P87C51FB-4A NXP Semiconductors, P87C51FB-4A Datasheet - Page 46

• Manufacturer Part Number: P87C51FB-4A
• Description: Microcontrollers (MCU) 80C51 16K/256 OTP
• Manufacturer: NXP Semiconductors

Specifications of P87C51FB-4A

• Data Bus Width: 8 bit
• Program Memory Type: OTP
• Program Memory Size: 16 KB
• Data Ram Size: 256 B
• Interface Type: UART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 4
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Package / Case: PLCC-44
• Minimum Operating Temperature: 0 C
• Lead Free Status / Rohs Status: Details
• Other names: P87C51FB-4A,512

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