CMOS And TTL: A Level Shifting Cautionary Tale Comparison of TTL and CMOS logic thresholds with comparison to 3.3V output. NXP application note 240 (PDF). When directly driving logic you’d ...

A pull-up resistor is required to achieve a true high state in level translation, and is used to translate transistor-transistor logic (TTL) to CMOS logic. LLT performance can be described by a number ...

The first commercially produced TTL micrologic chips were Sylvania’s Universal High-Logic Level (SUHL) and the successor SUHL II series. Texas Instruments (TI) would introduce the 5400 TTL ...

Differential (ECL) logic level translators that interface with ECL, PECL, CML, LVDS, HSTL, HCSL, TTL, and CMOS devices. Logic Family = TTL. Logic Function = Translator. Translation = TTL to PECL.