C541U Datasheet, PDF (39/63 Pages) Siemens Semiconductor Group – 8 BIT CMOS MICROCONTROLLER

Pin Configuration in Programming Mode
C541U
N.C.
V_DD
V_SS
RESET
PMSEL0
N.C.
PMSEL1
PSEL
PRD
PALE
GND
6 5 4 3 2 1 44 43 42 41 40
7
39
8
38
9
37
10
36
11
C541U
35
12
34
13
33
14
Programming
32
15
Mode
31
16
30
17
29
18 19 20 21 22 23 24 25 26 27 28
D4
D5
D6
D7
EA/V_PP
N.C.
PROG
PSEN
A7
A6
A5
Figure 20
Pin Configuration of the C541U in Programming Mode (Top View)
Semiconductor Group
37