SANYO LC75838W Datasheet

Ordering number : ENN 6902

53101TN (OT) No. 6902-1/32

Overview

The LC75838E and LC75838W are 1/8 to 1/10 duty general-purpose LCD display drivers used for character and graphics display. These products operate under the control of a microcontroller and can directly drive an LCD with up to 380 segments. They can also control up to 3 general-purpose output ports.

Features

• 1/8duty–1/4bias, 1/9duty–1/4bias, and 1/10duty–1/4bias drive schemes can be controlled from serial data.

1/8duty–1/4bias: up to 320 segments 1/9duty–1/4bias: up to 351 segments 1/10duty–1/4bias: up to 380 segments

• 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.

• Direct display of display data without the use of a decoder provides high generality.

• Built-in display contrast adjustment circuit.

• Up to 3 general-purpose output ports are included.

• Independent LCD driver block power supply V

LCD

• The INH pin is provided. This pin turns off the display and forces the general-purpose output ports to the low level.

• RC oscillator circuit

Package Dimensions

unit: mm

3159-QIP64E

unit: mm

3190-SQFP64

LC75838E, 75838W

SANYO Electric Co.,Ltd. Semiconductor Company

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

1/8 to 1/10 Duty General-Purpose LCD Display Drivers

CMOS IC

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.

• 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.

10.0

12.0

1.25

0.5

1.25

1.25 0.5 1.250.18

12.0

116

10.0

0.5

1.7max

0.5

0.1

0.15

SANYO: SQFP64

[LC75838W]

14.0

17.2

1.0

1.6

0.15

0.35

0.1

15.6

0.8

3.0max

2.7

14.0

17.2

1.0

1.6

0.8

SANYO: QIP64E

[LC75838E]

No. 6902-2/32

LC75838E, 75838W

Pin Assignment

LC75838E LC75838W

P1 P2 P3

VDD

VLCD VLCD0 VLCD1 VLCD2 VLCD3 VLCD4

VSS

OSC

INH

CE CL

S32 S31 S30 S29 S28 S27 S26 S25 S24 S23 S22 S21 S20 S19 S18 S17

48 33

1 16

3249

1764

COM1

COM2

COM3

COM4

COM5

COM6

COM7

COM8

S40/COM9

S39/COM10

S38

S37

S36

S35

S34

S33

S1S2S3S4S5S6S7S8S9

S10

S11

S12

S13

S14

S15

S16

No. 6902-3/32

LC75838E, 75838W

Parameter Symbol Conditions Ratings Unit

Maximum supply voltage

max V

–0.3 to +7.0

LCD

max V

LCD

–0.3 to +12.0

1 CE, CL, DI, INH –0.3 to +7.0

Input voltage V

2 OSC –0.3 to VDD+0.3 V

3 V

LCD

1, V

LCD

2, V

LCD

3, V

LCD

4 –0.3 to V

LCD

+0.3

Output voltage

OUT

1 OSC, P1 to P3 –0.3 to VDD+0.3

OUT

2 V

LCD

0, S1 to S40, COM1 to COM10 –0.3 to V

LCD

+0.3

OUT

1 S1 to S40 300 µA

Output current I

OUT

2 COM1 to COM10 3

OUT

3 P1 to P3 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

Specifications

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

Parameter Symbol Conditions

Ratings

Unit

min typ max

DDVDD

2.7 6.0

LCD

, When the display contrast adjustment 7.0 11.0

Supply voltage

LCD

circuit is used V V

LCD

, When the display contrast adjustment 4.5 11.0

circuit is not used

Output voltage V

LCD

0 V

LCD

4 + 4.5

LCD

1 V

LCD

3/4

LCD

0–V

LCD

2 V

LCD

2/4

LCD

Input voltage

LCD

0–V

LCD

3 V

LCD

1/4

LCD

0–V

LCD

4 V

LCD

4 0 1.5

Input high level voltage V

CE, CL, DI, INH 0.8 V

6.0 V

Input low level voltage V

CE, CL, DI, INH 0 0.2 V

Recommended external resistance R

OSC

OSC 43 kΩ

Recommended external capacitance C

OSC

OSC 680 pF

Guaranteed oscillation range f

OSC

OSC 25 50 100 kHz

Data setup time t

CL, DI :Figure 2 160 ns

Data hold time t

CL, DI :Figure 2 160 ns

CE wait time t

CE, CL :Figure 2 160 ns

CE setup time t

CE, CL :Figure 2 160 ns

CE hold time t

CE, CL :Figure 2 160 ns

High level clock pulse width tø

CL :Figure 2 160 ns

Low level clock pulse width tø

CL :Figure 2 160 ns

INH switching time t

INH, CE :Figures 3, 4, and 5 10 µs

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

No. 6902-4/32

LC75838E, 75838W

Parameter Symbol Conditions

Ratings

Unit

min typ max

Hysteresis V

CE, CL, DI, INH 0.1 V

Input high level current I

CE, CL, DI, INH: VI= 6.0 V 5.0 µA

Input low level current I

CE, CL, DI, INH: VI= 0 V –5.0 µA

1 S1 to S40: IO= –20 µA

LCD

0 – 0.6

Output high level voltage VOH2 COM1 to COM10: IO= –100 µA

LCD

0 – 0.6

3 P1 to P3: IO= –1 mA VDD– 1.0

1 S1 to S40: IO= 20 µA

LCD

4 + 0.6

Output low level voltage VOL2 COM1 to COM10: IO= 100 µA

LCD

4 + 0.6

3 P1 to P3: IO= 1 mA 1.0

2/4 2/4

MID

1 S1 to S40: IO= ±20 µA

LCD

0 – V

LCD

4) (V

LCD

0 – V

LCD

–0.6 +0.6 3/4 3/4

Output middle level voltage *1 V

MID

2 COM1 to COM10: IO= ±100 µA

LCD

0 – V

LCD

4) (V

LCD

0 – V

LCD

–0.6 +0.6 1/4 1/4

MID

3 COM1 to COM10: IO= ±100 µA

LCD

0 – V

LCD

4) (V

LCD

0 – V

LCD

–0.6 +0.6

Oscillator frequency fosc OSC: R

OSC

= 43 kΩ, C

OSC

= 680 pF 40 50 60 kHz

1 VDD: Power saving mode 5

2 VDD: VDD= 6.0 V,

outputs open, fosc = 50 kHz

200 400

LCD

1 V

LCD

: Power saving mode 5

LCD

: V

LCD

= 11.0 V

LCD

Outputs open

500 1000 µA

Current drain

fosc = 50 kHz When the display contrast adjustment circuit is used.

LCD

: V

LCD

= 11.0 V

LCD

Outputs open

250 500

fosc = 50 kHz When the display contrast adjustment circuit is not used.

Electrical Characteristics for the Allowable Operating Ranges

Note: *1 Excluding the bias voltage generation divider resistor built into V

LCD

0, V

LCD

1, V

LCD

2 , V

LCD

3, and V

LCD

4. (See Figure 1.)

No. 6902-5/32

LC75838E, 75838W

Figure 1

• When CL is stopped at the low level

Figure 2

tøH

tds tdh

tøL

tch

tcstcp

VIH

VIL

VIH VIL

VIL

50%

VIH 50%

VIL

VIH

• When CL is stopped at the high level

tøL

tds tdh

tøH

tchtcstcp

VIH

VIL

VIH

50%

VIL

VIH

VIL

VIH 50% VIL

VIL

VIH

To the common and segment drivers

Excluding these resistors

CONTRAST ADJUSTER

No. 6902-6/32

LC75838E, 75838W

Block Diagram

OSC

VLCD

VLCD0 VLCD1 VLCD2

VLCD3 VLCD4

VDD

VSS

COM1

COM8

S40/COM9

S39/COM10

INH

S38

CCB

INTERFACE

SHIFT REGISTER

CONTROL

SEGMENT DRIVER & LATCH

COMMON

DRIVER

GENERAL

PORT

CLOCK

GENERATOR

CONTRAST

ADJUSTER

No. 6902-7/39

LC75838E, 75838W

Pin Pin No. Function Active I/O

Handling

when unused

S1 to S38 1 to 38 Segment driver outputs.

S39/COM10 39 The S39/COM10 and S40/COM9 pins can be used as common —

●● Open

S40/COM9 40 driver outputs under the control data DT1, DT2.

COM1 to COM8

48 to 41 Common driver outputs. — ●● Open

P1 to P3 49 to 51 General-purpose output ports. — ●● Open

OSC 60 — I/O V

CE 62 H I CL 63 I GND

DI 64 — I

INH 61 L I GND

LCD

0 54 — O Open

LCD

1 55 — I Open

LCD

2 56 — I Open

LCD

3 57 — I Open

LCD

4 58 — I GND

52 — — —

LCD

53 — — —

59 Power supply connection. Connect to ground. — — —

Pin Functions

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

Serial data transfer inputs. These pins are connected to the microcontroller. CE :Chip enable CL :Synchronization clock DI :Transfer data

▲

Input that turns the display off and forces the general-purpose output ports low.

• When INH is low (VSS)

• Display off S1 to S38 = “L” (V

LCD

4).

S39/COM10, S40/COM9 = “L” (V

LCD

COM1 to COM8 = “L” (V

LCD

4).

• General-purpose output ports P1 to P3 = low (V

)

• When INH is high (V

)

• Display on

• The states of the general-purpose output ports can be set by the PC1 to PC3 control data.

However, serial data can be transferred when the INH pin is low.

LCD drive 3/4 bias voltage (middle level) supply pin. This pin can be used to supply the 3/4 (V

LCD

0 – V

LCD

4) voltage level externally.

LCD drive 2/4 bias voltage (middle level) supply pin. This pin can be used to supply the 2/4 (V

LCD

0 – V

LCD

4) voltage level externally.

LCD drive 1/4 bias voltage (middle level) supply pin. This pin can be used to supply the 1/4 (V

LCD

0 – V

LCD

4) voltage level externally.

LCD drive 0/4 bias voltage (low level) supply pin. Fine adjustment of the display contrast can be implemented by connecting an external variable resistor to this pin. However, (V

LCD

0 – V

LCD

4) must be greater than or equal to 4.5 V, and V

LCD

4 must be

in the range 0 V to 1.5 V, inclusive.

Logic block power supply connection. Provide a voltage of between 2.7 and 6.0V.

LCD driver block power supply connection. Provide a voltage of between 7.0 and 11.0 V when the display contrast adjustment circuit is used and provide a voltage of between

4.5 and 11.0 V when the circuit is not used.

LCD drive 4/4 bias voltage (high level) supply pin. The level on this pin can be changed by the display contrast adjustment circuit. However, (V

LCD

0 – V

LCD

4) must be greater than or equal to 4.5 V. Also,external power

must not be applied to this pin since the pin circuit includes the display contrast adjustment circuit.

No. 6902-8/32

LC75838E, 75838W

CE CL DI

1 0

0 0 01 D1

D57 D58 D59 D60 D61 D62 D63 D64 D65 D66 D67 D68 D69 D70 D71 D72 D73 D74 D75 D76 D77 D78 D79 D80 0 0 0 0 0 0 0 0

D21 1

B0 B1

CCB

address

8 bits

Display

data

80 bits

Fixed

data

5 bits

3 bits

A1 A3B2 B3 A2

0 0 01

D81

D137 D138 D139 D140 D141 D142 D143 D144 D145 D146 D147 D148 D149 D150 D151 D152 D153 D154 D155 D156 D157 D158 D159 D160

0 0 0 0 0 0 0 1D82

1 1

CCB

address

8 bits

Display

data

80 bits

Fixed

data

5 bits

3 bits

A1 A3B2 B3 A2

0 0 01

D161 D217 D218 D219 D220 D221 D222 D223 D224 D225 D226 D227 D228 D229 D230 D231 D232 D233 D234 D235 D236 D237 D238 D239 D240

0 0 0 0 0 0 1 0

D162

1 1

B1 A0

CCB

address

8 bits

Display

data

80 bits

Fixed

data

5 bits

3 bits

0 0 0 01

D241 D297 D298 D299 D300 D301 D302 D303 D304 D305 D306 D307 D308 D309 D310 D311 D312 D313 D314 D315 D316 D317 D318 D319 D320

0 0 0 0 0 0 1 1

D242

1 1

CCB

address

8 bits

Display

data

80 bits

Fixed

data

5 bits

3 bits

A1 A3B2 B3 A2

B0 B1 A0 A1 A3B2 B3 A2

Serial Data Transfer Format

1. 1/8 duty ① When CL is stopped at the low level

• When the display data is transferred.

• When the control data is transferred.

Note: B0 to B3, A0 to A3

......

CCB address

................................

Direction data

CE CL DI

1 0 0 0 0

PC1 PC2 PC3 CT0 CT1 CT2 CT3 CTC SC BU DT1 DT2

0 1 0 01 1 1

CCB

address

8 bits

Control

data

13 bits

3 bits

B0 B1 A0 A1 A3B2 B3 A2

CE CL DI

1 0 0 0 0

PC1 PC2 PC3 CT0 CT1 CT2 CT3 CTC SC BU DT1 DT2

0 1 0 01 1 1

CCB

address

8 bits

Control

data

13 bits

3 bits

B0 B1 A0 A1 A3B2 B3 A2

No. 6902-9/32

LC75838E, 75838W

② When CL is stopped at the high level

• When the display data is transferred.

Note: B0 to B3, A0 to A3

......

CCB address

................................

Direction data

• CCB address: ....4DH

• D1 to D320: ........ Display data

• PC1 to PC3: ........ General-purpose output port state setting data

• CT0 to CT3, CTC: Display contrast setting data

• SC: ...................... Segment on/off control data

• BU: ...................... Normal mode/power saving mode control data

• DT1, DT2:............ Display technique setting data

CE CL DI

1 0 0 0 01 D1

D57 D58 D59 D60 D61 D62 D63 D64 D65 D66 D67 D68 D69 D70 D71 D72 D73 D74 D75 D76 D77 D78 D79 D80 0 0 0 0 0 0 0 0

D21 1

B0 B1 A0

CCB

address

8 bits

Display

data

80 bits

Fixed

data

5 bits

3 bits

A1 A3B2 B3 A2

1B00 0 0 01

D81

D137 D138 D139 D140 D141 D142 D143 D144 D145 D146 D147 D148 D149 D150 D151 D152 D153 D154 D155 D156 D157 D158 D159 D160

0 0 0 0 0 0 0 1D82

1 1

B1 A0

CCB

address

8 bits

Display

data

80 bits

Fixed

data

5 bits

3 bits

A1 A3B2 B3 A2

1B00 0 0 01

D161 D217 D218 D219 D220 D221 D222 D223 D224 D225 D226 D227 D228 D229 D230 D231 D232 D233 D234 D235 D236 D237 D238 D239 D240

0 0 0 0 0 0 1 0

D162

1 1

B1 A0

CCB

address

8 bits

Display

data

80 bits

Fixed

data

5 bits

3 bits

A1 A3B2 B3 A2

1 0 0 0 01

D241 D297 D298 D299 D300 D301 D302 D303 D304 D305 D306 D307 D308 D309 D310 D311 D312 D313 D314 D315 D316 D317 D318 D319 D320

0 0 0 0 0 0 1 1

D242

1 1

CCB

address

8 bits

Display

data

80 bits

Fixed

data

5 bits

3 bits

B0 B1 A0 A1 A3B2 B3 A2

• When the control data is transferred.

No. 6902-10/32

LC75838E, 75838W

CE CL DI

1 0

0 0 01 D1

D65 D66 D67 D68 D69 D70 D71 D72 D73 D74 D75 D76 D77 D78 D79 D80 D81 D82 D83 D84 D85 D86 D87 D88 D89 D90 0 0 0 0 0 0

D21 1

B0 B1

CCB

address

8 bits

Display

data

90 bits

Fixed

data

3 bits

A1 A3B2 B3 A2

0 0 01

D91

D155 D156 D157 D158 D159 D160 D161 D162 D163 D164 D165 D166 D167 D168 D169 D170 D171 D172 D173 D174 D175 D176 D177 D178 D179 D180

0 0 0 0 0 1D92

1 1

CCB

address

8 bits

Display

data

90 bits

Fixed

data

3 bits

A1 A3B2 B3 A2

0 0 01

D181 D245 D246 D247 D248 D249 D250 D251 D252 D253 D254 D255 D256 D257 D258 D259 D260 D261 D262 D263 D264 D265 D266 D267 D268 D269 D270

0 0 0 0 1 0

D182

1 1

B1 A0

CCB

address

8 bits

Display

data

90 bits

Fixed

data

3 bits

0 0 0 01

D271 D335 D336 D337 D338 D339 D340 D341 D342 D343 D344 D345 D346 D347 D348 D349 D350 D351

0 0 0 0 0 0 0 0 0 0 0 0 0 1 1

D272

1 1

CCB

address

8 bits

Display

data

81 bits

Fixed

data

12 bits

3 bits

A1 A3B2 B3 A2

B0 B1 A0 A1 A3B2 B3 A2

2. 1/9 duty ① When CL is stopped at the low level

• When the display data is transferred.

• When the control data is transferred.

Note: B0 to B3, A0 to A3

......

CCB address

................................

Direction data

CE CL DI

1 0 0 0 0

PC1 PC2 PC3 CT0 CT1 CT2 CT3 CTC SC BU DT1 DT2

0 1 0 01 1 1

CCB

address

8 bits

Control

data

13 bits

3 bits

B0 B1 A0 A1 A3B2 B3 A2

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