ATMEGA1281-16MU Atmel, ATMEGA1281-16MU Datasheet - Page 160
![IC MCU AVR 128K FLASH 64-QFN](/photos/12/13/121326/313-64-qfn_sml.jpg)
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: 160 of 444
- Download datasheet (10Mb)
16.11.5
16.11.6
16.11.7
16.11.8
2549M–AVR–09/10
TCCR1B – Timer/Counter 1 Control Register B
TCCR3B – Timer/Counter 3 Control Register B
TCCR4B – Timer/Counter 4 Control Register B
TCCR5B – Timer/Counter 5 Control Register B
Table 16-5
correct and frequency correct PWM mode.
Table 16-5.
Note:
• Bit 7 – ICNCn: Input Capture Noise Canceler
Setting this bit (to one) activates the Input Capture Noise Canceler. When the Noise Canceler is
activated, the input from the Input Capture Pin (ICPn) is filtered. The filter function requires four
successive equal valued samples of the ICPn pin for changing its output. The input capture is
therefore delayed by four Oscillator cycles when the noise canceler is enabled.
Bit
(0x81)
Read/Write
Initial Value
Bit
(0x91)
Read/Write
Initial Value
Bit
(0xA1)
Read/Write
Initial Value
Bit
(0x121)
Read/Write
Initial Value
COMnA1
COMnB1
COMnC1
0
0
1
1
A special case occurs when OCRnA/OCRnB/OCRnC equals TOP and
COMnA1/COMnB1//COMnC1 is set.
details.
shows the COMnx1:0 bit functionality when the WGMn3:0 bits are set to the phase
COMnA0
COMnB0
COMnC0
Compare Output Mode, Phase Correct and Phase and Frequency Correct PWM
ICNC1
ICNC3
ICNC4
ICNC5
R/W
R/W
R/W
R/W
7
0
7
0
7
0
7
0
0
1
0
1
ICES1
ICES4
ICES5
ICES3
R/W
R/W
R/W
R/W
6
0
6
0
6
0
6
0
disconnected (normal port operation). For all other WGM1 settings, normal
WGM13:0 =9 or 11: Toggle OC1A on Compare Match, OC1B and OC1C
Clear OCnA/OCnB/OCnC on compare match when up-counting. Set
Set OCnA/OCnB/OCnC on compare match when up-counting. Clear
ATmega640/1280/1281/2560/2561
OCnA/OCnB/OCnC on compare match when downcounting.
OCnA/OCnB/OCnC on compare match when downcounting.
Normal port operation, OCnA/OCnB/OCnC disconnected.
R
R
R
R
5
–
0
5
–
0
5
–
0
5
–
0
port operation, OC1A/OC1B/OC1C disconnected.
See “Phase Correct PWM Mode” on page 152.
WGM13
WGM33
WGM43
WGM53
R/W
R/W
R/W
R/W
4
0
0
4
0
4
0
4
WGM12
WGM42
WGM52
WGM32
R/W
R/W
R/W
R/W
3
0
3
0
3
0
3
0
Description
CS42
CS52
CS12
CS32
R/W
R/W
R/W
R/W
2
0
2
0
2
0
2
0
CS11
CS41
CS51
CS31
R/W
R/W
R/W
R/W
1
0
1
0
1
0
1
0
CS10
CS40
CS50
CS30
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
0
for more
TCCR1B
TCCR4B
TCCR5B
TCCR3B
160
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