Datasheet

CGM Electrical Specification
MC68HC908AP Family Data Sheet, Rev. 4
Freescale Semiconductor 309
22.14 CGM Electrical Specification
Table 22-14. CGM Electrical Specifications
Characteristic Symbol Min Typ Max Unit
Reference frequency
f
RDV
30 32.768 100 kHz
Range nominal multiplies
f
NOM
— 125 — kHz
VCO center-of-range frequency
f
VRS
125k — 40M Hz
VCO range linear range multiplier L 1 — 255
VCO power-of-two-range multiplier
2
E
1—4
VCO multiply factor N 1 — 4095
VCO prescale multiplier
2
P
1—8
Reference divider factor R 1 1 15
VCO operating frequency
f
VCLK
125k — 40M Hz
Manual acquisition time
t
LOCK
— — 50 ms
Automatic lock time
t
LOCK
— — 50 ms
PLL jitter
(1)
1. Deviation of average bus frequency over 2ms. N = VCO multiplier.
f
J
0—
f
RCLK
×
0.025% × 2
P
N/4
Hz