ATmega128A Atmel Corporation, ATmega128A Datasheet - Page 89

• Manufacturer Part Number: ATmega128A
• Manufacturer: Atmel Corporation

Specifications of ATmega128A

• Flash (kbytes): 128 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 53
• Ext Interrupts: 8
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 4
• Eeprom (bytes): 4096
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 4
• Output Compare Channels: 8
• Input Capture Channels: 2
• Pwm Channels: 7
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

12.4.17
12.4.18
12.4.19
12.4.20
12.4.21
12.4.22
8151H–AVR–02/11
PORTF - Port F Data Register
DDRF - Port F Data Direction Register
PINF - Port F Input Pins Address
PORTG - Port G Data Register
DDRG - Port G Data Direction Register
PING - Port G Input Pins Address
Note that PORTF and DDRF Registers are not available in ATmega103 compatibility mode
where Port F serves as digital input only.
Note that PORTG, DDRG, and PING are not available in ATmega103 compatibility mode. In the
ATmega103 compatibility mode Port G serves its alternate functions only (TOSC1, TOSC2, WR,
RD and ALE).
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
PORTF7
PINF7
DDF7
R/W
R/W
N/A
R
R
7
–
0
R
R
7
0
7
0
7
7
–
0
7
–
0
PORTF6
PINF6
DDF6
R/W
R/W
N/A
R
6
–
0
R
R
R
6
0
6
0
6
6
–
0
6
–
0
PORTF5
PINF5
DDF5
R/W
R/W
N/A
R
5
–
0
R
R
R
5
0
5
5
–
0
5
0
5
–
0
PORTG4
PORTF4
PINF4
PING4
DDG4
DDF4
R/W
R/W
R/W
R/W
N/A
N/A
4
0
R
4
R
4
0
4
4
0
4
0
PORTG3
PORTF3
PING3
PINF3
DDG3
DDF3
R/W
R/W
R/W
R/W
N/A
N/A
R
3
0
3
R
3
0
3
3
0
3
0
PORTG2
PORTF2
PING2
PINF2
DDG2
DDF2
R/W
R/W
N/A
R/W
R/W
N/A
R
2
0
2
R
2
0
2
2
0
2
0
PORTG1
PORTF1
PINF1
PING1
ATmega128A
DDG1
DDF1
R/W
R/W
N/A
R/W
R/W
N/A
R
1
1
0
R
1
0
1
1
0
1
0
PORTG0
PORTF0
PINF0
PING0
DDG0
DDF0
R/W
N/A
R/W
R/W
R/W
N/A
R
0
R
0
0
0
0
0
0
0
0
0
PORTG
PORTF
DDRG
DDRF
PINF
PING
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