74LVC2T45DC,125

The 74LVC2T45DC,125 by NXP Semiconductors is a dual bit, dual supply translating transceiver with 3-state outputs, enabling bidirectional level translation. It features two 2-bit input-output ports (nA and nB), a direction control input (DIR), and dual supply pins (VCC(A) and VCC(B)). Both VCC(A) and VCC(B) can be supplied at any voltage between 1.2 V and 5.5 V, making the device suitable for translating between various low voltage nodes including 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, and 5.0 V.

Key electrical characteristics include a wide supply voltage range from 1.2 V to 5.5 V for both VCC(A) and VCC(B). It supports maximum data rates up to 420 Mbps for 3.3 V to 5.0 V translation and 210 Mbps when translating to 3.3 V. The device also features ±24 mA output drive at 3.0 V and accepts input voltages up to 5.5 V. It operates within a temperature range of -40 °C to +125 °C.

This transceiver is designed for partial power-down applications using IOFF circuitry, which disables the output to prevent backflow current. In suspend mode, if either VCC(A) or VCC(B) is at GND level, both A and B ports enter a high-impedance OFF-state. The 74LVC2T45DC,125 is available in a VSSOP8 package and is suitable for surface mount applications.

Compliance includes JESD8-7, JESD8-5, JESD8C, and JESD36 standards. ESD protection is robust, exceeding 4000 V for HBM and 1000 V for CDM. Latch-up performance exceeds 100 mA per JESD 78 Class II.