PCF8579TD NXP Semiconductors, PCF8579TD Datasheet - Page 12

• Manufacturer Part Number: PCF8579TD
• Description: LCD Drivers LCD DRVR DOT MATRIX
• Manufacturer: NXP Semiconductors

Specifications of PCF8579TD

• Maximum Clock Frequency: 10 KHz
• Operating Supply Voltage: 2.5 V to 6 V
• Maximum Power Dissipation: 400 mW
• Package / Case: VSO-56
• Maximum Supply Current: 20 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: PCF8579T/1,112

NXP Semiconductors
PCF8579_5
Product data sheet
Fig 8.
V
V
V
V
V
----------------------- -
LCD drive mode waveform for 1:16 multiplex rate
V
---------------------- -
state 1
state 2
state1
state2
off RMS
on RMS
V
V
ROW 1
R1 (t)
ROW 2
R2 (t)
COL 1
C1 (t)
COL 2
C2 (t)
oper
oper
(t)
(t)
(t) = C1(t)
(t) = C2(t)
V
0.2 V
0 V
0.2 V
V
V
0.6 V
0.2 V
0 V
0.2 V
0.6 V
V
=
=
V
V2
V3
V4
V5
V
V
V2
V3
V4
V5
V
V
V2
V3
V4
V5
V
V
V2
V3
V4
V5
V
oper
oper
oper
oper
DD
LCD
DD
LCD
DD
LCD
DD
LCD
oper
oper
oper
oper
oper
oper
----- -
16
------------------------------------ -
1
16
R1(t).
R2(t).
2
+
------------------------------
16
16 1
16
16 1
–
+
16
–
1
+
2
1
=
=
0.254
0.316
Rev. 05 — 11 May 2009
T
fr
LCD column driver for dot matrix graphic displays
msa836
dot matrix
1:16 multiplex rate
state 1 (OFF)
state 2 (ON)
PCF8579
© NXP B.V. 2009. All rights reserved.
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