ATmega644PA datasheet(340/468 Pages) ATMEL

Part #	ATmega644PA

Description	8-bit Microcontroller with 16/32/64/128K Bytes In-Sytem Programmable Flash

PDF	468 Pages

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Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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340 / 468 page

340

8152G–AVR–11/09

ATmega164PA/324PA/644PA/1284P

Note:

1. Values are guidelines only.

Gain Error

Gain = 1x

CC =5 V, VREF = 4V

ADC clock = 200 kHz

LSB

Gain = 10x

CC =5 V, VREF = 4V

ADC clock = 200 kHz

Gain = 200x

VCC =5 V, VREF = 4V

ADC clock = 200 kHz

1.5

Offset Error

Gain = 1x

VCC =5 V, VREF = 4V

ADC clock = 200 kHz

-1

Gain = 10x

CC =5 V, VREF = 4V

ADC clock = 200 kHz

-1

Gain = 200x

VCC =5 V, VREF = 4V

ADC clock = 200 kHz

Conversion Time

260

µs

Clock Frequency

1000

kHz

AVCC

Analog Supply Voltage

CC -

0.3

CC +

0.3

VREF

Reference Voltage

2.0

AVCC -

0.5

Input Differential Voltage

AVCC

ADC Conversion Output

-511

511

LSB

Input Bandwidth

kHz

INT1

Internal Voltage Reference

1.1V

1.0

1.1

1.2

INT2

Internal Voltage Reference

2.56V

2.33

2.56

2.79

RREF

Reference Input Resistance

Table 27-14. ADC Characteristics, Differential Channels (Continued)

Symbol

Parameter

Condition

Min(1)

Typ(1)

Max(1)

Units

ATmega644PA Datasheet(PDF) 340 Page - ATMEL Corporation

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