SPC5644AF0MLU2 datasheet(90/138 Pages) FREESCALE

90 / 138 page

MPC5644A Microcontroller Data Sheet, Rev. 7

Freescale Semiconductor

3.11

Temperature sensor electrical characteristics

3.12

eQADC electrical characteristics

8 Proper PC board layout procedures must be followed to achieve specifications.

9 Values are with frequency modulation disabled. If frequency modulation is enabled, jitter is the sum of CJITTER and

either fCS or fDS (depending on whether center spread or down spread modulation is enabled).

10 This value is determined by the crystal manufacturer and board design. For 4 MHz to 40 MHz crystals specified for

this PLL, load capacitors should not exceed these limits.

11 Proper PC board layout procedures must be followed to achieve specifications.

12 This parameter is guaranteed by design rather than 100% tested.

13 VIHEXT cannot exceed VRC33 in external reference mode.

14 This specification applies to the period required for the PLL to relock after changing the MFD frequency control bits

in the synthesizer control register (SYNCR).

15 Modulation depth will be attenuated from depth setting when operating at modulation frequencies above 50 kHz.

Table 27. Temperature sensor electrical characteristics

Symbol

Parameter

Conditions

Value

Unit

min

typical

max

—

C Temperature

monitoring range

–40

—

150

°C

—

C Sensitivity

—

6.3

—

mV/°C

—

P Accuracy

TJ = –40 to 150 °C

–10

—

°C

Table 28. eQADC conversion specifications (operating)

Symbol

Parameter

Value

Unit

min

max

fADCLK

—

ADC clock (ADCLK) frequency

MHz

Conversion cycles

2+13

128+14

ADCLK cycles

TSR

Stop mode recovery time1

1 Stop mode recovery time is the time from the setting of either of the enable bits in the ADC Control Register to

the time that the ADC is ready to perform conversions.Delay from power up to full accuracy = 8 ms.

—10

s

fADCLK

—

ADC clock (ADCLK) frequency

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