ATMEGA644P-20MU Atmel, ATMEGA644P-20MU Datasheet - Page 26
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ATMEGA644P-20MU
Manufacturer Part Number
ATMEGA644P-20MU
Description
IC MCU AVR 64K FLASH 44-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA644P-20MU
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)
2.7 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
2-Wire, JTAG, SPI
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
32
Number Of Timers
5
Operating Supply Voltage
2.7 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
On-chip Adc
10 bit, 8 Channel
Controller Family/series
AVR MEGA
No. Of I/o's
32
Eeprom Memory Size
2KB
Ram Memory Size
4KB
Cpu Speed
20MHz
Rohs Compliant
Yes
For Use With
ATSTK600-TQFP44 - STK600 SOCKET/ADAPTER 44-TQFPATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA644P-20MU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
9.12
9.13
9.14
Rev. 8011D - 02/07
Rev. 8011C - 10/06
Rev. 8011B - 09/06
1.
2.
3.
4.
5.
6.
7.
8.
9.
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Updated
Updated note in
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Updated note 3 and 4 in
Added note to
Added note to
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Updated
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”Pinout ATmega164P/324P/644P” on page
”Power-down Mode” on page
Table 24-1 on page
”Boot Size Configuration
Figure 28-13 on page 346
”DC Characteristics” on page
”DC Characteristics” on page
OL
limits in
”ATmega164P DC Characteristics” on page
”ATmega324P DC Characteristics” on page
Table 12-1 on page
”DC Characteristics” on page
”DC Characteristics” on page
273.
(1)
” on page
and
69.
45.
326.
326.
Figure 28-60 on page
290.
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