XC2797X Datasheet, PDF (119/147 Pages) Infineon Technologies AG – 16/32-Bit Single-Chip Microcontroller with 32-Bit Performance

XC2797X
XC2000 Family Derivatives / High Line
Electrical Parameters
1) The amplitude voltage V_AX1 refers to the offset voltage V_OFF. This offset voltage must be stable during the
operation and the resulting voltage peaks must remain within the limits defined by V_IX1.
2) Overload conditions must not occur on pin XTAL1.
Note: For crystal or ceramic resonator operation, 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.
The manufacturers of crystals and ceramic resonators offer an oscillator
evaluation service. This evaluation checks the crystal/resonator specification
limits to ensure a reliable oscillator operation.
t₁
t₃
V_OFF
V_AX1
t2
t_OSC = 1/f_OSC
Figure 20 External Clock Drive XTAL1
0.9 VAX1
0.1 VAX1
t₄
MC_ EXTCLOCK
Data Sheet
119
V1.2, 2010-09