PIC18F85K22-I/PT Microchip Technology, PIC18F85K22-I/PT Datasheet - Page 367

• Manufacturer Part Number: PIC18F85K22-I/PT
• Description: IC, 8BIT MCU, PIC18F, 64MHZ, TQFP-80
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F85K22-I/PT

• Controller Family/series: PIC18
• No. Of I/o's: 69
• Eeprom Memory Size: 1KB
• Ram Memory Size: 2KB
• Cpu Speed: 64MHz
• No. Of Timers: 8
• Core Size: 8 Bit
• Program Memory Size: 32KB
• Core Processor: PIC
• Speed: 64MHz
• Connectivity: EBI/EMI, I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 69
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 24x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

24.0
The analog comparator module contains three compar-
ators that can be independently configured in a variety
of ways. The inputs can be selected from the analog
inputs and two Internal Reference Voltages. The digital
outputs are available at the pin level and can also be
read through the control register. Multiple output and
interrupt event generation are also available. A generic
single comparator from the module is shown in
Figure
Key features of the module includes:
• Independent comparator control
• Programmable input configuration
• Output to both pin and register levels
• Programmable output polarity
• Independent interrupt generation for each
FIGURE 24-1:
 2009-2011 Microchip Technology Inc.
comparator with configurable interrupt-on-change
Note 1:
C2INB/C2IND
24-1.
CCH<1:0>
2:
COMPARATOR MODULE
CxINC
CV
CxINB
CxINA
Comparators, 1 and 3, use C2INB as an input to the inverting terminal. Comparator 2 uses C2IND as an input to
the inverted terminal.
C1INC, C2INC and C2IND are all unavailable for 64-pin devices (PIC18F6XK22).
V
(1,2)
REF
CREF
BG
(2)
COMPARATOR SIMPLIFIED BLOCK DIAGRAM
0
1
2
3
0
1
V
V
IN
IN
-
+
CON
Cx
PIC18F87K22 FAMILY
24.1
The CMxCON registers (CM1CON, CM2CON and
CM3CON) select the input and output configuration for
each comparator, as well as the settings for interrupt
generation (see
The CMSTAT register
put results of the comparators. The bits in this register
are read-only.
EVPOL<1:0>
Registers
Interrupt
Polarity
Logic
CPOL
Logic
Register
(Register
COE
24-1).
24-2) provides the out-
DS39960D-page 367
CxOUT
CMPxIF
CMPxOUT
(CMSTAT<7:5>)