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| NJU6543 Datasheet, PDF (15/29 Pages) New Japan Radio – 1/2 1/3 1/4 Duty LCD Driver | |||
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Preliminary NJU6543
⢠AC characteristics
PARAMETER
SYMBOL
(VDD=VLCD=2.4 to 5.5V, VSS=0V, Ta=-40 to 105°C)
CONDITIONS
MIN TYP MAX UNIT Note
"L" Level Clock Pulse Width
"H" Level Clock Pulse
Width
tWCLL
tWCLH
230
ns
230
ns
Data Setup Time
tDS
20
Data Hold Time
tDH
20
CSb Wait Time
tCP
50
CSb Setup Time
tCS
180
CSb Hold Time
tCH
50
CSb"H" Level Pulse Width
tWCH
50
Rising Time
tr
Falling Time
tf
Note-9) tCP is the time when SCK is kept at âHâ during CSb changed from âHâ to âLâ.
ns
ns
ns
9
ns
ns
ns
20
ns
20
ns
⢠Input Timing
tWCH
CSb
SCK
SI
tCP tCS tWCLH tWCLL
VIL
VIL
tDS tDH
tf
tr
tCH
⢠Input condition when hardware reset circuit is used
PARAMETER
Reset Input âLâ Level Width
Reset Rising Time
Reset Falling Time
SYMBOL
tRSL
trRS
tfRS
tfRS
RSTb
VIH
VIL
CONDITIONS
fOSC= 15.4kHz
tRSL
trRS
⢠Power supply condition when hardware reset circuit is used
PARAMETER
Power-on Rising Time
Power-off Time
SYMBOL
trDD
tOFF
2.2V
CONDITIONS
(Ta=25°C)
MIN TYP MAX UNIT
1.5
ms
100
ns
100
ns
(Ta=-40 to 105°C)
MIN TYP MAX UNIT
0.1
5
ms
1
ms
VDD
0.2V
0.2V
trDD
tOFF
Note 10) tOFF is the off time when power-supply turns off suddenly or cycles on/off.
Ver.2008-11-28
- 15 -
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