Nexperia USA Inc. 74AVC4T245GU-Q100X

Overview

74AVC4T245GU-Q100 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 to 3.6 V). It functions as two 2-bit or one 4-bit transceiver with direction control (nDIR), output enable (nOE), and IOFF partial power-down. Used in automotive infotainment domain controllers interfacing 1.2 V SoC cores with 3.3 V sensor buses.

For engineers reviewing the 74AVC4T245GU-Q100 datasheet, 74AVC4T245GU-Q100 pinout, 74AVC4T245GU-Q100 application, or 74AVC4T245GU-Q100 equivalent, key selection criteria include asymmetric voltage translation capability, AEC-Q100 Grade 1 qualification, suspend-mode isolation, IOFF leakage < ±5 μA at 125 °C, and propagation delay ≤ 9.1 ns (A→B, VCC(A)=3.3 V, VCC(B)=1.2 V).

Technical Context

This device implements dual-rail CMOS I/O architecture with separate VCC(A) and VCC(B) supplies, where nAn/nDIR/nOE inputs reference VCC(A), and nBn I/Os reference VCC(B). Direction control is synchronous: HIGH on nDIR enables A→B data flow; LOW enables B→A.

IOFF circuitry actively disables outputs during power-down (e.g., VCC(A) = 0 V, VCC(B) = 3.3 V), limiting backflow current to ±5 μA. Suspend mode forces all I/Os to high-impedance when either supply is at GND, meeting automotive ASIL-B system-level isolation requirements.

Key Specifications

Pinout & Package

XQFN16 package (SOT1161-1) with 16 terminals, 0.4 mm pitch, side-wettable flanks for AOI-compatible solder joint inspection. Body size: 1.80 mm × 2.60 mm × 0.50 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74AVC4T245QPWRQ1 and 74LVC4T245PW-Q100, the 74AVC4T245GU-Q100 uniquely delivers 0.8 V compatibility, XQFN16 ultra-thin packaging, and 380 Mbit/s performance - making it the sole option for next-gen automotive vision systems requiring minimal stack height and wide voltage interoperability.

Availability

74AVC4T245GU-Q100 is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment domain controllers, and electric power steering sensor hubs requiring stable component supply across extended temperature ranges and AEC-Q100 compliance.

Supply support for 74AVC4T245GU-Q100 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 leading semiconductor manufacturer specializing in high-performance, high-reliability logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74AVC4T245-Q100 belongs to Nexperia's automotive-qualified AVC logic family, designed specifically for voltage translation in safety-critical vehicle subsystems requiring AEC-Q100 Grade 1 operation and robust IOFF protection.

FAQ

What is the minimum valid voltage for VCC(A) and VCC(B) during active operation?

The absolute minimum supply voltage for functional operation is 0.8 V for both VCC(A) and VCC(B), as confirmed in Table 6 (Recommended Operating Conditions). Operation below 0.8 V risks undefined logic states and violates JEDEC JESD8-12 compliance for 0.8 V–1.3 V systems. Static characteristics (Table 7) are specified down to 0.8 V, and dynamic timing (Table 13) is characterized starting at VCC = 1.1 V.

Can 74AVC4T245GU-Q100 translate between 0.8 V and 3.6 V simultaneously?

Yes - the device supports simultaneous 0.8 V (VCC(A)) to 3.6 V (VCC(B)) translation, as explicitly stated in Section 1: "Both VCC(A) and VCC(B) can be supplied at any voltage between 0.8 V and 3.6 V". Input thresholds scale with respective supplies (VIH = 0.65×VCC(A), VIL = 0.35×VCC(A)), enabling reliable detection of 0.8 V logic levels on the A side while driving full 3.6 V swing on the B side.

How does suspend mode behave when VCC(A) = 0 V and VCC(B) = 3.3 V?

In this condition, the device enters suspend mode per Table 4: all I/Os (1A1, 1A2, 2A1, 2A2, 1B1, 1B2, 2B1, 2B2) go to high-impedance OFF-state regardless of nDIR/nOE states. This is verified in Section 1: "In suspend mode when either VCC(A) or VCC(B) are at GND level, both nAn and nBn are in the high-impedance OFF-state", preventing bus contention or backfeed.

Is the XQFN16 package (SOT1161-1) compatible with standard reflow profiles?

Yes - the SOT1161-1 package is qualified for standard lead-free reflow per J-STD-020, with peak temperature up to 260 °C. Its side-wettable flanks enable automated optical inspection (AOI) of solder joints, and thermal characteristics (Ptot = 250 mW, θJA ≈ 180 K/W) are validated in Table 8. No special profile deviation is required beyond IPC Class 3 guidelines.