PD4437

Common Pin :
Operating Voltage :
Operating Current :
Packaging :
Minimum Operating Temperature : - 40 C
Illumination Color : Green
Wavelength : 565 nm
Display Type : 5 x 7 Dot Matrix
Number of Digits : 4
Character Size : 0.45 in
Maximum Operating Temperature : + 70 C


Features:

• Four Dot Matrix Characters in High Efficiency Red,Red, and Bright Green
PD2435/6/7, 0.200" High
PD3535/6/7, 0.270" High
PD4435/6/7, 0.45" High
• Built-in Memory, Decoders, Multiplexer and Drivers
• Wide Viewing Angle, X Axis ±55°, Y Axis±65°
• Categorized for Luminous Intensity
• 128 Character ASCII Format (Upper and Lower Case Characters)
• 8 Bit Bidirectional Data BUS
• READ/WRITE Capability
• Dual In-Line Package Configuration, 0.600" Wide,0.100" Pin Centers
• End-Stackable Package
• Internal or External Clock PD243X PD353X PD443X
• Built-in Character Generator ROM
• TTL Compatible
• Easily Cascaded for Multidisplay Operation
• Less CPU Time Required
• Software Controlled Features:
Programmable Highlight Attribute (Blinking, Non-Blinking)
Asynchronous Memory Clear Function
Lamp Test
Display Blank Function
Single or Multiple Character Blinking Function
Programmable Intensity Three Brightness Levels
• Extended Operating Temperature Range:
PD243X, PD353X: 40 to +85
PD443X: 40 to +70


Specifications

DC Supply Voltage.................................................. 0.5 V to +7.0 Vdc
Input Voltage Relative to GND (all inputs)....... 0.5 V to V_CC +0.5 Vdc
Operating Temperature PD243X/353X......................... 40 to +85
PD443X......................................................................... 40to +70
Storage Temperature................................................. 40 to +100
Maximum Solder Temperature, .063" (1.59 mm)
below Seating Plane, t<5 sec. .................................................... 260


Description

The PD4437 is four digit display system modules. The characters are 0.20" by 0.14"(PD243X), 0.27" by 0.20" (PD353X), and 0.45" by 0.27"(PD443X) 5x7 dot matrix arrays constructed with the latest solid state technology in light emitting diodes. Driving and controlling the LED arrays is a silicon gate CMOS integrated circuit. This integrated circuit provides all necessary LED drivers and complete multiplexing control logic.

Additionally, the PD4437 has the necessary ROM to decode 128 ASCII alphanumeric characters and enough RAM to store the display's complete four digit ASCII message with special attributes. These attributes, all software  rogrammable at the user's discretion, include a lamp test,brightness control, displaying cursors, alternating cursors and characters, and flashing cursors or characters.

The PD4437 also incorporates special interface control circuitry to allow the user to control the module as a fully supported microprocessor peripheral. The module,under internal or external clock control, has asynchronous read, write, and memory clear over an eight bit parallel,TTL compatible, bi-directional data bus. Each module is fully encapsulated within a package 1.0" x 0.7" x 0.2" (PD253X), 1.4" x 0.72" x 0.285" (PD353X), and 1.5"x 0.82" x 0.285" (PD443X). The standard 20 pin DIP construction with two rows spaced at 0.6" on 0.1" centers is wave solderable.

See the end of PD4437's data sheet or refer to Appnotes 18,19, 22, and 23 for further details on handling and assembling
Siemens Programmable Displays.

Parameters:

Technical/Catalog Information	PD4437
Vendor	OSRAM Opto Semiconductors Inc
Category	Optoelectronics
Color	Green
Size / Dimension	1.50" L x 0.82" W x 0.29" H (38.10mm x 20.83mm x 7.24mm)
Millicandela Rating	-
Configuration	-
Voltage - Forward (Vf) Typ	-
Internal Connection	-
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	PD4437 PD4437 475 1424 ND 4751424ND 475-1424