NL6448BC20-18D View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

NL6448BC20-18D

TFT COLOR LCD MODULE

NEC => Renesas Technology 

4.4 POWER SUPPLY VOLTAGE SEQUENCE

4.4.1 LCD panel signal processing board

VCC

Note1

3.0V or 4.75V

0V

ON

Tr < 30ms

Display signals

Function signal

Note2

0V

0ms < t < 35ms

VALID period

NL6448BC20-18D

OFF

ON

Toff > 50ms

0ms < t < 35ms

Note1: In terms of voltage variation (voltage drop) while VCC rising edge is below 3.0V in "VCC =

3.3V" or 4.75V in "VCC = 5.0V", a protection circuit may work, and then this product may

not work.

Note2: Display signals (CLK, Hsync, Vsync, DE, DATA (R0 to R5, G0 to G5, B0 to B5)) and

function signal (DPS) must be Low or High-impedance, exclude the VALID period (See

above sequence diagram), in order to avoid that internal circuits is damaged.

If some of display and function signals of this product are cut while this product is working,

even if the signal input to it once again, it might not work normally. VCC should be cut when

the display and function signals are stopped.

4.4.2 Inverter (Option)

Display signals

Function signals

Note1

Note2

VALID period

VDDB

Note1: These are the display and function signals for LCD panel signal processing board.

Note2: The backlight should be turned on within the valid period of display and function signals, in

order to avoid unstable data display.

DATA SHEET DOD-PP-0251 (6th edition)

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