PCF8579T NXP Semiconductors, PCF8579T Datasheet - Page 31

• 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 23. Split screen application with 1:32 multiplex rate
V
SCL
SDA
DD
C
C
C
C
C
V
V
LCD
DD
R
R
R
R
(4 2 3)R
V
SS
V
V
V
V
V
V
SDA
V
DD
2
3
4
5
SS
LCD
(ROW MODE)
SCL
PCF8578
CLK SYNC
OSC
SA0
unused columns
V
V
SS
SS
R ext(OSC)
/V
subaddress k 1
8
DD
rows
32
V
DD
V
SA0
A3
A2
A1
A0
V
V
V
DD
V
V
V
DD
SS
4
SS
LCD
3
SDA
SYNC
SCL
PCF8579
PCF8579
CLK
#1
#k
CLK SYNC
SCL SDA SA0
40
columns
40
columns
LCD DISPLAY
V
V
V
V
LCD
V
SS
SS
V
V
DD
A0
A1
A2
A3
SS
3
4
subaddress 0
V
DD
subaddress 1
V
DD
V
SA0
V
V
V
A3
A2
A1
A0
V
DD
V
V
DD
SS
4
SS
LCD
3
SDA
1:32 multiplex rate
32
(20480 dots max.)
1:32 multiplex rate
32
(20480 dots max.)
SYNC
40
40
SCL
PCF8579
PCF8579
CLK
k dots (k
k dots (k
#2
#2
CLK SYNC
SCL SDA SA0
40
columns
40
columns
16)
16)
V
V
V
V
LCD
V
SS
SS
V
V
DD
A0
A1
A2
A3
SS
3
4
subaddress 1
V
DD
subaddress 0
V
DD
V
V
V
V
SA0
A3
A2
A1
A0
V
V
V
DD
DD
SS
4
SS
LCD
3
SDA
SYNC
SCL
PCF8579
PCF8579
CLK
#1
#k
CLK SYNC
SCL SDA SA0
40
columns
40
columns
V
V
V
V
LCD
V
SS
SS
DD
A0
A1
A2
A3
V
V
SS
subaddress k 1
3
4
V
DD
32
msa846