sak-xc2387a-56fxxl Infineon Technologies Corporation, sak-xc2387a-56fxxl Datasheet - Page 110

• Manufacturer Part Number: sak-xc2387a-56fxxl
• Description: 16/32-bit Single-chip Microcontroller With 32-bit Performance
• Manufacturer: Infineon Technologies Corporation

4.6.3
These parameters specify the external clock generation for the XC238xA. The clock can
be generated in two ways:
•
•
If connected to CLKIN1, the input signal must reach the defined input levels
If connected to XTAL1, a minimum amplitude
the operation of the on-chip oscillator.
Note: The given clock timing parameters (
Note: Operating Conditions apply.
Table 26
Parameter
Input voltage range limits
for signal on XTAL1
Input voltage (amplitude)
on XTAL1
XTAL1 input current
Oscillator frequency
High time
Low time
Rise time
Fall time
1) Overload conditions must not occur on pin XTAL1.
2) The amplitude voltage
Data Sheet
operation and the resulting voltage peaks must remain within the limits defined by
By connecting a crystal or ceramic resonator to pins XTAL1/XTAL2.
By supplying an external clock signal. This clock signal can be supplied either to
pin XTAL1 (core voltage domain) or to pin CLKIN1 (IO voltage domain).
input signal.
External Clock Input Parameters
External Clock Input Characteristics
V
AX1
refers to the offset voltage
Symbol
V
V
I
f
t
t
t
t
OSC
1
2
3
4
IL
IX1
AX1
SR
SR
SR
SR
CC
SR
CC 4
SR 0.3 ×
Min.
-1.7 +
V
V
–
4
6
6
–
–
DDI
DDI
XC2000 Family Derivatives / Base Line
110
t
Limit Values
1
V
… t
AX1
Typ.
–
–
–
–
–
–
–
8
8
V
OFF
4
(peak-to-peak voltage) is sufficient for
) are only valid for an external clock
. This offset voltage must be stable during the
Max.
1.7
–
±20
40
16
–
–
8
8
Unit Note / Test
V
V
μA
MHz Clock signal
MHz Crystal or
ns
ns
ns
ns
XC2385A, XC2387A
Electrical Parameters
V
IX1
.
Condition
1)
Peak-to-peak
voltage
0 V <
Resonator
V2.0, 2009-03
V
V
IL
2)
IN
and
<
V
DDI
V
IH
.