PIC12F1822-I/MF Microchip Technology, PIC12F1822-I/MF Datasheet - Page 159

• Manufacturer Part Number: PIC12F1822-I/MF
• Description: IC, 8BIT MCU, PIC12, 32MHZ, DFN-8
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 12Fr

Specifications of PIC12F1822-I/MF

• Controller Family/series: PIC12
• No. Of I/o's: 6
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 128Byte
• Cpu Speed: 32MHz
• No. Of Timers: 3
• Core Size: 8 Bit
• Program Memory Size: 3.5KB
• Core Processor: PIC
• Speed: 32MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 6
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-DFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

18.0
Comparators are used to interface analog circuits to a
digital circuit by comparing two analog voltages and
providing a digital indication of their relative magnitudes.
Comparators are very useful mixed signal building
blocks because they provide analog functionality
independent of program execution. The analog
comparator module includes the following features:
• Independent comparator control
• Programmable input selection
• Comparator output is available internally/externally
• Programmable output polarity
• Interrupt-on-change
• Wake-up from Sleep
• Programmable Speed/Power optimization
• PWM shutdown
• Programmable and fixed voltage reference
18.1
A single comparator is shown in Figure 18-1 along with
the relationship between the analog input levels and
the digital output. When the analog voltage at V
less than the analog voltage at V
comparator is a digital low level. When the analog
voltage at V
V
The PIC12F/LF1822 devices contain one comparator,
while the PIC16F/LF1823 devices contain two.
 2010 Microchip Technology Inc.
IN
-, the output of the comparator is a digital high level.
COMPARATOR MODULE
Comparator Overview
IN
+ is greater than the analog voltage at
IN
-, the output of the
PIC12F/LF1822/16F/LF1823
IN
+ is
Preliminary
FIGURE 18-1:
Output
Note:
V
V
V
V
IN
IN
IN
IN
+
-
-
+
The black areas of the output of the
comparator represents the uncertainty
due to input offsets and response time.
+
–
SINGLE COMPARATOR
DS41413A-page 159
Output