C509-L_97 Datasheet, PDF (90/290 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

On-Chip Peripheral Components
C509-L
Figure 6-9
Bidirectional Port Structure - Output Mode - “0”
The FET n1 is switched on and is driving a '0' at the port pin. FETs p1, p2, p3 are switched off.
Semiconductor Group
6-12
1997-10-01