3. This is the minimum time required after the PLL set up is changed to ensure reliable operation.
10.7 Crystal Oscillator Timing
Table 10-15 Crystal Oscillator Parameters
Characteristic
Crystal Start-up time
Symbol
TCS
Min
4
Typ
5
Max
10
Unit
ms
ms
ohms
ps
Resonator Start-up time
TRS
0.1
—
0.18
—
1
Crystal ESR
RESR
TD
120
250
1.5
300
300
290
110
1
Crystal Peak-to-Peak Jitter
Crystal Min-Max Period Variation
Resonator Peak-to-Peak Jitter
Resonator Min-Max Period Variation
Bias Current, high-drive mode
Bias Current, low-drive mode
Quiescent Current, power-down mode
70
0.12
—
—
TPV
—
ns
TRJ
—
ps
TRP
—
—
ps
IBIASH
IBIASL
IPD
—
250
80
0
μA
—
μA
—
μA
10.8 Reset, Stop, Wait, Mode Select, and Interrupt Timing
1,2
Table 10-16 Reset, Stop, Wait, Mode Select, and Interrupt Timing
Typical
Min
Typical
Max
Characteristic
Symbol
Unit
See Figure
Minimum RESET Assertion Duration
Edge-sensitive Interrupt Request Width
tRA
tIRW
16T
1.5T
18T
14T
1.5T
—
—
—
—
—
ns
ns
ns
10-4
10-5
10-6
IRQA, IRQB Assertion to General Purpose
Output Valid, caused by first instruction
execution in the interrupt service routine
tIG
t
IG - FAST
tIW
IRQA Width Assertion to Recover from Stop
State3
ns
10-8
1. In the formulas, T = clock cycle. For an operating frequency of 60MHz, T = 16.67ns. At 8MHz (used during Reset and
Stop modes), T = 125ns.
2. Parameters listed are guaranteed by design.
56F8345 Technical Data, Rev. 17
142
Freescale Semiconductor
Preliminary
FREESCALE [ Freescale ]
