Baseband Core Operating Frequency 8.2.2. BOOT Mode 8.3. I2S High-speed Serial Port Timing 8.4. I2C Interface 8.5. UART Interface 8.6. USB Interface 8.7. Other Interfaces 9. Battery Management 10. Specification 10.1. Recommended Operating Conditions 10.2. Power Consumption 10.3. ESD 10.4. Parameter Performance 11. Reference Schematic Diagram 12. Text messaging support 13. Package Information 14. Ordering Information Appendix A End of Document