ATmega644PA datasheet(329/468 Pages) ATMEL

329 / 468 page

329

8152G–AVR–11/09

ATmega164PA/324PA/644PA/1284P

Notes:

1. "Max" means the highest value where the pin is guaranteed to be read as low

2. "Min" means the lowest value where the pin is guaranteed to be read as high

3. Although each I/O port can sink more than the test conditions (20mA at VCC = 5V, 10mA at VCC = 3V) under steady state

conditions (non-transient), the following must be observed:

1.)The sum of all IOL, for ports PB0-PB7, XTAL2, PD0-PD7 should not exceed 100 mA.

2.)The sum of all IOL, for ports PA0-PA3, PC0-PC7 should not exceed 100 mA.

If IOL exceeds the test condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greater

than the listed test condition.

4. Although each I/O port can source more than the test conditions (20mA at VCC = 5V, 10mA at VCC = 3V) under steady

state conditions (non-transient), the following must be observed:

1.)The sum of all IOH, for ports PB0-PB7, XTAL2, PD0-PD7 should not exceed 100 mA.

2.)The sum of all IOH, for ports PA0-PA3, PC0-PC7 should not exceed 100 mA.

If IOH exceeds the test condition, VOH may exceed the related specification. Pins are not guaranteed to source current

greater than the listed test condition.

5. These numbers are valid for ATmega164PA and ATmega324PA.

VACIO

Analog Comparator

Input Offset Voltage

VCC = 5V

Vin = VCC/2

<10

IACLK

Analog Comparator

Input Leakage Current

VCC = 5V

Vin = VCC/2

-50

tACID

Analog Comparator

Propagation Delay

VCC = 2.7V

VCC = 4.0V

750

500

Table 27-1.

A = -40°C to 85°C, VCC = 1.8V to 5.5V (unless otherwise noted) (Continued)

Symbol

Parameter

Condition

Min.(5)

Typ.

Max.(5)

Units

ATmega644PA Datasheet(PDF) 329 Page - ATMEL Corporation

ATmega644PA Datasheet(HTML) 329 Page - ATMEL Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL