sak-xc2786x-96f66l-ac Infineon Technologies Corporation, sak-xc2786x-96f66l-ac Datasheet - Page 99

• Manufacturer Part Number: sak-xc2786x-96f66l-ac
• Description: 16/32-bit Single-chip Microcontroller With 32-bit Performance
• Manufacturer: Infineon Technologies Corporation

Preliminary
4.6.3
These parameters specify the external clock for the XC2786X. The clock signal can be
supplied either to pin P2.9 or to pin XTAL1.
Table 26
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 20
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 from 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 oscillator operation. Please refer to the limits specified by the
crystal supplier.
When driven by an external clock signal it will accept the specified input frequency
range. Operation at input frequencies below 4 MHz is possible but is only verified
by design (not subject to production test).
2)
2)
2)
2)
0.5
External Clock Drive
External Clock Drive Characteristics
(Operating Conditions apply)
V
External Clock Drive XTAL1
DDI
t
1
Symbol
t
t
t
t
t
OSC
1
2
3
4
SR 25
SR 6
SR 6
SR –
SR –
t
2
Min.
97
V
ILC
t
OSC
and
t
Limit Values
3
V
IHC
(for XTAL1) or
Max.
250
–
–
8
8
XC2000 Family Derivatives
1)
t
4
Electrical Parameters
MCT05572
V
IL
Unit Note / Test
ns
ns
ns
ns
ns
and
V
V
V
IHC
ILC
IH
Condition
V2.0, 2008-03
for P2.9.
XC2786X