sak-xc161cj-16f40f Infineon Technologies Corporation, sak-xc161cj-16f40f Datasheet - Page 73

• Manufacturer Part Number: sak-xc161cj-16f40f
• Description: 16-bit Single-chip Microcontroller
• Manufacturer: Infineon Technologies Corporation

4.4.3
Table 19
Parameter
Oscillator period
High time
Low time
Rise time
Fall time
1) The maximum limit is only relevant for PLL operation to ensure the minimum input frequency for the PLL.
2) The clock input signal must reach the defined levels
Figure 16
Note: If the on-chip oscillator is used together with a crystal or a ceramic resonator, the
Data Sheet
oscillator frequency is limited to a range of 4 MHz to 16 MHz.
It is strongly recommended to measure the oscillation allowance (negative
resistance) in the final target system (layout) to determine the optimum
parameters for the oscillator operation. Please refer to the limits specified by the
crystal supplier.
When driven by an external clock signal it will accept the specified frequency
range. Operation at lower input frequencies is possible but is verified by design
only (not subject to production test).
2)
2)
2)
2)
External Clock Drive XTAL1
0.5
External Clock Drive Characteristics (Operating Conditions apply)
External Clock Drive XTAL1
V
DDI
t
1
t
2
71
Symbol
t
t
t
t
t
OSC
1
2
3
4
V
ILC
t
and
OSC
t
3
SR
SR
SR
SR
SR
V
IHC
.
Min.
25
6
6
–
–
Limit Values
t
4
Electrical Parameters
MCT05572
Max.
250
–
–
8
8
XC161CJ-16F
V
V
1)
IHC
ILC
Derivatives
V2.4, 2006-08
Unit
ns
ns
ns
ns
ns