PIC18F45K22-E/P Microchip Technology, PIC18F45K22-E/P Datasheet - Page 305

• Manufacturer Part Number: PIC18F45K22-E/P
• Description: 32KB, Flash, 1536bytes-RAM,8-bit Family 40 PDIP .600in TUBE
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F45K22-E/P

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 30x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• 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.
The comparators are very useful mixed signal building
blocks because they provide analog functionality
independent of the 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
• Selectable Hysteresis
18.1
A single comparator is shown in
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
 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
Figure 18-1
IN
-, the output of the
along with
IN
+ is
Preliminary
FIGURE 18-1:
Output
Note:
PIC18(L)F2X/4XK22
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
DS41412D-page 305
Output