Nexperia USA Inc. 74LVCH16245ADGVJ

Overview

74LVCH16245ADGVJ from Nexperia is a 16-bit dual-directional bus transceiver with independent 8-bit channel control, 3-state outputs, 5 V-tolerant inputs (up to 5.5 V), and integrated bus hold on all data I/Os. It operates from 1.2 V to 3.6 V supply, supports mixed-voltage translation between 3.3 V and 5 V systems, and features IOFF partial power-down protection. Used in high-density PCB interconnects for FPGA-to-ASIC data buses and memory expansion interfaces.

For engineers reviewing the 74LVCH16245ADGVJ datasheet, 74LVCH16245ADGVJ pinout, 74LVCH16245ADGVJ application, or 74LVCH16245ADGVJ equivalent, this page delivers verified functional architecture, TVSOP48 pin mapping, bus hold current specs, propagation delay at 3.3 V (2.4 ns typ), and validated alternatives for voltage-level bridging in industrial control backplanes.

Technical Context

This device implements two independent 8-bit bidirectional data paths, each controlled by dedicated DIR and OE signals (1DIR/1OE and 2DIR/2OE), enabling flexible half-duplex or full-duplex bus arbitration. Schmitt-trigger inputs tolerate slow-rising signals, and the IOFF circuit ensures zero backflow current during power sequencing.

All 32 data I/O pins (1A0–1A7, 1B0–1B7, 2A0–2A7, 2B0–2B7) feature active bus hold-eliminating external pull-ups-with sustaining currents of ±75 μA at VCC = 3.0 V and VI = 0.8 V (LOW) or 2.0 V (HIGH). The design targets low-noise operation via multiple GND/VCC pins and flow-through pinout.

Key Specifications

Pinout & Package

74LVCH16245ADGVJ uses the SOT480-1 package: TVSOP48 (plastic thin shrink small outline, 48 leads, 0.4 mm pitch, 4.4 mm body width).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit bidirectional bus transceiver applications.

Compared with SN74LVC16245ADGGR, 74LVCH16245ADGVJ saves 32 passive components and improves reliability in floating-bus scenarios; versus 74ALVCH16245T, it trades 0.5 ns speed for universal 1.2–3.6 V compatibility and broader temperature support.

Availability

74LVCH16245ADGVJ is available at Aetrix Electronics and suitable for industrial PLC backplanes, FPGA-to-ASIC interfaces, memory expansion subsystems, and automotive diagnostic gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVCH16245ADGVJ 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 industrial, automotive, and computing markets.

This device belongs to Nexperia's 74LVC/LVCH advanced logic family, engineered for low-power, mixed-voltage system interfacing with robust ESD resilience and extended thermal operation.

FAQ

Does 74LVCH16245ADGVJ support true 5 V operation on VCC?

No. VCC must be between 1.2 V and 3.6 V. However, all data I/O pins tolerate up to 5.5 V regardless of VCC level-enabling safe connection to 5 V peripherals while powered from 3.3 V or lower. This is not 5 V core operation but 5 V-tolerant I/O, confirmed in Table 5 (VI max = 5.5 V) and Section 1 General Description.

How does bus hold behave when an input exceeds VCC?

The bus hold circuit automatically disables when VI > VCC, allowing 5.5 V signals to pass without contention. Per Section 9 footnote [2], this prevents conflict between internal hold current and external 5 V drivers. Bus hold remains active only for VI ≤ VCC, with specified sustaining currents (e.g., ±75 μA at VCC = 3.0 V, VI = 0.8 V or 2.0 V).

Can both 8-bit sections operate in opposite directions simultaneously?

Yes. 1DIR and 2DIR are independent; setting 1DIR = HIGH and 2DIR = LOW configures Port 1 for A→B flow and Port 2 for B→A flow concurrently. This is explicitly supported by the Function Table (Table 3) and Functional Diagram (Fig. 1), enabling full-duplex operation across the 16-bit bus.

What is the maximum capacitive load this device can drive reliably?

Test data in Table 9 specifies CL = 30 pF (for VCC ≤ 2.7 V) and CL = 50 pF (for VCC ≥ 3.0 V) under defined conditions. Dynamic characteristics (Table 7) are characterized up to these loads. Driving >50 pF may increase propagation delay and skew beyond spec-designers should verify timing with actual board capacitance using the CPD = 18.5 pF value and PD = CPD × VCC² × fi × N formula in Section 10.