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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MPC852T датащи(PDF) 68 Page - Freescale Semiconductor, Inc |
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MPC852T датащи(HTML) 68 Page - Freescale Semiconductor, Inc |
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68 / 88 page  MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3 68 Freescale Semiconductor UTOPIA AC Electrical Specifications Figure 70 shows the I2C bus timing. Figure 70. I2C Bus Timing Diagram 12 UTOPIA AC Electrical Specifications Table 28 shows the AC electrical specifications for the UTOPIA interface. Table 28. UTOPIA AC Electrical Specifications Num Signal Characteristic Direction Min Max Unit U1 UtpClk rise/fall time (Internal clock option) Output 4 ns ns Duty cycle 50 50 % Frequency 33 MHz U1a UtpClk rise/fall time (external clock option) Input 4ns ns Duty cycle 40 60 % Frequency 33 MHz U2 RxEnb and TxEnb active delay Output 2 ns 16 ns ns U3 UTPB, SOC, Rxclav and Txclav setup time Input 4 ns ns U4 UTPB, SOC, Rxclav and Txclav hold time Input 1 ns ns U5 UTPB, SOC active delay (and PHREQ and PHSEL active delay in MPHY mode) Output 2 ns 16 ns ns SCL 202 205 203 207 204 208 206 209 211 210 SDA |
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