C541U Datasheet, PDF (16/63 Pages) Siemens Semiconductor Group – 8 BIT CMOS MICROCONTROLLER

C541U
The clock generator provides the internal clock signals to the chip. These signals define the internal
phases, states and machine cycles. Figure 8 shows the recommended oscillator circuits for crystal
and external clock operation.
C
XTAL2
12
C541U
C
MHz
XTAL1
C = 20pF ± 10pF for crystal operation
C541U
V_DD
N.C.
XTAL2
External
Clock
Signal
XTAL1
Figure 8
Recommended Oscillator Circuitries
Semiconductor Group
14