Nexperia USA Inc. 74LVC8T245PW,118

Overview

74LVC8T245PW,118 from Nexperia is an 8-bit dual-supply translating transceiver with 3-state outputs, enabling bidirectional level translation between voltage domains of 1.2 V to 5.5 V (e.g., 1.8 V ↔ 3.3 V or 2.5 V ↔ 5.0 V). It features independent VCC(A) and VCC(B) supplies, DIR-controlled data direction, active-low OE for bus isolation, and IOFF circuitry for partial power-down protection. Used in mixed-voltage I²C, SPI, and parallel bus interfacing in industrial controllers and FPGA I/O expansion.

For engineers reviewing the 74LVC8T245PW,118 datasheet, 74LVC8T245PW,118 pinout, 74LVC8T245PW,118 application, or 74LVC8T245PW,118 equivalent, key selection criteria include dual-rail voltage flexibility, 420 Mbps max data rate (3.3 V → 5.0 V), ±24 mA drive strength at 3.0 V, suspend-mode high-impedance behavior, and JEDEC-compliant noise immunity across JESD8-7/8-5/8C/36 standards.

Technical Context

This device implements a bidirectional, direction-controlled bus transceiver architecture where An pins reference VCC(A) and Bn pins reference VCC(B); DIR logic level selects transmission path (An→Bn or Bn→An), while OE asserts high-impedance on both ports. The IOFF circuit ensures leakage current remains ≤±2 μA when either supply is at GND, enabling safe hot-swap and suspend-mode operation.

It supports full rail-to-rail input tolerance (up to 5.5 V), includes bus-hold circuitry on all I/Os in the LVCH variant (not applicable to LVC), and meets latch-up immunity >100 mA per JESD78B Class II. Propagation delays range from 0.3 ns (OE→An at 5.0 V) to 13.6 ns (OE→Bn at 1.2 V), with dynamic power dissipation capacitance as low as 1 pF on A-port (A→B direction).

Key Specifications

Pinout & Package

TSSOP24 package (SOT355-1), 4.4 mm body width, 0.65 mm pitch, 24-pin surface-mount with exposed thermal pad (non-soldered by default). Pin 1 index located at top-left corner; GND pins at positions 11, 12, 13 ensure low-inductance return paths for both supply domains.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74AVC8T245RHLR and TXB0108PWR, the 74LVC8T245PW,118 uniquely supports full 1.2 V–5.5 V dual-rail operation with verified 420 Mbps performance and IOFF-enabled suspend mode-critical for automotive and industrial systems requiring wide voltage interoperability and safe power sequencing.

Availability

74LVC8T245PW,118 is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, FPGA I/O expansion, and server baseboard management requiring stable component supply across extended temperature and mixed-voltage conditions.

Supply support for 74LVC8T245PW,118 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 logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.

The 74LVC series targets cost-sensitive, high-reliability applications demanding wide supply range, low static power (<30 μA ICC), and robust ESD/latch-up immunity-designed specifically for mixed-voltage board-level integration in harsh environments.

FAQ

What is the minimum operating voltage for VCC(A) and VCC(B)?

The absolute minimum recommended operating voltage for both VCC(A) and VCC(B) is 1.2 V, validated across −40 °C to +125 °C. Operation below 1.2 V is not guaranteed per datasheet specifications and may result in undefined logic thresholds or increased propagation delay variation.

Can the 74LVC8T245PW,118 translate between 5.0 V and 1.2 V directly?

Yes - it supports direct 5.0 V ↔ 1.2 V translation: VCC(A) = 5.0 V and VCC(B) = 1.2 V (or vice versa), with An inputs tolerant up to 5.5 V. Data rates are reduced to 60 Mbps at 1.5 V B-side and 75 Mbps at 1.8 V B-side, per Table 2 in the datasheet.

Is bus-hold functionality present on this variant?

No - bus-hold (IBHL/IBHH) is exclusive to the 74LVCH8T245 variant. The 74LVC8T245PW,118 lacks internal bus-hold circuitry; external pull-up/down resistors are required on floating I/Os to maintain valid logic states during idle periods.

How does the IOFF feature behave during power sequencing?

When either VCC(A) or VCC(B) is at GND, the IOFF circuit forces both A- and B-port outputs into high-impedance state with leakage ≤±2 μA, preventing back-current flow. This enables safe "hot-plug" of powered subsystems without damaging unpowered logic sections.