Nexperia USA Inc. 74LVC16245ADGG,512

Overview

74LVC16245ADGG,512 from Nexperia is a 16-bit 3-state bus transceiver with dual direction control (1DIR/2DIR) and dual output enables (1OE/2OE), operating from 1.2 V to 3.6 V supply while tolerating 5.5 V inputs. It supports bidirectional data flow across two independent 8-bit ports or as a unified 16-bit interface, enabling level translation between 3.3 V and 5 V systems in industrial control backplanes and FPGA I/O expansion.

For engineers reviewing the 74LVC16245ADGG,512 datasheet, 74LVC16245ADGG,512 pinout, 74LVC16245ADGG,512 application, or 74LVC16245ADGG,512 equivalent, key selection criteria include its 5.5 V-tolerant inputs, IOFF partial power-down protection, Schmitt-trigger input noise immunity, and TSSOP48 package compatibility with high-density PCB layouts.

Technical Context

This device implements a CMOS-based dual-8-bit transceiver architecture with independent send/receive direction control per port and active-low 3-state enable logic. Each port features eight bidirectional I/Os with bus-hold functionality absent in the LVC variant (present only in LVCH version), and all inputs incorporate Schmitt-trigger thresholds for robust operation with slow-rising signals.

The IOFF circuit ensures outputs enter high-impedance state during power-down, blocking backflow current when VCC = 0 V. Input voltage tolerance up to 5.5 V-exceeding VCC-enables direct interfacing with legacy 5 V logic without external level shifters, while propagation delays as low as 1.0 ns at 3.3 V support high-speed data transfer in synchronous bus architectures.

Key Specifications

Pinout & Package

TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm lead pitch, exposed pad not present.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 74LVCH16245ADGG, the base 74LVC16245ADGG lacks bus-hold but offers identical speed, voltage tolerance, and packaging-making it preferable where I/O states are actively driven. Against SN74LVC16245ADGGR, it delivers tighter propagation delay consistency across temperature and lower IOFF leakage, favoring high-reliability industrial use.

Availability

74LVC16245ADGG,512 is available at Aetrix Electronics and suitable for industrial PLC backplane interfaces, FPGA I/O expansion bridges, and automotive body control modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for 74LVC16245ADGG,512 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 delivering high-performance logic, discrete, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial, automotive, and consumer applications.

The 74LVC logic family targets low-voltage, high-speed digital interfacing with emphasis on power efficiency, noise immunity, and mixed-voltage system integration-designed specifically for modern embedded controllers and programmable logic interconnects.

FAQ

Is 74LVC16245ADGG,512 pin-compatible with 74LVCH16245ADGG?

Yes-both devices share identical TSSOP48 pinout, supply voltage range, timing parameters, and logic functionality. The only difference is the presence of bus-hold circuitry on data inputs in the LVCH variant; control inputs (DIR/OE) lack bus-hold in both versions. No PCB redesign is needed when substituting between them.

What is the maximum data rate supported by this transceiver?

While not specified as a serial data rate, the device supports parallel bus operation up to ~250 MHz based on its 1.0 ns minimum propagation delay and 4.5 ns maximum at 3.3 V. Real-world throughput depends on load capacitance, trace length, and system timing margins-but it reliably handles 100 MHz synchronous bus protocols with setup/hold compliance.

Can this part be used in a 2.5 V-only system without 5 V signals present?

Yes-74LVC16245ADGG,512 operates fully within 1.2 V to 3.6 V supply range and meets all AC/DC specifications at 2.5 V. Its 5.5 V input tolerance remains inactive but harmless in pure 2.5 V environments; no configuration or external components are required for safe 2.5 V-only operation.

Does the IOFF feature require external circuitry to activate?

No-IOFF is intrinsic and automatic: when VCC drops to 0 V, internal circuitry forces all outputs into high-impedance state regardless of OE/DIR pin states. This behavior requires no external biasing, pull-ups, or control signals-it activates solely based on VCC rail collapse, ensuring fail-safe isolation during power loss.