AT43USB355M-AC ATMEL [ATMEL Corporation], AT43USB355M-AC Datasheet - Page 104
![no-image](/images/no-image-200.jpg)
AT43USB355M-AC
Manufacturer Part Number
AT43USB355M-AC
Description
Full-speed USB Microcontroller with Embedded Hub, ADC and PWM
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT43USB355M-AC.pdf
(115 pages)
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AC Characteristics
104
AT43USB355
Table 33. PA, PB, PD, PF
Note:
Table 34. Oscillator Signals: XTAL1, XTAL2
Note:
Table 35. SEEPROM SPI Timing
Symbol
V
V
V
V
RPU
C
Symbol
V
V
CX1
CX2
C12
t
DL
Symbol
f
t
t
t
t
t
t
t
SU
SCK
RO
CSS
CSH
SU
H
HO
V
OL2
OH2
IL2
IH2
LH
HL
, t
FO
VCEXT is the voltage of CEXT1, CEXT2, CEXT3 and CEXTA.
XTAL2 must not be used to drive other circuitry.
Parameter
Output Low Level, PA, PB,
PD, PF[1:3]
Output High Level
Input Low Level
Input High Level
PC Pull-up resistor current
Input/Output capacitance
Parameter
OSC1 switching level
OSC1 switching level
Input capacitance, XTAL1
Output capacitance, XTAL2
OSC1/2 capacitance
Start-up time
Drive level
Parameter
SCK Clock Frequency 50% duty cycle
Output Rise Time, Fall Time
SSN Setup Time
SSN Hold Time
Data IN Setup Time
Data In Hold Time
Output Hold Time
Output Valid
Condition
6 MHz, fundamental
Condition
IOL = 2 mA
IOH = 2mA
V = 0
1 MHz
Condition
VCEXT - 0.4
0.7 VCEXT
Min
-0.3
90
0.47
0.67
Min
Min
333
10
10
-5
VCEXT + 0.3
0
0
2
0
0.3 VCEXT
Max
280
Max
1.20
1.44
0.5
10
10
10
50
5
2
Max
333
2603G–USB–04/06
10
10
20
20
5
Unit
µW
ms
Unit
pF
pF
pF
Unit
V
V
µA
pF
ns
ns
ns
ns
ns
ns
ns
ns
ns
V
V
V
V
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