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USB2642 Datasheet(PDF) 43 Page - Microchip Technology

No. de pieza USB2642
Descripción Electrónicos  USB 2.0 Hub and Flash Media Card Controller Combo
PDF  56 Pages
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Fabricante Electrónico  MICROCHIP [Microchip Technology]
Página de inicio  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB2642 Datasheet(HTML) 43 Page - Microchip Technology

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USB2642
DS00001578C-page 44
 2014-2015 Microchip Technology Inc.
2:
+70°C for commercial version, +85°C for industrial version.
3:
The TJ (junction temperature) must not exceed 125°C.
4:
The 3.3 V supply should be at least at 75% of its operating condition before the 1.8 V supply is allowed to
ramp up.
8.3
Package Thermal Specifications
8.4
DC Electrical Characteristics
FIGURE 8-1:
SUPPLY RISE TIME MODELS
TABLE 8-1:
48-PIN QFN PACKAGE THERMAL PARAMETERS
Parameter
Symbol
Value
Unit
Comments
Thermal Resistance
ΘJA
28
°C/W
Measured from the die to the ambient air
Junction-to-Top-of-Package
ΨJT
0.2
°C/W
-
Parameter
Symbol
Min
Typ
Max
Units
Comments
I, IPU, IPD Type Input Buffer
See Note 11 for I
buffer
Low Input Level
VILI
0.8
V
TTL Levels
High Input Level
VIHI
2.0
V
Pull Down
PD
72
µA
Pull Up
PU
58
µA
IS Type Input Buffer
Low Input Level
VILI
0.8
V
TTL Levels
High Input Level
VIHI
2.0
V
t10%
10%
90%
Voltage
tRT
t90%
Time
100%
3.3 V
VSS
VDD33
t10%
10%
90%
Voltage
tRT
t90%
Time
100%
1.8 V
VSS
VDD18



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