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Preliminary Data Sheet

AVR64EA28 AVR64EA32 AVR64EA48

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8 Memories
8.9 SIGROW - Signature Row
8.9.2 Signature Row Description

Introduction
Family Overview
Features
1 Block Diagram
2 Pinout
3 I/O Multiplexing and Considerations
4 Hardware Guidelines
5 Power Domains
6 Conventions
7 AVR® CPU
8 Memories
- 8.1 Overview
- 8.2 Memory Map
- 8.3 In-System Reprogrammable Flash Program Memory
- 8.4 SRAM Data Memory
- 8.5 EEPROM Data Memory
- 8.6 USERROW - User Row
- 8.7 LOCK - Memory Sections Access Protection
- 8.8 FUSE - Configuration and User Fuses
- 8.9 SIGROW - Signature Row
  - 8.9.1 Signature Row Summary
  - 8.9.2 Signature Row Description
    - 8.9.2.1 Device ID n
      Device ID n
    - 8.9.2.2 Temperature Sensor Calibration n
      Temperature Sensor Calibration n
    - 8.9.2.3 Serial Number Byte n
      Serial Number Byte n
- 8.10 I/O Memory
9 GPR - General Purpose Registers
10 Peripherals and Architecture
11 NVMCTRL - Nonvolatile Memory Controller
12 CLKCTRL - Clock Controller
13 SLPCTRL - Sleep Controller
14 RSTCTRL - Reset Controller
15 CPUINT - CPU Interrupt Controller
16 EVSYS - Event System
17 PORTMUX - Port Multiplexer
18 PORT - I/O Pin Configuration
19 BOD - Brown-out Detector
20 VREF - Voltage Reference
21 WDT - Watchdog Timer
22 TCA - 16-bit Timer/Counter Type A
23 TCB - 16-Bit Timer/Counter Type B
24 RTC - Real-Time Counter
25 USART - Universal Synchronous and Asynchronous Receiver and Transmitter
26 SPI - Serial Peripheral Interface
27 TWI - Two-Wire Interface
28 CRCSCAN - Cyclic Redundancy Check Memory Scan
29 CCL - Configurable Custom Logic
30 AC - Analog Comparator
31 ADC - Analog-to-Digital Converter
32 DAC - Digital-to-Analog Converter
33 UPDI - Unified Program and Debug Interface
34 Instruction Set Summary
35 Electrical Characteristics
36 Characteristics Graphs
37 Ordering Information
38 Package Drawings
39 Data Sheet Revision History
Microchip Information

8.9.2 Signature Row Description

The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.

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