S6A0031 데이터 시트보기 (PDF) - Samsung

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S6A0031

8 COM / 80 SEG DRIVER & CONTROLLER FOR STN LCD

Samsung 

8 COM / 80 SEG DRIVER & CONTROLLER FOR STN LCD PRELIMINARY SPEC. VER. 0.5

S6A0031

PIN DESCRIPTION

POWER SUPPLY

Name

VDD

VSS

V0

V1

V2

V3

V4

Table 3. Pin Description

I/O

Description

Supply Power supply

Supply Ground

I

Bias voltage Input for LCD driving

LCD driving voltage outputs.

Voltages should have the following relationship;

V0 ≥ V1 ≥ V2 = V3 ≥ V4 ≥ VSS

O

These voltages are generated as following table.

LCD bias

1/4 bias

V1

(3/4) x V0

V2

V3

(2/4) x V0

V4

(1/4) x V0

SYSTEM CONTROL

Name

ECKON

CK

MI

DIRC

DIRS

Table 3. Pin Description (Continued)

I/O

Description

Clock source selection input

I

When ECKON = "High", External clock by CK pin is used as system clock, and internal

oscillator circuit is turned OFF. When ECKON = "Low", internal oscillator is used.

External clock input (when ECKON = "High")

I

It must be fixed "High" or "Low" when the internal oscillation circuit is used (When

ECKON = "Low").

MPU interface selection input

I

MI = "Low", 8080-series MPU

MI = "High", 6800-series MPU

COM direction selection input

When DIRC = "Low"

I

COM1 → COM2 - - - - → COM7 → COM8

When DIRC = "High"

COM8 → COM7 - - - - → COM2 → COM1

SEG direction selection input

When DIRS = "Low"

I

SEG1 → SEG2 - - - - → SEG79 → SEG80

When DIRS = "High"

SEG80 → SEG79 - - - - → SEG2 → SEG1

5

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