LK404-25 Matrix Orbital, LK404-25 Datasheet - Page 11

• Manufacturer Part Number: LK404-25
• Description: LCD Character Display Modules Yel/Grn Background Black Text
• Manufacturer: Matrix Orbital

Specifications of LK404-25

• Character Count X Line: 40 x 4
• Module Size (w X H X T): 98 mm x 60 mm x 27.5 mm
• Fluid Type: STN
• Background Color: Yellow / Green
• Backlight Type: LED Yellow
• Display Mode: Transflective

power through DB-9 option, see table 1 on the following page for display module voltage requirements.
2.2 Power/Data Connector
25 requires five volts for the standard display module, between nine to fifteen for the wide voltage (V)
and between nine to thirty-five volts for the wide voltage with efficient power supply module (VPT). The
voltage is applied through pins one and four of the four pin Power/Data connector. Pins two and three are
reserved for serial transmission, using either the RS-232/TTL or the I
been selected by the Protocol Select Jumpers. Pins two and three may be reversed by changing the Legacy
Connector Jumpers in order to be compatible with previous PCB revisions.
Matrix Orbital
The Power/Data Connector provides a standard connector for powering the display module. The LK404-
WARNING Do not apply voltage through pin 9 of the DB-9 connector
AND through the Power/Data Connector at the same time.
Figure 12: Power Through DB-9 Jumper
Figure 13: Power Connector and Pin out
LK404-25
Pin
Pin
Pin
Pin
1
2
3
4
PWR
page)
Rx \ SCL (I
Tx \ SDA (I
GND
(See table 1 on the next
2
C protocol, depending on what has
2
2
C clock)
C data)
7