PCF8558 Ver la hoja de datos (PDF) - Philips Electronics
Número de pieza
componentes Descripción
Fabricante
PCF8558 Datasheet PDF : 24 Pages
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Philips Semiconductors
Universal LCD driver for small graphic
panels
Objective specification
PCF8558
ROW 1
R1 (t)
VDD
V2
V3
V4
V5
VLCD
ROW 2
R2 (t)
VDD
V2
V3
V4
V5
VLCD
COL 1
C1 (t)
VDD
V2
V3
V4
V5
VLCD
COL 2
C2 (t)
VDD
V2
V3
V4
V5
VLCD
frame n
Vstate 1(t)
VOP
0.7269VOP
0.2731VOP
0V
0.2731VOP
0.7269VOP
VOP
Vstate 2(t)
VOP
0.7269VOP
0.2731VOP
0V
0.2731VOP
0.7269VOP
VOP
123456 789
frame n + 1
Vstate 1(t)
Vstate 2(t)
... 40 1 2 3 4 5 6 7 8 9
... 40 MGG560
Vstate1(t) = C2(t) − R1(t); Vstate2(t) = C2(t) − R2(t).
Fig.3 Typical LCD driver waveforms (MUX rate 1 : 40).
1998 Apr 07
7
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