HDLX-1414 AVAGO [AVAGO TECHNOLOGIES LIMITED], HDLX-1414 Datasheet - Page 8

• Manufacturer Part Number: HDLX-1414
• Description: Four Character Smart Alphanumeric Displays
• Manufacturer: AVAGO [AVAGO TECHNOLOGIES LIMITED]

8
Figure 2. Display internal block diagram.
WR
applied to the inputs until V
has been turned on, and high
transient input voltages should
be eliminated.
Soldering Instructions
The HDLX-1414 is compatible
with hand- and wave-solder
processes. The use of a no-clean
flux is recommended.
The polycarbonate lens on these
displays is incompatible with
some fluxes and cleaning
solutions. It is not recommended
A
D
0
0
– A
– D
1
6
2
7
WRITE
ADDRESS
DATA IN
WRITE
CHARACTER RAM
(4 x 7)
DD
OSC
DATA
OUT
for use with heated Terpene, or
solutions of propylene glycol
monomethyl ether and
monoethanolamine.
For further information on
soldering and post-solder
cleaning, see Application Note
1027, Soldering LED
Components.
Contrast Enhancement
The objective of contrast
enhancement is to provide good
readability in the end user’s
7
+ 32
3 ROW
CHARACTER
SELECT
SELECT
ASCII DECODER
COLUMN
DATA
+ 7
5
ambient lighting conditions. By
using both luminance
(brightness) and chrominance
(color) contrast techniques, the
ON dots of the display can be
made to stand out against a dark
background.
For further information on
contrast enhancement, see
Application Note 1015, Contrast
Enhancement Techniques for
LED Displays.
ROW
SELECT
DRIVERS
ROW
DRIVERS
COLUMN
DISPLAY