RCM2072R Просмотр технического описания (PDF) - ROHM Semiconductor
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RCM2072R Datasheet PDF : 9 Pages
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Liquid crystal displays
RCM2072R
FReset function
When you turn on the power supply, the module automatically returns to its initial (reset) settings. At the initial settings,
the busy flag (BF) becomes “1.” The busy status last 10 ms from when VDD reaches 4.5V. At the initial settings, following
instructions are carried out.
(1) Clear display
(2) Function set
8-bit interface data length
(DL = 1)
Two line display
(N = 1)
SEG signal transfer direction SEG1!SEG50!SEG51!SEG100 (SD1 = 0, SD2 = 0)
COM signal transfer direction COM1!COM16
(CD = 0)
(3) Display on / off control
Display off
(D = 0)
Cursor off
(C = 0)
Blinking off
(B = 0)
(4) Entry mode set
+1 (increment)
(I / D = 1)
No shift
(S = 0)
∗ The internal reset circuit may not operate properly due to conditions with the power supply. If this is the case, use the
appropriate instruction to reset the settings.
FOperation notes
(1) Handling precautions
S Protect the module from strong shocks as they can
cause damage or defective operation.
S The polarizing plate on the surface of the module is
soft and can easily be scratched. Wipe away dirt and
dust using an alcohol-based cleanser.
S If the liquid crystal panel is damaged and liquid crystal
contacts your clothing or body, wash immediately with
soap and water.
S If the module is to be used for long periods subjected
to direct sunlight, employ a filter to block the ultraviolet
rays.
S Do not use the module in areas of high temperature
or high humidity. Do not use the module in locations
exposed to direct sunlight or fluorescent light.
S A protective film (polyethylene) is pasted over ROHM
liquid crystal modules to protect the panel surfaces.
When peeling this film off, be sure to peel as slow as
possible in order to minimize the generation of static
electricity.
(2) Precautions during operation
S Do not connect or disconnect the module while the
power supply is turned on.
S Input the input signal after the module power supply
is turned on. When turning it off, turn off the input sig-
nal first. Otherwise the IC may be damaged by the
latch-up phenomenon.
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