LTD-2701Y

Display Type:	7-Segment
Package / Case:	10-DIP (0.300", 7.62mm)
Power Dissipation (Max):	60mW
Wavelength - Peak:	585nm
Millicandela Rating:	2mcd
Current - Test:	20mA
Voltage - Forward (Vf) (Typ):	2.1V
Color:	Yellow
Common Pin:	Common Cathode
Series:	--
Digit/Alpha Size:	0.28" (7.00mm)
Size / Dimension:	0.394" H x 0.591" W x 0.240" D (10.00mm x 15.02mm x 6.10mm)
Number of Characters:	2
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tube

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LTD-2701Y Application Field and Working Principle

The LTD-2701Y is a LED numeric and character display module supplied by Lead Technologies. It is part of the company’s LED Character and Numeric Display Modules range of products. The LTD-2701Y is a 2 × 16 character display module with an integrated LCD controller, suitable for a wide range of applications that benefit from displaying numerical or textual information. It features automatic addressing, making it easy to connect together several LTD-2701Y modules with the same lines, requiring only simple extra connections for each added module. As it is a character and numeric display, the LTD-2701Y can be programmed to display various information, such as time, temperature, or messages, on its two lines. The LTD-2701Y’s operating voltage is 5V DC and is powered by an HD44780 compatible driver. It has an integrated regulator, capable of providing up to 12V DC voltage. This means that a single power supply can be used to overcome voltage drops over long wiring runs, reducing the amount of power spikes and surges that can lead to damage to other electronics. The display module is available in two versions: single color - usually red - or tri-color. The latter can be used to display three different colors by combining the three LEDs\' outputs. The LTD-2701Y is very bright, allowing for better visibility even in direct sunlight. It is also available as LED only or LED and infrared LED versions. The LTD-2701Y is ideal for both indoor and outdoor applications and is highly resistant to extreme temperatures and harsh environments. Its high-precision and reliable design makes it an ideal choice for both single-unit and multiple display applications. The LTD-2701Y works by using an integrated driver to convert digital signals from a microcontroller system into analogue signals. The driver is capable of driving up to 32 displays, which can be connected together in series. Each display is driven by 2 transistor-transistor logic (TTL) lines - one for the upper line and one for the lower. The two lines carry the information to be displayed and the output is sent to the LED, where it is converted into a readable format. The functioning of the LTD-2701Y is quite simple, as the module is programmed to respond to a few simple commands. The central processing unit (CPU) sends the data, in the form of either ASCII or 8-bit code, to the display via the two TTL lines. The driver then converts the data into a corresponding voltage which is sent to the LEDs, instructing them which characters to display and in what order. In conclusion, the LTD-2701Y is an ideal choice for projects that require numerical and textual information display. With its low-cost, easy connection, and high-precision, this display module is suitable for both indoor and outdoor applications.

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