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HT1622 Datasheet(PDF) 7 Page - Holtek Semiconductor Inc

Part # HT1622
Description  RAM Mapping 328 LCD Controller for I/O MCU
PDF  17 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT1622 Datasheet(HTML) 7 Page - Holtek Semiconductor Inc

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RC Oscillator Frequency Deviation
Operating Temperature
-40°C0°C25°C70°C75°C80°C85°C
Average Deviation
19.85%
2.98%
0
-21.14%
-22.50%
-23.82%
-25.35%
HT1622
Rev. 2.00
7
June 9, 2009
PATENTED
9 0 %
5 0 %
1 0 %
G N D
W R , R D
C l o c k
t f
t r
t C L K
t C L K
V D D
Figure 1
5 0 %
V A L I D D A T A
5 0 %
D B
W R , R D
C l o c k
G N D
t s u
t h
V D D
V D D
G N D
Figure 2
C S
G N D
5 0 %
5 0 %
F I R S T
C l o c k
L A S T
C l o c k
G N D
W R , R D
C l o c k
t s u 1
t h 1
t C S
V D D
V D D
Figure 3
t S R
t O F F
V D D
0 V
Figure 4. Power-on Reset Timing



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