C868_02 Datasheet, PDF (15/244 Pages) Infineon Technologies AG – 8 - Bit CMOS Microcontroller

C868
Introduction
Table 1-1 Pin Definitions and Functions
Symbol Pin Numbers I/O*) Function
P- P-
DSO- TSSOP-
28 38
NC
–
5,7,8,18, – Not connected
1920,21,
22,23,35
XTAL1 27 29
I XTAL1
Output of the inverting oscillator amplifier.
XTAL2 28 30
O XTAL2
Input to the inverting oscillator amplifier and input to
the internal clock generation circuits.
To drive the device from an external clock source,
XTAL2 should be driven, while XTAL1 is left
unconnected.
*)I=Input
O=Output
User’s Manual
1-7
V 0.4, 2002-01