PCF8578T/1 NXP Semiconductors, PCF8578T/1 Datasheet - Page 15

• Manufacturer Part Number: PCF8578T/1
• Description: IC, LCD DRIVER, ROW/COLUMN, 56VSOP
• Manufacturer: NXP Semiconductors

Specifications of PCF8578T/1

• Supply Current: 20µA
• No. Of Digits / Alpha: 36
• 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: RoHS Compliant
• No. Of Segments: 384
• Interface Type: I2C
• Rohs Compliant: Yes

NXP Semiconductors
PCF8578_6
Product data sheet
Fig 9.
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. 06 — 5 May 2009
T
fr
LCD row/column driver for dot matrix graphic displays
msa836
dot matrix
1:16 multiplex rate
state 1 (OFF)
state 2 (ON)
PCF8578
© NXP B.V. 2009. All rights reserved.
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