C501 Datasheet, PDF (27/48 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

C501
A0 - A7
1
1
1
4 - 6 MHz
Port 1
RESET
P3.6
P3.7
XTAL2
XTAL1
V_SS
C501-1E
V_CC
Port 0
EA/V_PP
ALE/PROG
PSEN
P2.7
P2.6
P2.0 - P2.4
MCS03232
+5 V
Programming
Data
+12.75 V
25 x 100 µs
Low Pulses
0
1
0
A8 - A12
Figure 10
C501-1E OTP Memory Programming Configuration
ALE/PROG
ALE/PROG
25 Pulses
10 µs min.
1
0
µµ
MCT03234
Figure 11
C501-1E ALE/PROG Waveform
Semiconductor Group
27
1997-04-01