AT90USB647-MU Atmel, AT90USB647-MU Datasheet - Page 371

• Manufacturer Part Number: AT90USB647-MU
• Description: MCU, 8BIT, 64K FLASH, USB, 64QFN
• Manufacturer: Atmel

Specifications of AT90USB647-MU

• Controller Family/series: AT90
• No. Of I/o's: 48
• Eeprom Memory Size: 2KB
• Ram Memory Size: 4KB
• Cpu Speed: 16MHz
• No. Of: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 64KB
• Oscillator Type: External, Internal
• Package: 64QFN EP
• Device Core: AVR
• Family Name: AT90
• Maximum Speed: 20 MHz
• Ram Size: 4 KB
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 48
• Interface Type: SPI/TWI/USART/USB
• On-chip Adc: 8-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 4
• Lead Free Status / Rohs Status: Details

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