ATMEGA128A-AN Atmel, ATMEGA128A-AN Datasheet - Page 108

• Manufacturer Part Number: ATMEGA128A-AN
• Description: IC MCU AVR 128K FLASH 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA128A-AN

• 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-TQFP
• Core: AVR8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8151H–AVR–02/11
Table 14-4
mode.
Table 14-4.
Note:
Table 14-5
rect PWM mode.
Table 14-5.
Note:
• Bit 2:0 – CS02:0: Clock Select
The three clock select bits select the clock source to be used by the Timer/Counter, see
14-6.
COM01
COM01
0
0
1
1
0
0
1
1
1. A special case occurs when OCR0 equals TOP and COM01 is set. In this case, the compare
1. A special case occurs when OCR0 equals TOP and COM01 is set. In this case, the compare
match is ignored, but the set or clear is done at BOTTOM. See
for more details.
match is ignored, but the set or clear is done at TOP. See
101
shows the COM01:0 bit functionality when the WGM01:0 bits are set to phase cor-
shows the COM01:0 bit functionality when the WGM01:0 bits are set to fast PWM
COM00
Compare Output Mode, Fast PWM Mode
Compare Output Mode, Phase Correct PWM Mode
for more details.
0
1
0
1
COM00
0
1
0
1
Description
Normal port operation, OC0 disconnected.
Reserved
Clear OC0 on compare match when up-counting. Set OC0 on compare match
when downcounting.
Set OC0 on compare match when up-counting. Clear OC0 on compare match
when downcounting.
Description
Normal port operation, OC0 disconnected.
Reserved
Clear OC0 on compare match, set OC0 at BOTTOM,
(non-inverting mode)
Set OC0 on compare match, clear OC0 at BOTTOM,
(inverting mode)
(1)
“Phase Correct PWM Mode” on page
(1)
“Fast PWM Mode” on page 99
ATmega128A
Table
108