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I2CSTAT 数据表(PDF) 167 Page - Microchip Technology |
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I2CSTAT 数据表(HTML) 167 Page - Microchip Technology |
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167 / 210 page  © 2010 Microchip Technology Inc. DS70139G-page 167 dsPIC30F2011/2012/3012/3013 FIGURE 20-8: TYPE A, B AND C TIMER EXTERNAL CLOCK TIMING CHARACTERISTICS TABLE 20-23: TYPE A TIMER (TIMER1) 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 TA10 TTXH TxCK High Time Synchronous, no prescaler 0.5 TCY + 20 — — ns Must also meet parameter TA15 Synchronous, with prescaler 10 — — ns Asynchronous 10 — — ns TA11 TTXL TxCK Low Time Synchronous, no prescaler 0.5 TCY + 20 — — ns Must also meet parameter TA15 Synchronous, with prescaler 10 — — ns Asynchronous 10 — — ns TA15 TTXP TxCK Input Period Synchronous, no prescaler TCY + 10 — — ns Synchronous, with prescaler Greater of: 20 ns or (TCY + 40)/N — — — N = prescale value (1, 8, 64, 256) Asynchronous 20 — — ns OS60 Ft1 SOSC1/T1CK oscillator input frequency range (oscillator enabled by setting bit TCS (T1CON, bit 1)) DC — 50 kHz TA20 TCKEXTMRL Delay from External TxCK Clock Edge to Timer Increment 0.5 TCY —1.5 TCY — Note: Timer1 is a Type A. Note: Refer to Figure 20-3 for load conditions. Tx11 Tx15 Tx10 Tx20 TMRX OS60 TxCK |
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