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UPD16675AP 데이터시트(PDF) 28 Page - NEC

부품명 UPD16675AP
상세설명  1/34, 1/36 DUTY LCD CONTROLLER/DRIVER
PDF  36 Pages
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제조업체  NEC [NEC]
홈페이지  http://www.nec.com/
Logo NEC - NEC

UPD16675AP 데이터시트(HTML) 28 Page - NEC

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28
µµµµPD16675A
Switching Characteristics
(Unless otherwise specified, TA =
−−−−40 to ++++85°°°°C, VDD1 = 2.7 to 3.3 V, VCHA = H: VDD2 = 2.7 to 3.6 V or VCHA = L:
VDD2 = 2.7 to 5.5 V)
Parameter
Symbol
Condition
MIN.
TYP.
MAX.
Unit
Oscillation frequency
fOSC
Self-oscillation
21
30
50
kHz
Transfer delay time
tPHL
SCK
↓→DATA↓
100
ns
tPLH
SCK
↓→DATA↑
300
ns
Remark The TYP. value is a reference value when TA = 25
°C.
The time for one frame is obtained with the following formula.
1 frame = 1/fOSC
× 8 × number of duties
If fOSC = 30 kHz and 1/34 duty, then the result is:
1 frame = 33
µs × 8 × 34 = 9.1 ms
Required Conditions for Timing
(Unless otherwise specified, TA =
−−−−40 to ++++85°°°°C, VDD1 = 2.7 to 3.3 V, VCHA = H: VDD2 = 2.7 to 3.6 V or VCHA = L:
VDD2 = 2.7 to 5.5 V)
(1) Common
Parameter
Symbol
Condition
MIN.
TYP.
MAX.
Unit
Clock frequency
fOSC
OSCIN external clock
20
30
50
kHz
High level clock pulse width
tWHC1
OSCIN external clock
10
25
µs
Low level clock pulse width
tWLC1
OSCIN external clock
10
25
µs
High level clock pulse width
tWHC2
OSCBRI external clock
400
ns
Low level clock pulse width
tWLC2
OSCBRI external clock
400
ns
Rise/fall time
tr, tf
OSCBRI external clock
100
ns
Reset pulse width
tWRE
Reset pin
1.0
µs
Remark The TYP. value is a reference value when TA = 25
°C.



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