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PIC18F1220E/SOSQTP Datasheet(PDF) 168 Page - Microchip Technology

Part # PIC18F1220E/SOSQTP
Description  18/20/28-Pin High-Performance, Enhanced Flash Microcontrollers
PDF  308 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC18F1220E/SOSQTP Datasheet(HTML) 168 Page - Microchip Technology

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PIC18F1220/1320
DS39605F-page 166
© 2007 Microchip Technology Inc.
FIGURE 18-2:
LOW-VOLTAGE DETECT (LVD) BLOCK DIAGRAM
The LVD module has an additional feature that allows
the user to supply the trip voltage to the module from
an external source. This mode is enabled when bits,
LVDL3:LVDL0, are set to ‘1111’. In this state, the com-
parator input is multiplexed from the external input pin,
LVDIN (Figure 18-3). This gives users flexibility,
because it allows them to configure the Low-Voltage
Detect interrupt to occur at any voltage in the valid
operating range.
FIGURE 18-3:
LOW-VOLTAGE DETECT (LVD) WITH EXTERNAL INPUT BLOCK DIAGRAM
LVDIF
VDD
LVDEN
LVD Control
Register
Internally Generated
Reference Voltage
LVDIN
1.2V
LVD
EN
LVD Control
BGAP
BODEN
LVDEN
VxEN
LVDIN
Register
VDD
VDD
Externally Generated
Trip Point



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