ABRA Electronics :: Parallax :: Parallax Displays :: 30058 Parallax 4x20 Serial LCD with Keypad Interface

Do you need more general purpose outputs, a keypad interface (up to a 5x5 Keypad), and a cool screen? If you answered yes to more than one of these items, this is the LCD for you! Below is a description with information relating to the size and functionality of this new device. The Matrix Orbital part number is LK204-25-WB. This version is pre-modified for BASIC Stamp module-compatibility (TTL level).

General Description:

Description: 20 characters x 4 lines
Keypad Interface: 25
General Purpose Output: 6
Module size: 98.0mm(L) x 60.0mm(W) x 27.5mm(T)
Display size: 76.3mm(L) x 25.0mm(W)
Character size: 2.95 x 4.75mm
Appearance: Inverse Blue with white back light

Interfaces:

Interface with up to 25-key keypad (5x5)
Use 6 General Purpose Outputs
Communicate over RS232 or I²C (Connect up to 16 displays over I²C)

Functional Capabilities:

Display text, horizontal & vertical bar graphs and large digits
Line wrapping, scrolling, contrast, backlight and time-out setting (up to 180 minutes)
Software and manual on CD-ROM
Available in a PC drive bay insert

Speed:

RS232 mode (Compatible with TTL levels) : 1200bps to 19.2 Kbps
I²C mode: Serial transfers of up to 100 Kbps
Fully buffered - no delays in transmission

Power Requirements(Ta = 25°C, Vin = 5.0V):

Operates at 0ºC to +50ºC
Supply Voltage: +4.75 to +5.25Vdc
Supply Current: 10mA typical
Backlight Supply Current: 90mA typical

Downloads:
4x20 Serial LCD Manual (.pdf)
Old 4x20 Serial LCD Manual (.pdf)
Errata for LK204-25 v1.2 (.pdf)