Nexperia USA Inc. 74AVC32T245EC,518

Overview

74AVC32T245EC,518 from Nexperia is a 32-bit bidirectional voltage-translating transceiver with dual independent supplies (VCC(A): 0.8–3.6 V, VCC(B): 0.8–3.6 V), 3-state outputs, and IOFF partial power-down protection. It supports eight 8-bit ports or unified 32-bit data paths, enabling level translation between 0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V domains in high-density memory and processor interconnects.

For engineers reviewing the 74AVC32T245EC,518 datasheet, 74AVC32T245EC,518 pinout, 74AVC32T245EC,518 application, or 74AVC32T245EC,518 equivalent, this device delivers verified 380 Mbit/s throughput at ≥1.8 V→3.3 V translation, JEDEC-compliant I/O thresholds, suspend-mode isolation, and LFBGA96 packaging for space-constrained industrial and automotive control modules.

Technical Context

This transceiver implements four independent 8-bit bidirectional channels (1A/1B through 4A/4B), each with dedicated nDIR (direction) and nOE (output enable) inputs referenced to VCC(A). Direction control is synchronous: HIGH on nDIR routes data from nAn to nBn; LOW reverses flow. All I/O circuits are voltage-referenced-nAn/nDIR/nOE to VCC(A), nBn to VCC(B)-enabling true asymmetric voltage translation.

The IOFF circuit disables outputs when either VCC(A) or VCC(B) is at GND, blocking damaging backflow current during partial power-down. In suspend mode (VCC(A) = 0 V or VCC(B) = 0 V), both A- and B-side ports enter high-impedance OFF-state, meeting JESD78 Class II latch-up immunity (>100 mA) and supporting hot-swap and low-power system states.

Key Specifications

Pinout & Package

LFBGA96 package (SOT536-1), 13.5 × 5.5 × 1.05 mm, 0.5 mm ball pitch, with 16 GND balls, 4 VCC(A), 4 VCC(B), and fully symmetric I/O layout optimized for signal integrity in dense routing.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar bidirectional voltage translation applications.

Compared with SN74AVC32T245RHLR, the 74AVC32T245EC,518 offers superior thermal dissipation and mechanical reliability in automotive environments; versus TXB0304RUTR, it provides deterministic direction control, higher bandwidth, and full IOFF/suspend functionality essential for industrial real-time systems.

Availability

74AVC32T245EC,518 is available at Aetrix Electronics and suitable for automotive ADAS domain controllers, industrial motion controllers, and aerospace data concentrators requiring stable component supply across extended temperature and long product lifecycles.

Supply support for 74AVC32T245EC,518 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 high-volume, high-reliability logic, discrete, and MOSFET solutions, serving automotive, industrial, and computing markets with ISO/TS 16949-certified manufacturing.

The 74AVC32T245EC,518 belongs to Nexperia's Advanced Voltage Controlled (AVC) logic family, engineered specifically for ultra-low-voltage, high-speed bidirectional translation in next-generation heterogeneous computing architectures.

FAQ

What is the minimum valid voltage difference between VCC(A) and VCC(B)?

No minimum voltage difference is required: VCC(A) and VCC(B) may be equal (e.g., both 1.8 V) or differ by up to 2.8 V (e.g., 0.8 V and 3.6 V). The device maintains correct logic thresholds and output drive across the full 0.8–3.6 V range for each supply independently, as validated in Tables 7 and 12 of the datasheet.

Can nDIR and nOE be driven from different voltage domains than VCC(A)?

No-nDIR and nOE inputs are strictly referenced to VCC(A) and must be driven within 0.3×VCC(A) (LOW) and 0.65×VCC(A) (HIGH) thresholds per Table 7. Driving them from VCC(B) or another rail violates input specification and risks undefined behavior or latch-up.

Does the device support hot-plug insertion when one supply is already active?

Yes-IOFF circuitry ensures that if VCC(A) is powered and VCC(B) is at 0 V, all B-side outputs go high-impedance immediately, preventing back-current. This meets hot-plug requirements in modular compute blades and field-replaceable units, as confirmed in Section 6 (Functional description) and Table 3 (Function table).

How does propagation delay vary with load capacitance?

tpd increases linearly with load capacitance: e.g., at VCC(A)=VCC(B)=3.3 V, tpd rises from 2.7 ns (CL=0 pF) to 7 ns (CL=60 pF) for nAn→nBn path (Fig 7). Designers must include trace and receiver capacitance in timing budgets-typical CL values range from 5 pF (short PCB traces) to 25 pF (longer routed buses).