Reduction of the number of parts and small package reduce the burden of designer and provide space-saving design

July 2, 2009

New Japan Radio releases the NJU6434, 4COM×50SEG (200Segment max.) LCD controller driver

July 2, 2009 - New Japan Radio Co., Ltd. has introduced to the market, the NJU6434, a LCD Controller Driver that reduces the number of parts on the LCD display controller board of single lens reflex DSC and Home-Audio Equipment.

[Background of development]

NJU6434 present circuitry

Recently, in single lens reflex DSC and home-audio equipment market,low voltage operating(5V down to 3V) is increasing.So,the conventionally LCD drivers sometimes need an additional parts such as level-shifter, to drive LCD display, as shown in the drawing below.

In single lens reflex DSC market, the problem of larger boards and higher cost is increasing, so the demand for space saving and low cost design is greatly required. To meet these needs, New Japan Radio Co., Ltd. has developed the NJU6434.

[Features]

The NJU6434 is comprised of common and segment drivers, latch-circuit, shift-register, power-on-reset circuit, oscillator and/or other circuit. It can make a small sized board and lower-cost possible, due to reducing the additional parts such as level-shifter, and mounted on small package. The NJU6434 is suitable for single lens reflex DSC and Home-Audio Equipment.

1.Reducing the burden of LCD driving circuit design
Lower operating voltage trend in the market makes some conventional LCD drivers required an additional parts such as level-shifter for keeping specific voltage of LCD driving. The NJU6434 can reduce the additional parts by review of wafer process. So it can reduce the burden of LCD driving circuit design and provide space saving, cost saving.
2.Providing space saving with mounting in small package: QFN64-S4(body size 8.2×8.2 mm)
The convention type LCD driver (NJU6433B) is mounted in package QFP64-H2(10.0×10.0×1.4 mm) and the NJU6434 is mounted in small package (QFN64-S4: 8.2×8.2×0.95mm).The NJU6434 makes 32% reduction in area ratio possible.

[Others]

Product Name NJU6434
Function 4COM × 50SEG (200Segment max.) LCD Controller Driver
Applications Single Lens Reflex DSC(Digital still camera) / Home-Audio Equipment
Packaging LQFP64-H2QFN64-S4,CHIP
NJU6434FH2,NJU6434KS4

[Features & Characteristics]

[Schedule]

A detailed spec is here
NJU6434

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