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Atmel C51 Manuale Utente

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Hardware Description
C51 Microcontrollers Demo Board User Guide
2-4
4119C–8051–3/03
Section 2
Hardware Description
2.1
Block Diagram
Figure 2-1.  Block Diagram
2.2
Specifications
2.3
Supported 
Microcontrollers
Most Atmel C51 and C251 microcontrollers are supported.
The Demo Board does not support low voltage parts, only 5V parts are supported.
Reset & INT1#
Power 
interface
RS232
C51/C251
LCD 2*16
Bargraph
Config switches
128 K Flash memory
Glue
Synchro connectors
To All
Extensions
connector
Parameter
Typ
Max
Unit
Supply DC voltage
9
12
V
Supply DC current
200
mA
Consumption at 12 MHz
60
100
mA
Consumption at 60 MHz in X2 mode
110
150
mA
non-rechargeable battery capacity
550
mAh
Rechargeable battery capacity
150
mAh