Texas Instruments 74LVTH162374DGGRG4

Overview

74LVTH162374DGGRG4 from Texas Instruments is a 3.3-V ABT 16-bit edge-triggered D-type flip-flop with 3-state outputs, designed for high-speed bus interface and data latching in mixed-voltage systems. It features dual 8-bit sections, 22-Ω integrated output series resistors, bus-hold on all data inputs, and supports 5-V tolerant I/O with 3.3-V VCC - used in industrial I/O port expansion and bidirectional bus driving.

For engineers reviewing the 74LVTH162374DGGRG4 datasheet, 74LVTH162374DGGRG4 pinout, 74LVTH162374DGGRG4 application, or 74LVTH162374DGGRG4 equivalent, key selection criteria include its 160 MHz max clock frequency, ±12 mA output drive, hot-insertion support via Ioff and power-up 3-state, 2.7–3.6 V supply range, and TSSOP-48 package compatibility with standard PCB assembly processes.

Technical Context

The 74LVTH162374DGGRG4 implements two independent 8-bit positive-edge-triggered D-type flip-flop banks, each with dedicated clock (1CLK/2CLK) and output-enable (1OE/2OE) controls. Its ABT (Advanced BiCMOS Technology) architecture enables TTL-level signal translation while operating from a 3.3-V supply.

Each output includes built-in 22-Ω series termination to suppress ringing, and all data inputs feature active bus-hold circuitry eliminating external pullup/pulldown resistors. The device enters high-impedance state during power-up/down when VCC is below 1.5 V, and supports hot insertion via Ioff and power-up 3-state logic.

Key Specifications

Pinout & Package

TSSOP-48 package (DGG), 12.6 mm × 6.1 mm × 1.2 mm max height, lead-free NiPdAu finish, MSL Level-1, RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit latch/register applications.

Compared with SN74LVC16374DGGR and SN74ALVCH162374DGGR, the 74LVTH162374DGGRG4 uniquely combines 5-V input tolerance, integrated termination, and bus-hold - reducing component count and improving robustness in industrial backplane and hot-swap environments without sacrificing timing performance.

Availability

74LVTH162374DGGRG4 is available at Aetrix Electronics and suitable for industrial I/O expansion, memory interface buffering, bidirectional bus driving, and hot-swappable module interface applications requiring stable component supply and long-term production continuity.

Supply support for 74LVTH162374DGGRG4 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

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with over 90 years of innovation in high-reliability electronic components.

The 74LVTH162374DGGRG4 belongs to TI's Widebus™ family of advanced bus-interface devices, engineered specifically for noise-immune, mixed-voltage data transfer in industrial automation, communications infrastructure, and test equipment.

FAQ

What is the maximum clock frequency supported by the 74LVTH162374DGGRG4?

The 74LVTH162374DGGRG4 supports a maximum clock frequency of 160 MHz under recommended operating conditions (VCC = 3.3 V, TA = 25°C). This specification is validated across the full commercial temperature range (–40°C to 85°C) and ensures reliable setup/hold timing margins for high-speed parallel data capture in applications such as memory interfacing and I/O expansion.

Does the 74LVTH162374DGGRG4 support 5-V input signals while operating at 3.3-V VCC?

Yes, the 74LVTH162374DGGRG4 supports input voltages up to 5.5 V while powered from a 3.3-V supply, enabling direct interfacing with legacy 5-V logic families without external level shifters. This 5-V tolerance applies to all data (D) and control (CLK, OE) inputs, and is specified in the Absolute Maximum Ratings and Electrical Characteristics tables of the official TI datasheet SCBS262M.

How does the bus-hold feature function on the 74LVTH162374DGGRG4 data inputs?

The 74LVTH162374DGGRG4 incorporates active bus-hold circuitry on all 16 data inputs (1D1–1D8, 2D1–2D8), maintaining the last valid logic state when inputs are floating or weakly driven. This eliminates the need for external pullup or pulldown resistors, reducing BOM cost and PCB space while improving noise immunity in industrial environments with long trace runs or unterminated stubs.

Is the 74LVTH162374DGGRG4 suitable for hot-insertion applications?

Yes, the 74LVTH162374DGGRG4 is explicitly designed for hot-insertion use cases via two key features: Ioff circuitry disables outputs when VCC = 0 V to prevent back-current flow, and power-up 3-state forces outputs into high-impedance mode during power ramp-up/down. These capabilities are verified per JEDEC standards and documented in TI's application report on hot-swap compliance for ABT logic devices.

What package type and dimensions does the 74LVTH162374DGGRG4 use?

The 74LVTH162374DGGRG4 uses a TSSOP-48 (DGG) package measuring 12.6 mm × 6.1 mm × 1.2 mm maximum height, with 0.5-mm lead pitch and NiPdAu lead finish. It complies with JEDEC MO-153, has MSL Level-1 rating, and is RoHS compliant. Detailed mechanical drawings, land patterns, and stencil recommendations are published in TI's DGG0048A package documentation.