HT0313A Tomato LSI, Inc., HT0313A Datasheet - Page 23

• Manufacturer Part Number: HT0313A
• Description: 65COM/132SEG DRIVER & CONTROLLER FOR STN LCD
• Manufacturer: Tomato LSI, Inc.

HT0313A
TOMATO LSI Inc.
Table 6-5. The relationship between duty ratio and common output
6-4. LCD DRIVER CIRCUIT
c. Common output control circuit
This circuit controls the relationship between the number of common output and specified duty ratio. SHL
select instruction specifies the scanning direction of the common output pins.
This driver circuit is configured by 66-channel common drivers (including 2 COMS channels) and 132-
channel segment drivers. This LCD panel driver voltage depends on the combination of display data and
M signal.
Duty
1/33
1/49
1/65
COM10
COM11
COM12
COM13
COM14
COM15
COM0
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
COM9
SHL
H
H
L
L
L
H
65COM / 132SEG DRIVER & CONTROLLER FOR STN LCD
COM[31:16]
COM[0:15]
COM[0:15]
23
COM0
COM1
COM2
SEG0
SEG1
SEG2
COM[47:24]
COM[0:23]
M
Figure 6-8. Segment and common timing
COM[16:23]
COM[24:39]
COM[0:63]
COM[63:0]
Common output pins
Open
Open
Open
Open
COM[40:47]
COM[24:47]
COM[23:0]
COM[48:63]
COM[16:31]
COM[15:0]
Ver 0.0
COMS
COMS
COMS
COMS
VDD
VSS
VSS
VSS
VSS
VSS
VSS
VSS
V0
V1
V2
V3
V4
V0
V1
V2
V3
V4
V0
V1
V2
V3
V4
V0
V1
V2
V3
V4
V0
V1
V2
V3
V4
V0
V1
V2
V3
V4