PIC32MX795F512L-80I/PT Microchip Technology Inc., PIC32MX795F512L-80I/PT Datasheet - Page 157

• Manufacturer Part Number: PIC32MX795F512L-80I/PT
• Description: 512KB Flash, 128KB RAM, 80 MHz, USB, ENET, 2xCAN, 8 DMA
• Manufacturer: Microchip Technology Inc.

Specifications of PIC32MX795F512L-80I/PT

• A/d Inputs: 16-Channel, 10-Bit
• Comparators: 2
• Eeprom Memory: 0 Bytes
• Input Output: 85
• Interface: CAN/I2C/SPI/UART/USB
• Memory Type: Flash
• Number Of Bits: 32
• Package Type: 100-pin TQFP
• Programmable Memory: 512K Bytes
• Ram Size: 128K Bytes
• Speed: 80 MHz
• Temperature Range: –40 to +85 °C
• Timers: 5-16-bit
• Voltage, Range: 2.3-3.6 V

26.0
FIGURE 26-1:
© 2010 Microchip Technology Inc.
Note 1: This bit is not available on PIC32MX575/675/695/775 devices. On these devices CV
Note 1: This data sheet summarizes the features
2: Some registers and associated bits
COMPARATOR VOLTAGE
REFERENCE (CV
network and IV
of the PIC32MX5XX/6XX/7XX family of
devices. It is not intended to be a
comprehensive reference source. To
complement the information in this data
sheet, refer to Section 20. “Comparator
Voltage Reference (CV
in the “PIC32 Family Reference Manual” ,
which is available from the Microchip web
site (www.microchip.com/PIC32).
described in this section may not be
available on all devices. Refer to
Section 4.0 “Memory Organization”
this data sheet for device-specific register
and bit information.
V
AV
REF
V
AV
CVREN
DD
REF
CVRR
+
SS
-
COMPARATOR VOLTAGE REFERENCE BLOCK DIAGRAM
REF
CVRSS = 0
CVRSS = 1
is connected to 0.6V.
REF
CVRSS = 1
CVRSS = 0
REF
)
16 Steps
)” (DS61109)
8R
R
R
R
R
R
R
R
CV
in
RSRC
8R
The CV
that provides a selectable reference voltage. Although
its primary purpose is to provide a reference for the
analog comparators, it also may be used independently
of them.
A block diagram of the module is illustrated in
Figure
provide two ranges of voltage reference values and has
a power-down function to conserve power when the
reference is not being used. The module’s supply refer-
ence can be provided from either device V
external voltage reference. The CV
able for the comparators and typically available for pin
output.
The comparator voltage reference has the following
features:
• High and low range selection
• Sixteen output levels available for each range
• Internally connected to comparators to conserve
• Output can be connected to a pin
1.2V
0.6V
0.2V
PIC32MX5XX/6XX/7XX
device pins
26-1. The resistor ladder is segmented to
REF
CVR<3:0>
BGSEL<1:0>
module is a 16-tap, resistor ladder network
CVRCON<CVROE>
REF
(1)
IV
is generated by the Register
REF
V
REFSEL
CV
REFOUT
REF
DS61156F-page 157
(1)
output is avail-
CV
DD
REF
/V
SS
or an