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5-Volt Motor Control MCU
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38
Analog Comparators (AC)
38.6
Functional Description
5-Volt, 128-KB Flash, 16-KB SRAM with Advanced Analog
1
Configuration Summary
2
Ordering Information
3
Block Diagram
4
Pinout and Packaging
5
Signal Description
6
Power Supply and Start-Up Considerations
7
Product Mapping
8
Memories
9
Processor and Architecture
10
Peripherals Configuration Summary
11
Clock System
12
Generic Clock Controller (GCLK)
13
Main Clock (MCLK)
14
Oscillators Controller (OSCCTRL)
15
32.768 kHz Oscillators Controller (OSC32KCTRL)
16
Power Manager (PM)
17
Supply Controller (SUPC)
18
Reset Controller (RSTC)
19
Peripheral Access Controller (PAC)
20
Device Service Unit (DSU)
21
Divide and Square Root Accelerator (DIVAS)
22
Watchdog Timer (WDT)
23
Real-Time Counter (RTC)
24
Direct Memory Access Controller (DMAC)
25
External Interrupt Controller (EIC)
26
Nonvolatile Memory Controller (NVMCTRL)
27
I/O Pin Controller (PORT)
28
Event System (EVSYS)
29
Serial Communication Interface (SERCOM)
30
SERCOM Synchronous and Asynchronous Receiver and Transmitter (SERCOM USART)
31
SERCOM Serial Peripheral Interface (SERCOM SPI)
32
SERCOM Inter-Integrated Circuit (SERCOM I
2
C)
33
Timer Counter (TC)
34
Timer/Counter for Control (TCC) Applications
35
Configurable Custom Logic (CCL)
36
Analog-to-Digital Converter (ADC)
37
Sigma-Delta Analog-to-Digital Converter (SDADC)
38
Analog Comparators (AC)
38.1
Overview
38.2
Features
38.3
Block Diagram
38.4
Signal Description
38.5
Peripheral Dependencies
38.6
Functional Description
38.6.1
Principle of Operation
38.6.2
Basic Operation
38.6.3
Selecting Comparator Inputs
38.6.4
Window Operation
38.6.5
VDD Scaler
38.6.6
Input Hysteresis
38.6.7
Propagation Delay vs. Power Consumption
38.6.8
Filtering
38.6.9
Comparator Output
38.6.10
Offset Compensation
38.6.11
Interrupts
38.6.12
Events
38.6.13
Sleep Mode Operation
38.6.14
Synchronization
38.7
Register Summary
39
Digital-to-Analog Converter (DAC)
40
Temperature Sensor (TSENS)
41
Frequency Meter (FREQM)
42
Position Decoder (PDEC)
43
Electrical Characteristics 85℃
44
Electrical Characteristics 125°C
45
Packaging Information
46
Schematic Checklist
47
Appendix
48
Revision History
The Microchip Website
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Microchip Devices Code Protection Feature
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Trademarks
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38.6 Functional Description
