ATMEGA649A-AU Atmel, ATMEGA649A-AU Datasheet - Page 707

IC MCU AVR 64K FLASH 64TQFP

ATMEGA649A-AU

Manufacturer Part Number
ATMEGA649A-AU
Description
IC MCU AVR 64K FLASH 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheets

Specifications of ATMEGA649A-AU

Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
54
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
64-TQFP
Processor Series
ATmega
Core
AVR
Data Bus Width
8 bit
Data Ram Size
4 KB
Interface Type
SPI, USART
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
54
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
Part Number:
ATMEGA649A-AU
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
ATMEGA649A-AUR
Manufacturer:
Atmel
Quantity:
10 000
8284A–AVR–10/10
18 SPI – Serial Peripheral Interface ......................................................... 166
19 USART0 ................................................................................................. 176
20 USI – Universal Serial Interface .......................................................... 204
21 Analog Comparator ............................................................................. 216
ATmega169A/169PA/329A/329PA/649A/649P/3290A/3290PA/6490A/6490P
17.3Timer/Counter Clock Sources .............................................................................148
17.4Counter Unit ........................................................................................................149
17.5Output Compare Unit ..........................................................................................149
17.6Compare Match Output Unit ................................................................................151
17.7Modes of Operation .............................................................................................152
17.8Timer/Counter Timing Diagrams .........................................................................156
17.9Asynchronous Operation of Timer/Counter2 .......................................................158
17.10Register Description ..........................................................................................161
18.1Features ..............................................................................................................166
18.2Overview .............................................................................................................166
18.3SS Pin Functionality ............................................................................................171
18.4Data Modes .........................................................................................................171
18.5Register Description ............................................................................................173
19.1Features ..............................................................................................................176
19.2Overview .............................................................................................................176
19.3Clock Generation .................................................................................................178
19.4Frame Formats ....................................................................................................181
19.5USART Initialization ............................................................................................182
19.6Data Transmission – The USART Transmitter ....................................................184
19.7Data Reception – The USART Receiver .............................................................186
19.8Asynchronous Data Reception ............................................................................190
19.9Multi-processor Communication Mode ................................................................193
19.10Examples of Baud Rate Setting ........................................................................195
19.11Register Description ..........................................................................................199
20.1Features ..............................................................................................................204
20.2Overview .............................................................................................................204
20.3Functional Descriptions .......................................................................................205
20.4Alternative USI Usage .........................................................................................211
20.5Register Description ............................................................................................212
21.1Overview .............................................................................................................216
21.2Analog Comparator Multiplexed Input .................................................................216
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