ATmega64A Atmel Corporation, ATmega64A Datasheet - Page 270

• Manufacturer Part Number: ATmega64A
• Manufacturer: Atmel Corporation

Specifications of ATmega64A

• Flash (kbytes): 64 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): 2048
• 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

8160C–AVR–07/09
Table 25-5.
Signal
Name
COMP
ACLK
ACTEN
ADCBGEN
ADCEN
AMPEN
DAC_9
DAC_8
DAC_7
DAC_6
DAC_5
DAC_4
DAC_3
DAC_2
DAC_1
DAC_0
EXTCH
G10
G20
Boundary-scan Signals for the ADC
Output
Input
Input
Input
Input
Input
Input
Input
Input
Direction
as Seen
from the
ADC
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Description
Comparator Output
Clock signal to gain
stages implemented
as Switch-cap filters
Enable path from gain
stages to the
Comparator
Enable Band-gap
reference as negative
input to Comparator
Power-on signal to the
ADC
Power-on signal to the
gain stages
Bit nine of digital value
to DAC
Bit eight of digital
value to DAC
Bit seven of digital
value to DAC
Bit six of digital value
to DAC
Bit five of digital value
to DAC
Bit four of digital value
to DAC
Bit three of digital
value to DAC
Bit two of digital value
to DAC
Bit 1 of digital value to
DAC
Bit 0 of digital value to
DAC
Connect ADC
channels 0 - 3 to
bypass path around
gain stages
Enable 10x gain
Enable 20x gain
(1)
Recommended
Input when not
in Use
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
Recommended Inputs
are Used, and CPU is
ATmega64A
Output Values when
not Using the ADC
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
0
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