80C31X View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
80C31X Datasheet PDF : 22 Pages
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Philips Semiconductors
CMOS single-chip 8-bit microcontrollers
Product specification
80C31/80C51/87C51
BLOCK DIAGRAM
VCC
VSS
RAM ADDR
REGISTER
RAM
P0.0–P0.7
PORT 0
DRIVERS
PORT 0
LATCH
P2.0–P2.7
PORT 2
DRIVERS
PORT 2
LATCH
ROM/EPROM
B
REGISTER
ACC
TMP2
TMP1
STACK
POINTER
ALU
PSW
PCON
TL1
SCON TMOD TCON
TH0 TL0 TH1
SBUF IE
IP
INTERRUPT, SERIAL
PORT AND TIMER BLOCKS
PSEN
ALE/PROG
EA/VPP
RST
TIMING
AND
CONTROL
PD
OSCILLATOR
XTAL1
XTAL2
PORT 1
LATCH
PORT 1
DRIVERS
P1.0–P1.7
PORT 3
LATCH
PORT 3
DRIVERS
P3.0–P3.7
PROGRAM
ADDRESS
REGISTER
BUFFER
PC
INCRE-
MENTER
PROGRAM
COUNTER
DPTR
SU00005
1996 Aug 16
3-7
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