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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PIC12F635E/SS датащи(PDF) 173 Page - Microchip Technology |
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PIC12F635E/SS датащи(HTML) 173 Page - Microchip Technology |
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173 / 196 page  © 2005 Microchip Technology Inc. Preliminary DS41232B-page 171 PIC12F635/PIC16F636/639 15.12 SPI Timing: Analog Front-End (AFE) for PIC16F639 AC CHARACTERISTICS Standard Operating Conditions (unless otherwise stated) Supply Voltage 2.0V ≤ VDD ≤ 3.6V Operating temperature -40°C ≤ TAMB ≤ +85°C for industrial -40°C ≤ TAMB ≤ +125°C for extended LC Signal Input Sinusoidal 300 mVPP Carrier Frequency 125 kHz LCCOM connected to VSS Param Sym Characteristic Min Typ† Max Units Conditions FSCLK SCLK Frequency — — 3 MHz Tcssc CS fall to first SCLK edge setup time 100 — — ns TSU SDI setup time 30 — — ns THD SDI hold time 50 — — ns THI SCLK high time 150 — — ns TLO SCLK low time 150 — — ns TDO SDO setup time — — 150 ns TSCCS SCLK last edge to CS rise setup time 100 — — ns TCSH CS high time 500 — — ns TCS1CS rise to SCLK edge setup time 50 — — ns TCS0 SCLK edge to CS fall setup time 50 — — ns SCLK edge when CS is high TSPIR Rise time of SPI data (SPI Read command) —10 — ns VDD = 3.0V. Time is measured from 10% to 90% of amplitude TSPIF Fall time of SPI data (SPI Read command) —10 — ns VDD = 3.0V. Time is measured from 90% to 10% of amplitude * Parameter is characterized but not tested. † Data in “Typ” column is at 3.0V, 25°C unless otherwise stated. These parameters are for design guidance only and are not tested. Note 1: Required output enable filter high time must account for input path analog delays = TOEH - TDR + TDF 2: Required output enable filter low time must account for input path analog delays (= TOEL + TDR - TDF) |
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