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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MCIMX503CVM8B датащи(PDF) 47 Page - Freescale Semiconductor, Inc |
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MCIMX503CVM8B датащи(HTML) 47 Page - Freescale Semiconductor, Inc |
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47 / 134 page  Electrical Characteristics i.MX50 Applications Processors for Consumer Products, Rev. 2 Freescale Semiconductor 47 4.6 System Modules Timing This section contains the timing and electrical parameters for the modules in the i.MX50 processor. 4.6.1 Reset Timings Parameters Figure 6 shows the reset timing and Table 35 lists the timing parameters. Figure 6. Reset Timing Diagram 4.6.2 WDOG Reset Timing Parameters Figure 7 shows the WDOG reset timing and Table 36 lists the timing parameters. Figure 7. WDOG_RST_B Timing Diagram Single output slew rate (Driver impedance =40 Ω+/-30%) tsr 1.5 3.5 V/ns Single output slew rate (Driver impedance =60 Ω+/-30% tsr 1 2.5 V/ns 1Vid(ac) specifies the input differential voltage |Vtr-Vcp| required for switching, where Vtr is the “true” input signal and Vcp is the “complementary” input signal. The Minimum value is equal to Vih(ac)-Vil(ac). 2The typical value of Vix(ac) is expected to be about 0.5*OVDD. and Vix(ac) is expected to track variation of OVDD. Vix(ac) indicates the voltage at which differential input signal must cross. Table 35. Reset Timing Parameters ID Parameter Min Max Unit CC1 Duration of RESET_IN_B assertion to be qualified as valid (input slope = 5ns) 50 — ns Table 34. LPDDR2 I/O AC Parameters (continued) Parameter Symbol Min Max Unit RESET_IN_B CC1 (Input) WDOG_RST_B CC5 (Input) |
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