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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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THS12082CDAR датащи(PDF) 22 Page - Texas Instruments |
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THS12082CDAR датащи(HTML) 22 Page - Texas Instruments |
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22 / 44 page  THS12082 12-BIT, 8 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTERS SLAS271B – MAY 2000 – REVISED DECEMBER 2002 22 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 timing and signal description of the THS12082 (continued) write timing (using R/W, CS0-controlled) Figure 12 shows the write-timing behavior when the WR(R/W) input is programmed as a combined read-write input R/W. The RD input has to be tied to high-level in this configuration. This timing is called CS0-controlled because CS0 is the last external signal of CS0, CS1, and R/W that becomes valid. 90% 90% 90% 10% tw(CS) tsu(R/W) th(R/W) CS0 CS1 WR RD D(0–11) DATA_AV 10% tsu th Figure 12. Write Timing Diagram Using R/W (CS0-controlled) write timing parameter (CSO-controlled)† PARAMETER MIN TYP MAX UNIT tsu(R/W) Setup time, R/W stable to last CS valid 0 ns tsu Setup time, data valid to first CS invalid 5 ns th Hold time, first CS invalid to data invalid 2 ns th(R/W) Hold time, first CS invalid to R/W change 5 ns tw(CS) Pulse duration, CS active 10 ns † CS = CSO |
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