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SX8652EVKA 데이터시트(PDF) 9 Page - Semtech Corporation |
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SX8652EVKA 데이터시트(HTML) 9 Page - Semtech Corporation |
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9 / 29 page ![]() Revision V1.7/October 2010 ©2010 Semtech Corp. SX8652 www.semtech.com Page 9 ADVANCED COMMUNICATIONS & SENSING DATASHEET 15kV ESD Low Power 4-Wire / 5-Wire Resistive Touchscreen Controller with SPI Interface 2.5. Host Interface Specifications (i) All timing specifications refer to voltage levels (50% VDD, VOH, VOL) defined in Table 6 unless otherwise mentioned. Table 6. Host Interface Specifications 2.6. Host Interface Timing Waveforms Figure 4. SPI Timing Waveform Parameter Symbol Condition Min Typ Max Unit SPI TIMING SPECIFICATIONS (i) SCLK Clock Frequency Duty Cycle fSCLK duty 40 5000 60 kHz % NCS edge to first SCLK “↑” TCSS 50 ns NCS edge to DOUT Low TDCD 100 SCLK High Pulse Width TCKH 80 SCLK Low Pulse Width TCKL 80 Data Setup Time TDS 40 Data Valid to SCLK Hold Time TDH 70 Data Output Delay after SCLK “↓” TDOD 70 NCS “↑” to SCLK Ignored TCSI 50 NCS “↑” to DOUT Hi-Z state TCCZ 90 NCS Hold Time TCSW 150 tCKH tDS tDH tCSS tCKL tDCD tDOD tCSW tCSI tCCZ CSN SCLK DIN DOUT D11 VOL VOH 50%VDD 50%VDD 50%VDD |
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