The Texas Instruments SN74LVC8T245DBQR is a dual-supply 8-bit translation transceiver from the 74LVC logic family. It provides bidirectional voltage-level translation between two independent supply rails, each operating from 1.65V up to 5.5V. The part integrates two 8-bit elements with 3-state outputs, each capable of sinking or sourcing 32mA. Typical applications include mixed-voltage system interfaces, memory-bus translation, and general-purpose level shifting in telecom, industrial control, and computing equipment where 3.3V and 1.8V or 5V domains must communicate.
Supply range and level translation — the key decision driver
It allows direct translation between any two standard logic voltages within that window — for example, 1.8V to 3.3V, 2.5V to 5V, or 3.3V to 1.8V. The direction control pins (DIR) per element set the data flow, and the output-enable (OE) pin puts all outputs into high-impedance state for bus isolation.
Package and footprint — 24-SSOP narrow-body
The narrow-body width saves lateral board space compared to a 24-SOIC wide-body (7.5mm) or 24-TSSOP (4.4mm) alternative.
It is ROHS3 compliant. For production BOM lines, this part presents no imminent obsolescence risk.