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HT45B0K Datasheet(PDF) 4 Page - Holtek Semiconductor Inc

Part # HT45B0K
Description  SPI to USB Bridge
PDF  23 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT45B0K Datasheet(HTML) 4 Page - Holtek Semiconductor Inc

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Rev 1.00
March 22, 2010
4
HT45B0K
SPI to USB Bridge
A.C. Characteristics
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VDD
Conditions
RPOR
VDD Slew Rate for POR
――
0.0034
――
V/ms
fCLKI
System Clock
(External Clock Input)
3.3V~
5.0V
―
―
6
―
MHz
―
12
―
MHz
tCP
SCK Period (tCH + CL)
3.3V
―
62.5
――
ns
5.0V
―
50.0
――
ns
tCH
SCK High Time
3.3V
―
28
――
ns
5.0V
―
22
――
ns
tCL
SCK Low Time
3.3V
―
28
――
ns
5.0V
―
22
――
ns
tCSW
High Pulse Width
3.3V
―
500
――
ns
5.0V
―
400
――
ns
tCSS
to SCK Setup Time
――
100
――
ns
tCSH
to SCK Hold Time
――
0
――
ns
tSDS
SDI to SCK Setup Time
――
100
――
ns
tSDH
SDI to SCK Hold Time
――
0
――
ns
tR
SPI Output Rise Time
――
―
10
―
ns
tF
SPI Output Fall Time
――
―
10
―
ns
tW
SPI Data Output Delay Time
――
0
――
ns



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