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USB5744/2G Datasheet(PDF) 37 Page - Microchip Technology

Part # USB5744/2G
Description  4-Port SS/HS USB Controller Hub
PDF  49 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

USB5744/2G Datasheet(HTML) 37 Page - Microchip Technology

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 2015-2016 Microchip Technology Inc.
DS00001855D-page 37
USB5744
9.6.7
SPI TIMING
This section specifies the SPI timing requirements for the device.
FIGURE 9-5:
SPI TIMING
TABLE 9-8:
SPI TIMING (30 MHZ OPERATION)
Symbol
Description
Min
Typ
Max
Units
tfc
Clock frequency
30
MHz
tceh
Chip enable (SPI_CE_EN) high time
100
ns
tclq
Clock to input data
13
ns
tdh
Input data hold time
0
ns
tos
Output setup time
5
ns
toh
Output hold time
5
ns
tov
Clock to output valid
4
ns
tcel
Chip enable (SPI_CE_EN) low to first clock
12
ns
tceh
Last clock to chip enable (SPI_CE_EN) high
12
ns
TABLE 9-9:
SPI TIMING (60 MHZ OPERATION)
Symbol
Description
Min
Typ
Max
Units
tfc
Clock frequency
60
MHz
tceh
Chip enable (SPI_CE_EN) high time
50
ns
tclq
Clock to input data
9
ns
tdh
Input data hold time
0
ns
tos
Output setup time
5
ns
toh
Output hold time
5
ns
tov
Clock to output valid
4
ns
tcel
Chip enable (SPI_CE_EN) low to first clock
12
ns
tceh
Last clock to chip enable (SPI_CE_EN) high
12
ns
SPI_CLK
SPI_DI
SPI_DO
SPI_CE_N
tcel
tfc
tclq
tceh
tdh
toh
tos
tov
toh



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