PCF8579T NXP Semiconductors, PCF8579T Datasheet - Page 29

• Manufacturer Part Number: PCF8579T
• Manufacturer: NXP Semiconductors

Specifications of PCF8579T

• Operating Supply Voltage (typ): 3.3/5V
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Package Type: VSO
• Pin Count: 56
• Mounting: Surface Mount
• Power Dissipation: 400mW
• Operating Supply Voltage (min): 2.5V
• Operating Supply Voltage (max): 6V
• Lead Free Status / Rohs Status: Not Compliant

Fig 21. 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