ATMEGA6490A-AU Atmel, ATMEGA6490A-AU Datasheet - Page 360
ATMEGA6490A-AU
Manufacturer Part Number
ATMEGA6490A-AU
Description
IC MCU AVR 64K FLASH 100TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA6490A-AU
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
69
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TFQFP
Processor Series
ATmega
Core
AVR
Data Bus Width
8 bit
Data Ram Size
4 KB
Interface Type
SPI, USART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
69
Number Of Timers
3
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 85 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA6490A-AU
Manufacturer:
Atmel
Quantity:
1 250
Company:
Part Number:
ATMEGA6490A-AUR
Manufacturer:
Maxim
Quantity:
43
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29. Typical Characteristics
29.1
29.1.1
8284A–AVR–10/10
ATmega169A
Active Supply Current
The following charts show typical behavior. These figures are not tested during manufacturing.
All current consumption measurements are performed with all I/O pins configured as inputs and
with internal pull-ups enabled. A square wave generator with rail-to-rail output is used as clock
source.
All Active- and Idle current consumption measurements are done with all bits in the PRR register
set and thus, the corresponding I/O modules are turned off. Also the Analog Comparator is dis-
abled during these measurements.The power consumption in Power-down mode is independent
of clock selection.
The current consumption is a function of several factors such as: operating voltage, operating
frequency, loading of I/O pins, switching rate of I/O pins, code executed and ambient tempera-
ture. The dominating factors are operating voltage and frequency.
The current drawn from capacitive loaded pins may be estimated (for one pin) as C
C
The parts are characterized at frequencies higher than test limits. Parts are not guaranteed to
function properly at frequencies higher than the ordering code indicates.
The difference between current consumption in Power-down mode with Watchdog Timer
enabled and Power-down mode with Watchdog Timer disabled represents the differential cur-
rent drawn by the Watchdog Timer.
Figure 29-1. ATmega169A: Active Supply Current vs. Low Frequency (0.1 - 1.0 MHz)
L
ATmega169A/169PA/329A/329PA/649A/649P/3290A/3290PA/6490A/6490P
= load capacitance, V
1.2
0.8
0.6
0.4
0.2
1
0
0
0.1
CC
0.2
= operating voltage and f = average switching frequency of I/O pin.
0.3
0.4
Frequency (MHz)
0.5
0.6
0.7
0.8
0.9
1
L
*
5.5 V
5.0 V
4.5 V
4.0 V
3.3 V
2.7 V
1.8 V
V
CC
*f where
360
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