Technical Note

7/14

BU95303

www.rohm.com

2010.10 - Rev.A

© 2010 ROHM Co., Ltd. All rights reserved.

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Pin Descriptions

Pin Name

In/Out

Active

Descriptions

In

Differential

RSDS

The 3-bit differential input pairs generate the internal 6-bit data through the

In

Differential The RSDS

Y1 ~ Y432

Out

-

Driver outputs for D/A converted 64 gray scale analog voltage.

R/L

In

-

The shift direction of internal shift register is controlled by this pin as shown below.

R/L=H : Right shift SFTR→Y1→Y432→SFTL

R/L=L : Left shift SFTL→Y432→Y1→SFTR

SEL0

SEL1

In

-

The output channel number is controlled by this pin as shown below.

SEL1

SEL0

Number of effective

output terminal

Invalid output terminal

H

H

384

Y193 ~ Y240 become Hi-Z

H

L

414

Y208 ~ Y225 become Hi-Z

L

H

420

Y211 ~ Y222 become Hi-Z

L

L

432(default)

-

LPC0

LPC1

In

H

Low power control pin

LPC1

LPC0

power condition

H

H

Strong power

H

L

Normal power

L

H

Ultra-low power

L

L

Low power(default).

SFTR

In/Out

H

SFTR=H: Right shift start pulse input terminal in cascade connection.

SFTR=L: Carry output terminal in cascade connection.

SFTL

In/Out

H

SFTL=H: Carry output terminal in cascade connection.

SFTL=L: Left shift start pulse input terminal in cascade connection.

STB

In

The data in the data register are transferred to the data latch at the rising edge of STB,

then the gray scale voltages are output from the buffer at the falling edge of STB.

INV

In

H

Terminal to specify inverting or non-inverting of display data

INV:H : Input data are inverted in the IC.

INV:L : Input data are not inverted.

V0 ~ V13

In

-

Input for the γ-correction reference voltage

The following external reference voltages are input.

POL

In

-

At the rising edge of STB, the state of POL are transferred to the driver.

POL=H : The reference voltage for odd number outputs are V0 to V6 and those

for even number outputs are V7 to V13.

POL=L : The reference voltage for odd number outputs are V7 to V13 and those

for even number outputs are V0 to V6

IREP1,2

In

-

Repair amplifier input

OREP1,2

Out

-

Repair amplifier output

In

-

Power supply for driver block

In

-

In

-

Power supply for digital block

In

-