68HC05CL48 datasheet(100/145 Pages) MOTOROLA

tên linh kiện	68HC05CL48

Giải thích chi tiết về linh kiện	SPECIFICATION (General Release)

PDF	145 Pages

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nhà sản xuất	MOTOROLA [Motorola, Inc]

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GENERAL RELEASE SPECIFICATION

June 11, 1997

MOTOROLA

LCD DRIVER

MC68HC05CL48

12-4

REV 2.0

12.2

LCD OPERATION

Figure 12-2 shows the backplane waveforms and some examples of frontplane

waveforms which are dependent on the LCD segments to be driven as deﬁned in

the LCD RAM. Each “on” segment must have a differential driving voltage (BP-FP)

applied to it once in each frame; the LCD driver module hardware uses the data in

the LCD RAM to construct the frontplane waveform to meet this criterion. The

backplane waveforms are continuous and repetitive (every 2 frames); they are

ﬁxed and not affected by the data in the LCD RAM. During WAIT mode the LCD

drivers function as normal and will keep the display active if the DISON bit (bit0 of

$07) is set.

The LCD drivers can be conﬁgured to operate with either 16 backplanes or 8

backplanes under software control.

The bias ratio can be set 1:4 or 1/5 under software control for both a 8 and 16

backplane LCD. The voltage levels required are generated internally by a resistive

divider between VLCD and VSS.

68HC05CL48 bảng dữ liệu(PDF) 100 Page - Motorola, Inc