HEI HL14203 Datasheet
H L 1 4 2 0 3
LCD Driver IC
HL14203
Preliminary
2Q. 1999
Hyundai Electronics Industries
System IC Division
1
P r e l i m i n a r y
Contents
1. General Description
2. Features
3. Block Diagram
4. Pin Diagram
5. Pin Description
6. Serial I/O Data Format
7. Registers
HL14203
8. Key Scan Function
9. LCD Function
10. Power On Reset
11. Power Down Mode
12. Oscillator Port
13. Electrical Characteristics
14. Application
2
P r e l i m i n a r y
HL14203
1. General Description
The HL14203 is 1/3 duty LCD display driver. It can drive directly maximum
126 segments. Also it has four general purpose output ports and a key scan
function that accepts input from up to 30 keys.
2. Features
• LCD display ..................................... 42 segments x 3 commons
1/3 duty - 1/2 bias
1/3 duty - 1/3 bias
• Key scan ............................................ Maximum 30 keys
Input 5 pins, Output 6 pins
• Power down mode ............................. Sleep mode and all segments off mode
• Port
Output .................................................. 4 pins
( Including the LCD segment port )
• Serial I/O .............................................. Data transfer and receive
• Power on reset ..................................... Supply voltage detection ( SVD )
• RC oscillator
• Package ............................................... 64QFP
(1.6)
17.2
14.0
Unit : mm
Package Dimensions
64QFP (14×14)
17.2
14.0
1.0
0.8
1.0
48
49
64
1.0
1
0.8
0.35
16
33
32
17
(1.6)
1.0
0.15
64QFP (10×10)
12.0
10.0
48
49
12.0
10.0
64
1
0.12.7
Unit : mm
0.18
0.5
32
33
16
0.15
1.25
17
1.7max
1.25
0.5
0.5
0.1
3
P r e l i m i n a r y
3. Block Diagram
COM3
COM2
COM1
KS2 / SEG42
KS1 / SEG41
SEG40
SEG5
SEG4 / P4
HL14203
SEG1 / P1
VCL1
VCL2
VDD
VSS
OSC
TEST
COMMOM
DRIVER
LCD
BIAS
SVD
CLOCK
GENERATOR
TEST
CONTROL
RESET
CLOCK
SEGMENT
DRIVER
LCD
DISPLAY & CONTROL
REGISTER
SERIAL
I/O
KEY
SCAN
KS6
KS5
KS4
KS3
KS2
KS1
KIN5
KIN4
KIN3
KIN2
SI
SO
SCK
CE
KIN1
4
P r e l i m i n a r y
4. Pin Diagram
KS5
KS4
KS3
KS2 / SEG42
KS1 / SEG41
COM3
COM2
COM1
SEG40
SEG39
SEG38
SEG37
SEG36
SEG35
SEG34
HL14203
SEG33
KS6
KIN1
KIN2
KIN3
KIN4
KIN5
TEST
VDD
VCL1
VCL2
VSS
OSC
SO
CE
SCK
484746454443424140393837363534
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
SI
123456789101112131415
SEG1 / P1
SEG2 / P2
HL14203
SEG5
SEG6
SEG3 / P3
SEG4 / P4
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
SEG16
SEG32
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
5
P r e l i m i n a r y
5. Pin Description
PIN Name I/O Pin Number Contents
SEG[42:1] O 42 LCD SEG Pins share P1,P2,P3 and P4
COM [3:1] O 3 LCD Common Pins
VCL[2:1] I 2 LCD Bias Pins
OSC I/O 1 Oscillator Input Pin
KS[6:1] O 6 Key Scan Output Pins
KIN[5:1] I 5 Key Scan Input Pins
CE I 1 Serial I/O Control Pin
SCK I 1 Serial I/O Clock Pin
SO O 1 Serial I/O Data Output Pin
SI I 1 Serial I/O Data Input Pin
TEST I 1 Test Pin. “1” Test mode , “0” Normal Mode
P[4:1] O 4 Output Port share SEG[4:1]
VDD I 1 Power Supply Pin
HL14203
VSS I 1 Ground Pin
6
P r e l i m i n a r y
6. Serial I/O Data Format
1) Writing Mode
i )SCK is stopped at the low level
CE
SCK
HL14203
SI
SO
CE
SCK
SI
SO
CE
SCK
A0 A1 A2 A3 A4 A5 A6 A7
A0 A1 A2 A3 A4 A5 A6 A7
0 1 0 0 0 0 1 0 D1 D2 D3XX
Display data
D41
D42 0 0 0 0 S0 S1 K0 K1 P0 P1 SC DR 0 0
Control data DD
0 1 0 0 0 0 1 0 D43 D44 D45XX
Display data
D83
D84 0 0 0 0 0 0 0 0 0 0 0 0 0 1
Fixed data DD
SI
SO
A0 A1 A2 A3 A4 A5 A6 A7
D125
0 1 0 0 0 0 1 0 D85 D86 D87XX
Display data
7
D126
0 0 0 0 0 0 0 0 0 0 0 0 1 0
Fixed data DD
P r e l i m i n a r y
ii )SCK is stopped at the high level
CE
SCK
HL14203
SI
SO
CE
SCK
SI
SO
CE
SCK
SI
SO
1 0 0 0 0 1 0 0 D2 D3XX
A0 A1 A2 A3 A4 A5 A6 A7
1 0 0 0 0 1 0 0 D44 D45XX
A0 A1 A2 A3 A4 A5 A6 A7
1 0 0 0 0 1 0 0 D86 D87XX
A0 A1 A2 A3 A4 A5 A6 A7
D1
D43
D85
Display data
Display data
Display data
D41
D42 0 0 0 0 S0 S1 K0 K1 P0 P1 SC DR 0 0
Control data DD
D83
D84 0 0 0 0 S0 S1 K0 K1 P0 P1 SC DR 0 1
Fixed data DD
D125
D126
0 0 0 0 S0 S1 K0 K1 P0 P1 SC DR 1 0
Fixed data DD
A7~A0 : 42H address
D126~D1 : Data of LCD display registers
S0, S1 : Sleep control data
K0, K1 : Key scan output / Segment output selection data
P0, P1 : Segment output / general-purpose output port selection data
SC : Segment on / off control data
DR : 1/2 bias or 1/3 bias drive selection data
8
P r e l i m i n a r y
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