Sanyo LC75824W Specifications

93098HA (OT)/N3095HA (OT) No.5252-1/17

Overview

The LC75824E and LC75824W are 1/4 duty general­purpose LCD display drivers that can be used for
frequency display in electronic tuners under the control of
a microcontroller. In addition to being able to directly
drive up to 204 LCD segments, the LC75824E and
LC75824W can also control up to 12 general-purpose
output ports.

Features

• Support for 1/4 duty 1/2 bias or 1/4 duty 1/3 bias drive
of up to 204 segments under serial data control

• 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 general-purpose output port functions

• Serial data control of the normal mode current drain

• High generality since display data is displayed directly
without decoder intervention.

• The INH pin can force the display to the off state.

• RC oscillator circuit

Package Dimensions

unit: mm

3159-QFP64E

SANYO: QFP64E

[LC75824E]

unit: mm

3190-SQFP64

SANYO: SQFP64

[LC75824W]

• CCB is a trademark of SANYO ELECTRIC CO., LTD.

• CCB is SANYO’s original bus format and all the bus
addresses are controlled by SANYO.

CMOS LSI

Ordering number : EN5252A

1/4 Duty General-Purpose LCD Display Driver

LC75824E, 75824W

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.

Pin Assignment

Specifications

Absolute Maximum Ratings at Ta = 25°C, VSS= 0 V

No.5252-2/17

LC75824E, 75824W

Parameter Symbol Conditions Ratings Unit

Maximum supply voltage V

DD

max V

DD

–0.3 to +7.0 V

Input voltage

V

IN

1 CE, CL, DI, INH –0.3 to +7.0

V

V

IN

2 OSC, VDD1, VDD2 –0.3 to VDD+ 0.3

Output voltage V

OUT

OSC, S1 to S51, COM1 to COM4, P1 to P12 –0.3 to VDD+ 0.3 V

I

OUT

1 S1 to S51 300 µA

Output current I

OUT

2 COM1 to COM4 3

mA

I

OUT

3 P1 to P12 5
Allowable power dissipation Pd max Ta = 85°C 200 mW
Operating temperature Topr –40 to +85 °C
Storage temperature Tstg –55 to +125 °C

Top view

Allowable Operating Ranges at Ta = –40 to 85°C, VSS= 0 V

Electrical Characteristics for the Allowable Operating Ranges

Note: * Excluding the bias voltage generation divider resistors built into the VDD1 and VDD2. (See Figure 1)

No.5252-3/17

LC75824E, 75824W

Parameter Symbol Conditions min typ max Unit

Supply voltage V

DD

V

DD

3.0 6.0 V

Input voltage

V

DD

1 VDD1 2/3 V

DD

V

DD

V

V

DD

2 VDD2 1/3 V

DD

V

DD

Input high-level voltage V

IH

CE, CL, DI, INH 0.8 V

DD

6.0 V

Input low-level voltage V

IL

CE, CL, DI, INH 0 0.2 V

DD

V

Recommended external

R

OSC

OSC 270 kΩ

resistance
Recommended external

C

OSC

OSC 100 pF

capacitance
Guaranteed oscillation range f

OSC

OSC 25 50 100 kHz

Data setup time t

ds

CL, DI: Figure 2 160 ns

Data hold time t

dh

CL, DI: Figure 2 160 ns

CE wait time t

cp

CE, CL: Figure 2 160 ns

CE setup time t

cs

CE, CL: Figure 2 160 ns

CE hold time t

ch

CE, CL: Figure 2 160 ns

High-level clock pulse width t

øH

CL: Figure 2 160 ns

Low-level clock pulse width t

øL

CL: Figure 2 160 ns

Rise time t

r

CE, CL, DI: Figure 2 160 ns

Fall time t

f

CE, CL, DI: Figure 2 160 ns

INH switching time t

c

INH, CE: Figure 3 10 µs

Parameter Symbol Conditions min typ max Unit

Hysteresis V

H

CE, CL, DI, INH 0.1 V

DD

V

Input high-level current I

IH

CE, CL, DI, INH: VI= 6.0 V 5.0 µA

Input low-level current I

IL

CE, CL, DI, INH: VI= 0 V –5.0 µA

V

OH

1 S1 to S51: IO= –20 µA VDD– 1.0

Output high-level voltage V

OH

2 COM1 to COM4: IO= –100 µA VDD– 1.0 V

V

OH

3 P1 to P12: IO= –1 mA VDD– 1.0

V

OL

1 S1 to S51: IO= 20 µA 1.0

Output low-level voltage V

OL

2 COM1 to COM4: IO= 100 µA 1.0 V

V

OL

3 P1 to P12: IO= 1 mA 1.0

V

MID

1 COM1 to COM4: 1/2 bias, IO= ±100 µA

1/2 VDD– 1.0 1/2 VDD+ 1.0

V

MID

2 S1 to S51: 1/3 bias, IO= ±20 µA

2/3 VDD– 1.0 2/3 VDD+ 1.0

Output middle-level voltage* V

MID

3 S1 to S51: 1/3 bias, IO= ±20 µA

1/3 VDD– 1.0 1/3 VDD+ 1.0

V

V

MID

4 COM1 to COM4: 1/3 bias, IO= ±100 µA

2/3 VDD– 1.0 2/3 VDD+ 1.0

V

MID

5 COM1 to COM4: 1/3 bias, IO= ±100 µA

1/3 VDD– 1.0 1/3 VDD+ 1.0

Oscillator frequency f

OSC

OSC: R

OSC

= 270 kΩ, C

OSC

= 100 pF 40 50 60 kHz

I

DD

1 Power-saving mode 5

I

DD

2

V

DD

= 3.0 V, outputs open, 1/2 bias, f

OSC

= 50 kHz,

70 140

control data CU = 0

I

DD

3

V

DD

= 6.0 V, outputs open, 1/2 bias, f

OSC

= 50 kHz,

200 400

control data CU = 0

I

DD

4

V

DD

= 3.0 V, outputs open, 1/3 bias, f

OSC

= 50 kHz,

80 160

control data CU = 0

I

DD

5

V

DD

= 6.0 V, outputs open, 1/3 bias, f

OSC

= 50 kHz,

250 500

Current drain

control data CU = 0

µA

I

DD

6

V

DD

= 3.0 V, outputs open, 1/2 bias, f

OSC

= 50 kHz,

30 60

control data CU = 1

I

DD

7

V

DD

= 6.0 V, outputs open, 1/2 bias, f

OSC

= 50 kHz,

130 260

control data CU = 1

I

DD

8

V

DD

= 3.0 V, outputs open, 1/3 bias, f

OSC

= 50 kHz,

40 80

control data CU = 1

I

DD

9

V

DD

= 6.0 V, outputs open, 1/3 bias, f

OSC

= 50 kHz,

150 300

control data CU = 1

Figure 1

1. When CL is stopped at the low level

2. When CL is stopped at the high level

Figure 2

No.5252-4/17

LC75824E, 75824W

Block Diagram

Pin Functions

No.5252-5/17

LC75824E, 75824W

Pin Pin No. Function Active I/O

Handling when
unused

S1/P1 to S12/P12,
S13 to S51

COM1 to COM4

OSC

CE

CL

DI

INH

V

DD

1

V

DD

2

V

DD

V

SS

1 to 12,

13 to 51

52 to 55

60

62

63

64

61

57

58

56

59

Segment outputs for displaying the display data transferred by serial data
input. Pins S1/P1 to S12/P12 can be used as general-purpose output ports
when so specified by the control data.

Common driver outputs.
The frame frequency f

O

is given by: fO = (f

OSC

/512) Hz.

Oscillator connection. An oscillator circuit is formed by connecting an external
resistor and capacitor to this pin.

CE: Chip enable
CL: Synchronization clock
DI: Transfer data

Serial data transfer inputs.
These pins are connected to the
microcontroller.

Display off control input

• INH = low (V

SS

) .......Display forced off

Pins S1/P1 to S12/P12 = low (These pins are forced to

the segment output port

function and held low.)
S13 to S51 = low
COM1 to COM4 = low

• INH = high (V

DD

)......Display on

Note that serial data transfers can be performed when the display is forced off.

Used to apply the LCD drive 2/3 bias voltage. Short this pin to V

DD

2 if a

1/2-bias drive scheme is used.

Used to apply the LCD drive 1/3 bias voltage. Short this pin to V

DD

1 if a

1/2-bias drive scheme is used.

Power supply. Provide a voltage of between 3.0 and 6.0 V.

Ground. Connect this pin to the system ground.

—

—

—

H

—

L

—

—

—

—

O

O

I/O

I

I

I

I

I

I

—

—

Open

Open

GND

GND

GND

Open

Open

—

—

Serial Data Input

1. When CL is stopped at the low level

Note: DD is the direction data.

No.5252-6/17

LC75824E, 75824W

CCB address

8 bits

Display data

52 bits

Control data

10 bits

DD

CCB address

8 bits

Display data

52 bits

Fixed data

10 bits

DD

CCB address

8 bits

Display data

52 bits

Fixed data

10 bits

DD

CCB address

8 bits

Display data

48 bits

Fixed data

14 bits

DD

2. When CL is stopped at the high level

Note: DD is the direction data.

• CCB address...............41H

• D1 to D204.................Display data

• CU..............................Normal mode current drain control data

• 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.5252-7/17

LC75824E, 75824W

CCB address

8 bits

Display data

52 bits

Control data

10 bits

DD

CCB address

8 bits

Display data

52 bits

Fixed data

10 bits

DD

CCB address

8 bits

Display data

52 bits

Fixed data

10 bits

DD

CCB address

8 bits

Display data

48 bits

Fixed data

14 bits

DD

Serial Data Transfer Examples

1. When 157 or more segments are used
All 256 bits of the serial data must be sent.

2. When fewer than 157 segments are used
Either 64 bits, 128 bits, or 192 bits of serial data must be sent, depending on the number of segments actually used.
However, the serial data shown in the figure below (the display data D1 to D52 and the control data) must always be
sent.

No.5252-8/17

LC75824E, 75824W

Control Data Functions

1. CU: Normal mode current drain control data
This control data bit controls the current drain in normal mode.

However, note that the common and segment output waveforms are easily caused distortion when the low current
drain mode is selected by setting CU to 1, because in this mode the capacity to supply current to the LCD panel from
the common and segment pins is mode less than that in the normal current drain mode (CU = 0).

2. P0 to P3: Segment output port/general-purpose output port switching control data
These control data bits switch the segment output port/general-purpose output port functions of the S1/P1 to S12/P12
output pins.

Note: Sn (n = 1 to 12): Segment output port function

Pn (n = 1 to 12): General-purpose output port function

When the general-purpose output port function is selected the output pins and the display data have the
correspondence listed in the tables below.

For example, when the general-purpose output port function is selected for the S4/P4 output pin, that output pin will
output a high level when display data D13 is 1, and will output a low level when D13 is 0.

No.5252-9/17

LC75824E, 75824W

CU Current drain mode in normal mode

0 Normal current drain mode (I

DD

2, IDD3, IDD4, and IDD5)

1 Low current drain mode (I

DD

6, IDD7, IDD8, and IDD9)

Output pin Corresponding display data

S1/P1 D1
S2/P2 D5
S3/P3 D9
S4/P4 D13
S5/P5 D17
S6/P6 D21

Output pin Corresponding display data

S7/P7 D25
S8/P8 D29

S9/P9 D33
S10/P10 D37
S11/P11 D41
S12/P12 D45

Control data Output pin states

P0 P1 P2 P3 S1/P1 S2/P2 S3/P3 S4/P4 S5/P5 S6/P6 S7/P7 S8/P8 S9/P9 S10/P10 S11/P11 S12/P12

0 0 0 0 S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12
0 0 0 1 P1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12
0 0 1 0 P1 P2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12
0 0 1 1 P1 P2 P3 S4 S5 S6 S7 S8 S9 S10 S11 S12
0 1 0 0 P1 P2 P3 P4 S5 S6 S7 S8 S9 S10 S11 S12
0 1 0 1 P1 P2 P3 P4 P5 S6 S7 S8 S9 S10 S11 S12

0 1 1 0 P1 P2 P3 P4 P5 P6 S7 S8 S9 S10 S11 S12
0 1 1 1 P1 P2 P3 P4 P5 P6 P7 S8 S9 S10 S11 S12
1 0 0 0 P1 P2 P3 P4 P5 P6 P7 P8 S9 S10 S11 S12
1 0 0 1 P1 P2 P3 P4 P5 P6 P7 P8 P9 S10 S11 S12
1 0 1 0 P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 S11 S12
1 0 1 1 P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 S12
1 1 0 0 P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12

3. 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.

4. SC: Segments on/off control data
This control data bit controls the on/off state of the segments.

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.

5. BU: Normal mode/power-saving mode control data
This control data bit selects either normal mode or power-saving mode.

No.5252-10/17

LC75824E, 75824W

DR Drive type

0 1/3 bias drive
1 1/2 bias drive

SC Display state

0 On
1 Off

BU Mode

0 Normal mode
1

Power-saving mode. In this mode the OSC pin oscillator is stopped and the common and segment pins output low levels. However,
the S1/P1 to S12/P12 output pins can still be used as general-purpose output ports under the control of the control data bits P0 to P3.

Display Data to Output Pin Correspondence

Note: These tables assume that the segment output port function is selected for the S1/P1 to S12/P12 output pins.

The table presents the states of the S21 output pin as an example.

No.5252-11/17

LC75824E, 75824W

Output pin COM1 COM2 COM3 COM4

S1/P1 D1 D2 D3 D4
S2/P2 D5 D6 D7 D8
S3/P3 D9 D10 D11 D12
S4/P4 D13 D14 D15 D16
S5/P5 D17 D18 D19 D20
S6/P6 D21 D22 D23 D24
S7/P7 D25 D26 D27 D28
S8/P8 D29 D30 D31 D32

S9/P9 D33 D34 D35 D36
S10/P10 D37 D38 D39 D40
S11/P11 D41 D42 D43 D44
S12/P12 D45 D46 D47 D48

S13 D49 D50 D51 D52
S14 D53 D54 D55 D56
S15 D57 D58 D59 D60
S16 D61 D62 D63 D64
S17 D65 D66 D67 D68
S18 D69 D70 D71 D72
S19 D73 D74 D75 D76
S20 D77 D78 D79 D80
S21 D81 D82 D83 D84
S22 D85 D86 D87 D88
S23 D89 D90 D91 D92
S24 D93 D94 D95 D96
S25 D97 D98 D99 D100

Output pin COM1 COM2 COM3 COM4

S26 D101 D102 D103 D104
S27 D105 D106 D107 D108
S28 D109 D110 D111 D112
S29 D113 D114 D115 D116
S30 D117 D118 D119 D120
S31 D121 D122 D123 D124
S32 D125 D126 D127 D128
S33 D129 D130 D131 D132
S34 D133 D134 D135 D136
S35 D137 D138 D139 D140
S36 D141 D142 D143 D144
S37 D145 D146 D147 D148
S38 D149 D150 D151 D152
S39 D153 D154 D155 D156
S40 D157 D158 D159 D160
S41 D161 D162 D163 D164
S42 D165 D166 D167 D168
S43 D169 D170 D171 D172
S44 D173 D174 D175 D176
S45 D177 D178 D179 D180
S46 D181 D182 D183 D184
S47 D185 D186 D187 D188
S48 D189 D190 D191 D192
S49 D193 D194 D195 D196
S50 D197 D198 D199 D200
S51 D201 D202 D203 D204

Display data

Output pin (S21) state

D81 D82 D83 D84

0 0 0 0 The LCD segments corresponding to COM1 to COM4 are off.
0 0 0 1 The LCD segment corresponding to COM4 is on (lit).
0 0 1 0 The LCD segment corresponding to COM3 is on.
0 0 1 1 The LCD segments corresponding to COM3 and COM4 are on.
0 1 0 0 The LCD segment corresponding to COM2 is on.
0 1 0 1 The LCD segments corresponding to COM2 and COM4 are on.
0 1 1 0 The LCD segments corresponding to COM2 and COM3 are on.
0 1 1 1 The LCD segments corresponding to COM2, COM3, and COM4 are on.
1 0 0 0 The LCD segment corresponding to COM1 is on.
1 0 0 1 The LCD segments corresponding to COM1 and COM4 are on.
1 0 1 0 The LCD segments corresponding to COM1 and COM3 are on.
1 0 1 1 The LCD segments corresponding to COM1, COM3, and COM4 are on.
1 1 0 0 The LCD segments corresponding to COM1 and COM2 are on.
1 1 0 1 The LCD segments corresponding to COM1, COM2, and COM4 are on.
1 1 1 0 The LCD segments corresponding to COM1, COM2, and COM3 are on.
1 1 1 1 The LCD segments corresponding to COM1 to COM4 are on.

1/4 Duty, 1/2 Bias Drive Scheme

1/4 Duty, 1/2 Bias Waveforms

No.5252-12/17

LC75824E, 75824W

LCD driver output for all LCD segments
corresponding to COM1 to COM4 off.

LCD driver output for only the LCD segment
corresponding to COM1 on (lit).

LCD driver output for only the LCD segment
corresponding to COM2 on.

LCD driver output for the LCD segment
corresponding to COM1 and COM2 on.

LCD driver output for only the LCD segment
corresponding to COM3 on.

LCD driver output for the LCD segment
corresponding to COM1 and COM3 on.

LCD driver output for the LCD segment
corresponding to COM2 and COM3 on.

LCD driver output for the LCD segment
corresponding to COM1, COM2, and COM3 on.

LCD driver output for only the LCD segment
corresponding to COM4 on.

LCD driver output for the LCD segment
corresponding to COM2 and COM4 on.

LCD driver output for all LCD segments
corresponding to COM1 to COM4 on.

COM1

COM2

COM3

COM4

1/4 Duty, 1/3 Bias Drive Scheme

1/4 Duty, 1/3 Bias Waveforms

No.5252-13/17

LC75824E, 75824W

LCD driver output for all LCD segments
corresponding to COM1 to COM4 off.

LCD driver output for only the LCD segment
corresponding to COM1 on (lit).

LCD driver output for only the LCD segment
corresponding to COM2 on.

LCD driver output for the LCD segment
corresponding to COM1 and COM2 on.

LCD driver output for only the LCD segment
corresponding to COM3 on.

LCD driver output for the LCD segment
corresponding to COM1 and COM3 on.

LCD driver output for the LCD segment
corresponding to COM2 and COM3 on.

LCD driver output for the LCD segment
corresponding to COM1, COM2, and COM3 on.

LCD driver output for only the LCD segment
corresponding to COM4 on.

LCD driver output for the LCD segment
corresponding to COM2 and COM4 on.

LCD driver output for all LCD segments
corresponding to COM1 to COM4 on.

COM1

COM2

COM3

COM4

Display Control and the INH Pin

Since the LSI internal data (the display data D1 to D204 and the control data) is undefined when power is first applied,
applications should prevent meaningless displays with the following procedure. First, set the INH pin low at the same
time as power is applied to turn off the display. This will set the S1/P1 to S12/P12, S13 to S51, and COM1 to COM4
pins low. While the INH pin is held low, the microcontroller should send the serial data. Finally, the application can set
the INH pin to high. (See Figure 3.)

Figure 3

Notes on Microcontroller Transfer of Display Data

Since the LC75824E and LC75824W accept the display data divided into four separate transfer operations, we
recommend that applications make a point of completing all four data transfers within a period of no more than 30 ms to
guarantee the quality of the displayed image.

No.5252-14/17

LC75824E, 75824W

Internal data

Display and control data transfer

Undefined

Defined

t1...Determined by value of C and R.
tc...10 µs minimum

Sample Application Circuit 1

1/2 bias (normal panels)

Sample Application Circuit 2

1/2 bias (large panels)

No.5252-15/17

LC75824E, 75824W

From the
microcontroller

General-purpose
output ports

LCD panel (up to 204 segments)

Used for example,
for backlight control.

From the
microcontroller

General-purpose
output ports

LCD panel (up to 204 segments)

Used for example,
for backlight control.

C ≥ 0.047 µF

10 kΩ ≥ R ≥ 1 kΩ.
C ≥ 0.047 µF

Sample Application Circuit 3

1/3 bias (normal panels)

Sample Application Circuit 4

1/3 bias (large panels)

No.5252-16/17

LC75824E, 75824W

From the
microcontroller

General-purpose
output ports

LCD panel (up to 204 segments)

Used for example,
for backlight control.

From the
microcontroller

General-purpose
output ports

LCD panel (up to 204 segments)

Used for example,
for backlight control.

10 kΩ ≥ R ≥ 1 kΩ.
C ≥ 0.047 µF

C ≥ 0.047 µF

PS No.5252-17/17

LC75824E, 75824W

This catalog provides information as of September, 1998. Specifications and information herein are
subject to change without notice.

Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer’s
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer’s products or equipment.

SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or that could cause damage to other property. When designing equipment, adopt safety measures so
that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.

In the event that any and all SANYO products described or contained herein fall under strategic
products (including services) controlled under the Foreign Exchange and Foreign Trade Control Law of
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or otherwise, without the prior written permission of SANYO Electric Co., Ltd.

Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the “Delivery Specification”
for the SANYO product that you intend to use.

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.