OM4068H/2,518 NXP Semiconductors, OM4068H/2,518 Datasheet - Page 11

• Manufacturer Part Number: OM4068H/2,518
• Description: IC LCD DRIVER 44-QFP
• Manufacturer: NXP Semiconductors

Specifications of OM4068H/2,518

• Package / Case: 44-MQFP, 44-PQFP
• Display Type: LCD
• Configuration: 32 Segment
• Interface: Serial
• Current - Supply: 12µA
• Voltage - Supply: 2.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Number Of Digits: 12
• Number Of Segments: 96
• Maximum Clock Frequency: 2.1 MHz
• Operating Supply Voltage: 2.5 V to 5.5 V
• Maximum Power Dissipation: 500 mW
• Maximum Operating Temperature: + 105 C
• Attached Touch Screen: No
• Maximum Supply Current: 25 uA
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Digits Or Characters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-4513-2; 935276329518; OM4068HB-T; OM4068HB-T

Philips Semiconductors
1 : 2 M
When two backplanes are provided in the LCD, the 1 : 2 multiplex mode applies, as shown in Fig.6.
1 : 3 M
When three backplanes are provided in the LCD, the 1 : 3 multiplex mode applies, as shown in Fig.7.
1998 Jun 18
LCD driver for low multiplex rates
BP1
BP2
SEG N
SEG N
SEG N
SEG N
BP2
DRIVER OUTPUTS
ULTIPLEX DRIVE MODE
ULTIPLEX DRIVE MODE
BP1
BACKPLANE
1
2
3
1/2V LCD
1/2V LCD
1/2V LCD
1/2V LCD
1/2V LCD
1/2V LCD
V LCD
V LCD
V LCD
V LCD
V LCD
V LCD
V SS
V SS
V SS
V SS
V SS
V SS
Fig.6 Waveforms for 1 : 2 multiplex drive mode (V
T frame
off
off
SEG N
SEG N + 1 SEG N + 2 SEG N + 3
on
off
SEGMENTS
1/2V LCD
1/2V LCD
1/2V LCD
1/2V LCD
1/2V LCD
1/2V LCD
1/2V LCD
1/2V LCD
V LCD
V LCD
V LCD
V LCD
V LCD
V LCD
V LCD
V LCD
0 V
0 V
0 V
0 V
off
on
11
SEG - BP1
T frame
on
on
OP
= V
MBK820
1/2V LCD
1/2V LCD
1/2V LCD
1/2V LCD
1/2V LCD
1/2V LCD
1/2V LCD
1/2V LCD
LCD
V LCD
V LCD
V LCD
V LCD
V LCD
V LCD
V LCD
V LCD
0 V
0 V
0 V
0 V
V
SS
).
SEG - BP2
T frame
Product specification
pagewidth
OM4068
full
handbook,