Mismatched I/O voltages between microprocessors and peripheral devices continue to occur as microprocessor I/O voltages migrate to lower nodes and peripherals maintain higher voltage nodes.
To help designers out, Texas Instruments has added four new dual-supply level translation transceivers to its portfolio of translation products.
The SN74LVC1T45, SN74LVC2T45, SN74AVC8T245, and the SN74AVC20T245 allow flexible bi-directional level translation between 1.5V, 1.8V, 2.5V, 3.3V, and 5V voltage nodes. They also offer full configurability with each rail being configurable from 1.4V to 3.6V in the AVC technology and 1.65V to 5.5V in the LVC technology.
The AVC translators feature 12mA current drive and propagation delays of 3.5ns (typ) when translating from 1.8V to 3.3V. Translators in the LVC technology have a max drive current of 32mA and propagation delays of 4ns (typ) when translating from 3.3V to 5V.
Initial pricing for these devices range from $0.40 to $2.50 per 1000 units. All four devices are currently sampling along with other TI Dual-Supply Level Translation devices.