Texas Instruments SN74AVC16374DGVR

Overview

SN74AVC16374DGVR from Texas Instruments is a 16-bit edge-triggered D-type flip-flop with 3-state outputs, operating across 1.2 V to 3.6 V supply range and supporting mixed-voltage data communication. It features Dynamic Output Control (DOC) for noise reduction, Ioff partial-power-down protection, and ±24 mA dynamic drive capability at 2.5 V - enabling robust bus interfacing in high-speed digital systems.

For engineers reviewing the SN74AVC16374DGVR datasheet, SN74AVC16374DGVR pinout, SN74AVC16374DGVR application, or SN74AVC16374DGVR equivalent, key selection considerations include its 48-pin TVSOP (DGV) package, 200 MHz max clock frequency at 1.8 V, 1.4 ns setup time, overvoltage-tolerant I/Os, and dual 8-bit configurable operation for buffer registers and bidirectional bus drivers.

Technical Context

This device implements two independent 8-bit edge-triggered D-type flip-flops sharing separate clock and output-enable controls. Each section latches data on the rising edge of CLK while OE independently places its eight outputs into high-impedance or active logic states without affecting internal storage.

The integrated DOC circuit dynamically modulates output impedance during transitions - delivering high initial drive strength (equivalent to ±24 mA standard outputs at 2.5 V) followed by elevated impedance to suppress switching noise. Ioff functionality ensures zero current backflow during power-down, meeting JESD 78 Class II latch-up requirements.

Key Specifications

Pinout & Package

SN74AVC16374DGVR uses a 48-pin Thin Very Small Outline Package (TVSOP, DGV), 7.1 mm × 10.2 mm footprint with 0.4 mm pitch, optimized for high-density PCB layouts and automated assembly. Pin 1 is located in Quadrant Q1 per tape-and-reel orientation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SN74LVC16374DGVR, SN74AVC16374DGVR delivers superior noise immunity and broader voltage interoperability; versus SN74AVCH16374DGVR, it trades bus-hold convenience for marginally lower quiescent current and reduced input capacitance.

Availability

SN74AVC16374DGVR is available at Aetrix Electronics and suitable for industrial PLC backplanes, FPGA I/O expansion, memory interface buffering, and test equipment signal conditioning requiring stable component supply and long-term lifecycle support.

Supply support for SN74AVC16374DGVR 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 decades of expertise in high-reliability interface and timing products.

SN74AVC16374DGVR belongs to TI's AVC (Advanced Very-Low-Voltage CMOS) logic family, engineered for low-voltage, high-speed digital interfacing in mixed-signal systems where noise control, power sequencing, and voltage translation are critical.

FAQ

What is the maximum clock frequency supported by SN74AVC16374DGVR at 1.8 V?

The SN74AVC16374DGVR supports up to 200 MHz clock frequency at 1.8 V VCC, as specified in the timing requirements table under recommended operating conditions. This performance is enabled by its EPIC™ submicron CMOS process and optimized internal path delays, making SN74AVC16374DGVR suitable for high-bandwidth data capture in low-voltage memory and FPGA interfaces.

Does SN74AVC16374DGVR support partial power-down operation?

Yes, SN74AVC16374DGVR fully supports partial-power-down operation via its Ioff circuitry. When VCC = 0 V, Ioff limits input/output leakage to ±10 µA, preventing damaging current backflow through the device. This feature is explicitly characterized and guaranteed across –40°C to 85°C, making SN74AVC16374DGVR appropriate for hot-pluggable modules and multi-rail systems.

How does the Dynamic Output Control (DOC) circuit in SN74AVC16374DGVR reduce noise?

The DOC circuit in SN74AVC16374DGVR dynamically adjusts output impedance during signal transitions: it initially lowers impedance to deliver strong drive (±24 mA equivalent), then raises impedance mid-transition to suppress ringing and overshoot. This behavior is confirmed in Figure 1 (VOL vs IOL and VOH vs IOH curves) and documented in TI literature SCEA009, distinguishing SN74AVC16374DGVR from standard-output logic devices.

What is the pin-compatible alternative to SN74AVC16374DGVR with bus-hold functionality?

SN74AVCH16374DGVR is a pin-compatible alternative to SN74AVC16374DGVR that adds bus-hold circuitry on all inputs. It shares identical DOC, Ioff, voltage range (1.2–3.6 V), and timing specifications, but eliminates the need for external pull-up/down resistors on floating inputs - a verified design option referenced in TI's ordering information and package addendum for SN74AVC16374DGVR.

What package type and dimensions does SN74AVC16374DGVR use?

SN74AVC16374DGVR uses a 48-pin Thin Very Small Outline Package (TVSOP, DGV) measuring 7.1 mm × 10.2 mm with 0.4 mm lead pitch and maximum height of 1.2 mm. Its mechanical drawing (DGV0048A) and tape-and-reel specifications (2000 units/reel, 16.4 mm reel width) are published in TI's PACKAGE MATERIALS INFORMATION document dated 24-Jul-2025.