ATmega128A Atmel Corporation, ATmega128A Datasheet - Page 356

• 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

8151H–AVR–02/11
Figure 28-38. 2MHz RC Oscillator Frequency vs. Osccal Value
Figure 28-39. Calibrated 4MHz RC Oscillator Frequency vs. Temperature
3,5
2,5
1,5
0,5
4.2
4.1
3.9
3.8
3.7
3.6
3.5
4
3
2
1
0
4
-60
0
16
-40
32
48
-20
64
80
96
0
112 128 144 160 176 192 208 224 240 256
OSCCAL (X1)
Temperature (°C)
20
40
60
80
ATmega128A
5.5 V
5.0 V
4.5 V
4.0 V
3.3 V
2.7 V
100
-40 °C
25 °C
85 °C
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