30058 Parallax Inc, 30058 Datasheet - Page 13

• Manufacturer Part Number: 30058
• Description: SER LCD 4X20 W/KEYBRD INTERFACE
• Manufacturer: Parallax Inc

Specifications of 30058

• Interface: Serial
• Display Type: LCD - Monochrome
• Display Mode: Reflective
• Viewing Area: 82.20mm L x 18.20mm W
• Backlight: LED - White
• Character Count X Line: 20 x 4
• Module Size (w X H X T): 98 mm x 60 mm x 27.5 mm
• Voltage Rating: 4.75 V to 5.25 V
• Operating Temperature Range: 0 C to + 50 C
• For Use With: 27963 - SOLUTIONS CUBED: MEMKEY
• Dot Size: -
• Dot Pitch: -
• Dot Pixels: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q2089249

2 Hardware Information
2.1 DB-9 Connector
standard signal levels of
setting the Protocol Select Jumpers to TTL. As an added feature it is also possible to apply power through
pin 9 of the DB-9 Connector in order to reduce cable clutter. However, in order to accomplish this you must
set the Power Through DB-9 Jumper.
Matrix Orbital
Refer to the following diagram for this chapter:
The LK204-25 provides a DB-9 Connector to readily interface with serial devices which use the EIA232
1
2
3
4
DB-9 Connector
Power Through DB9 Jumper
GPOs
Manual Override
12V to
12V. It is also possible to communicate at TTL levels of 0 to +5V by
Figure 13: LK204-25
LK204-25
5
6
7
8
Power / Data Connector
Keypad Interface
Protocol Select Jumpers
Dallas 1-Wire Bridge
9