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PC8374L Datasheet(PDF) 226 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # PC8374L
Description  SensorPathTM SuperI/O with Glue Functions
PDF  239 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC8374L Datasheet(HTML) 226 Page - National Semiconductor (TI)

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10.0 Device Characteristics (Continued)
www.national.com
226
Revision1.1
10.4.5 FDC Timing
FDC Write Data Timing
tDRP tICP tWDW Values
FDC Drive Control Timing
Symbol
Parameter
Min
Max
Unit
tHDH
HDSEL Hold from WGATE Inactive1
1. Not tested. Guaranteed by design.
100
µs
tHDS
HDSEL Setup to WGATE Active1
100
µs
tWDW
Write Data Pulse Width1
See tDRP,tICP and tWDW values in table below
Data Rate
tDRP
tICP
tICP Nominal
tWDW
tWDW Minimum
Unit
1 Mbps
1000
6xtCP
1
1. tCP is the clock period defined for CLOCKI in “Clock Timing” on page 222.
125
2 x tICP
250
ns
500 Kbps
2000
6xtCP
1
125
2 x tICP
250
ns
300 Kbps
3333
10 x tCP
1
208
2 x tICP
375
ns
250 Kbps
4000
12 x tCP
1
250
2 x tICP
500
ns
Symbol
Parameter
Min
Max
Unit
tDST
DIR Setup to STEP Active1
1. Not tested. Guaranteed by design.
6
µs
tIW
Index Pulse Width
100
ns
tSTD
DIR Hold from STEP Inactive
tSTR
ms
tSTP
STEP Active (Low) Pulse Width1
8
µs
tSTR
STEP Rate Time1
0.5
ms
tHDS
tHDH
tWDW
HDSEL
WGATE
WDATA
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