1987.0487.148 Texas Instruments Collection Object

Numeric LED Display - 1973
TI number: G00443

This device is an prototype sample of type TIL505 from about 1973. It consists of 20 gallium arsenide phosphide die in a rectangular 8 configuration plus two decimal points and an IC chip mounted on a ceramic plug-in header and hermetically sealed to a glass cover.

This device was introduced in 1973 and produced by TI until 1985. It is electrically interchangeable with the TIL311, a plastic encapsulated device. The TIL 505 was also assigned the JEDEC registration number of 4N56. The IC logic chip is an X718, indicating it was a special chip for this application. In 1985, the product was transferred to Texas Optoelectronics Inc. (TOI) of Garland, Texas.
Texas Instruments (Don Cornett, Ron Grotti.)

Contact Nance L. Briscoe for further information



National Museum of American History


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