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USB333X 데이터시트(PDF) 16 Page - Microchip Technology

부품명 USB333X
상세설명  Industry?셲 Smallest Hi-Speed USB Transceiver with Single Supply Operation
PDF  85 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB333X 데이터시트(HTML) 16 Page - Microchip Technology

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USB333x
DS00001880A-page 16
 2009 - 2015 Microchip Technology Inc.
4.2
Clock Specifications
The model number for each frequency of REFCLK is provided in on the Product Identification System page.
Note 1:
TSTART and TPREP are measured from the time when REFCLK and RESETB are both valid to when the
USB333x de-asserts DIR.
2:
The USB333x uses the AutoResume feature, Section 6.4.1.4, to allow a host start-up time of less than 1ms
4.3
ULPI Interface Timing
Note 4-4
REFCLK
does not need to be aligned in any way to the ULPI signals.
4.4
Digital IO Pins
TABLE 4-3:
CLOCK SPECIFICATIONS
Parameter
Symbol
Conditions
MIN
TYP
MAX
Units
Suspend Recovery Time
TSTART
LPM Enable
= 0
1.0
1.1
1.2
ms
TSTART_LPM
LPM Enable
= 1
125
150
uS
PHY Preparation Time
60MHz REFCLK
TPREP
LPM Enable
= 0
1.0
1.1
1.2
ms
TPREP_LPM
LPM Enable
= 1
125
150
uS
CLKOUT
Duty Cycle
DCCLKOUT
45
55
%
REFCLK
Duty Cycle
DCREFCLK
20
80
%
REFCLK
Frequency Accuracy
FREFCLK
-500
+500
PPM
TABLE 4-4:
ULPI INTERFACE TIMING (USB333X)
Parameter
Symbol
Conditions
MIN
MAX
Units
60MHz ULPI Output Clock
Note 4-4
Setup time (STP, data in)
TSC, TSD Model-specific REFCLK
5.0
ns
Hold time (STP, data in)
THC, THD Model-specific REFCLK
0.0
ns
Output delay (control out, 8-bit data out)
TDC, TDD Model-specific REFCLK
6.0
ns
60MHz ULPI Input Clock
Setup time (STP, data in)
TSC, TSD 60MHz REFCLK
3.0
ns
Hold time (STP, data in)
THC, THD 60MHz REFCLK
0.0
ns
Output delay (control out, 8-bit data out)
TDC, TDD 60Mhz REFCLK
6.0
ns
Note:
CLoad = 10pF
TABLE 4-5:
DIGITAL IO CHARACTERISTICS: RESETB, STP, DIR, NXT, DATA[7:0], AND REFCLK
PINS
Parameter
Symbol
Conditions
MIN
TYP
MAX
Units
Low-Level Input Voltage
(USB3330, USB3331,
USB3336, and USB3338)
VIL
VSS
0.4 *
VDD18
V
Low-Level Input Voltage
(USB3333)
VIL
Note 4-5
VSS
0.4 *
VDDIO
V
High-Level Input Voltage
(USB3330, USB3331,
USB3336, and USB3338)
VIH
0.68 *
VDD18
VDD18
V
High-Level Input Voltage
(USB3333)
VIH
0.68 *
VDDIO
VDDIO
V



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