AT90USB646-AUR Atmel, AT90USB646-AUR Datasheet - Page 400
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AT90USB646-AUR
Manufacturer Part Number
AT90USB646-AUR
Description
MCU AVR 64K FLASH 16MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® 90USBr
Datasheet
1.AT90USB646-MU.pdf
(461 pages)
Specifications of AT90USB646-AUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
EBI/EMI, I²C, SPI, UART/USART, USB, USB OTG
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
48
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Data Bus Width
8 bit
Data Ram Size
4 KB
Interface Type
SPI, UART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
48
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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30.3
30.4
30.5
400
7. As specified on the USB Electrical chapter of USB Specifications 2.0, the D+/D- pads can withstand voltages down to -1V
8. USB Peripheral consumes up to 50mA from the regulator or UVcc pin when USB is used at full-load
External Clock Drive Waveforms
External Clock Drive
Maximum speed vs. V
AT90USB64/128
applied through a 39 Ohms resistor
Figure 30-1. External Clock Drive Waveforms
Table 30-1.
Note:
Maximum frequency is depending on V
V
Symbol
CC
1/t
Δ
t
t
t
t
t
CHCX
CLCX
CLCH
CHCL
CLCL
t
CLCL
CLCL
curve is linear between 2.7V < V
All DC Characteristics contained in this datasheet are based on simulation and characterization of
other AVR microcontrollers manufactured in the same process technology. These values are pre-
liminary values representing design targets, and will be updated after characterization of actual
silicon.
CC
Parameter
Oscillator
Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
Change in period
from one clock
cycle to the next
External Clock Drive
V
IL1
V
IH1
V
Min.
500
200
200
CC
0
=1.8-5.5V
CC
CC.
Max.
< 5.5V.
2.0
2.0
2
2
As shown in
Min.
V
125
50
50
0
CC
=2.7-5.5V
Figure
Max.
1.6
1.6
8
2
30-2, the Maximum Frequency vs.
V
Min.
62.5
25
25
CC
0
=4.5-5.5V
Max.
0.5
0.5
16
2
Units
MHz
7593K–AVR–11/09
ns
ns
ns
μs
μs
%
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