P87C51FB-4A NXP Semiconductors, P87C51FB-4A Datasheet - Page 3

• 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
BLOCK DIAGRAM
2000 Aug 07
ALE/PROG
80C51 8-bit microcontroller family
8K–64K/256–1K OTP/ROM/ROMless, low voltage (2.7V–5.5V),
low power, high speed (33 MHz)
EAV
PSEN
RST
PP
V
V
CC
SS
XTAL1
CONTROL
REGISTER
TIMING
RAM ADDR
REGISTER
OSCILLATOR
AND
B
PD
XTAL2
RAM
ACC
TMP2
DRIVERS
P1.0–P1.7
PORT 1
PORT 1
LATCH
PSW
DRIVERS
P0.0–P0.7
PORT 0
PORT 0
LATCH
ALU
TMP1
3
P.C.A. (FA & RA+ only)
TIMERS
SFRs
P2.0–P2.7
DRIVERS
PORT 2
PORT 2
LATCH
POINTER
8XC51RA+/RB+/RC+/RD+/80C51RA+
DRIVERS
STACK
P3.0–P3.7
PORT 3
PORT 3
LATCH
ROM/EPROM
8XC51FA/FB/FC/80C51FA
8
PROGRAM
REGISTER
PROGRAM
MULTIPLE
ADDRESS
COUNTER
MENTER
DPTR’S
INCRE-
BUFFER
PC
8
Product specification
SU00831B
8XC54/58
16