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PCF8579T/1 데이터시트(PDF) 12 Page - NXP Semiconductors

부품명 PCF8579T/1
상세설명  LCD column driver for dot matrix graphic displays
PDF  41 Pages
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제조업체  NXP [NXP Semiconductors]
홈페이지  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCF8579T/1 데이터시트(HTML) 12 Page - NXP Semiconductors

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PCF8579_5
© NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 05 — 11 May 2009
12 of 41
NXP Semiconductors
PCF8579
LCD column driver for dot matrix graphic displays
Vstate1(t) = C1(t) − R1(t).
Vstate2(t) = C2(t) − R2(t).
Fig 8.
LCD drive mode waveform for 1:16 multiplex rate
msa836
VDD
V2
V3
V4
V5
VLCD
VDD
V2
V3
V4
V5
VLCD
VDD
V2
V3
V4
V5
VLCD
VDD
V2
V3
V4
V5
VLCD
Tfr
ROW 1
R1 (t)
ROW 2
R2 (t)
COL 1
C1 (t)
COL 2
C2 (t)
dot matrix
1:16 multiplex rate
state 1 (OFF)
state 2 (ON)
0.2 Voper
0.2 Voper
0 V
Voper
Voper
Vstate 1(t)
Vstate 2(t)
0.2 Voper
0.2 Voper
0 V
Voper
Voper
0.6 Voper
0.6 Voper
V
on RMS
()
V
oper
-----------------------
1
16
------
16
1
–
16
16
1
+
()
------------------------------
+
0.316
=
=
V
off RMS
()
V
oper
------------------------
216
1
–
()
16
16
1
+
()2
-------------------------------------
0.254
==



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