PCF8579T/1 NXP Semiconductors, PCF8579T/1 Datasheet - Page 11

• Manufacturer Part Number: PCF8579T/1
• Description: IC, LCD DRIVER, COLUMN, 56VSOP
• Manufacturer: NXP Semiconductors

Specifications of PCF8579T/1

• Supply Current: 9µA
• Meter Display Type: LCD
• Supply Voltage Range: 2.5V To 6V
• Driver Case Style: VSOP
• No. Of Pins: 56
• Operating Temperature Range: -40°C To +85°C
• Base Number: 8579
• Interface: RoHS Compliant
• Interface Type: I2C
• Rohs Compliant: Yes

NXP Semiconductors
PCF8579_5
Product data sheet
Fig 7.
V
V
LCD drive mode waveforms for 1:8 multiplex rate
V
---------------------- -
V
----------------------- -
state1
state2
on RMS
off RMS
V
V
oper
oper
(t) = C1(t)
(t) = C2(t)
=
=
V
V
state 2
state 1
1
-- -
8
------------------------------ -
+
2
R1(t).
R2(t).
8
ROW 1
R1 (t)
ROW 2
R2 (t)
COL 1
C1 (t)
COL 2
C2 (t)
(t)
(t)
----------------------- -
8
8 1
8
8 1
–
8
+
0.261 V
0 V
0.261 V
0.478 V
0.261 V
0 V
0.261 V
0.478 V
–
V
V
V
V
+
1
oper
oper
oper
oper
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
1
2
DD
2
3
4
5
LCD
DD
2
3
4
5
LCD
DD
2
3
4
5
LCD
DD
2
3
4
5
LCD
=
=
oper
oper
oper
oper
oper
oper
0.430
0.297
Rev. 05 — 11 May 2009
T
fr
LCD column driver for dot matrix graphic displays
msa840
dot matrix
1:8 multiplex rate
state 1 (OFF)
state 2 (ON)
PCF8579
© NXP B.V. 2009. All rights reserved.
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