ATMEGA644PA-MUR Atmel, ATMEGA644PA-MUR Datasheet - Page 572
ATMEGA644PA-MUR
Manufacturer Part Number
ATMEGA644PA-MUR
Description
IC MCU AVR 64K FLASH 44VQFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA644PA-MUR
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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34. Datasheet Revision History
34.1
8272A–AVR–01/10
Rev. 8272A - 01/10
Please note that the referring page numbers in this section are referred to this document. The
referring revision in this section are referring to the document revision.
164A/164PA/324A/324PA/644A/644PA/1284/1284P
1.
2.
Initial revision (Based on the ATmega164PA/324PA/644PA/1284P datasheet 8252G-AVR-11/09
and on the ATmega644 datasheet 2593N-AVR-09/09).
Changes done:
– Non-picoPower devices added: ATmega164A/324A/644A/1284
– Updated
– Updated
– Updated
– Updated
– Updated
– Updated
– Added
– Added
– Added
– Added
– Added
– Added
– Added
– Added
– Added
– Added
”DC Characteristics” on page 327
”ATmega164A Typical Characteristics” on page 343
”ATmega324A Typical Characteristics” on page 395
”ATmega644A Typical Characteristics” on page 447
”ATmega1284 Typical Characteristics” on page 499
”Ordering Information” on page 558
”Errata for ATmega164A” on page 571
”Errata for ATmega324A” on page 571
”Errata for ATmega644PA” on page 571
”Errata for ATmega1284” on page 571
Table 2-1 on page 6
Table 9-1 on page 43
”Sleep Modes” on page 43
”Register Description” on page 68
”USART” on page 172
”Signature Bytes” on page 298
and
and
”USART in SPI Mode” on page 199
and
”BOD Disable
for non-picoPower devices.
for non-picoPower devices
”Page Size” on page 298
(1)
” on page 44
572
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