C167CR
AC Characteristics
External Clock Drive XTAL1
VCC = 5 V ± 10 %;
VSS = 0 V
TA = 0 to + 70 ˚C
for SAB-C167CR-LM
TA = − 40 to + 85 ˚C for SAF-C167CR-LM
TA = − 40 to + 125 ˚C for SAK-C167CR-LM
Parameter
Symbol
Direct Drive 1:1
PLL 1:4
max.
Unit
min.
tOSC SR 50
max.
1000
–
min.
200
10
10
–
Oscillator period
High time
333
–
ns
ns
ns
ns
ns
1) 2)
t1
t2
t3
t4
SR 23
SR 23
SR –
SR –
1) 2)
Low time
–
–
2)
2)
Rise time
10
10
10
2)
2)
Fall time
10
–
1)
For temperatures above TA = + 85 ˚C the minimum value for t1 and t2 is 25 ns.
2)
The clock input signal must reach the defined levels VIL and VIH2
.
Figure 13
External Clock Drive XTAL1
Semiconductor Group
46
INFINEON [ Infineon ]
