|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.)