29121 Parallax Inc, 29121 Datasheet - Page 2

• Manufacturer Part Number: 29121
• Description: MODULE APP: LCD TERMINAL 2X8
• Manufacturer: Parallax Inc

Specifications of 29121

• Display Type: LCD - Monochrome
• Display Mode: Reflective
• Number Of Digits/alpha: 16
• Display Format: 8 x 2
• Character Format: *
• Voltage - Supply: 5.0V
• Interface: Parallel
• Character Count X Line: 8 x 2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Backlight: -
• Viewing Area: -
• Outline L X W X H: -
• Dot Size: -
• Character Size: -
• Lead Free Status / Rohs Status: Details

Board Installation
The LCD Terminal AppMod’s 20-pin male header plugs directly into the 2x10 socket. Before installation,
be sure to check the board silkscreen labels for proper orientation. The photos below show the proper
orientation on a Super Carrier Board (left) and a Board of Education (right). Use caution: reversing the
connection could result in applying power to the LCD’s ground pins and could damage your unit.
Schematic
Copyright © Parallax, Inc.
P7
P6
P5
P4
P3
P2
P1
10 k
1 k
Vdd
LCD Terminal AppMod (#29121)
14
13
12
11
4
5
6
D7
D7
D6
D6
D5
D5
D4
D4
RS
RS
R/W
RW
E
1
2
Vdd
Vdd
Vss
10 k
3
Vo
2 x 8 LCD
v1.2 8/1/2008 Page 2 of 9