ATmega6490 Atmel Corporation, ATmega6490 Datasheet - Page 388
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ATmega6490
Manufacturer Part Number
ATmega6490
Description
Manufacturer
Atmel Corporation
Specifications of ATmega6490
Flash (kbytes)
64 Kbytes
Pin Count
100
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
69
Ext Interrupts
32
Usb Speed
No
Usb Interface
No
Spi
2
Twi (i2c)
1
Uart
1
Segment Lcd
160
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
4
Eeprom (bytes)
2048
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8 to 5.5
Operating Voltage (vcc)
1.8 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
4
Input Capture Channels
1
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATmega6490-16AI
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
ATmega6490-16AU
Manufacturer:
Atmel
Quantity:
135
Company:
Part Number:
ATmega6490-16AUR
Manufacturer:
Atmel
Quantity:
1 500
Company:
Part Number:
ATmega6490A-AU
Manufacturer:
Atmel
Quantity:
1 250
Company:
Part Number:
ATmega6490A-AUR
Manufacturer:
Maxim
Quantity:
43
Company:
Part Number:
ATmega6490P-AU
Manufacturer:
Atmel
Quantity:
779
iv
ATmega329/3290/649/6490
18 SPI – Serial Peripheral Interface ......................................................... 158
19 USART0 ................................................................................................. 168
20 USI – Universal Serial Interface .......................................................... 195
21 Analog Comparator ............................................................................. 207
22 Analog to Digital Converter ................................................................ 211
17.10
17.11
18.1
18.2
18.3
18.4
18.5
19.1
19.2
19.3
19.4
19.5
19.6
19.7
19.8
19.9
19.10
19.11
20.1
20.2
20.3
20.4
20.5
21.1
21.2
21.3
22.1
22.2
22.3
Timer/Counter Prescaler ...............................................................................152
Register Description ......................................................................................153
Features ........................................................................................................158
Overview ........................................................................................................158
SS Pin Functionality ......................................................................................163
Data Modes ...................................................................................................164
Register Description ......................................................................................165
Features ........................................................................................................168
Overview ........................................................................................................168
Clock Generation ...........................................................................................169
Frame Formats ..............................................................................................172
USART Initialization .......................................................................................173
Data Transmission – The USART Transmitter ..............................................175
Data Reception – The USART Receiver .......................................................177
Asynchronous Data Reception ......................................................................181
Multi-processor Communication Mode ..........................................................185
Examples of Baud Rate Setting .....................................................................186
Register Description ......................................................................................190
Features ........................................................................................................195
Overview ........................................................................................................195
Functional Descriptions .................................................................................196
Alternative USI Usage ...................................................................................202
Register Descriptions ....................................................................................203
Overview ........................................................................................................207
Analog Comparator Multiplexed Input ...........................................................208
Register Description ......................................................................................209
Features ........................................................................................................211
Operation .......................................................................................................212
Starting a Conversion ....................................................................................213
2552K–AVR–04/11