83C453 Philips Semiconductors, 83C453 Datasheet - Page 23

• Manufacturer Part Number: 83C453
• Description: 80C51 8-bit microcontroller family 8K/256 OTP/ROM/ expanded I/O
• Manufacturer: Philips Semiconductors

Philips Semiconductors
1998 Apr 23
80C51 8-bit microcontroller family
8K/256 OTP/ROM, expanded I/O
ALE/PROG:
ALE/PROG:
1
0
4–6MHz
4–6MHz
1
0
A0–A7
A0–A7
1
1
1
1
1
1
Figure 25. Programming Configuration
Figure 27. Program Verification
P1
RST
P3.6
P3.7
XTAL2
XTAL1
V
Figure 26. PROG Waveform
P1
RST
P3.6
P3.7
XTAL2
XTAL1
V
SS
SS
15 TO 25 PULSES
10 s MIN
87C453
87C453
23
ALE/PROG
ALE/PROG
P2.0–P2.4
P2.0–P2.4
EA/V
EA/V
PSEN
PSEN
V
P2.7
P2.6
P2.7
P2.6
V
PP
CC
PP
P0
CC
P0
+5V
+5V
100 s+10
PGM DATA
1
1
0
0 ENABLE
0
A8–A12
PGM DATA
+12.75V
15 TO 25 100 s PULSES TO GROUND
0
1
0
A8–A12
SU00161
83C453/87C453
Preliminary specification
SU00159
SU00160