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부품번호 | ATmega64A 기능 |
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기능 | low-power CMOS 8-bit microcontroller | ||
제조업체 | ATMEL Corporation | ||
로고 | |||
전체 30 페이지수
ATmega64A
ATmega64A
DATASHEET COMPLETE
Introduction
The Atmel® ATmega64A is a low-power CMOS 8-bit microcontroller based
on the AVR® enhanced RISC architecture. By executing powerful instructions
in a single clock cycle, the ATmega64A achieves throughputs close to
1MIPS per MHz. This empowers system designer to optimize the device for
power consumption versus processing speed.
Features
• High-performance, Low-power Atmel AVR 8-bit Microcontroller
• Advanced RISC Architecture
– 130 Powerful Instructions - Most Single-clock Cycle Execution
– 32 × 8 General Purpose Working Registers + Peripheral Control
Registers
– Fully Static Operation
– Up to 16MIPS Throughput at 16MHz
– On-chip 2-cycle Multiplier
• High Endurance Non-volatile Memory segments
– 64Kbytes of In-System Self-programmable Flash program
memory
– 2Kbytes EEPROM
– 4Kbytes Internal SRAM
– Write/Erase cycles: 10,000 Flash/100,000 EEPROM
– Data retention: 20 years at 85°C/100 years at 25°C(1)
– Optional Boot Code Section with Independent Lock Bits
• In-System Programming by On-chip Boot Program
• True Read-While-Write Operation
– Up to 64 Kbytes Optional External Memory Space
– Programming Lock for Software Security
– SPI Interface for In-System Programming
• JTAG (IEEE std. 1149.1 Compliant) Interface
– Boundary-scan Capabilities According to the JTAG Standard
– Extensive On-chip Debug Support
Atmel-8160E-ATmega64A_Datasheet_Complete-09/2015
13.3. Default Clock Source..................................................................................................................54
13.4. Crystal Oscillator........................................................................................................................ 54
13.5. Low-frequency Crystal Oscillator................................................................................................55
13.6. External RC Oscillator................................................................................................................ 56
13.7. Calibrated Internal RC Oscillator................................................................................................56
13.8. External Clock............................................................................................................................ 57
13.9. Timer/Counter Oscillator.............................................................................................................58
13.10. Register Description...................................................................................................................58
14. Power Management and Sleep Modes................................................................... 61
14.1. Sleep Modes...............................................................................................................................61
14.2. Idle Mode....................................................................................................................................62
14.3. ADC Noise Reduction Mode.......................................................................................................62
14.4. Power-down Mode......................................................................................................................62
14.5. Power-save Mode.......................................................................................................................62
14.6. Standby Mode............................................................................................................................ 63
14.7. Extended Standby Mode............................................................................................................ 63
14.8. Minimizing Power Consumption................................................................................................. 63
14.9. Register Description................................................................................................................... 65
15. System Control and Reset.......................................................................................67
15.1. Resetting the AVR...................................................................................................................... 67
15.2. Reset Sources............................................................................................................................67
15.3. Internal Voltage Reference.........................................................................................................71
15.4. Watchdog Timer......................................................................................................................... 71
15.5. Timed Sequences for Changing the Configuration of the Watchdog Timer............................... 72
15.6. Register Description................................................................................................................... 73
16. Interrupts................................................................................................................. 77
16.1. Interrupt Vectors in ATmega64A.................................................................................................77
16.2. Register Description................................................................................................................... 82
17. External Interrupts................................................................................................... 85
17.1. Register Description................................................................................................................... 85
18. I/O Ports.................................................................................................................. 92
18.1. Overview.....................................................................................................................................92
18.2. Ports as General Digital I/O........................................................................................................93
18.3. Alternate Port Functions.............................................................................................................96
18.4. Register Description..................................................................................................................111
19. Timer/Counter3, Timer/Counter2, and Timer/Counter1 Prescalers....................... 134
19.1. Overview...................................................................................................................................134
19.2. Internal Clock Source............................................................................................................... 134
19.3. Prescaler Reset........................................................................................................................134
19.4. External Clock Source..............................................................................................................134
19.5. Register Description................................................................................................................. 135
20. 16-bit Timer/Counter (Timer/Counter1 and Timer/Counter3).................................137
Atmel ATmega64A [DATASHEET]
Atmel-8160E-ATmega64A_Datasheet_Complete-09/2015
4
4페이지 29.13. Boundary-scan Chain...............................................................................................................344
29.14. ATmega64A Boundary-scan Order.......................................................................................... 354
29.15. Boundary-scan Description Language Files............................................................................ 363
29.16. Register Description.................................................................................................................363
30. BTLDR - Boot Loader Support – Read-While-Write Self-Programming................ 366
30.1. Features................................................................................................................................... 366
30.2. Overview...................................................................................................................................366
30.3. Application and Boot Loader Flash Sections............................................................................366
30.4. Read-While-Write and No Read-While-Write Flash Sections...................................................367
30.5. Boot Loader Lock Bits.............................................................................................................. 369
30.6. Entering the Boot Loader Program...........................................................................................370
30.7. Addressing the Flash During Self-Programming...................................................................... 371
30.8. Self-Programming the Flash.....................................................................................................372
30.9. Register Description................................................................................................................. 380
31. Memory Programming........................................................................................... 383
31.1. Program and Data Memory Lock Bits.......................................................................................383
31.2. Fuse Bits...................................................................................................................................384
31.3. Signature Bytes........................................................................................................................ 386
31.4. Calibration Byte........................................................................................................................ 386
31.5. Page Size................................................................................................................................. 387
31.6. Parallel Programming...............................................................................................................387
31.7. Parallel Programming Parameters, Pin Mapping, and Commands.......................................... 394
31.8. Serial Downloading...................................................................................................................396
31.9. Serial Programming Pin Mapping.............................................................................................396
31.10. Programming Via the JTAG Interface.......................................................................................400
32. Electrical Characteristics – TA = -40°C to 85°C.....................................................415
32.1. DC Characteristics....................................................................................................................415
32.2. Speed Grades.......................................................................................................................... 417
32.3. Clock Characteristics................................................................................................................417
32.4. System and Reset Characteristics........................................................................................... 418
32.5. Two-wire Serial Interface Characteristics................................................................................. 419
32.6. Parallel Programming Characteristics...................................................................................... 421
32.7. SPI Timing Characteristics....................................................................................................... 422
32.8. ADC Characteristics................................................................................................................. 424
32.9. External Data Memory Timing.................................................................................................. 427
33. Electrical Characteristics – TA = -40°C to 105°C...................................................433
33.1. DC Characteristics....................................................................................................................433
34. Typical Characteristics – TA = -40°C to 85°C........................................................ 436
34.1. Active Supply Current...............................................................................................................436
34.2. Idle Supply Current...................................................................................................................440
34.3. Power-Down Supply Current....................................................................................................443
34.4. Power-Save Supply Current.....................................................................................................444
34.5. Standby Supply Current........................................................................................................... 445
34.6. Pin Pull-up................................................................................................................................ 446
Atmel ATmega64A [DATASHEET]
Atmel-8160E-ATmega64A_Datasheet_Complete-09/2015
7
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부품번호 | 상세설명 및 기능 | 제조사 |
ATmega64 | 8-bit AVR Microcontroller with 64K Bytes In-System Programmable Flash | ATMEL Corporation |
ATMEGA640 | 8-BIT Microcontroller | ATMEL Corporation |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |