ATMEGA644A-MU Atmel, ATMEGA644A-MU Datasheet - Page 330
![IC MCU AVR 64K FLASH 44VQFN](/photos/12/13/121316/313-44-qfn_sml.jpg)
ATMEGA644A-MU
Manufacturer Part Number
ATMEGA644A-MU
Description
IC MCU AVR 64K FLASH 44VQFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA644A-MU
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
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
44-VQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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27.1.3
Table 27-4.
Notes:
27.1.4
Table 27-5.
Notes:
8272A–AVR–01/10
Symbol
I
Symbol
I
CC
CC
1. All bits set in the
2. Typical values at 25°C. Maximum values are test limits in production.
3. The current consumption values include input leakage current.
1. All bits set in the
2. Typical values at 25°C. Maximum values are test limits in production.
3. The current consumption values include input leakage current.
ATmega324A DC Characteristics
ATmega324PA DC Characteristics
T
T
Parameter
Parameter
Power Supply Current
Power-save mode
Power-down mode
Power Supply Current
Power-save mode
Power-down mode
A
A
= -40°C to 85°C, V
= -40°C to 85°C, V
”PRR – Power Reduction Register” on page
”PRR – Power Reduction Register” on page
164A/164PA/324A/324PA/644A/644PA/1284/1284P
(3)
(3)
(3)
(3)
(1)
(1)
CC
CC
= 1.8V to 5.5V (unless otherwise noted)
= 1.8V to 5.5V (unless otherwise noted)
Condition
Active 1 MHz, V
Active 4 MHz, V
Active 8 MHz, V
Idle 1 MHz, V
Idle 4 MHz, V
Idle 8 MHz, V
32 kHz TOSC enabled,
V
32 kHz TOSC enabled,
V
WDT enabled, V
WDT disabled, V
Condition
Active 1 MHz, V
Active 4 MHz, V
Active 8 MHz, V
Idle 1 MHz, V
Idle 4 MHz, V
Idle 8 MHz, V
32 kHz TOSC enabled,
V
32 kHz TOSC enabled,
V
WDT enabled, V
WDT disabled, V
CC
CC
CC
CC
= 1.8V
= 3V
= 1.8V
= 3V
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
= 2V
= 3V
= 5V
= 2V
= 3V
= 5V
CC
CC
= 2V
= 3V
= 5V
= 2V
= 3V
= 5V
= 3V
= 3V
= 3V
= 3V
49.
49.
Min.
Min.
Typ.
Typ.
0.06
0.35
0.15
0.06
0.35
0.15
0.3
1.5
0.3
1.5
5.2
1.3
0.5
0.6
4.2
5.2
1.3
0.5
0.6
4.2
(2)
(2)
Max.
Max.
0.15
0.55
0.5
2.7
0.7
5.0
8.0
2.0
3.5
0.5
1.5
5.5
3.0
12
15
9
Units
Units
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
µA
µA
µA
µA
µA
µA
µA
µA
330
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