MPC5633MMLL80 datasheet(88/106 Pages) FREESCALE

88 / 106 page

MPC5634M Microcontroller Data Sheet, Rev. 8

Freescale Semiconductor

4.10

Oscillator and PLLMRFM electrical characteristics

Diff Skew Itphla-tplhbI or

Itplhb-tphlaI

TSKEW

0.5

Termination

Trans. Line (differential Zo)

100

105



Temperature

–40

150

C

1 These are typical values that are estimated from simulation.

2 These specifications are subject to change per device characterization.

3 Preliminary target values. Actual specifications to be determined.

Table 24. PLLMRFM electrical specifications1

(VDDPLL =1.14 V to 1.32 V, VSS = VSSPLL = 0 V, TA = TL to TH)

Symbol

Parameter

Conditions

Value

Unit

min

max

fref_crystal

fref_ext

D PLL reference frequency range2

Crystal reference

MHz

External reference

fpll_in

P Phase detector input frequency range

(after pre-divider)

—4

MHz

fvco

P VCO frequency range3

—

256

512

MHz

fsys

C On-chip PLL frequency2

—16

MHz

fsys

T System frequency in bypass mode4

Crystal reference

MHz

External reference

tCYC

D System clock period

—

1 / fsys

fLORL

fLORH

D Loss of reference frequency window5

Lower limit

1.6

3.7

MHz

Upper limit

fSCM

P Self-clocked mode frequency 6,7

—1.2

MHz

CJITTER

T CLKOUT period

jitter8,9,10,11

Peak-to-peak (clock

edge to clock edge)

fSYS maximum

–5

% fCLKO

Long-term jitter (avg.

over 2 ms interval)

–6

tcst

T Crystal start-up time 12, 13

——

VIHEXT

T EXTAL input high voltage

Crystal Mode14,

0.8

 Vxtal  1.5V15

Vxtal +

0.4

—V

External Reference14,

VRC33/2

+ 0.4

VRC33

Table 23. DSPI LVDS pad specification 1, 2 (continued)

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