P83CL781 View Datasheet(PDF) - Philips Electronics
Part Name
Description
MFG CO.
P83CL781 Datasheet PDF : 76 Pages
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Philips Semiconductors
Low voltage 8-bit microcontrollers with
UART and I2C-bus
5 BLOCK DIAGRAM
Product specification
P83CL781; P83CL782
handbook, full pagewidth
XTAL1
XTAL2
EA
ALE
PSEN
WR
3
RD
3
RST
AD0 to 7
0
A8 to 15
2
T0
T1 INT0 INT1
3
3
3
3
MLA601
TWO
16-BIT
TIMER/
EVENT
COUNTERS
(T0, T1)
CPU
80C51
core
excluding
ROM/RAM
PROGRAM
MEMORY
16 kbyte
ROM
DATA
MEMORY
256 byte
RAM
VDD
8-bit internal bus
P83CL781
P83CL782
PARALLEL
I/O PORTS
AND
EXTERNAL
BUS
SERIAL
UART
PORT
16-BIT
TIMER/
EVENT
COUNTER
I2C
INTERFACE
VSS
33
P0 P1 P2 P3 TXD RXD
1
1
T2 T2EX
1
1
SCL SDA
0 alternative function of Port 0
1 alternative functions of Port 1
2 alternative function of Port 2
3 alternative function of Port 3
Fig.1 Block diagram.
1997 Mar 14
5
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