Nexperia USA Inc. 74AVC4T245PW,112

Overview

74AVC4T245PW,112 from Nexperia is a 4-bit dual-supply translating transceiver enabling bidirectional level translation between independent voltage domains (VCC(A) and VCC(B), each 0.8 V–3.6 V). It supports two 2-bit or one 4-bit configuration, features active-low direction control (nDIR) and output enable (nOE), and delivers up to 380 Mbit/s data rate for ≥1.8 V to 3.3 V translation. It is used in mixed-voltage SoC interconnects, FPGA I/O bridging, and memory interface voltage adaptation.

For engineers reviewing the 74AVC4T245PW,112 datasheet, 74AVC4T245PW,112 pinout, 74AVC4T245PW,112 application, or 74AVC4T245PW,112 equivalent, key selection criteria include configurable bidirectional translation, IOFF-enabled partial power-down, suspend-mode isolation when either supply is at GND, JEDEC-compliant low-voltage operation (down to 0.8 V), and TSSOP16 package compatibility with industrial temperature range (−40 °C to +125 °C).

Technical Context

This device implements dual-rail CMOS logic with separate input-reference domains: nAn, nDIR, and nOE are referenced to VCC(A); nBn ports are referenced to VCC(B). Direction control is synchronous and non-latched - HIGH on nDIR enables A→B transmission, LOW enables B→A. Output enable (nOE) is active-low and independently disables both A- and B-side outputs into high-impedance state.

The IOFF circuit ensures leakage current remains ≤±5 μA when either VCC(A) or VCC(B) is at 0 V, enforcing bus isolation during partial power-down. Suspend mode activates automatically if either supply drops to GND, placing all I/O pins (nAn, nBn) into high-impedance OFF-state regardless of control inputs.

Key Specifications

Pinout & Package

TSSOP16 plastic thin shrink small outline package (SOT403-1), 16 leads, body width 4.4 mm, lead pitch 0.65 mm, exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-supply translating transceiver applications.

Compared with SN74AVC4T245PWR and 74LVC4T245PW,112, the 74AVC4T245PW,112 uniquely supports full −40 °C to +125 °C operation, true dual-rail translation down to 0.8 V, and hardware-enforced IOFF/suspend isolation - making it the sole option for thermally demanding, mixed-voltage embedded systems requiring guaranteed bus safety during power transitions.

Availability

74AVC4T245PW,112 is available at Aetrix Electronics and suitable for industrial automation, automotive ADAS modules, and high-reliability computing systems requiring stable component supply across extended temperature ranges and mixed-voltage interfaces.

Supply support for 74AVC4T245PW,112 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance, reliable standard products including logic, discrete, and MOSFET solutions.

The 74AVC4T245 belongs to Nexperia's Advanced Very-Low-Voltage CMOS (AVC) logic family, engineered specifically for ultra-low-voltage bidirectional translation in space-constrained, power-sensitive applications such as mobile, IoT, and automotive electronics.

FAQ

Can 74AVC4T245PW,112 translate between 0.8 V and 3.3 V simultaneously?

Yes. VCC(A) can be set to 0.8 V while VCC(B) is set to 3.3 V, enabling direct bidirectional translation. The device guarantees operation across this full range, with maximum data rate reduced to 100 Mbit/s for 0.8 V ↔ 3.3 V translation per datasheet Table 2.

What happens to the I/O pins when VCC(A) = 0 V and VCC(B) = 1.8 V?

In this condition, the device enters suspend mode: all nAn and nBn pins go to high-impedance OFF-state regardless of nDIR or nOE states. This prevents back-driving and bus contention, with IOFF limiting leakage to ≤±5 μA per port.

Is the TSSOP16 package (SOT403-1) RoHS and REACH compliant?

Yes. The 74AVC4T245PW,112 in TSSOP16 packaging meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, with lead-free terminations and halogen-free molding compound as confirmed in Nexperia's official compliance documentation.

How does the 74AVC4T245PW,112 differ from the 74AVC4T245BQ (DHVQFN16)?

The 74AVC4T245PW,112 uses TSSOP16 (SOT403-1) with gull-wing leads for through-hole or fine-pitch reflow; the 74AVC4T245BQ uses DHVQFN16 (SOT763-1) with exposed thermal pad and no leads. Both share identical electrical specs and temperature rating, but thermal resistance (RθJA) differs: 110 K/W (TSSOP) vs 50 K/W (DHVQFN), affecting power dissipation limits in high-density layouts.