ATMEGA1281-16MU Atmel, ATMEGA1281-16MU Datasheet - Page 189
ATMEGA1281-16MU
Manufacturer Part Number
ATMEGA1281-16MU
Description
IC MCU AVR 128K FLASH 64-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA1281-16MU
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
54
Program Memory Size
128KB (64K x 16)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
8K 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
Data Bus Width
8 bit
Data Ram Size
8 KB
Interface Type
2-Wire, SPI, UART
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
54
Number Of Timers
6
Operating Supply Voltage
4.5 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRRZ541, ATAVRRAVEN, ATAVRRZRAVEN, ATAVRRZUSBSTICK, ATAVRISP2, ATAVRRZ201
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 channel
For Use With
ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-TQFPATAVRDB101 - MODULE DISPLAY LCD/RGB BACKLIGHT770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 189 of 444
- Download datasheet (10Mb)
2549M–AVR–09/10
Table 19-7
rect PWM mode.
Table 19-7.
Note:
• Bits 3, 2 – Res: Reserved Bits
These bits are reserved bits and will always read as zero.
• Bits 1:0 – WGM21:0: Waveform Generation Mode
Combined with the WGM22 bit found in the TCCR2B Register, these bits control the counting
sequence of the counter, the source for maximum (TOP) counter value, and what type of wave-
form generation to be used, see
unit are: Normal mode (counter), Clear Timer on Compare Match (CTC) mode, and two types of
Pulse Width Modulation (PWM) modes (see
Table 19-8.
Notes:
Mode
COM2B1
0
1
2
3
4
5
6
7
0
0
1
1
1. A special case occurs when OCR2B equals TOP and COM2B1 is set. In this case, the Com-
1. MAX= 0xFF.
2. BOTTOM= 0x00.
WGM2
shows the COM2B1:0 bit functionality when the WGM22:0 bits are set to phase cor-
pare Match is ignored, but the set or clear is done at TOP. See
page 179
0
0
0
0
1
1
1
1
Compare Output Mode, Phase Correct PWM Mode
Waveform Generation Mode Bit Description
COM2B0
for more details.
WGM1
0
1
0
1
0
0
1
1
0
0
1
1
WGM0
Table
ATmega640/1280/1281/2560/2561
0
1
0
1
0
1
0
1
Clear OC2B on Compare Match when down-counting.
19-8. Modes of operation supported by the Timer/Counter
Set OC2B on Compare Match when down-counting.
Clear OC2B on Compare Match when up-counting.
Set OC2B on Compare Match when up-counting.
Timer/Counter
Normal port operation, OC2B disconnected.
PWM, Phase
PWM, Phase
Operation
Fast PWM
Fast PWM
Reserved
Reserved
“Modes of Operation” on page
Mode of
Normal
Correct
Correct
CTC
Description
Reserved.
OCRA
OCRA
OCRA
0xFF
0xFF
0xFF
TOP
–
–
(1)
“Phase Correct PWM Mode” on
Update of
Immediate
Immediate
BOTTOM
BOTTOM
OCRx at
TOP
TOP
–
–
176).
Set on
TOV Flag
BOTTOM
BOTTOM
MAX
MAX
MAX
TOP
–
–
(1)(2)
189
Related parts for ATMEGA1281-16MU
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Microcontroller with 128K bytes In-system programmable flash, 8 MHz, power supply =2.7 - 5.5V
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
IC AVR MCU 128K 16MHZ 5V 64TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 128K 16MHZ 5V 64-QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 128K 16MHZ COM 64-QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 128K 16MHZ 64-TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 128K 16MHZ 64-TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 128K 16MHZ IND 64-QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 128KB FLASH 16MHZ 64TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 128KB FLASH 16MHZ 64QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 128KB FLASH 16MHZ 64TQFP
Manufacturer:
Atmel
Datasheet: