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AT43USB355 Datasheet(PDF) 104 Page - ATMEL Corporation

Part # AT43USB355
Description  Full-speed USB Microcontroller with Embedded Hub, ADC and PWM
PDF  115 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT43USB355 Datasheet(HTML) 104 Page - ATMEL Corporation

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104
AT43USB355
2603G–USB–04/06
Note:
VCEXT is the voltage of CEXT1, CEXT2, CEXT3 and CEXTA.
Note:
XTAL2 must not be used to drive other circuitry.
AC Characteristics
Table 33. PA, PB, PD, PF
Symbol
Parameter
Condition
Min
Max
Unit
V
OL2
Output Low Level, PA, PB,
PD, PF[1:3]
IOL = 2 mA
0.5
V
V
OH2
Output High Level
IOH = 2mA
VCEXT - 0.4
V
VIL2
Input Low Level
-0.3
0.3 VCEXT
V
VIH2
Input High Level
0.7 VCEXT
VCEXT + 0.3
V
RPU
PC Pull-up resistor current
V = 0
90
280
µA
C
Input/Output capacitance
1 MHz
10
pF
Table 34. Oscillator Signals: XTAL1, XTAL2
Symbol
Parameter
Condition
Min
Max
Unit
VLH
OSC1 switching level
0.47
1.20
V
V
HL
OSC1 switching level
0.67
1.44
V
CX1
Input capacitance, XTAL1
10
pF
CX2
Output capacitance, XTAL2
10
pF
C12
OSC1/2 capacitance
5
pF
tSU
Start-up time
6 MHz, fundamental
2
ms
DL
Drive level
50
µW
Table 35. SEEPROM SPI Timing
Symbol
Parameter
Condition
Min
Max
Unit
f
SCK
SCK Clock Frequency 50% duty cycle
333
333
ns
tRO, tFO
Output Rise Time, Fall Time
10
10
ns
-5
5
ns
t
CSS
SSN Setup Time
0
20
ns
tCSH
SSN Hold Time
0
20
ns
t
SU
Data IN Setup Time
10
ns
t
H
Data In Hold Time
2
ns
tHO
Output Hold Time
0
ns
t
V
Output Valid
10
ns



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