LCD Driver. HT9B95B Datasheet

HT9B95B Driver. Datasheet pdf. Equivalent

HT9B95B Datasheet
Recommendation HT9B95B Datasheet
Part HT9B95B
Description RAM Mapping 39 x 8 / 43 x 4 LCD Driver
Feature HT9B95B; HT9B95A/B/G RAM Mapping 39×8 / 43×4 LCD Driver Feature • Logic Operating Voltage: 2.4V~5.5V • Int.
Manufacture Holtek Semiconductor
Datasheet
Download HT9B95B Datasheet




Holtek Semiconductor HT9B95B
HT9B95A/B/G
RAM Mapping 39×8 / 43×4 LCD Driver
Feature
Logic Operating Voltage: 2.4V~5.5V
Integrated oscillator circuitry
Bias: 1/3 or 1/4
• Internal LCD bias generation with voltage-follower
buffers
External VLCD pin to supply LCD operating voltage
• Support I2C-bus serial interface
Integrated voltage adjustment function for LCD
driving voltage
Up to 39×8 bits RAM for display data storage
• Display patterns
HT9B95A: 35×8 patterns - 35 segments and 8 commons
HT9B95B: 39×8 patterns - 39 segments and 8 commons
43×4 patterns - 43 segments and 4 commons
HT9B95G: 39×8 patterns - 39 segments and 8 commons
43×4 patterns - 43 segments and 4 commons
Support Power Save Mode for low power consumption
• Package Type
HT9B95A: 48-pin TSSOP, 52-pin LQFP
HT9B95B: 52-pin LQFP
HT9B95G: COG
Selection Table
Part No. COM SEG
Package
HT9B95A 8
35 48TSSOP, 52LQFP
HT9B95B
8
4
39
52LQFP
43
HT9B95G
8
4
39
43 COG
Applications
• Leisure products
• Telephone display
• Household appliance
• Consumer electronics
General Description
The HT9B95 is a memory mappling and multi-
function LCD controller driver. The maximum display
segments of the device are 312 patterns (39 segments
and 8 commons) or 280 patterns (35 segments and 8
commons) display depending upon which device is
selected. The software configuration feature of the
HT9B95 device makes it suitable for multiple LCD
applications including LCD modules and display
subsystems. The HT9B95 device communicates with
most microprocessors / microcontrollers via a two-wire
bidirectional I2C-bus interface.
Rev. 1.10
1 November 25, 2015



Holtek Semiconductor HT9B95B
Block Diagram
Power ON
Reset
SCL
SDA
VDD
VLCD
VSS
I2C
Controller
Display
RAM
Internal
Oscillator
Timing
Generator
_
OP
+
_
OP
+
_ LCD
OP Voltage
+ Selector
_
OP
+
LCD Bias Generator
HT9B95A/B/G
Segment
driver
output
SEG0
SEG1
SEG2
SEG38
Common
/Segment
driver
output
COM0/SEG39
COM1/SEG40
COM2/SEG41
COM3/SEG42
Common
driver
output
COM4/COM0
COM5/COM1
COM6/COM2
COM7/COM3
Rev. 1.10
2 November 25, 2015



Holtek Semiconductor HT9B95B
Pin Assignment
VDD
VLCD
VSS
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
SDA
SCL
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
SEG32
SEG33
SEG34
COM0
COM1
COM2
COM3
COM4
COM5
COM6
COM7
HT9B95A
48 TSSOP-A
HT9B95A/B/G
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
COM7
COM6
COM5
COM4
COM3
COM2
COM1
39 38 37 36 35 34 33 32 31 30 29 28 27
40 26
41 25
42 24
43 23
44 22
45
46
47
HT9B95A
52 LQFP-A
21
20
19
48 18
49 17
50 16
51 15
52 14
1 2 3 4 5 6 7 8 9 10 11 12 13
SEG18
SEG19
SEG20
VSS
VLCD
VDD
SDA
SCL
SEG21
SEG22
SEG23
SEG24
SEG25
SEG4
SEG3
SEG2
SEG1
SEG0
COM7/COM3
COM6/COM2
COM5/COM1
COM4/COM0
COM3/SEG42
COM2/SEG41
COM1/SEG40
COM0/SEG39
39 38 37 36 35 34 33 32 31 30 29 28 27
40 26
41 25
42 24
43 23
44 22
45
46
47
HT9B95B
52 LQFP-A
21
20
19
48 18
49 17
50 16
51 15
52 14
1 2 3 4 5 6 7 8 9 10 11 12 13
SEG18
SEG19
SEG20
VSS
VLCD
VDD
SDA
SCL
SEG21
SEG22
SEG23
SEG24
SEG25
Rev. 1.10
3 November 25, 2015







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