AT90USB646-16MU Atmel, AT90USB646-16MU Datasheet - Page 28
![Microcontrollers (MCU) AVR USB 64K FLASH5V](/photos/39/69/396955/mlf_qfn-64_sml.jpg)
AT90USB646-16MU
Manufacturer Part Number
AT90USB646-16MU
Description
Microcontrollers (MCU) AVR USB 64K FLASH5V
Manufacturer
Atmel
Datasheet
1.AT90USB1287-16MU.pdf
(30 pages)
Specifications of AT90USB646-16MU
Data Bus Width
8 bit
Program Memory Type
Flash
Program Memory Size
64 KB
Data Ram Size
4 KB
Interface Type
2-Wire, SPI, USART
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
48
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
QFN-64
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Lead Free Status / Rohs Status
Details
Other names
AT90USB646-MU
If the CPU core is in sleep and wakes-up from an asynchronous timer interrupt and then go
back in sleep mode again it may wake up several times.
Problem Fix/workaround
A s o ft wa r e wo r k ar o un d i s to w ai t wi t h pe r fo r mi n g th e s l ee p i n st r uc t io n u nt i l
TCNT2>OCR2+1.
AT90USB64/128
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7593GS–AVR–03/08