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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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DSPIC30F3012AT20E/ML датащи(PDF) 166 Page - Microchip Technology |
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DSPIC30F3012AT20E/ML датащи(HTML) 166 Page - Microchip Technology |
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166 / 205 page  dsPIC30F2011/2012/3012/3013 DS70139E-page 164 © 2006 Microchip Technology Inc. TABLE 20-24: TYPE B TIMER (TIMER2 AND TIMER4) EXTERNAL CLOCK TIMING REQUIREMENTS AC CHARACTERISTICS Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40°C ≤ TA ≤ +85°C for Industrial -40°C ≤ TA ≤ +125°C for Extended Param No. Symbol Characteristic Min Typ Max Units Conditions TB10 TtxH TxCK High Time Synchronous, no prescaler 0.5 TCY + 20 — — ns Must also meet parameter TB15 Synchronous, with prescaler 10 — — ns TB11 TtxL TxCK Low Time Synchronous, no prescaler 0.5 TCY + 20 — — ns Must also meet parameter TB15 Synchronous, with prescaler 10 — — ns TB15 TtxP TxCK Input Period Synchronous, no prescaler TCY + 10 — — ns N = prescale value (1, 8, 64, 256) Synchronous, with prescaler Greater of: 20 ns or (TCY + 40)/N TB20 TCKEXTMRL Delay from External TxCK Clock Edge to Timer Increment 0.5 TCY —1.5 TCY — Note: Timer2 and Timer4 are Type B. TABLE 20-25: TYPE C TIMER (TIMER3 AND TIMER5) EXTERNAL CLOCK TIMING REQUIREMENTS AC CHARACTERISTICS Standard Operating Conditions: 2.5V to 5.5V (unless otherwise stated) Operating temperature -40°C ≤ TA ≤ +85°C for Industrial -40°C ≤ TA ≤ +125°C for Extended Param No. Symbol Characteristic Min Typ Max Units Conditions TC10 TtxH TxCK High Time Synchronous 0.5 TCY + 20 — — ns Must also meet parameter TC15 TC11 TtxL TxCK Low Time Synchronous 0.5 TCY + 20 — — ns Must also meet parameter TC15 TC15 TtxP TxCK Input Period Synchronous, no prescaler TCY + 10 — — ns N = prescale value (1, 8, 64, 256) Synchronous, with prescaler Greater of: 20 ns or (TCY + 40)/N TC20 TCKEXTMRL Delay from External TxCK Clock Edge to Timer Increment 0.5 TCY —1.5 TCY — Note: Timer3 and Timer5 are Type C. |
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