Texas Instruments SN74LVC16374AZQLR

Overview

SN74LVC16374AZQLR from Texas Instruments is a 16-bit edge-triggered D-type flip-flop with 3-state outputs, designed for 1.65-V to 3.6-V V_CC operation. It functions as dual 8-bit or single 16-bit register with independent clock and output-enable controls per bank, delivers ±24 mA output drive at 3.3 V, supports 5.5-V-tolerant inputs, and operates up to 150 MHz - used in server I/O buffering and bidirectional bus interfacing.

For engineers reviewing the SN74LVC16374AZQLR datasheet, SN74LVC16374AZQLR pinout, SN74LVC16374AZQLR application, or SN74LVC16374AZQLR equivalent, this page provides verified package mapping (ZQL 56-ball BGA), confirmed timing parameters (t_pd = 4.5 ns max at 3.3 V), I_off-enabled live insertion support, and mixed-voltage translation capability in 3.3-V/5-V systems.

Technical Context

This device implements two independent 8-bit D-type flip-flop banks, each with dedicated clock (1CLK/2CLK) and output-enable (1OE/2OE) inputs. Data propagation occurs on the positive edge of CLK; OE controls high-impedance state without affecting internal latch operation. Internal circuitry supports I_off for partial-power-down protection and withstands 5.5-V input voltages regardless of V_CC.

It features balanced CMOS output drive, low ground bounce (V_OLP < 0.8 V at 3.3 V), and overshoot control (V_OHV > 2 V), enabling clean signal integrity in high-speed bus applications. Thermal resistance (R_θJA) is 64.3°C/W in DGG package, and power dissipation capacitance is 58 pF per flip-flop at 3.3 V and 10 MHz.

Key Specifications

Pinout & Package

ZQL package is a 56-ball fine-pitch BGA (7.0 mm × 4.5 mm, 0.5-mm pitch) with exposed thermal pad. Pin assignments follow JEDEC MO-220 standard; ball A1 = 1OE, ball K6 = 2CLK. No internal connections (NC) exist at balls A2–A5, B1, J2–J5, and K2–K5.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC16374AZQLR, SN74LVC16373AZQLR trades edge-triggered registration for transparent latching - limiting use in clock-domain crossing - while SN74AVC16835DGGR improves speed and voltage scalability but removes 5-V compatibility essential for legacy interface bridging.

Availability

SN74LVC16374AZQLR is available at Aetrix Electronics and suitable for server memory buffering, industrial PLC I/O expansion, network switch fabric register, and automotive ADAS camera interface requiring stable component supply across extended temperature and mixed-voltage environments.

Supply support for SN74LVC16374AZQLR 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 90 years of innovation in industrial, automotive, and communications markets.

The SN74LVC16374AZQLR belongs to TI's Widebus™ family of high-speed, low-voltage logic devices engineered for robust bus interface, data registration, and voltage translation in mixed-supply systems.

FAQ

What is the maximum operating temperature for SN74LVC16374AZQLR?

The SN74LVC16374AZQLR is rated for operation from –40°C to +125°C ambient temperature, validated per JEDEC JESD78 and supported by thermal metrics including R_θJA = 64.3°C/W in the ZQL package. This rating applies across the full 1.65–3.6-V V_CC range and enables deployment in under-hood automotive and industrial control environments where the SN74LVC16374AZQLR must maintain timing integrity and I_off functionality at elevated temperatures.

Does SN74LVC16374AZQLR support hot-swap or live-insertion applications?

Yes, the SN74LVC16374AZQLR supports live insertion via its I_off feature, which disables output drivers and blocks current backflow when V_CC = 0 V. This behavior is specified in the datasheet and tested per JESD78, allowing safe insertion into powered backplanes or modular systems without damaging the SN74LVC16374AZQLR or upstream components - provided OE is held high during power-up.

Can SN74LVC16374AZQLR interface directly with 5-V logic devices?

Yes, the SN74LVC16374AZQLR accepts input voltages up to 5.5 V regardless of V_CC level (1.65–3.6 V), enabling direct connection to 5-V microcontrollers, sensors, or legacy peripherals. Its outputs swing rail-to-rail within the V_CC range, so level translation occurs inherently on input - making the SN74LVC16374AZQLR ideal for bridging 5-V and 3.3-V domains without external translators.

What is the recommended bypass capacitor configuration for SN74LVC16374AZQLR?

Texas Instruments recommends placing a 0.1-μF ceramic capacitor near each V_CC ball of the SN74LVC16374AZQLR, with additional 1-μF bulk capacitance nearby. For the ZQL package's eight V_CC balls, individual 0.1-μF caps should be routed with minimal trace length to minimize inductance. This configuration suppresses high-frequency noise and maintains stable V_CC during fast output transitions - critical for achieving the SN74LVC16374AZQLR's specified 150-MHz performance and low ground bounce.

How does the dual-bank architecture of SN74LVC16374AZQLR improve system design flexibility?

The SN74LVC16374AZQLR integrates two independent 8-bit flip-flop banks (Bank 1: 1D1–1D8/1Q1–1Q8; Bank 2: 2D1–2D8/2Q1–2Q8), each with dedicated clock (1CLK/2CLK) and output-enable (1OE/2OE) pins. This allows asynchronous sampling of two data streams, staggered timing alignment, or separate control of I/O directions - enhancing flexibility in memory controllers, multi-lane serializers, and programmable logic interfaces where the SN74LVC16374AZQLR replaces two discrete octal registers.