NJU6533
1/3, 1/4 Duty LCD Driver
GENERAL DESCRIPTION
NJU6533
is a 1/3 or 1/4 duty segment type LCD driver.
It incorporates 4 common driver circuits and 32 segment driver
circuits.
NJU6533
can drive maximum 96 segments in 1/3
duty ratio and maximum 128 segments in 1/4 duty ratio.
Be addition,
the
NJU6533's
useful functions and small
package meet a wide range of applications.
PACKAGE OUTLINE
NJU6533C
NJU6533KQ1
FEATURES
LCD driving circuit
Programmable Duty Ratio
1/3 duty ratio
1/4 duty ratio
Programmable Bias Ratio
Serial Data Transfer
Built-in Oscillator
Display OFF
Operating Voltage
C-MOS Technology
Package Outline
NJU6533FA2
:Max. 32outputs (4 outputs as for general purpose ports)
NJU6533FH2
NJU6533FR3
:Driving max. 96 segments
:Driving max. 128 segments
:1/2, 1/3 bias ratio
:Shift clock max. 2MHz
:CR
oscillation with external resistor, or external oscillation signal input
:INHb terminal
:3V / 5.0V
:P-Sub
:Bare Chip, QFN48-Q1, QFP52-A2, LQFP52-H2, LQFP48-R3
BLOCK DIAGRAM
COM1
V
DD
V
LCD
V
1
V
2
V
SS
INHb
OSC1
COM
Drivers
COM4 SEG1
SEG8
SEG9
SEG16 SEG17
SEG24
SEG25
SEG32/P4
Segment Drivers /General Purpose Output Ports
Data Latch Circuit
Oscillator
OSC2
CSb
SCK
SI
RSTb
Display Data Register
Decoder
Command Register
Power ON Reset Circuit
Ver.2011-09-17
-1-
NJU6533
PAD LOCATION
36 35 34 33 32 31 30 29 28 27 26 25
37
38
39
40
41
42
43
44
45
46
47
48
1
2 3 4
5 6
7 8
9 10 11 12
TOP VIEW
24
23
22
21
20
19
18
17
16
15
14
13
Chip Center
Chip Size
Chip Thickness
PAD Size
PAD Pitch
Sub Striate
: X=0µm, Y=0µm
: X= 2.60 mm, Y= 2.36 mm
: 625µm
±
25
µm
: 90.0
µm
x 90.0
µm
: 126µm
:P
PAD COORDINATES
PAD No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
PAD NAME
COM1
COM2
COM3
COM4
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
X=
µm
-686
-560
-434
-308
-182
-56
70
196
322
448
574
700
1138
1138
1138
1138
1138
1138
1138
1138
1138
1138
1138
1138
Chip Size 2.60 x 2.36 mm(Chip Center X=0µm, Y=0µm)
PAD No. PAD NAME
Y=
µm
X=
µm
Y=
µm
-1019
25
SEG21
784
1019
-1019
26
SEG22
658
1019
-1019
27
SEG23
532
1019
-1019
28
SEG24
406
1019
-1019
29
SEG25
280
1019
-1019
30
SEG26
154
1019
-1019
31
SEG27
28
1019
-1019
32
SEG28
-98
1019
-1019
33
SEG29/P1
-356
1019
-1019
34
SEG30/P2
-482
1019
-1019
35
SEG31/P3
-837
1019
-1019
36
SEG32/P4
-963
1019
-739
37
VL
CD
-1138
914
-613
38
V
1
-1138
790
-487
39
V
2
-1138
557
-361
40
V
SS
-1138
432
-235
41
INHb
-1138
236
-109
42
RSTb
-1138
112
17
43
CSb
-1138
-121
143
44
SI
-1138
-245
269
45
SCK
-1138
-479
395
46
V
DD
-1138
-603
521
47
OSC1
-1138
-845
647
48
OSC2
-1138
-971
-2-
Ver.2011-09-17
NJU6533
PIN CONFIGURATION
•
QFN48-Q1 / LQFP48-R3
SEG32/P4
SEG31/P3
SEG30/P2
SEG29/P1
SEG22
SEG21
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
•
QFP52-A2 / LQFP52-H2
SEG32/P4
SEG31/P3
SEG30/P2
SEG29/P1
SEG26
SEG23
SEG21
27
SEG28
SEG27
SEG25
SEG24
SEG22
28
39
N.C.
38
37
36
35
34
33
32
31
30
36
35
34
33
32
31
30
29
28
27
V
LCD
V
1
V
2
V
SS
INHb
RSTb
CSb
SI
SCK
V
DD
OSC1
OSC2
37
38
39
40
41
42
43
44
45
46
47
48
8
9
1
2
3
4
5
6
7
26
25
24
23
22
21
20
19
18
17
16
15
14
13
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
V
LCD
V
1
V
2
V
SS
INHb
RSTb
CSb
SI
SCK
V
DD
OSC1
OSC2
29
40
41
42
43
44
45
46
47
48
49
50
51
10
12
11
1
2
3
4
5
6
7
9
13
52
8
26
25
24
23
22
N.C.
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
NJU6533KQ1
NJU6533FR3
NJU6533FA2
NJU6533FH2
21
20
19
18
17
16
15
14
10
SEG6
COM1
COM2
COM3
COM4
SEG7
SEG8
SEG1
SEG2
SEG3
SEG4
SEG5
11
12
N.C.
COM1
COM3
COM4
SEG6
SEG7
SEG1
SEG2
SEG3
SEG4
SEG5
SEG8
Ver.2011-09-17
COM2
N.C.
-3-
NJU6533
TERMINAL DISCRIPTION
No.
Bare Chip
46
37
38,
39
40
QFN48-Q1 QFP52-A2
LQFP48-R3 LQFP52-H2
Pad Name
Function
46
37
38,
39
40
49
40
41,
42
43
V
DD
V
LCD
V
1
,
V
2
V
SS
41
41
44
INHb
42
43
44
45
47,
48
1~4
5~32
42
43
44
45
47,
48
1~4
5~32
45
46
47
48
50,
51
1~4
5~12,
14~25,
27~34
RSTb
CSb
SI
SCK
OSC1,
OSC2
COM1 ~
COM4
SEG1 ~
SEG28
Power supply: 3V /5V
LCD driving voltage
V
LCD
≥
V
1
≥
V
2
≥
V
SS
, V
LCD
≥V
DD
Bias
At 1/3 bias ratio, keep V
1
- V
2
open.
At 1/2 bias ratio, short V
1
- V
2
.
GND
V
SS
=0V
Display OFF *
When INHb is "H", display is ON, and when INHb is "L",
display is off.
When SEG29(P1)~SEG32 (P4) are selected as general
purpose output ports, even if input “0” to INHb terminal,
SEG29~32 will still be recognized as general purpose
output ports.
Reset
When RSTb is “L", command register and latch circuit is
reset.
Chip select
When CSb is "L", data can be read in.
Serial data input (8 bit=1word)
Serial clock
External resistor connection terminal for CR oscillation, or
external clock input terminal
When external clock is used, input the signal to OSC1 and
keep OSC2 open.
Common driver outputs
Segment driver outputs
Segment driver outputs/general purpose output ports
These 4 terminals can be used as segment outputs or
general purpose output ports by setting Command
SEG29/P1~
Register.
33~36
33~36
35~39
When selected as general purpose ports, data can be
SEG32/P4
outputted via these ports during COM1 timing.
According to transferred data, "H"=V
DD
or "L"=V
SS
will
be outputted.
Non Connection
13,26,
-
-
NC
These pins must be open.
39,52
*: For details about INHb, please refer to "
FUNCTION DESCRIPTION
(5) Display OFF function (INHb terminal)".
-4-
Ver.2011-09-17
NJU6533
FUNCTION DESCRIPTION
(1) Block Function
•
Oscillator
The oscillator includes a built-in capacitor and an external resistor. It generates clock signal for LCD driving. When
use external clock, input the clock signal to OSC1 and keep OSC2 open.
•
Decoder
Input serial data is decoded and sent to the appropriate block.
Command Register
Command data is written to this 8 bits command register to control
NJU6533
operation.
Display Data Register
Data is written to this 8 bits register as display data.
Latch Circuit
Data stored in display data register is assigned to the corresponding SEG/port.
Segment Driver/General Purpose Ports
Basing on display data, segment drivers output LCD SEG driving signal.
And, SEG29/P1 ~ SEG32/P4 terminals can be selected as segment driver output or general-purpose ports by instruction.
Common Driver
Common drivers output LCD COM driving signal.
Power On Reset
When power is on,
NJU6533
is automatically initialized. And if RSTb=”L”,
NJU6533
is reset too.
•
•
•
•
•
•
Ver.2011-09-17
-5-
DSP 与 ARM 处理器
