87C751 Philips Semiconductors, 87C751 Datasheet - Page 4

• Manufacturer Part Number: 87C751
• Description: 80C51 8-bit microcontroller family 2K/64 OTP/ROM/ I2C/ low pin count
• Manufacturer: Philips Semiconductors

Philips Semiconductors
BLOCK DIAGRAM
1998 May 01
80C51 8-bit microcontroller family
2K/64 OTP/ROM, I
RST
V
V
CC
SS
X1
CONTROL
TIMING
RAM ADDR
REGISTER
REGISTER
OSCILLATOR
AND
B
PD
X2
2
C, low pin count
RAM
ACC
TMP2
PSW
CONTROL
I
ALU
P1.0–P1.7
DRIVERS
2
PORT 1
PORT 1
C
LATCH
DRIVERS
P0.0–P0.2
PORT 0
PORT 0
LATCH
TMP1
4
PCON
I2DAT
PORT AND TIMER BLOCKS
INTERRUPT, SERIAL
I2CON
I2CFG I2STA
TH0
RTH
TL0
RTL
IE
POINTER
STACK
DRIVERS
P3.0–P3.7
PORT 3
PORT 3
LATCH
TCON
EPROM
ROM/
PROGRAM
REGISTER
PROGRAM
COUNTER
ADDRESS
MENTER
INCRE-
BUFFER
83C751/87C751
DPTR
PC
SU00316
Product specification