ATMEGA644PA-MU Atmel, ATMEGA644PA-MU Datasheet - Page 359
ATMEGA644PA-MU
Manufacturer Part Number
ATMEGA644PA-MU
Description
IC MCU 8BIT 64KB FLASH 44VQFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA644PA-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
Processor Series
ATMEGA64x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
4 KB
Interface Type
SPI, TWI, UART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
32
Operating Supply Voltage
1.8 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA644PA-MU
Manufacturer:
ATMEL
Quantity:
5 600
Part Number:
ATMEGA644PA-MU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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28.1.10
8272A–AVR–01/10
BOD Threshold
Figure 28-31. ATmega164A: BOD Threshold vs. Temperature (V
Figure 28-32. ATmega164A: BOD Threshold vs. Temperature (V
164A/164PA/324A/324PA/644A/644PA/1284/1284P
4.34
4.32
4.28
4.26
4.24
4.22
2.78
2.76
2.74
2.72
2.68
2.66
4.3
4.2
2.7
-50
-50
-40
-40
-30
-30
-20
-20
-10
-10
0
0
Temperature (°C)
Temperature (°C)
10
10
Falling Vcc
Rising Vcc
Rising Vcc
Falling Vcc
20
20
30
30
40
40
50
50
BOT
BOT
60
60
= 4.3V)
= 2.7V)
70
70
80
80
90
90
359
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