at91sam7l128 ATMEL Corporation, at91sam7l128 Datasheet - Page 17

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at91sam7l128

Manufacturer Part Number
at91sam7l128
Description
At91 Arm Thumb-based Microcontroller
Manufacturer
ATMEL Corporation
Datasheet

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6257AS–ATARM–28-Feb-08
Figure 5-4.
If the charge pump is not needed, the user can apply an external voltage. See
Figure 5-5.
Please note that in this topology, switching time enhancement buffers are not available. (Refer
Section 10.13 ”Segment LCD
External supply
External supply
The LCD Regulator is Externally Supplied
The Charge Pump and the LCD Regulator are Not Used
R = 10
Controller”.)
VDDINLCD
VDDINLCD
VDDLCD
VDDLCD
VDD3V6
VDD3V6
VDDIO2
VDDIO2
AT91SAM7L128/64 Preliminary
Regulator
Regulator
Voltage
Voltage
Charge
Charge
Pump
Pump
LCD
LCD
CAPP1
CAPM1
CAPP2
CAPM2
CAPP1
CAPM1
CAPP2
CAPM2
Figure 5-5
below:
17

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