HD66760 Datasheet, PDF(10/105 Page) Hitachi Semiconductor – 104 X 80-dot Graphics LCD Controller/Driver for 256 Colors

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HD66760 Datasheet, PDF (10/105 Pages) Hitachi Semiconductor – 104 X 80-dot Graphics LCD Controller/Driver for 256 Colors

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HD66760

Table 1 Pin Functional Description (cont)

Signals

C3+, C3â

Number of

Pins

I/O

C4+, C4â 2

C5+, C5â 2

C6+, C6â 2

RESET* 1

OPOFF 1

VSW1,

VSW2

VREG

VLREF 1

V1REF 1

VCCDUM 2

GNDDUM 4

Dummy 4

TEST

VTEST 1

VL1REF 1

Connected to Functions

Step-up

capacitance

External capacitance should be connected here for

step-up.

Step-up

capacitance

External capacitance should be connected here for

step-up.

Step-up

capacitance

External capacitance should be connected here for

step-up.

Step-up

capacitance

External capacitance should be connected here for

step-up.

MPU or external Reset pin. Initializes the LSI when low. Must be reset

R-C circuit

after power-on.

VCC or GND

Turns the internal operational amplifier off when

OPOFF = VCC, and turns it on when OPOFF = GND.

When internal amplifier is not used, supply V1 to V5

voltage level to the V1OUT to V5OUT pins.

GND

Test pins. Must be VSW1, VSW2 = GND.

Input pin

Output pin

Input pins

GND

This pin is used when the reference voltage of the

internal power-supply regulator is externally supplied.

When the internal reference voltage (1/2 Vci) is used,

VREG must be opened since the 1/2-Vci level is

output.

Use this pin when the LCD drive voltage is externally

supplied. When the internal power-supply regulator

is used, short VLREF with the V1REF pin.

Outputs the LCD drive voltage generated in the

internal power-supply regulator. Insert this pin when

the external temperature-compensation circuit is

used between V1REF and VLREF. If the circuit is

not used, short V1REF and VLREF.

Outputs the internal VCC level; shorting this pin sets

the adjacent input pin to the VCC level.

Outputs the internal GND level; shorting this pin sets

the adjacent input pin to the GND level.

Dummy pad. Must be left disconnected.

Test pin. Must be fixed at GND level.

Test pin. Must be left disconnected.

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