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HT1621 Datasheet(PDF) 11 Page - Holtek Semiconductor Inc

Part No. HT1621
Description  RAM Mapping 324 LCD Controller for I/O MCU
Download  21 Pages
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Maker  HOLTEK [Holtek Semiconductor Inc]
Homepage  http://www.holtek.com
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HT1621 Datasheet(HTML) 11 Page - Holtek Semiconductor Inc

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READ Mode (Successive Address Reading)
WRITE Mode (Command Code:101)
WRITE Mode (Successive Address Writing)
Read-Modify-Write Mode (Command Code:101)
HT1621/HT1621G
Rev. 2.90
11
November 9, 2010
PATENTED
R D
D A T A
C S
W R
1
1
0 A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 D 3
M e m o r y A d d r e s s ( M A ) D a t a ( M A )
D 0 D 1 D 2 D 3 D 0 D 1 D 2 D 3 D 0 D 1 D 2 D 3 D 0
D a t a ( M A + 1 ) D a t a ( M A + 2 ) D a t a ( M A + 3 )
D A T A
C S
W R
1
0
1 A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 D 3
M e m o r y A d d r e s s 1 ( M A 1 ) D a t a ( M A 1 )
1
0
1 A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 D 3
M e m o r y A d d r e s s 2 ( M A 2 ) D a t a ( M A 2 )
D A T A
C S
W R
1
0
1 A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 D 3
M e m o r y A d d r e s s ( M A ) D a t a ( M A )
D 0 D 1 D 2 D 3 D 0 D 1 D 2 D 3 D 0 D 1 D 2 D 3 D 0
D a t a ( M A + 1 ) D a t a ( M A + 2 ) D a t a ( M A + 3 )
D A T A
C S
W R
1
0
1 A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 D 3
M e m o r y A d d r e s s 1 ( M A 1 ) D a t a ( M A 1 )
A 5 A 4 A 3 A 2 A 1 A 0 D 0 D 1 D 2 D 3
M e m o r y A d d r e s s 2 ( M A 2 ) D a t a ( M A 2 )
1
0
1
R D
D 0 D 1 D 2 D 3
D a t a ( M A 1 )


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