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UPD16680 Datasheet(PDF) 37 Page - NEC

Part # UPD16680
Description  1/53, 1/40 DUTY, LCD CONTROLLER/DRIVER WITH BUILT-IN RAM
PDF  44 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD16680 Datasheet(HTML) 37 Page - NEC

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Data Sheet S12694EJ2V0DS00
37
µµµµPD16680
Switching characteristics (Unless otherwise specified, TA = –40 to +85
°C, VDD = 2.7 to 3.3 V)
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Oscillation frequency
FOSC
Self-oscillation
25
32
38
kHz
Transfer delay time 1
tPHL
SCK
↓ → DATA↓
100
ns
Transfer delay time 2
tPLH
SCK
↓ → DATA↑
300
ns
Remarks 1.
The TYP. value is a reference value when TA =+25
°C.
2. The time for one frame is found from the following formula.
1 frame = 1/fosc x 8 x number of duties
(Example)
fOSC = 32 kHz, 1/53, then the result is :
1 frame = 33
µs x 8 x 53 = 13.25 ms ≅ 75.5 Hz
5



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