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HT16514 Datasheet(PDF) 17 Page - Holtek Semiconductor Inc

Part # HT16514
Description  Dot Character VFD Controller & Driver
PDF  39 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT16514 Datasheet(HTML) 17 Page - Holtek Semiconductor Inc

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Parallel Mode (i80)
Note:
The input signal rising time and falling time (tf,tr) is specified at 15ns or less.
All timing is specified using 20% and 80% of VDD as the reference.
tCCLW and tCCLR are specified as the overlap between CS as L and WR and RD at the L level.
Timing Conditions 3 for Serial Mode
Ta=25
°C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VDD
Conditions
tCYK
Shift Clock Cycle
4.5V~5.5V
SCK
500
¾¾
ns
2.7V~4.5V
1000
¾¾
ns
tWHK
High-level Shift Clock Pulse
Width
4.5V~5.5V
SCK
200
¾¾
ns
2.7V~4.5V
300
¾¾
ns
tWLK
Low-level Shift Clock Pulse
Width
4.5V~5.5V
SCK
200
¾¾
ns
2.7V~4.5V
300
¾¾
ns
tHSTBK
Shift Clock Hold Time
4.5V~5.5V
STD
¯® SCK¯
100
¾¾
ns
2.7V~4.5V
150
¾¾
ns
tDS
Data Setup Time
4.5V~5.5V
Data
® SCK­
100
¾¾
ns
2.7V~4.5V
150
¾¾
ns
tDK
Data Hold Time
4.5V~5.5V
SCK
­® Data
100
¾¾
ns
2.7V~4.5V
150
¾¾
ns
tDKSTB
ST Hold Time
4.5V~5.5V
SCK
­® ST­
500
¾¾
ns
2.7V~4.5V
750
¾¾
ns
tWSTB
ST Pulse Width
4.5V~5.5V
¾
500
¾¾
ns
2.7V~4.5V
750
¾¾
ns
tWAIT
Wait Time
4.5V~5.5V
8th CLK
­® 1st CLK¯
1
¾¾
ms
2.7V~4.5V
1
¾¾
ms
tODO
Output Data Delay Time
4.5V~5.5V
ST
¯® Data
¾¾
150
ns
2.7V~4.5V
¾¾
300
ns
HT16514
Rev. 1.00
17
October 4, 2006
R S
C S
W R , R D
D B 0 ~ D B 7
( W r i t e )
D B 0 ~ D B 7
( R e a d )
t f
t r
t R H 8
t C Y C 8
t R S 8
t C C L R , t C C L W
t D S 8
t A C C 8
t O H 8
t D H 8
t C C H R , t C C H W
t f



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