ATmega64M1 Atmel Corporation, ATmega64M1 Datasheet - Page 250

• Manufacturer Part Number: ATmega64M1
• Manufacturer: Atmel Corporation

Specifications of ATmega64M1

• Flash (kbytes): 64 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 27
• Ext Interrupts: 27
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Uart: 1
• Can: 1
• Lin: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• Adc Resolution (bits): 10
• Adc Speed (ksps): 125
• Analog Comparators: 4
• Resistive Touch Screen: No
• Dac Channels: 1
• Dac Resolution (bits): 10
• Temp. Sensor: Yes
• 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: 2
• Output Compare Channels: 14
• Input Capture Channels: 1
• Pwm Channels: 10
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

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ATmega16M1/32M1/64M1
Table 21-12. Amplifier 2 Gain Selection
To ensure an accurate result, after the gain value has been changed, the amplifier input needs
to have a quite stable input value during at least 4 Amplifier synchronization clock periods.
• Bit 3 – AMPCMP2: Amplifier 2 - Comparator 2 connection
Set this bit to connect the amplifier 2 to the comparator 2 positive input. In this configuration the
comparator clock is adapted to the amplifier clock and AMP2TS2,AMP2TS1, AMP2TS0 bits
have no effect.
Clear this bit to normally use the Amplifier 2.
• Bit 2:0 – AMP2TS[2:0]: Amplifier 2 Clock Source Selection Bits
In accordance with the
for the amplifier 1. This clock source is necessary to start the conversion on the amplified
channel.
Table 21-13. AMP1 Clock Source Selection
AMP2TS[2:0]
AMP2G[1:0]
00
01
10
11
000
001
010
011
100
101
110
111
Table
21-13, these 3 bits select the event which will generate the clock
PSC Module 0 Synchronization Signal (PSS0)
PSC Module 1 Synchronization Signal (PSS1)
PSC Module 2 Synchronization Signal (PSS2)
Timer/Counter1 Compare Match B
Timer/Counter0 Compare Match
Timer/Counter0 Overflow
Timer/Counter1 Overflow
Clock Source
Description
ADC Clock/8
Gain 10
Gain 20
Gain 40
Gain 5
8209D–AVR–11/10