DMX 973B LASCAR, DMX 973B Datasheet - Page 2

• Manufacturer Part Number: DMX 973B
• Description: LCD MODULE, 100X32, GRAPHIC
• Manufacturer: LASCAR

Specifications of DMX 973B

• Supply Voltage Range: 4.45V To 5.5V
• Backlighting Colour: Yellow-Green LED Backlight
• Display Size: 51mm X 24mm
• Panel Cutout Height: 40mm
• Panel Cutout Width: 72mm
• Operating Temperature Range: 0°C To +50°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIN FUNCTIONS
1.
2.
3.
4.
5.
6.
7-14.
15.
REFERENCE APPLICATIONS
Interface with 6800 Series
Interface with 8080 Series
Serial Interface
8080-series
6800-series
MPU
MPU
MPU
0V
+5V
RES
A0
R/W
(WR)
E
(RD)
D0-D7
BL-
} Power supply to the dot matrix display.
Reset to initial settings. It is recommended that this pin is driven by the MPU but, for compatibility with
the original DMX 973 interface, this pin can be left disconnected. The module contains an internal RC
reset circuit that will reset on power-up.
Control Data / Display Data flag input. (0=Control Data, 1=Display Data)
Read/Write input in 6800-series mode. (0=Write, 1=Read)
Write enable signal in 8080-series mode.
Enable clock signal in 6800-series mode.
Read enable signal in 8080-series mode.
8-Bit bi-directional microprocessor data bus. (D7= SI, D6=SCL in serial mode)
} Power supply to the LED backlighting, electrically isolated from pins 1 and 2.
D0 to D7
D0 to D7
A0
E
R/W
RES
A0
RD
WR
RES
A0
SI
SCL
RES
A0
E (RD)
R/W (WR)
RES
D0
D7
A0
E (RD)
R/W (WR)
RES
D0
D7
A0
D7 (SI)
D6 (SCL)
RES
R/W (WR)
(SED 1530)
(SED 1530)
DMX 973B
DMX 973B
(SED 1530)
DMX 973B
www.lascarelectronics.com
Ensure solder link
Open and
is Open.
(factory default condition)
Ensure solder link
Open
condition)
80xx is Closed.
Ensure solder link
Closed. S
may be Open or Closed.
Fix R/W (WR) to GND.
(factory default
older link 80xx
solder link 80xx
and
solder link
100 x 32 Pixel Graphic Dot Matrix Display
Ser
Ser
Ser
is
is
is
RECOMMENDED INITIALISATION PROCEDURE
Turn on Power while maintaining RES Low
Set Electronic Volume (contrast) (0x88)
Set Page to write, e.g. Page 0 (0xB0)
Set Power Control
Set 1/5 LCD Bias (0xA3)
Set ADC Normal (0xA0)
Turn Display ON (0xAF)
Cancel Reset, RES High
Set top left Column 16
4 higher bits (0x11)
4 lower bits
Write display data
Voltage follower ON
Regulator ON
Booster ON
(0x00)
(0x2F)
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