ATMEGA128A-MU Atmel, ATMEGA128A-MU Datasheet - Page 380

• Manufacturer Part Number: ATMEGA128A-MU
• Description: MCU 8BIT 128K ISP FLASH 64-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA128A-MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 128KB (64K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-MLF®, 64-QFN
• Processor Series: ATMEGA128x
• Core: AVR8
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Controller Family/series: AVR MEGA
• No. Of I/o's: 53
• Eeprom Memory Size: 4KB
• Ram Memory Size: 4KB
• Cpu Speed: 16MHz
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ii
ATmega128A
9
10 System Control and Reset .................................................................... 51
11 Interrupts ................................................................................................ 59
12 I/O Ports .................................................................................................. 65
13 External Interrupts ................................................................................. 90
14 8-bit Timer/Counter0 with PWM and Asynchronous Operation ........ 93
Power Management and Sleep Modes ................................................. 46
8.8
8.9
8.10
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
9.9
9.10
10.1
10.2
10.3
10.4
10.5
10.6
11.1
11.2
12.1
12.2
12.3
12.4
13.1
14.1
14.2
External Clock .................................................................................................43
Timer/Counter Oscillator ..................................................................................44
Register Description ........................................................................................44
Overview ..........................................................................................................46
Sleep modes ....................................................................................................46
Idle Mode .........................................................................................................47
ADC Noise Reduction Mode ............................................................................47
Power-down Mode ...........................................................................................47
Power-save Mode ............................................................................................47
Standby Mode .................................................................................................48
Extended Standby Mode .................................................................................48
Minimizing Power Consumption ......................................................................48
Register Description ........................................................................................50
Resetting the AVR ...........................................................................................51
Reset Sources .................................................................................................51
Internal Voltage Reference ..............................................................................54
Watchdog Timer ..............................................................................................55
Timed Sequences for Changing the Configuration of the Watchdog Timer ....55
Register Description ........................................................................................56
Interrupt Vectors in ATmega128A ...................................................................59
Register Description ........................................................................................63
Introduction ......................................................................................................65
Ports as General Digital I/O .............................................................................66
Alternate Port Functions ..................................................................................71
Register Description ........................................................................................86
Register Description ........................................................................................90
Features ..........................................................................................................93
Overview ..........................................................................................................93
8151H–AVR–02/11