80C31X2 Datasheet, PDF (51/62 Pages) NXP Semiconductors – 80C51 8-bit microcontroller family 4K/8K/16K/32K ROM/OTP 128B/256B RAM low voltage 2.7 to 5.5 V, low power, high speed 30/33 MHz

Philips Semiconductors
80C51 8-bit microcontroller family
4K/8K/16K/32K ROM/OTP, low voltage (2.7 to 5.5 V),
low power, high speed (30/33 MHz)
Product data
P80C3xX2; P80C5xX2;
P87C5xX2
+5V
A0–A7
1
1
1
4–6MHz
P1
RST
P3.6
P3.7
XTAL2
XTAL1
V_SS
V_CC
P0
OTP
EA/V_PP
ALE/PROG
PSEN
P2.7
P2.6
P2.0–P2.5
Figure 40. Programming Configuration
PGM DATA
+12.75V
5 PULSES TO GROUND
0
1
0
A8–A12
SU01488
5 PULSES
1
ALE/PROG:
0
1
2
3
4
5
SEE EXPLODED VIEW BELOW
1
ALE/PROG:
0
t_GLGH = 100µs±10µs
t_GHGL = 10µs MIN
1
Figure 41. PROG Waveform
SU00875
+5V
A0–A7
1
1
1
4–6MHz
P1
RST
P3.6
P3.7
XTAL2
XTAL1
V_SS
V_CC
P0
OTP
EA/V_PP
ALE/PROG
PSEN
P2.7
P2.6
P2.0–P2.5
Figure 42. Program Verification
PGM DATA
1
1
0
0 ENABLE
0
A8–A12
SU01489
2003 Jan 24
51