AT90USB646 Atmel Corporation, AT90USB646 Datasheet - Page 371
AT90USB646
Manufacturer Part Number
AT90USB646
Description
Manufacturer
Atmel Corporation
Specifications of AT90USB646
Flash (kbytes)
64 Kbytes
Pin Count
64
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
48
Ext Interrupts
16
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
2
Twi (i2c)
1
Uart
1
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
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
4
Output Compare Channels
10
Input Capture Channels
1
Pwm Channels
9
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT90USB646-AU
Manufacturer:
MOT
Quantity:
1 100
Part Number:
AT90USB646-AU
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Part Number:
AT90USB646-MU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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7593K–AVR–11/09
,
Table 29-8.
Table 29-9.
Table 29-10. Command Byte Bit Encoding
Table 29-11. No. of Words in a Page and No. of Pages in the Flash
16K words (32K bytes)
32K words (64K bytes)
64K words (128K bytes)
XA1
Command Byte
0
0
1
1
Flash Size
1000 0000
0100 0000
0010 0000
0001 0000
0001 0001
0000 1000
0000 0100
0000 0010
0000 0011
PAGEL
XA1
XA0
BS1
Pin
Pin Values Used to Enter Programming Mode
XA1 and XA0 Enoding
XA0
0
1
0
1
Action when XTAL1 is Pulsed
Load Flash or EEPROM Address (High or low address byte
determined by BS2 and BS1).
Load Data (High or Low data byte for Flash determined by BS1).
Load Command
No Action, Idle
Command Executed
Chip Erase
Write Fuse bits
Write Lock bits
Write Flash
Write EEPROM
Read Signature Bytes and Calibration byte
Read Fuse and Lock bits
Read Flash
Read EEPROM
Page Size
128 words
128 words
64 words
Prog_enable[3]
Prog_enable[2]
Prog_enable[1]
Prog_enable[0]
PCWORD
Symbol
PC[6:0]
PC[6:0]
PC[6:0]
Pages
No. of
256
256
512
PCPAGE
AT90USB64/128
PC[13:7]
PC[15:7]
PC[14:7]
Value
0
0
0
0
PCMSB
13
14
15
371
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