Datasheet ATmega3209, ATmega4809 - 48-pin (Microchip) - 63
| 制造商 | Microchip |
| 描述 | megaAVR 0-series |
| 页数 / 页 | 68 / 63 — ATmega3209/4809 – 48-pin Data Sheet. Conventions. 8.1. Memory Size and … |
| 文件格式/大小 | PDF / 792 Kb |
| 文件语言 | 英语 |
ATmega3209/4809 – 48-pin Data Sheet. Conventions. 8.1. Memory Size and Type Table 8-1. Memory Size and Bit Rate. Symbol
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文件文字版本
ATmega3209/4809 – 48-pin Data Sheet Conventions 8. Conventions 8.1 Memory Size and Type Table 8-1. Memory Size and Bit Rate Symbol Description
KB kilobyte (210 = 1024) MB megabyte (220 = 1024*1024) GB gigabyte (230 = 1024*1024*1024) b bit (binary '0' or '1') B byte (8 bits) 1 kbit/s 1,000 bit/s rate (not 1,024 bit/s) 1 Mbit/s 1,000,000 bit/s rate 1 Gbit/s 1,000,000,000 bit/s rate word 16-bit
8.2 Frequency and Time Table 8-2. Frequency and Time Symbol Description
kHz 1 kHz = 103 Hz = 1,000 Hz KHz 1 KHz = 1,024 Hz, 32 KHz = 32,768 Hz MHz 1 MHz = 106 Hz = 1,000,000 Hz GHz 1 GHz = 109 Hz = 1,000,000,000 Hz s second ms millisecond µs microsecond ns nanosecond © 2018 Microchip Technology Inc.
Datasheet Preliminary
DS40002016A-page 63 Document Outline Introduction Features Table of Contents 1. Ordering Information 2. Block Diagram 3. Pinout 3.1. 48-pin QFN/TQFP 4. I/O Multiplexing and Considerations 4.1. Multiplexed Signals 5. Electrical Characteristics 5.1. Absolute Maximum Ratings 5.2. General Operating Ratings 5.3. Power Considerations 5.4. Power Consumption 5.5. Peripherals Power Consumption 5.6. BOD and POR Characteristics 5.7. External Reset Characteristics 5.8. Oscillators and Clocks 5.9. I/O Pin Characteristics 5.10. VREF 5.11. ADC 5.11.1. Internal Reference Characteristics 5.11.2. External Reference Characteristics 5.12. AC 5.13. UPDI Timing 6. Typical Characteristics 6.1. Power Consumption 6.1.1. Supply Currents in Active Mode 6.1.2. Supply Currents in Idle Mode 6.1.3. Supply Currents in Power-Down Mode 6.1.4. Supply Currents in Standby Mode 6.1.5. Power on Supply Currents 6.2. GPIO 6.3. VREF Characteristics 6.4. BOD Characteristics 6.5. ADC Characteristics 6.6. AC Characteristics 6.7. OSC20M Characteristics 6.8. OSCULP32K Characteristics 7. Package Drawings 7.1. 48 pin TQFP 8. Conventions 8.1. Memory Size and Type 8.2. Frequency and Time 9. Data Sheet Revision History 9.1. Rev. A - 02/2018 The Microchip Web Site Customer Change Notification Service Customer Support Product Identification System Microchip Devices Code Protection Feature Legal Notice Trademarks Quality Management System Certified by DNV Worldwide Sales and Service
KB kilobyte (210 = 1024) MB megabyte (220 = 1024*1024) GB gigabyte (230 = 1024*1024*1024) b bit (binary '0' or '1') B byte (8 bits) 1 kbit/s 1,000 bit/s rate (not 1,024 bit/s) 1 Mbit/s 1,000,000 bit/s rate 1 Gbit/s 1,000,000,000 bit/s rate word 16-bit
8.2 Frequency and Time Table 8-2. Frequency and Time Symbol Description
kHz 1 kHz = 103 Hz = 1,000 Hz KHz 1 KHz = 1,024 Hz, 32 KHz = 32,768 Hz MHz 1 MHz = 106 Hz = 1,000,000 Hz GHz 1 GHz = 109 Hz = 1,000,000,000 Hz s second ms millisecond µs microsecond ns nanosecond © 2018 Microchip Technology Inc.
Datasheet Preliminary
DS40002016A-page 63 Document Outline Introduction Features Table of Contents 1. Ordering Information 2. Block Diagram 3. Pinout 3.1. 48-pin QFN/TQFP 4. I/O Multiplexing and Considerations 4.1. Multiplexed Signals 5. Electrical Characteristics 5.1. Absolute Maximum Ratings 5.2. General Operating Ratings 5.3. Power Considerations 5.4. Power Consumption 5.5. Peripherals Power Consumption 5.6. BOD and POR Characteristics 5.7. External Reset Characteristics 5.8. Oscillators and Clocks 5.9. I/O Pin Characteristics 5.10. VREF 5.11. ADC 5.11.1. Internal Reference Characteristics 5.11.2. External Reference Characteristics 5.12. AC 5.13. UPDI Timing 6. Typical Characteristics 6.1. Power Consumption 6.1.1. Supply Currents in Active Mode 6.1.2. Supply Currents in Idle Mode 6.1.3. Supply Currents in Power-Down Mode 6.1.4. Supply Currents in Standby Mode 6.1.5. Power on Supply Currents 6.2. GPIO 6.3. VREF Characteristics 6.4. BOD Characteristics 6.5. ADC Characteristics 6.6. AC Characteristics 6.7. OSC20M Characteristics 6.8. OSCULP32K Characteristics 7. Package Drawings 7.1. 48 pin TQFP 8. Conventions 8.1. Memory Size and Type 8.2. Frequency and Time 9. Data Sheet Revision History 9.1. Rev. A - 02/2018 The Microchip Web Site Customer Change Notification Service Customer Support Product Identification System Microchip Devices Code Protection Feature Legal Notice Trademarks Quality Management System Certified by DNV Worldwide Sales and Service