C541U Datasheet, PDF (5/63 Pages) Siemens Semiconductor Group – 8 BIT CMOS MICROCONTROLLER

C541U
XTAL2
XTAL1
ALE
PSEN
EA
RESET
D+
D-
V_DD
V_SS
C541U
Port 0
8-bit Digital I/O
Port 1
6-bit Digital I/O
Port 2
8-bit Digital I/O
Port 3
8-bit Digital I/O
Figure 2
Logic Symbol
Semiconductor Group
3