PIC24FJ64GA004-I/PT Microchip Technology Inc., PIC24FJ64GA004-I/PT Datasheet - Page 201

• Manufacturer Part Number: PIC24FJ64GA004-I/PT
• Description: MCU, 16-Bit, 44-Pin, 64KB Flash, 8KB RAM, 35 I/O, Nanowatt
• Manufacturer: Microchip Technology Inc.

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

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