LC75834W [SANYO]
1/4 Duty General-Purpose LCD Drivers; 1/4占空比通用LCD驱动器
| 型号： | LC75834W |
| 厂家： | 
SANYO SEMICON DEVICE |
| 描述： | 1/4 Duty General-Purpose LCD Drivers |
| 文件： | 总18页 (文件大小：343K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : EN5597
CMOS LSI
LC75834E, 75834W, 75834JE
1/4 Duty General-Purpose
LCD Drivers
Overview
Package Dimensions
unit: mm
The LC75834E, LC75834W, and LC75834JE are 1/4-duty
general-purpose LCD drivers that can be used for
frequency display in electronic tuners under the control of
a microcontroller. The LC75834E and LC75834W can
drive an LCD with up to 136 segments directly, the
LC75834JE can drive an LCD with up to 120 segments
directly. The LC75834E and LC75834W and LC75834JE
can also control up to 8 general-purpose output ports.
Since the LC75834E, LC75834W, and LC75834JE use
separate power supply systems for the LCD drive block
and the logic block, the LCD driver block power-supply
voltage can be set to any voltage in the range 2.7 to 6.0
volts, regardless of the logic block power-supply voltage.
3156-QFP48E
[LC75834E]
SANYO: QFP48E
Features
unit: mm
3163A-SQFP48
• Supports both 1/4 duty 1/2 bias and 1/4 duty 1/3 bias
LCD drive under serial data control.
[LC75834W]
LC75834E, LC75834W:
LC75834JE:
up to 136 segments
up to 120 segments
(without the S9, S18, S27, S34 segment output pins
from the LC75834E, LC75834W)
• Serial data input supports CCB* format communication
with the system controller.
• Serial data control of the power-saving mode based
backup function and all the segments forced off function
• Serial data control of switching between the segment
output port and the general-purpose output port
functions
SANYO: SQFP48
• High generality, since display data is displayed directly
without decoder intervention.
unit: mm
• Independent V
for the LCD driver block (V
can
3148-QFP44MA
LCD
LCD
be set to any voltage in the range 2.7 to 6.0 volts,
regardless of the logic block power-supply voltage.)
• The INH pin can force the display to the off state.
• RC oscillator circuit
[LC75834JE]
•
•
CCB is a trademark of SANYO ELECTRIC CO., LTD.
CCB is a SANYO’s original bus format and all the
bus addresses are controlled by SANYO.
SANYO: QIP44MA
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
63097HA (OT) No. 5597-1/18
LC75834E, 75834W, 75834JE
Specifications
Absolute Maximum Ratings at Ta = 25°C, V = 0 V
SS
Parameter
Maximum supply voltage
Symbol
Conditions
Ratings
Unit
V
V
max
max
1
V
V
–0.3 to +7.0
–0.3 to +7.0
–0.3 to +7.0
DD
DD
V
V
LCD
V
LCD
CE, CL, DI, INH
OSC
V
IN
Input voltage
Output voltage
Output current
V
2
3
–0.3 to V
+ 0.3
+ 0.3
+ 0.3
+ 0.3
300
3
V
IN
DD
V
V
1, V
2
LCD
–0.3 to V
V
IN
LCD
LCD
OSC
V
V
I
1
2
–0.3 to V
–0.3 to V
V
OUT
OUT
DD
S1 to S34, COM1 to COM4, P1 to P8
V
LCD
1
S1 to S34
µA
mA
mA
mW
°C
°C
OUT
OUT
OUT
I
I
2
3
COM1 to COM4
P1 to P8
5
Allowable power dissipation
Operating temperature
Storage temperature
Pd max
Topr
Ta = 85°C
150
–40 to +85
Tstg
–55 to +125
Note: The LC75834JE do not have the S9, S18, S27 S34 output pins.
Allowable Operating Ranges at Ta = –40 to +85°C, V = 0 V
SS
Ratings
typ
Parameter
Symbol
Conditions
Unit
min
2.7
2.7
max
6.0
V
V
V
V
V
V
V
DD
DD
Supply voltage
V
6.0
LCD
LCD
LCD
LCD
V
V
1
2
1
2
2/3 V
V
V
LCD
LCD
LCD
Input voltage
1/3 V
V
V
LCD
LCD
LCD
Input high-level voltage
Input low-level voltage
Recommended external resistance
Recommended external capacitance
Guaranteed oscillation range
Data setup time
V
CE, CL, DI, INH
CE, CL, DI, INH
OSC
0.8 V
6.0
V
IH
DD
0
V
IL
0.2 V
DD
V
R
43
680
50
kΩ
pF
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
OSC
OSC
OSC
C
OSC
f
OSC
25
160
160
160
160
160
160
160
100
t
CL, DI: Figure 2
CL, DI: Figure 2
CE, CL: Figure 2
CE, CL: Figure 2
CE, CL: Figure 2
CL: Figure 2
ds
Data hold time
t
dh
CE wait time
t
cp
CE setup time
t
cs
CE hold time
t
ch
High-level clock pulse width
Low-level clock pulse width
Rise time
t
øH
t
CL: Figure 2
øL
t
r
CE, CL, DI: Figure 2
CE, CL, DI: Figure 2
INH, CE: Figure 3
160
160
Fall time
t
f
INH switching time
t
10
c
No. 5597-2/18
LC75834E, 75834W, 75834JE
Electrical Characteristics for the Allowable Operating Ranges
Ratings
typ
Parameter
Hysteresis width
Symbol
Conditions
CE, CL, DI, INH
Unit
min
max
V
H
0.1 V
V
µA
µA
V
DD
Input high level current
Input low level current
I
CE, CL, DI, INH; V = 6.0 V
I
5.0
IH
I
CE, CL, DI, INH; V = 0 V
I
–5.0
– 0.9
– 0.9
– 0.9
IL
V
V
V
1
2
3
1
2
3
S1 to S34; I = –20 µA
O
V
V
V
OH
OH
OH
LCD
LCD
LCD
Output high-level voltage
Output low-level voltage
COM1 to COM4; I = –100 µA
O
V
P1 to P8; I = –1 mA
O
V
V
V
V
S1 to S34; I = 20 µA
O
0.9
0.9
0.9
V
OL
OL
OL
COM1 to COM4; I = 100 µA
O
V
P1 to P8; I = 1 mA
O
V
COM1 to COM4; 1/2 bias,
V
V
V
V
V
1
1/2 V
2/3 V
1/3 V
2/3 V
1/3 V
– 0.9
– 0.9
– 0.9
– 0.9
1/2 V
2/3 V
1/3 V
2/3 V
1/3 V
+ 0.9
+ 0.9
+ 0.9
+ 0.9
+ 0.9
V
V
V
V
V
MID
MID
MID
MID
MID
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
I
= ±100 µA
O
S1 to S34; 1/3 bias,
= ±20 µA
2
3
4
5
I
O
Output middle-level voltage*1
S1 to S34; 1/3 bias,
= ±20 µA
I
O
COM1 to COM4; 1/3 bias,
= ±100 µA
I
O
COM1 to COM4; 1/3 bias,
= ±100 µA
– 0.9
40
I
O
Oscillator frequency
Current drain
f
OSC; R
= 43 kΩ C = 680 pF
OSC
50
60
5
kHz
µA
µA
µA
OSC
OSC
I
I
1
V
V
; power saving mode
DD
DD
2
; V = 6.0 V, output open, fosc = 50 k Hz
DD
230
460
5
DD
DD
I
1
V
; power saving mode
LCD
LCD
V
; V
= 6.0 V, output open
LCD LCD
I
I
2
3
100
60
200
120
µA
µA
LCD
1/2 bias, fosc = 50 k Hz
V
; V = 6.0 V, output open
LCD LCD
1/3 bias, fosc = 50 k Hz
LCD
Note: *1 Excluding the bias voltage generation divider resistors built in the V
1 and V 2. (See Figure 1.)
LCD LCD
The LC75834JE do not have the S9, S18, S27, S34 output pins.
No. 5597-3/18
LC75834E, 75834W, 75834JE
V
LCD
V
V
1
2
LCD
To the common segments drivers
LCD
Except these resistors
V
SS
A06588
Figure 1
1. When CL is stopped at the low level
2. When CL is stopped at the high level
Figure 2
No. 5597-4/18
LC75834E, 75834W, 75834JE
Pin Assignments
Block Diagram
Common
driver
Segment driver & latch
INH
Clock
generator
OSC
Shift register
V
DD
V
LCD
V
V
1
LCD
LCD
Address
detector
2
V
SS
A06591
Note: The LC75834JE do not have the S9, S18, S27, S34 output pins.
No. 5597-5/18
LC75834E, 75834W, 75834JE
Pin Functions
Pin No.
Handling
when unused
Pin
Function
Active
—
I/O
O
LC75834E,
75834W
LC75834JE
1 to 8
S1/P1 to
S8/P8
S9 to S34
1 to 8
Segment outputs for displaying the display data transferred by serial data
input. The pins S1/P1 to S8/P8 can be used as general-purpose output ports
when so set up by the control data.
Open
Open
9 to 34
9 to 30
35
36
37
38
31
32
33
34
COM1
COM2
COM3
COM4
Common driver outputs.
—
O
The frame frequency f is given by: f = (f /512) Hz.
OSC
O
O
Oscillator connection
An oscillator circuit is formed by connecting an external resistor and capacitor
V
I/O
I
OSC
—
H
44
40
DD
CE
CL
DI
46
47
48
42
43
44
Serial data transfer inputs. These
pins are connected to the control
microprocessor.
CE: Chip enable
CL: Synchronization clock
DI: Transfer data
GND
—
Display off control input
•INH = low (V ): Off
SS
S1/P1 to S8/P8 = Low
(These pins are forcible set to the segment output port
function and fixed at the V level.)
SS
INH
45
41
L
I
GND
S9 to S34 = Low (V ),
SS
COM1 to COM4 = Low (V
)
SS
•INH = high (V ): On
DD
Note that serial data transfers can be performed when the
display is forced off by this pin.
Used to apply the LCD drive 2/3-bias voltage externally. This pin must be
V
V
1
2
41
42
37
38
—
—
I
I
Open
Open
LCD
connected to V
2 when 1/2-bias drive is used.
LCD
Used to apply the LCD drive 1/3-bias voltage externally. This pin must be
connected to V 1 when 1/2-bias drive is used.
LCD
LCD
V
39
40
43
35
36
39
Logic block power supply. Provide a voltage in the range 2.7 to 6.0 V.
LCD driver block power supply. Provide a voltage in the range 2.7 to 6.0 V.
Ground pin. Connect to ground.
—
—
—
—
—
—
—
—
—
DD
V
LCD
V
SS
Note: The LC75834JE do not have the S9, S18, S27, S34 output pins.
No. 5597-6/18
LC75834E, 75834W, 75834JE
Serial Data Transfer Format
1. When CL is stopped at the low level
Note: DD ... Direction data
No. 5597-7/18
LC75834E, 75834W, 75834JE
2. When CL is stopped at the high level
Note: DD ... Direction data
• CCB address...............46H
• D1 to D136.................Display data (At the LC75834JE, the display data D33 to D36, D69 to D72, D105 to D108,
D133 to D136 must be set to 0.
• P0 to P3......................Segment output port/general-purpose output port switching control data
• DR..............................1/2-bias drive or 1/3-bias drive switching control data
• SC...............................Segments on/off control data
• BU..............................Normal mode/power-saving mode control data
No. 5597-8/18
LC75834E, 75834W, 75834JE
Serial Data Transfer Examples
• At the LC75834E and LC75834W when109 or more segments are used, at the LC75834JE when 97 or more segments
are used,192 bits of serial data must be sent.
Note: At the LC75834JE, the display data D33 to D36, D69 to D72, D105 to D108, D133 to D136 must be set to 0.
• At the LC75834E and LC75834W when used with less than 109 segments, at the LC75834JE when used with less than
97 segments, transfer either 48 bits, 96 bits or 144 bits of serial data depending on the number of segments used.
However, the serial data shown in the figure below (the display data D1 to D36 and the control data) must be sent.
Note: At the LC75834JE, the display data D33 to D36 must be set to 0.
Control Data Functions
1. P0 to P3: Segment output port/general-purpose output port switching control data.
These control data bits switch the S1/P1 to S8/P8 output pins between their segment output port and general-purpose
output port functions.
Control data
Output pin states
P0
0
P1
0
P2
0
P3
0
S1/P1 S2/P2 S3/P3 S4/P4 S5/P5 S6/P6 S7/P7 S8/P8
S1
P1
P1
P1
P1
P1
P1
P1
P1
S2
S2
P2
P2
P2
P2
P2
P2
P2
S3
S3
S3
P3
P3
P3
P3
P3
P3
S4
S4
S4
S4
P4
P4
P4
P4
P4
S5
S5
S5
S5
S5
P5
P5
P5
P5
S6
S6
S6
S6
S6
S6
P6
P6
P6
S7
S7
S7
S7
S7
S7
S7
P7
P7
S8
S8
S8
S8
S8
S8
S8
S8
P8
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
0
1
1
1
1
0
0
0
Note: Sn (n = 1 to 8): Segment output ports
Pn (n = 1 to 8): General-purpose output ports
No. 5597-9/18
LC75834E, 75834W, 75834JE
Also note that when the general-purpose output port function is selected, the output pins and the display data will
have the correspondences listed in the tables below.
Output pin
S1/P1
Corresponding display data
Output pin
S5/P5
Corresponding display data
D1
D5
D17
D21
D25
D29
S2/P2
S6/P6
S3/P3
D9
S7/P7
S4/P4
D13
S8/P8
For example, if the output pin S4/P4 has the general-purpose output port function selected, it will output a high level
(V ) when the display data D13 is 1, and will output a low level (V ) when D13 is 0.
LCD
SS
2. DR: 1/2-bias drive or 1/3-bias drive switching control data
This control data bit selects either 1/2-bias drive or 1/3-bias drive.
DR
0
Drive type
1/3-bias drive
1/2-bias drive
1
3. SC: Segments on/off control data
This control data bit controls the on/off state of the segments.
SC
0
Display state
On
Off
1
However, note that when the segments are turned off by setting SC to 1, the segments are turned off by outputting
segment off waveforms from the segment output pins.
4. BU: Normal mode/power-saving mode control data
This control data bit selects either normal mode or power-saving mode.
BU
0
Mode
Normal mode
Power saving mode (The OSC pin oscillator is stopped, and the common and segment output pins go to the VSS level. However, the
S1/P1 to S8/P8 output pins that are set to be general-purpose output ports by the control data P0 to P3 can be used as general-
purpose output ports.)
1
No. 5597-10/18
LC75834E, 75834W, 75834JE
Display Data to Segment Output Pin Correspondence
Segment
output pin
Segment
output pin
COM1
COM2
COM3
COM4
COM1
COM2
COM3
COM4
S1/P1
S2/P2
S3/P3
S4/P4
S5/P5
S6/P6
S7/P7
S8/P8
S9
D1
D2
D3
D4
S18
S19
S20
S21
S22
S23
S24
S25
S26
S27
S28
S29
S30
S31
S32
S33
S34
D69
D73
D70
D74
D71
D75
D72
D76
D5
D6
D7
D8
D9
D10
D14
D18
D22
D26
D30
D34
D38
D42
D46
D50
D54
D58
D62
D66
D11
D15
D19
D23
D27
D31
D35
D39
D43
D47
D51
D55
D59
D63
D67
D12
D16
D20
D24
D28
D32
D36
D40
D44
D48
D52
D56
D60
D64
D68
D77
D78
D79
D80
D13
D17
D21
D25
D29
D33
D37
D41
D45
D49
D53
D57
D61
D65
D81
D82
D83
D84
D85
D86
D87
D88
D89
D90
D91
D92
D93
D94
D95
D96
D97
D98
D99
D100
D104
D108
D112
D116
D120
D124
D128
D132
D136
D101
D105
D109
D113
D117
D121
D125
D129
D133
D102
D106
D110
D114
D118
D122
D126
D130
D134
D103
D107
D111
D115
D119
D123
D127
D131
D135
S10
S11
S12
S13
S14
S15
S16
S17
Note: This applies to the case where the S1/P1 to S8/P8 output pins are set to be segment output ports.
The LC75834JE do not have the S9, S18, S27, S34 output pins.
For example, the table below lists the segment output states for the S11 output pin.
Display data
Segment output pin (S11) state
D41
0
D42
0
D43
0
D44
0
The LCD segments corresponding to COM1 to COM4 are off.
0
0
0
1
The LCD segments corresponding to COM4 is on.
0
0
1
0
The LCD segments corresponding to COM3 is on.
0
0
1
1
The LCD segments corresponding to COM3 and COM4 are on.
The LCD segments corresponding to COM2 is on.
0
1
0
0
0
1
0
1
The LCD segments corresponding to COM2 and COM4 are on.
The LCD segments corresponding to COM2 and COM3 are on.
The LCD segments corresponding to COM2, COM3 and COM4 are on.
The LCD segments corresponding to COM1 is on.
0
1
1
0
0
1
1
1
1
0
0
0
1
0
0
1
The LCD segments corresponding to COM1 and COM4 are on.
The LCD segments corresponding to COM1 and COM3 are on.
The LCD segments corresponding to COM1, COM3 and COM4 are on.
The LCD segments corresponding to COM1 and COM2 are on.
The LCD segments corresponding to COM1, COM2 and COM4 are on.
The LCD segments corresponding to COM1 to COM3 are on.
The LCD segments corresponding to COM1 to COM4 are on.
1
0
1
0
1
0
1
1
1
1
0
0
1
1
0
1
1
1
1
0
1
1
1
1
No. 5597-11/18
LC75834E, 75834W, 75834JE
1/2 Bias, 1/4 Duty Drive Technique
COM1
COM2
COM3
COM4
LCD driver output when all LCD
segments corresponding to COM1,
COM2, COM3, and COM4 are turned off.
LCD driver output when only LCD
segments corresponding to COM1 are
on.
LCD driver output when only LCD
segments corresponding to COM2 are
on.
LCD driver output when LCD segments
corresponding to COM1 and COM2 are
on.
LCD driver output when only LCD
segments corresponding to COM3 are
on.
LCD driver output when LCD segments
corresponding to COM1 and COM3 are
on.
LCD driver output when LCD segments
corresponding to COM2 and COM3 are
on.
LCD driver output when LCD segments
corresponding to COM1, COM2, and
COM3 are on.
LCD driver output when only LCD
segments corresponding to COM4 are
on.
LCD driver output when LCD segments
corresponding to COM2 and COM4 are
on.
LCD driver output when all LCD
segments corresponding to COM1,
COM2,COM3, and COM4 are on.
1/2 Bias, 1/4 Duty Waveforms
No. 5597-12/18
LC75833E, 75833W, 75833JE
1/3 Bias, 1/4 Duty Drive Technique
COM1
COM2
COM3
COM4
LCD driver output when all LCD
segments corresponding to COM1,
COM2, COM3, and COM4 are turned off.
LCD driver output when only LCD
segments corresponding to COM1 are
on.
LCD driver output when only LCD
segments corresponding to COM2 are
on.
LCD driver output when LCD segments
corresponding to COM1 and COM2 are
on.
LCD driver output when only LCD
segments corresponding to COM3 are
on.
LCD driver output when LCD segments
corresponding to COM1 and COM3 are
on.
LCD driver output when LCD segments
corresponding to COM2 and COM3 are
on.
LCD driver output when LCD segments
corresponding to COM1, COM2, and
COM3 are on.
LCD driver output when only LCD
segments corresponding to COM4 are
on.
LCD driver output when LCD segments
corresponding to COM2 and COM4 are
on.
LCD driver output when all LCD
segments corresponding to COM1,
COM2,COM3, and COM4 are on.
1/3 Bias, 1/4 Duty Waveforms
No. 5597-13/18
LC75834E, 75834W, 75834JE
The INH pin and Display Control
Since the LSI internal data (the display data and the control data) is undefined when power is first applied, applications
should set the INH pin low at the same time as power is applied to turn off the display (LC75834E, LC75834W: This
sets the S1/P1 to S8/P8, S9 to S34, and COM1 to COM4 to the V level. LC75834JE: This sets the S1/P1 to S8/P8, S10
SS
to S17, S19 to S26, S28 to S33, and COM1 to COM4 to the V level.) and during this period send serial data from the
SS
controller. The controller should then set the INH pin high after the data transfer has completed. This procedure prevents
meaningless displays at power on. (See Figure 3.)
Notes on the Power On/Off Sequences
Applications should observe the following sequence when turning the LC75834E, LC75834W, and LC75834JE power
on and off.
• At power on: Logic block power supply (V ) on → LCD driver block power supply (V
) on
DD
LCD
• At power off: LCD driver block power supply (V
) off → Logic block power supply (V ) off
DD
LCD
However, if the logic and LCD driver block use a shared power supply, then the power supplies can be turned on and off
at the same time.
Note: At the LC75834JE, the display data D33 to D36, D69 to D72, D105 to D108, D133 to D136 must be set to 0.
Figure 3
Notes on Controller Transfer of Display Data
Since the LC75834E, LC75834W, and LC75834JE accept display data divided into four separate transfer operations, we
recommend that applications transfer all of the display data within a period of less than 30 ms to prevent observable
degradation of display quality.
No. 5597-14/18
LC75834E, 75834W, 75834JE
Sample Application Circuit 1
1/2 Bias (for use with normal size panels)
• LC75834E, LC75834W
Note: *2 When a capacitor except the recommended external capacitance (C
= 680 pF) is connected the OSC pin, we recommend that applications
OSC
connect the OSC pin with a capacitor in the range 220 to 2200pF.
• LC75834JE
Note: *2 When a capacitor except the recommended external capacitance (C
= 680 pF) is connected the OSC pin, we recommend that applications
OSC
connect the OSC pin with a capacitor in the range 220 to 2200pF.
No. 5597-15/18
LC75834E, 75834W, 75834JE
Sample Application Circuit 2
1/3 Bias (for use with normal size panels)
• LC75834E, LC75834W
Note: *2 When a capacitor except the recommended external capacitance (C
= 680 pF) is connected the OSC pin, we recommend that applications
OSC
connect the OSC pin with a capacitor in the range 220 to 2200pF.
• LC75834JE
Note: *2 When a capacitor except the recommended external capacitance (C
= 680 pF) is connected the OSC pin, we recommend that applications
OSC
connect the OSC pin with a capacitor in the range 220 to 2200pF.
No. 5597-16/18
LC75834E, 75834W, 75834JE
Sample Application Circuit 3
1/3 Bias (for use with large panels)
• LC75834E, LC75834W
Note: *2 When a capacitor except the recommended external capacitance (C
= 680 pF) is connected the OSC pin, we recommend that applications
OSC
connect the OSC pin with a capacitor in the range 220 to 2200pF.
No. 5597-17/18
LC75834E, 75834W, 75834JE
• LC75834JE
Note: *2 When a capacitor except the recommended external capacitance (C
= 680 pF) is connected the OSC pin, we recommend that applications
OSC
connect the OSC pin with a capacitor in the range 220 to 2200pF.
■ No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace
equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of
which may directly or indirectly cause injury, death or property loss.
■ Anyone purchasing any products described or contained herein for an above-mentioned use shall:
① Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and
distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all
damages, cost and expenses associated with such use:
➁ Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on
SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees
jointly or severally.
■ Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for
volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied
regarding its use or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of June 1997. Specifications and information herein are subject to change
without notice.
No. 5597-18/18
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