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PCIMX536AVV8B Datasheet(PDF) 22 Page - Freescale Semiconductor, Inc |
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PCIMX536AVV8B Datasheet(HTML) 22 Page - Freescale Semiconductor, Inc |
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22 / 180 page ![]() i.MX53xA Automotive and Infotainment Applications Processors, Rev. 1 22 Freescale Semiconductor Electrical Characteristics The system clock input XTAL is used to generate the main system clock. It supplies the PLLs and other peripherals. The system clock input can be connected to either external oscillator or a crystal using internal oscillator amplifier. CKIH1 and CKIH2 provide additional clock source option for peripherals that require specific and accurate frequencies. Table 7 shows the interface frequency requirements. 4.1.5 Maximal Supply Currents Table 8 represents the maximal momentary current transients on power lines, and should be used for power supply selection. Maximal currents higher by far than the average power consumption of typical use cases. For typical power consumption information, see i.MX53xA power consumption application note. Table 7. External Input Clock Frequency Parameter Description Symbol Min Typ Max Unit CKIL Oscillator1 1 External oscillator or a crystal with internal oscillator amplifier. fckil — 32.7682/32.0 2 Recommended nominal frequency 32.768 kHz. —kHz CKIH1, CKIH2 Operating Frequency fckih1, fckih2 See Table 31, "CAMP Electrical Parameters (CKIH1, CKIH2)," on page 44 MHz XTAL Oscillator fxtal 22 24 27 MHz Table 8. Maximal Supply Currents Power Line Conditions Max Current Unit VDDGP 800MHz ARM clock. 1450 mA VCC 800 mA VDDA+VDDAL1 100 mA VDD_DIG_PLL 10 mA VP 20 mA VDD_ANA_PLL 10 mA MVCC_XTAL 25 mA VDD_REG 325 mA VDD_FUSE Fuse Write Mode operation 60 mA NVCC_EMI_DRAM 1.8v (DDR2) 800 mA 1.5v (DDR3) 650 mA 1.2v (LPDDR2) 250 mA TVDAC_DHVDD + TVDAC_AHVDDRGB 200 mA |
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