UPD160040A View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD160040A

384-OUTPUT TFT-LCD SOURCE DRIVER (COMPATIBLE WITH 256-GRAY SCALES)

NEC => Renesas Technology 

µPD160040A

7. RELATIONSHIP BETWEEN MODE, STB, SRC, ORC, POL AND OUTPUT WAVEFORM

When MODE = H or open and STB is high level, all outputs are reset (shorted) and the gray-scale voltage is output

to LCD in synchronization with the falling edge of STB.

When MODE = L and STB is high level, all outputs became Hi-Z and the gray-scale voltage is output to the LCD in

synchronization with the falling edge of STB.

Also, setting the SRC pin to high level allows the bias current value of the output amplifier to rise temporarily, and

setting the ORC pin to high level allows the output resistance value of the amplifier to lower temporarily.

For the timing and the processing of STB, SRC, or ORC during a high-level period, We recommend a thorough

evaluation of the LCD panel specifications in advance.

(1) MODE = H or open

STB

SRC

High-slew-rate period

ORC

POL

Low-slew-rate period

High output resistance period

Low output resistance period

S2n–1

S2n

Voltage selected form V0 to V7

Voltage selected form V8 to V15

Voltage selected form V0 to V7

Voltage selected form V8 to V15 Voltage selected form V0 to V7

Voltage selected form V8 to V15

Reset

Reset

Reset

Data Sheet S15918EJ1V0DS

11

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