ML9058E datasheet(24/76 Pages) LAPIS

Part #	ML9058E

Description	132-Channel LCD Driver

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Manufacturer	LAPIS [LAPIS Semiconductor Co., Ltd.]

Direct Link	http://www.lapis-semi.com/

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24 / 76 page

FEDL9058E-01

LAPIS Semiconductor

ML9058E

24/76

 Line address circuit

The line address circuit is used for specifying the line address corresponding to the common output when

displaying the contents of the display data RAM as is shown in Fig. 4. Normally, the topmost line in the display is

specified using the display start line address set command (COM0 output in the forward display state of the

common output, and COM63 output in the reverse display state). The display area is 64 lines in the direction of

increasing line address from the specified display start line address. When the indicator–dedicated common output

pin (COMS) is selected, data in Line Address 40 H = page 8 and bit 0 is displayed irrespective of the display start

line address. COMS selection is 65th in order.

It is possible to carry out screen scrolling by dynamically changing the line address using the display start line

address set command.



 Display data latch circuit

The display data latch circuit is a latch for temporarily storing the data from the display data RAM before being

output to the LCD drive circuits. Since the commands for selecting forward/reverse display and turning the

display ON/OFF control the data in this latch, the data in the display data RAM will not be changed.

Oscillator Circuit

This is an RC oscillator that generates the display clock. The oscillator circuit is effective only when M/S = “H”

and also CLS = “H”. The oscillations will be stopped when CLS = “L”, and the display clock has to be input to the

CL pin.

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