Texas Instruments SN74LVTH162374DLR

Overview

SN74LVTH162374DLR from Texas Instruments is a 3.3-V ABT 16-bit edge-triggered D-type flip-flop with 3-state outputs in SSOP-48 package, featuring 12 mA output drive, bus-hold on all data inputs, and mixed-mode 5-V/3.3-V I/O compatibility - used in high-speed bidirectional bus buffering and I/O port expansion for industrial control backplanes.

For engineers reviewing the SN74LVTH162374DLR datasheet, SN74LVTH162374DLR pinout, SN74LVTH162374DLR application, or SN74LVTH162374DLR equivalent, key selection factors include its 160 MHz max clock frequency, 2.7–3.6 V supply range, 22-Ωintegrated series output resistors, hot-insertion support via Ioff and power-up 3-state, and dual 8-bit or unified 16-bit register configuration.

Technical Context

The SN74LVTH162374DLR 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 input thresholds while operating at 3.3 V VCC.

Each output incorporates 22-Ωseries resistance to suppress overshoot/undershoot, and bus-hold circuitry eliminates external pullup/pulldown resistors on all 16 data inputs. The device supports hot insertion via Ioff (≤±100 µA at VCC = 0) and power-up 3-state behavior, ensuring outputs remain high-impedance during power ramping.

Key Specifications

Pinout & Package

SN74LVTH162374DLR uses a 48-pin SSOP (Shrink Small Outline Package) with 0.5 mm pitch, 12.4 mm × 6.2 mm body, and 1.2 mm max height - optimized for high-density PCB layouts with flow-through signal routing.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 16-bit edge-triggered D-type flip-flop applications.

Compared with SN74LVTH162374DLR, SN74LVC16374DGGR offers higher output current but sacrifices 5-V input tolerance and bus-hold - requiring redesign of input biasing and level-shifting. The 74ALVCH162374TTR delivers greater clock rate but increases BOM complexity and layout effort due to missing integrated features.

Availability

SN74LVTH162374DLR is available at Aetrix Electronics and suitable for industrial backplane I/O expansion, automotive body control module buffering, and medical imaging data acquisition requiring stable component supply and long-term production continuity.

Supply support for SN74LVTH162374DLR 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 logic solutions, with over 50 years of innovation in high-reliability interface and timing products.

The SN74LVTH162374DLR belongs to TI's Widebus™ family of advanced bus-interface devices, designed specifically for robust, high-speed parallel data transfer in mixed-voltage industrial and automotive systems.

FAQ

What is the maximum clock frequency supported by the SN74LVTH162374DLR?

The SN74LVTH162374DLR supports a maximum clock frequency of 160 MHz under recommended operating conditions (VCC = 3.3 V, TA = 25°C). This value is guaranteed across the full commercial temperature range (–40°C to 85°C) and applies to both 8-bit banks independently. Timing parameters including setup (tsu = 2.8 ns min) and hold (th = 1.2 ns min) times are specified to ensure reliable operation at this rate.

Does the SN74LVTH162374DLR support 5-V input signals while operating at 3.3-V VCC?

Yes, the SN74LVTH162374DLR supports 5-V tolerant inputs with 3.3-V VCC. Its VIH threshold is 2.0 V and it accepts input voltages up to 5.5 V, enabling direct connection to legacy 5-V TTL logic without level shifters. This mixed-mode capability is explicitly validated in the datasheet's Recommended Operating Conditions table and Electrical Characteristics section.

How does the bus-hold feature work on the SN74LVTH162374DLR data inputs?

The SN74LVTH162374DLR integrates active bus-hold circuitry on all 16 data inputs (1D1–1D8, 2D1–2D8), maintaining a valid logic state (±75 µA holding current) when inputs are floating or undriven. This eliminates the need for external pullup or pulldown resistors, reduces PCB component count, and prevents metastability in unterminated bus environments.

Can the SN74LVTH162374DLR be used in hot-swap applications?

Yes, the SN74LVTH162374DLR is explicitly designed for hot-insertion use cases. It features Ioff protection (≤±100 µA at VCC = 0) to prevent damaging current backflow during power-down, and power-up 3-state circuitry that forces outputs into high-impedance until VCC exceeds 1.5 V - both confirmed in the Functional Description and Absolute Maximum Ratings sections of the datasheet.

What package type and dimensions does the SN74LVTH162374DLR use?

The SN74LVTH162374DLR uses an SSOP-48 (DL) package: 12.4 mm × 6.2 mm body size, 1.2 mm maximum height, 0.5 mm lead pitch, and gull-wing leads. Mechanical drawings confirm compliance with JEDEC MO-153, and tape-and-reel packaging (1000 units per reel) follows standard orientation with Pin 1 in Quadrant Q1.