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AT89C51RB2-3CSIM Datasheet(PDF) 3 Page - ATMEL Corporation

No. de pieza AT89C51RB2-3CSIM
Descripción Electrónicos  Microcontroller with 16K/32K Bytes Flash
PDF  127 Pages
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Fabricante Electrónico  ATMEL [ATMEL Corporation]
Página de inicio  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89C51RB2-3CSIM Datasheet(HTML) 3 Page - ATMEL Corporation

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AT89C51RB2/RC2
4180C–8051–12/03
Block Diagram
Figure 1. Block Diagram
Notes:
1. Alternate function of Port 1.
2. Alternate function of Port 3.
Timer 0
INT
RAM
256x8
WR
RD
EA
PSEN
ALE/
XTAL2
XTAL1
EUART
CPU
Timer 1
Ctrl
(2)
(2)
C51
CORE
(2) (2)
(2) (2)
Port 0 Port 1 Port 2 Port 3
Parallel I/O Ports & Ext. Bus
XRAM
1Kx8
IB-bus
PCA
PROG
Watch
Dog
(2)
(2)
(1)
(1)
Timer2
(1)
(1)
Flash
32Kx8 or
16Kx8
Key
Board
ROM
2Kx8
Boot
+
BRG
SPI
(1) (1) (1) (1)



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