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HT1621 데이터시트(PDF) 2 Page - Holtek Semiconductor Inc

부품명 HT1621
상세설명  RAM Mapping 32x4 LCD Controller for I/O C
PDF  20 Pages
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제조업체  HOLTEK [Holtek Semiconductor Inc]
홈페이지  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT1621 데이터시트(HTML) 2 Page - Holtek Semiconductor Inc

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Block Diagram
Note: CS: Chip selection
BZ, BZ: Tone outputs
WR,RD, DATA: Serial interface
COM0~COM3, SEG0~SEG31: LCD outputs
IRQ: Time base or WDT overflow output
HT1621
2
April 21, 2000
W a t c hd og T i m e r
and
T i m e B as e G e n e r a t o r
D i sp l a y R A M
L CD Dr i v e r /
Bi a s C i r c u i t
C ont r o l
and
Ti m i n g
Ci r c u i t
DA T A
WR
OSC O
OSC I
CS
RD
CO M 0
CO M 3
SEG 0
SEG 3 1
T o ne F r equen c y
G ene r a t o r
BZ
BZ
IR Q
VSS
VD D
VL C D



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