P87C660X2 PHILIPS [NXP Semiconductors], P87C660X2 Datasheet - Page 95

• Manufacturer Part Number: P87C660X2
• Description: 80C51 8-bit microcontroller family
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
2003 Oct 02
80C51 8-bit microcontroller family
RAM, low voltage (2.7 to 5.5 V), low power, high speed (30/33
MHz), two 400KB I
A8–A15 are programming addresses
(not external memory addresses per
device pin out)
ALE/PROG:
ALE/PROG:
A8–A15 are programming addresses
device pin out)
(not external memory addresses per
SEE EXPLODED VIEW BELOW
2
1
0
C interfaces
4–6MHz
4–6MHz
1
0
1
A0–A7
A0–A7
1
1
1
1
1
1
2
5 PULSES
16 KB OTP/ROM, 512B
t
GLGH
3
Figure 64. Programming Configuration
= 100 s 10 s
Figure 66. Program Verification
4
Figure 65. PROG Waveform
P1
RST
P3.6
P3.7
XTAL2
XTAL1
V
P1
RST
P3.6
P3.7
XTAL2
XTAL1
V
SS
SS
5
OTP
OTP
95
1
ALE/PROG
ALE/PROG
P2.0–P2.5
P2.0–P2.5
EA/V
EA/V
PSEN
PSEN
V
P2.7
P2.6
P3.4
P3.5
P2.7
P2.6
P3.4
P3.5
V
CC
PP
PP
P0
P0
t
CC
GHGL
= 10 s MIN
+5V
+5V
SU00875
PGM DATA
+12.75V
5 PULSES TO GROUND
0
1
0
A8–A13
A14
A15 (RD2 ONLY)
PGM DATA
1
1
0
0 ENABLE
0
A8–A13
A14
A15 (RD2 ONLY)
P8xC660X2/661X2
SU01660
SU01659
Product data