PIC18F1230-E/P Microchip Technology, PIC18F1230-E/P Datasheet - Page 179

• Manufacturer Part Number: PIC18F1230-E/P
• Description: Microcontroller
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F1230-E/P

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 18-DIP (0.300", 7.62mm)
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: EUSART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 16
• Number Of Timers: 2
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 4 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

17.0
The analog comparator module contains three
comparators. The inputs can be selected from the
analog inputs multiplexed with pins RA0, RB2 and
RB3, as well as the on-chip voltage reference (see
REGISTER 17-1:
 2009 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5
bit 4-3
bit 2
bit 1
bit 0
C2OUT
R-0
COMPARATOR MODULE
C2OUT: Comparator 2 Output bit
1 = C2 V
0 = C2 V
C1OUT: Comparator 1 Output bit
1 = C1 V
0 = C1 V
C0OUT: Comparator 0 Output bit
1 = C0 V
0 = C0 V
Unimplemented: Read as ‘0’
CMEN2: Comparator 2 Enable bit
1 = Comparator 2 is enabled
0 = Comparator 2 is disabled
CMEN1: Comparator 1 Enable bit
1 = Comparator 1 is enabled
0 = Comparator 1 is disabled
CMEN0: Comparator 0 Enable bit
1 = Comparator 0 is enabled
0 = Comparator 0 is disabled
C1OUT
R-0
CMCON: COMPARATOR CONTROL REGISTER
IN
IN
IN
IN
IN
IN
+ > C2 V
+ < C2 V
+ > C1 V
+ < C1 V
+ > C0 V
+ < C0 V
W = Writable bit
‘1’ = Bit is set
C0OUT
R-0
IN
IN
IN
IN
IN
IN
- (CV
- (CV
- (CV
- (CV
- (CV
- (CV
REF
REF
REF
REF
REF
REF
)
)
)
)-
)
)
U-0
—
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
Section 18.0
Module”). The digital outputs are not available at the
pin level and can only be read through the control
register, CMCON (Register 17-1). CMCON also selects
the comparator input.
U-0
—
PIC18F1230/1330
CMEN2
R/W-0
“Comparator
x = Bit is unknown
CMEN1
R/W-0
Voltage
DS39758D-page 179
CMEN0
Reference
R/W-0
bit 0