PCF8578TD NXP Semiconductors, PCF8578TD Datasheet - Page 34

• Manufacturer Part Number: PCF8578TD
• Description: LCD Drivers LCD DRVR DOT MATRIX
• Manufacturer: NXP Semiconductors

Specifications of PCF8578TD

• Number Of Digits: 32
• Number Of Segments: 384
• Maximum Clock Frequency: 3.3 KHz
• Operating Supply Voltage: 2.5 V to 6 V
• Maximum Power Dissipation: 400 mW
• Maximum Operating Temperature: + 150 C
• Package / Case: VSO-56
• Maximum Supply Current: 50 uA
• Minimum Operating Temperature: - 65 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: PCF8578T/1,112

Fig 25. Typical LCD driver system with 1:32 multiplex rate
SCL
SDA
V
DD
C
C
C
C
C
V
V
R
R
(4 2 3)R
R
R
LCD
DD
V
SS
V
V
V
V
V
V
V
SDA
DD
2
3
4
5
LCD
SS
(ROW MODE)
SCL
PCF8578
CLK SYNC
OSC
SA0
unused columns
V
SS
R ext(OSC)
V
SS
8
rows
32
V
DD
V SS
V
V
V
V
V
SS
DD
LCD
3
4
SYNC
PCF8579
CLK
#1
SCL SDA SA0
40
columns
V SS
A0
A1
A2
A3
subaddress 0
LCD DISPLAY
V
DD
V
V
V
V
V
V
SS
DD
LCD
3
4
SS
SYNC
PCF8579
CLK
#2
SCL SDA SA0
40
columns
V
A0
A1
A2
A3
SS
1:32 multiplex rate
32
(20480 dots max.)
subaddress 1
40
k dots (k
V
DD
V
16)
V
V
V
V
V
SS
SS
DD
LCD
3
4
SYNC
PCF8579
CLK
#k
SCL SDA SA0
40
columns
msa845
V
A0
A1
A2
A3
subaddress k 1
SS