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Integrated Injection Logic
Integrated injection logic (IIL, I2L, or I2L) is a class of digital circuits built with multiple collector bipolar junction transistors (BJT). When introduced it had speed comparable to TTL yet was almost as low power as CMOS, making it ideal for use in VLSI (and larger) integrated circuits. The gates can be made smaller with this logic family than with CMOS because complementary transistors are not needed. Although the logic voltage levels are very close (High: 0.7V, Low: 0.2V), I2L has high noise immunity because it operates by current instead of voltage. I2L was developed in 1971 by Siegfried K. Wiedmann and Horst H. Berger who originally called it merged-transistor logic (MTL). A disadvantage of this logic family is that the gates draw power when not switching unlike with CMOS. Construction The I2L inverter gate is constructed with a PNP common base current source transistor and an NPN common emitter open collector inverter transistor (i.e. they are connected to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
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I2L Inverter NPN
I, or i, is the ninth Letter (alphabet), letter and the third vowel letter of the Latin alphabet, used in the English alphabet, modern English alphabet, the alphabets of other western Languages of Europe, European languages and others worldwide. Its name in English is English alphabet#Letter names, ''i'' (pronounced ), plural ''ies''. Name In English, the name of the letter is the "long I" sound, pronounced . In most other languages, its name matches the letter's pronunciation in open syllables. History In the Phoenician alphabet, the letter may have originated in a Egyptian hieroglyphs, hieroglyph for an arm that represented a voiced pharyngeal fricative () in Egyptian language, Egyptian, but was reassigned to (as in English "yes") by Semites because their word for "arm" began with that sound. This letter could also be used to represent , the close front unrounded vowel, mainly in foreign words. The Ancient Greeks, Greeks adopted a form of this Phoenician alphabet, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |