Pin Functions

No. 5194-5/9

LC4104C

Symbol

I/O

Function

O1 to O160

V0

V2

V3

V5

DISP

M

EIO1

EIO2

CP

LOAD

TEST

R/L

D0 to D7

BS

O

I

I

I

I

—

—

—

I

I

I/O

I/O

I

I

I

I

I

I

LCD drive outputs

V0 level drive voltage supply (selected level)

V2 level drive voltage supply (unselected level)

V3 level drive voltage supply (unselected level)

V5 level drive voltage supply (selected level)

High-voltage system power supply. Pins with the same name must be set to the same potential.

Logic system power supply.

GND

LCD off function. All outputs go to the V5 level when this pin is low.

Alternation signal input

Enable I/O

Enable input:

enable output from the preceding stage.

Enable output: Connected to the enable input of the next stage when cascode connection is used.

Data acquisition clock (falling edge)

Data load clock (falling edge)

Test input. Must be tied high in normal use.*

Data shift direction setting

Parallel data inputs

Input bus setting. Set high for 8-bit input, low for 4-bit input. For 4-bit input, D0 to D3 are used for data input and D4 to D7 must

be tied to ground.

*: Don’t care. (Must be held either high or low.)

M

Data

DISP

On

H

H

H

V0

H

L

H

V2

L

L

H

V3

L

H

H

V5

*

*

L

V5

R/L

EIO1

EIO2

L

In

Out

H

Out

In

R/L

BS

O1 to O160 outputs

O1

O2

O3

O4

→ . . .

O157

O158

O159

O160

L

↑

↑

↑

↑

↑

↑

↑

↑

H

D7

D6

D5

D4

D3

D2

D1

D0

O1

O2

O3

O4

. . .

←

O157

O158

O159

O160

H

↑

↑

↑

↑

↑

↑

↑

↑

D0

D1

D2

D3

D4

D5

D6

D7

O1

O2

O3

O4

→ . . .

O157

O158

O159

O160

L

↑

↑

↑

↑

↑

↑

↑

↑

L

D3

D2

D1

D0

D3

D2

D1

D0

O1

O2

O3

O4

. . .

←

O157

O158

O159

O160

H

↑

↑

↑

↑

↑

↑

↑

↑

D0

D1

D2

D3

D0

D1

D2

D3

Pins with the same name must be set to the same potential.

Note: * This IC is sensitive to ESD care must be used when handling this device.