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32-bit ARM Cortex-M0+ Ultra-Low-Power MCU family with Peripheral Touch Controller (PTC), Segment LCD Controller, Advanced Analog, USB and AES
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ATSAML22G16A
ATSAML22G17A
ATSAML22G18A
ATSAML22J16A
ATSAML22J17A
ATSAML22J18A
ATSAML22N16A
ATSAML22N17A
ATSAML22N18A
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47
Schematic Checklist
Features
1
Configuration Summary
2
Ordering Information
3
Block Diagram
4
Pinout
5
Signal Descriptions List
6
I/O Multiplexing and Considerations
7
Power Supply and Start-Up Considerations
8
Product Mapping
9
Memories
10
Processor and Architecture
11
PAC - Peripheral Access Controller
12
Peripherals Configuration Summary
13
DSU - Device Service Unit
14
Clock System
15
GCLK - Generic Clock Controller
16
MCLK – Main Clock
17
FREQM - Frequency Meter
18
RSTC – Reset Controller
19
PM - Power Manager
20
OSCCTRL – Oscillators Controller
21
OSC32KCTRL – 32.768 kHz Oscillators Controller
22
SUPC – Supply Controller
23
WDT – Watchdog Timer
24
RTC – Real-Time Counter
25
DMAC – Direct Memory Access Controller
26
EIC – External Interrupt Controller
27
NVMCTRL – Non-Volatile Memory Controller
28
PORT - I/O Pin Controller
29
EVSYS – Event System
30
SERCOM – Serial Communication Interface
31
SERCOM USART – SERCOM Universal Synchronous and Asynchronous Receiver and Transmitter
32
SERCOM SPI – SERCOM Serial Peripheral Interface
33
SERCOM I
2
C – SERCOM Inter-Integrated Circuit
34
TC – Timer/Counter
35
TCC – Timer/Counter for Control Applications
36
TRNG – True Random Number Generator
37
AES – Advanced Encryption Standard
38
USB – Universal Serial Bus
39
CCL – Configurable Custom Logic
40
ADC - Analog-to-Digital Converter
41
AC – Analog Comparators
42
SLCD - Segment Liquid Crystal Display Controller
43
PTC - Peripheral Touch Controller
44
Electrical Characteristics
45
Typical Characteristics
46
Packaging Information
47
Schematic Checklist
47.1
Introduction
47.2
Power Supply
47.3
External Analog Reference Connections
47.4
External Reset Circuit
47.5
Unused or Unconnected Pins
47.6
Clocks and Crystal Oscillators
47.7
Programming and Debug Ports
47.8
USB Interface
47.9
LCD
47.10
SERCOM I
2
C Pins
47.11
Pin Characteristics
47.12
Reference Schematic
48
Conventions
49
Acronyms and Abbreviations
50
Datasheet Revision History
Microchip Information
47 Schematic Checklist