ATMEGA1281-16AU Atmel, ATMEGA1281-16AU Datasheet - Page 90

• Manufacturer Part Number: ATMEGA1281-16AU
• Description: IC MCU AVR 128K FLASH 64-TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA1281-16AU

• 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-TQFP, 64-VQFP
• Cpu Family: ATmega
• Device Core: AVR
• Device Core Size: 8b
• Frequency (max): 16MHz
• Interface Type: 2-Wire/SPI/USART
• Total Internal Ram Size: 8KB
• # I/os (max): 54
• Number Of Timers - General Purpose: 6
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 64
• Package Type: TQFP
• Processor Series: ATMEGA128x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 8 KB
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 54
• Number Of Timers: 6
• Operating Supply Voltage: 2.7 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
• Controller Family/series: AVR MEGA
• No. Of I/o's: 54
• Eeprom Memory Size: 4KB
• Ram Memory Size: 8KB
• Cpu Speed: 16MHz
• Rohs Compliant: Yes
• For Use With: ATSTK600-TQFP64 - STK600 SOCKET/ADAPTER 64-TQFPATAVRDB101 - MODULE DISPLAY LCD/RGB BACKLIGHT770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1005 - ISP 4PORT FOR ATMEL AVR MCU JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

12.3.7
2549M–AVR–09/10
Alternate Functions of Port G
Table 12-19. Overriding Signals for Alternate Functions in PF7:PF4
Table 12-20. Overriding Signals for Alternate Functions in PF3:PF0
The Port G alternate pin configuration is as follows:
Table 12-21. Port G Pins Alternate Functions
DIEOE
DIEOV
Signal
PUOE
PUOV
DDOE
DDOV
Name
PVOE
PVOV
AIO
Signal Name
DI
Port Pin
DIEOE
DIEOV
DDOE
PUOE
PUOV
DDOV
PVOE
PVOV
PG5
PG4
PG3
PG2
PG1
PG0
AIO
DI
TDI/ADC7 INPUT
PF7/ADC7/TDI
JTAGEN
JTAGEN
JTAGEN
1
0
0
0
0
–
ADC3 INPUT
PF3/ADC3
OC0B (Output Compare and PWM Output B for Timer/Counter0)
0
0
0
0
0
0
0
0
–
ATmega640/1280/1281/2560/2561
PF6/ADC6/TDO
ALE (Address Latch Enable to external memory)
ADC6 INPUT
SHIFT_IR +
SHIFT_DR
JTAGEN
JTAGEN
JTAGEN
JTAGEN
TOSC1 (RTC Oscillator Timer/Counter2)
TOSC2 (RTC Oscillator Timer/Counter2)
WR (Write strobe to external memory)
RD (Read strobe to external memory)
TDO
0
0
–
ADC2 INPUT
PF2/ADC2
0
0
0
0
0
0
0
0
–
Alternate Function
TMS/ADC5 INPUT
PF5/ADC5/TMS
JTAGEN
JTAGEN
JTAGEN
ADC1 INPUT
PF1/ADC1
1
0
0
0
0
–
0
0
0
0
0
0
0
0
–
TCK/ADC4 INPUT
PF4/ADC4/TCK
ADC0 INPUT
PF0/ADC0
JTAGEN
JTAGEN
JTAGEN
1
0
0
0
0
–
0
0
0
0
0
0
0
0
–
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