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HT1382 데이터 시트보기 (PDF) - Holtek Semiconductor
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HT1382
I2C/3-Wire Real Time Clock
Holtek Semiconductor
HT1382 Datasheet PDF : 29 Pages
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HT1382
I
2
C/3-Wire Real Time Clock
3-wire Interface
Read Data Transfer
CE
S C LK
I/O
t
C C
t
C D H
t
D C
0
7
C o m m a n d B y te
Write Data Transfer
CE
S C LK
I/O
t
C C
t
C D H
t
D C
0
t
C L
7
C o m m a n d B y te
t
C D D
0
O u tp u t D a ta B y te
t
C D Z
7
t
C W H
t
C H
t
r
t
C C H
t
f
0
7
In p u t D a ta B y te
Crystal Specifications
Symbol
Parameter
Min.
Typ.
Max.
Unit
f
O
Nominal Frequency
¾
32.768
¾
kHz
ESR
Series Resistance
¾
50
65
k
W
C
L
Load Capacitance
¾
12.5
¾
pF
Note: 1. It is strongly recommended to use a crystal with load capacitance 12.5pF.
2. The oscillator selection can be optimized using a high quality resonator with small ESR value. Refer to
crystal manufacturer for more details: www.microcrystal.com
Rev. 1.40
8
May 27, 2011
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