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SC80C451CGA68 Datasheet(PDF) 3 Page - NXP Semiconductors

Part # SC80C451CGA68
Description  80C51 8-bit microcontroller family 4K/128 OTP/ROM/ROMless, expanded I/O
PDF  22 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

SC80C451CGA68 Datasheet(HTML) 3 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
80C451/83C451/87C451
80C51 8-bit microcontroller family
4K/128 OTP/ROM/ROMless, expanded I/O
1998 May 01
3
BLOCK DIAGRAM
PSEN
EAVPP
ALE/PROG
RST
XTAL1
XTAL2
VCC
VSS
PORT 0
DRIVERS
PORT 2
DRIVERS
RAM ADDR
REGISTER
RAM
PORT 0
LATCH
PORT 2
LATCH
REGISTER
B
ACC
STACK
POINTER
TMP2
TMP1
ALU
TIMING
AND
CONTROL
PD
OSCILLATOR
PSW
PORT 1
LATCH
PORT 3
LATCH
PORT 1
DRIVERS
PORT 3
DRIVERS
PROGRAM
ADDRESS
REGISTER
BUFFER
PC
INCRE-
MENTER
PROGRAM
COUNTER
DPTR
PCON
SCON
TMOD
TCON
TH0
TL0
TH1
TL1
SBUF
IE
IP
INTERRUPT, SERIAL
PORT AND TIMER BLOCKS
P1.0–P1.7
P3.0–P3.7
P0.0–P0.7
P2.0–P2.7
PORT 4
DRIVERS
PORT 4
LATCH
P4.0–P4.7
PORT 5
DRIVERS
PORT 5
LATCH
P5.0–5.7
PORT 6
LATCH
PORT 6
DRIVERS
P6.0–P6.7
PORT 6
CONTROL/STATUS
IDS ODS
AFLAG
BFLAG
4K x 8
ROM/EPROM
SU00086



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