An I/sup 2/L watch chip with direct LED drive

Autor: P.A. Tucci, L.K. Russell
Rok vydání: 1976
Předmět:
Zdroj: IEEE Journal of Solid-State Circuits. 11:847-851
ISSN: 1558-173X
0018-9200
DOI: 10.1109/jssc.1976.1050826
Popis: A three function watch circuit using I/SUP 2/L technology has been fabricated on a chip measuring 86 mils/spl times/96 mils. The circuit draws 7-10 /spl mu/A in the run mode and has on-chip segment and digit drivers which are capable of sourcing 15 mA and sinking up to 70 mA, respectively. The low frequency (
Databáze: OpenAIRE