PCIMX536AVV8B datasheet(151/180 Pages) FREESCALE

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Electrical Characteristics

i.MX53xA Automotive and Infotainment Applications Processors, Rev. 1

Freescale Semiconductor

151

4.7.20.4

USB PHY Voltage Thresholds

Table 104 lists the USB PHY voltage thresholds.

4.7.20.5

USB PHY Termination

USB driver impedance in FS and HS modes is 45 Ω ±10% (steady state). No external resistors required.

4.8

XTAL and CKIL Electricals

Table 105 shows the XTALOSC electrical specifications.

WARNING

Due to XTALOSC automatic level controller, the power consumption

depends heavily on the working frequency, C-load and crystal quality. The

above results are achieved at a frequency 24 MHz, 10 pF load capacitor,

7 pF crystal shunt capacitor and 80 Ω ESR.

Table 106 shows the XTALOSC_32K electrical specifications.

Table 107 shows the CKIL electrical specifications.

Table 104.

VBUS Comparators Thresholds

Parameter

Conditions

Min

Typ

Max

Unit

A-Device Session Valid

—

0.8

1.4

2.0

B-Device Session Valid

—

0.8

1.4

4.0

B-Device Session End

—

0.2

0.45

0.8

VBUS Valid Comparator Threshold1

1 For VBUS maximum rating, see Table 4 on page 18

—4.4

4.6

4.75

Table 105. XTALOSC Electrical Specifications

Parameter

Min

Typ

Max

Units

Frequency

MHz

Table 106. XTALOSC_32K Electrical Specifications

Parameter

Min

Typ

Max

Units

Frequency

32.768/32.01

1 Recommended nominal frequency 32.768 kHz.

kHz

Table 107. CKIL Electrical Specifications

Parameter

Min

Typ

Max

Units

Frequency

32.768

kHz

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