PIC24FJ64GA004-I/PT Microchip Technology Inc., PIC24FJ64GA004-I/PT Datasheet - Page 201
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PIC24FJ64GA004-I/PT
Manufacturer Part Number
PIC24FJ64GA004-I/PT
Description
MCU, 16-Bit, 44-Pin, 64KB Flash, 8KB RAM, 35 I/O, Nanowatt
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC24FJ64GA004-IPT.pdf
(256 pages)
Specifications of PIC24FJ64GA004-I/PT
A/d Inputs
13 Channel, 10-Bit
Comparators
2
Cpu Speed
16 MIPS
Eeprom Memory
0 Bytes
Input Output
35
Interface
I2C/SPI/UART
Memory Capacity
64 Kbytes
Memory Type
Flash
Number Of Bits
16
Number Of Inputs
35
Number Of Pins
44
Package Type
44-pin TQFP
Programmable Memory
64K Bytes
Ram Size
8K Bytes
Speed
32 MHz
Timers
5-16-bit
Voltage, Range
2-3.6 V
Voltage, Rating
2-3.6 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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22.0
22.1
The voltage reference module is controlled through the
CVRCON register (Register 22-1). The comparator
voltage reference provides two ranges of output
FIGURE 22-1:
© 2007 Microchip Technology Inc.
Note:
COMPARATOR VOLTAGE
REFERENCE
Configuring the Comparator
Voltage Reference
This data sheet summarizes the features
of this group of PIC24F devices. It is not
intended to be a comprehensive reference
source. For more information, refer to the
associated “PIC24F Family Reference
Manual” chapter.
CVRR
V
AV
CVREN
V
REF
REF
DD
COMPARATOR VOLTAGE REFERENCE BLOCK DIAGRAM
+
-
CVRSS = 0
CVRSS = 1
CVRSS = 1
CVRSS = 0
AV
16 Steps
SS
PIC24FJ64GA004 FAMILY
Preliminary
8R
R
R
R
R
R
R
R
voltage, each with 16 distinct levels. The range to be
used is selected by the CVRR bit (CVRCON<5>). The
primary difference between the ranges is the size of the
steps
(CVR3:CVR0), with one range offering finer resolution.
The comparator reference supply voltage can come
from either V
V
bit (CVRCON<4>).
The settling time of the comparator voltage reference
must be considered when changing the CV
output.
8R
REF
-. The voltage source is selected by the CVRSS
selected
CVR3:CVR0
DD
and V
by
SS
the
, or the external V
CV
CV
REF
REF
DS39881B-page 199
Selection
REF
+ and
REF
bits
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