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Application Notes


This application report explores the possibilities for migrating to 3.3-V and 2.5-V power supplies and discusses the implications. Customers are successfully using a wide range of low-voltage, 3.3-V logic devices. These devices are within Texas Instruments (TI) advanced low-voltage CMOS (ALVC), crossbar technology (CBT), crossbar technology with integrated diode (CBTD), low-voltage crossbar technology (CBTLV) and low-voltage CMOS ?A? revision (LVC-A) logic families. Additionally, TI plans to release a level shifter that generates valid 3.3-V and 2.5-V signals. The transition from 5-V to 3.3-V logic began with core logic converting first to the lower power-supply level. Although memory is still primarily at the 5-V level, it is being converted to 3.3 V, and this conversion will continue. The same method of migration is expected for 3.3 V to 2.5 V, with memory logic following core logic by several years.