EMITTER COUPLED LOGIC
\ɪmˈɪtə kˈʌpə͡ld lˈɒd͡ʒɪk], \ɪmˈɪtə kˈʌpəld lˈɒdʒɪk], \ɪ_m_ˈɪ_t_ə k_ˈʌ_p_əl_d l_ˈɒ_dʒ_ɪ_k]\
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(ECL) (Or "Current Mode Logic") A technology for buildinglogic gates where the emitter of a transistor is used as theoutput rather than its collector. ECL has a propagation timeof 0.5 - 2 ns (faster than TTL) and a power dissipation 3 -10 times higher than TTL.
By Denis Howe
