Dual-supply translation for mixed-voltage buses
The SN74AVC8T245PWR is an 8-bit dual-supply translation transceiver from TI's 74AVC series, designed to bridge voltage domains between 1.2V and 3.6V on a single bus line. With two independent 8-bit elements, it handles 16-bit bidirectional data paths, making it a natural fit for memory interfaces where the controller core runs at 1.8V and the DRAM bank operates at 3.3V.
Supply range and voltage translation
The dual supply rails — VCCA and VCCB — each accept 1.2V to 3.6V independently, so the part translates bidirectionally between any two voltage levels in that window. A 1.8V logic controller talking to a 3.3V peripheral is the textbook case, but the same part also handles 1.2V-to-1.8V or 2.5V-to-3.3V without external level shifting. Each of the two elements drives 12 mA at both output high and low, which is enough to fan out to multiple loads on a short bus trace without a separate buffer. The 3-state outputs let multiple transceivers share the same data lines — a typical arrangement on a memory address bus or a shared peripheral interface. The 24-TSSOP package with 0.173-inch body width fits standard layout footprints and is offered in Tape & Reel for volume pick-and-place. Operating temperature spans -40°C to 85°C, covering industrial enclosures and telecom cabinets without a heat sink.
Lifecycle and supply posture
This is a current-production part suitable for both new designs and ongoing BOM replenishment. Sourced through independent distribution channels, the part is quoted to order against your BOM quantity. Availability and current pricing are confirmed at RFQ time; no stock-holding claim is made here.