P87C51FB-5A NXP Semiconductors, P87C51FB-5A Datasheet - Page 46

• Manufacturer Part Number: P87C51FB-5A
• Description: MCU 8-Bit 87C 80C51 CISC 16KB EPROM 3.3V/5V 44-Pin PLCC Tube
• Manufacturer: NXP Semiconductors

Specifications of P87C51FB-5A

• Package: 44PLCC
• Device Core: 80C51
• Family Name: 87C
• Maximum Speed: 16 MHz
• Ram Size: 256 Byte
• Program Memory Size: 16 KB
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Program Memory Type: EPROM
• Number Of Programmable I/os: 32
• Interface Type: UART
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 3

Philips Semiconductors
2000 Aug 07
80C51 8-bit microcontroller family
8K–64K/256–1K OTP/ROM/ROMless, low voltage (2.7V–5.5V),
low power, high speed (33MHz)
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
1
0
4–6MHz
4–6MHz
1
0
1
A0–A7
A0–A7
1
1
1
1
1
1
2
5 PULSES
t
GLGH
3
Figure 41. Programming Configuration
= 100 s 10 s
Figure 43. Program Verification
4
Figure 42. 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
46
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
8XC51RA+/RB+/RC+/RD+/80C51RA+
+5V
SU00875
PGM DATA
+12.75V
5 PULSES TO GROUND
0
1
0
A8–A13
A14
A15 (RD+ ONLY)
PGM DATA
1
1
0
0 ENABLE
0
A8–A13
A14
A15 (RD+ ONLY)
8XC51FA/FB/FC/80C51FA
SU00870
SU00838A
Product specification
8XC54/58