Inovasi merupakan salah satu kata kunci di masa depan, terutama di dunia rekayasa. Untuk itu diperlukan pemikiran-pemikiran yang inovatif. Agar dapat berpikir inovatif, mahasiswa dapat belajar dari kasus-kasus rekayasa yang menggambarkan best practices. Dengan studi kasus itu mahasiswa dapat membuka wawasan tentang suatu permasalahan dalam kegiatan pembelajarannya.
Berikut ini gambar diagram skema sebuah gerbang TTL NAND dengan dua input yang standard.
Prinsip kerja gerbang TTL NAND ini dapat dianalisis dengan memberi input LOW dan Imput LOW. Jika input A diberi LOW dan input B diberi LOW, maka transistor menjadi cutoff, sehingga tabel kebenaran sebagai berikut.
INP A
INP B
OUT F
L
L
H
L
H
H
H
L
H
H
H
L
INP A
INP B
OUT F
L
L
H
L
H
H
H
L
H
H
H
L
INP1
INP2
INP3
OUT
L
L
L
H
L
L
H
H
L
H
L
H
L
H
H
H
H
L
L
H
H
L
H
H
H
H
L
H
H
H
H
L
Buatlah diagram skema sebuah gerbang Standard 4-input TTL NAND yang layout-nya seperti pada gambar di bawah ini.
"The future of integrated electonics is the future of electronics itself," stated G.E. Moore in 1965. He then went on predicting that 'the number of transistor per chip will
double every 18 months', a law that bears his name: Moore's Law. This law then enables expanding markets and revenues of electronic industry, which in turn enable larger research
and development (R & D) and manufacturing investments, which again in turn enables the exponential trends in technology productivity, as govern by Moore's Law.
The complexity for minimum component costs has increased at a rate of roughly a factor of two per year. Certainly over the short term this rate can be expected to continue, if not to
increase. Over the longer term, the rate of increase is a bit more uncertain, although there is no reason to believe it will not remain nearly constant for at least 10 years. That
means by 1975, the number of components per integrated circuit for minimum cost will be 65,000. I believe that such a large circuit can be built on a single wafer.
-– Gordon E Moore --
(Electronics, Volume 38, Number 8, April 19, 1965)
0 Comments:
Post a Comment
<< Home