AT90USB647-MU Atmel, AT90USB647-MU Datasheet - Page 401
AT90USB647-MU
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
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30.6
Table 30-2
Interface meets or exceeds these requirements under the noted conditions.
Timing symbols refer to
Table 30-2.
7593K–AVR–11/09
Symbol
VIL
VIH
Vhys
VOL
tr
tof
tSP
I
C
f
Rp
t
t
i
SCL
HD;STA
LOW
(1)
i
(1)
(1)
(1)
(1)
(1)
2-wire Serial Interface Characteristics
describes the requirements for devices connected to the 2-wire Serial Bus. The AT90USB64/128 2-wire Serial
Parameter
Input Low-voltage
Input High-voltage
Hysteresis of Schmitt Trigger Inputs
Output Low-voltage
Rise Time for both SDA and SCL
Output Fall Time from V
Spikes Suppressed by Input Filter
Input Current each I/O Pin
Capacitance for each I/O Pin
SCL Clock Frequency
Value of Pull-up resistor
Hold Time (repeated) START Condition
Low Period of the SCL Clock
2-wire Serial Bus Requirements
Figure
Figure 30-2. Maximum Frequency vs. V
30-3.
IHmin
16 MHz
8 MHz
to V
ILmax
f
CK
(4)
10 pF < C
0.1V
> max(16f
3 mA sink current
f
f
SCL
SCL
f
f
f
f
SCL
SCL
SCL
SCL
CC
Condition
≤ 100 kHz
> 100 kHz
< V
≤ 100 kHz
> 100 kHz
≤ 100 kHz
> 100 kHz
b
CC
< 400 pF
SCL
i
< 0.9V
, AT90USB64/128
, 250kHz)
(6)
(7)
CC
(3)
(5)
20 + 0.1C
20 + 0.1C
V
----------------------------
V
----------------------------
0.05 V
CC
CC
0.7 V
3mA
3mA
-0.5
Min
-10
4.0
0.6
4.7
1.3
–
–
0
0
–
0
AT90USB64/128
0,4V
0,4V
CC
CC
b
b
(2)
(3)(2)
(3)(2)
V
0.3 V
1000ns
------------------ -
CC
300ns
--------------- -
50
Max
300
250
400
0.4
C
10
10
C
–
–
–
–
–
+ 0.5
b
(2)
b
CC
Units
kHz
µA
pF
ns
ns
ns
µs
µs
µs
µs
Ω
Ω
V
V
V
V
401
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