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33784 Datasheet(PDF) 8 Page - Freescale Semiconductor, Inc |
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33784 Datasheet(HTML) 8 Page - Freescale Semiconductor, Inc |
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8 / 30 page  Analog Integrated Circuit Device Data 8 Freescale Semiconductor 33784 ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS Table 4. Dynamic Electrical Characteristics Characteristics noted under conditions -0.3V ≤ VBUSIN or VBUSOUT ≤ 30V, 6.0V ≤ VH_CAP ≤ 30V, -40°C ≤ TA ≤ 125°C, AGND = 0V, unless otherwise noted. Typical values noted reflect the approximate parameter means at TA = 25°C under nominal conditions, unless otherwise noted. Characteristic Symbol Min Typ Max Unit Internal Oscillator Frequency fOSC 9.0 10.0 11.0 MHz Internal Oscillator Duty Cycle DCOSC 45 50 55 % Initialization to Bus Switches Close tBS – – 50 μs Communication Data Rate DRATE 100 – 200 kbps Loss of Signal Reset Time(9) Maximum Time for BUSIN to Be Below Frame Threshold tTO 2.0 – 4.0 ms ADC Code Conversion Time(10) tADC – – 20 μs BUSIN Response Current Slew Rate 1.0mA to 9.0mA Transition Rise 9.0mA to 1.0mA Transition Fall tITR_R tITR_F – – – – 8.0 8.0 mA/ μs BUSIN Timing to Response Current BUSIN Negative Voltage Transition = 3.0V to IRSP = 7.0mA Rise TA = -40°C TA = +25°C TA =+125°C BUSIN Negative Voltage Transition = 3.0V to IRSP = 5.0mA Fall tRSP_R tRSP_F – – – – – – – – 2.5 2.5 3.0 2.5 μs Bus Signal Duty Cycle(9) Logic [0] (~ 1/3 + 20%) Logic [1] (~ 2/3 + 20%) DCL DCH 25 54 33 67 40 80 % I/O Transition Time (CLoad = 50pF)(9) tTRIO – – 100 ns I/O Delay from Input State Change to Status Register Valid(9) tINDLYIO – – 300 ns I/O Delay from DBUS Command to I/O Output State Change tOUTDLYIO – 11.5 15 μs Delay from I/O1 Rising Edge to ADC Value = 3F8(9) tADCDIS – – 300 ns HCAP tPOR Mask ON (rising edge) OFF (falling edge) tPORMASKHCAP (ON) tPORMASKHCAP (OFF) 2.0 1.0 5.0 3.5 9.0 8.0 μs REGOUT tPOR Mask ON (rising edge) OFF (falling edge) tPORMASKREG OUT(ON) tPORMASKREG OUT(OFF) 2.0 1.0 5.0 3.5 9.0 8.0 μs Notes 9. Assured by design. 10. Assured by design. Conversion is started and completed during idle time. |
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