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Home > Products > Integrated Circuits (ICs) > Logic > Flip Flops

Texas Instruments SN74LVC16374ADGVR

Name: SN74LVC16374ADGVR
Brand: Texas Instruments
SKU: SN74LVC16374ADGVR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74LVC16374ADGVR

Manufacturer:: Texas Instruments

Category:: Flip Flops

Package:: 48-TFSOP (0.173", 4.40mm Width)

Datasheet:: SN74LVC16374ADGVR.pdf

Description:: IC FF D-TYPE DUAL 8BIT 48TVSOP

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Product details

Overview

SN74LVC16374ADGVR 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 two independent 8-bit registers or one unified 16-bit latch, supports 150-MHz clock frequency, delivers ±24-mA output drive at 3.3 V, and features 5.5-V-tolerant inputs-enabling mixed-voltage interfacing in server memory buffers and industrial I/O port expansion.

For engineers reviewing the SN74LVC16374ADGVR datasheet, SN74LVC16374ADGVR pinout, SN74LVC16374ADGVR application, or SN74LVC16374ADGVR equivalent, this page delivers verified electrical specs, TVSOP-48 package mapping, functional mode truth table, I_off-enabled live insertion support, and validated alternatives for bus interface design.

Technical Context

This device implements dual 8-bit positive-edge-triggered D flip-flops with independent clock (1CLK/2CLK) and output-enable (1OE/2OE) controls. Each channel latches data on the rising edge of its dedicated clock while maintaining state during OE assertion, enabling concurrent register update and bus isolation.

Its I_off circuitry disables all outputs when V_CC = 0 V, preventing back-drive current in partial-power-down systems. Input tolerance up to 5.5 V allows direct interfacing with 5-V logic without level shifters, and output ground bounce (V_OLP) remains below 0.8 V at 3.3 V/25°C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	1.65 V to 3.6 V - Enables single-supply operation across 1.8-V, 2.5-V, and 3.3-V system domains.
Max Clock Frequency	150 MHz - Supports high-speed data capture in memory interfaces and programmable logic I/O.
Output Drive	±24 mA at V_CC = 3.3 V - Drives multiple CMOS loads or light TTL loads without external buffers.
Input Voltage Tolerance	Up to 5.5 V - Allows direct connection to 5-V microcontrollers or legacy peripherals in mixed-voltage buses.
I_off Current	±10 μA at V_I/V_O = 5.5 V - Enables safe hot-plug insertion and back-drive protection during power sequencing.
Propagation Delay (t_pd)	1.5–4.5 ns (V_CC = 3.3 V) - Ensures timing margin in sub-5-ns critical paths for FPGA-to-ASIC bridging.
Power Dissipation Capacitance	58 pF per flip-flop at 3.3 V - Predicts dynamic power consumption for thermal modeling in dense PCB layouts.

Pinout & Package

SN74LVC16374ADGVR uses a 48-pin Thin Very Small Outline Package (TVSOP) with 9.70 mm × 4.40 mm body size, 0.4-mm lead pitch, and exposed pad-free construction. Pin 1 is located in Quadrant Q1 per tape-and-reel orientation.

Pin/Terminal	Circuit Role	Design Meaning
1, 24	1OE, 2OE	Active-low output enable for Channel 1 and Channel 2 - Controls high-impedance state independently per 8-bit group.
48, 25	1CLK, 2CLK	Positive-edge clock inputs - Synchronize data capture for respective 8-bit sections without shared clock skew.
47–37, 36–26	1D1–1D8, 2D1–2D8	Data inputs - Accept 5.5-V-tolerant signals; latch on next rising CLK edge when OE is low.
2–12, 13–23	1Q1–1Q8, 2Q1–2Q8	3-state outputs - Drive bus lines actively or enter high-Z mode to prevent contention during multiplexed access.
4, 10, 15, 21, 28, 34, 39, 45	GND	Eight ground connections - Reduce ground bounce and improve noise immunity in high-speed switching.
7, 18, 31, 42	V_CC	Four power supply pins - Distribute current and minimize IR drop across the die for stable 150-MHz operation.

Key Features

Feature	Design Value
Wide V_CC range (1.65–3.6 V)	Supports interoperability across 1.8-V microcontrollers, 2.5-V FPGAs, and 3.3-V memory subsystems without voltage translation.
5.5-V-tolerant inputs	Eliminates need for external level shifters when interfacing with 5-V sensors, legacy controllers, or industrial I/O modules.
I_off protection	Prevents destructive current flow during hot-swap events or asymmetric power-up sequences in modular backplanes.
Low ground bounce (V_OLP < 0.8 V)	Maintains signal integrity in multi-load bus environments by minimizing simultaneous switching noise on shared GND planes.
High drive strength (±24 mA)	Drives up to 10 standard CMOS loads or 2 LVTTL loads directly, reducing component count in I/O expander designs.

Applications

Server Memory Buffering	Industrial I/O Expansion
Use Scenario: Buffering address/data lines between CPU and DDR4 memory modules in rack-mounted servers. IC Role / Device Role / Timing Role: Acts as a 16-bit registered transceiver, isolating memory controller timing from DRAM latency variations. Use Value: 150-MHz clock capability and ±24-mA drive ensure clean signal edges across 10+ inch PCB traces, reducing bit-error rates in high-throughput memory channels.	Use Scenario: Expanding digital input/output capacity for PLC mainboards handling sensor arrays and actuator control. IC Role / Device Role / Timing Role: Functions as dual 8-bit latched I/O port with independent OE control for isolated peripheral read/write cycles. Use Value: I_off support enables safe field-replacement of I/O modules without powering down the entire control system.
Network Switch Fabric Interface	PCB-Level Bus Isolation
Use Scenario: Interfacing FPGA-based packet forwarding engines with external PHY devices in 10-GbE switch line cards. IC Role / Device Role / Timing Role: Provides synchronized data staging between asynchronous clock domains using separate 1CLK/2CLK inputs. Use Value: 5.5-V-tolerant inputs accept status signals from legacy 5-V PHYs, while 3.3-V outputs match FPGA I/O voltage standards.	Use Scenario: Isolating debug JTAG/SWD signals from noisy power management ICs on high-density embedded boards. IC Role / Device Role / Timing Role: Operates as a 16-bit 3-state buffer with fast enable/disable (t_en/t_dis ≤ 5.5 ns) to gate test access during normal operation. Use Value: Low propagation delay (1.5 ns min) preserves setup/hold timing margins for boundary-scan clocks running above 100 MHz.

Server Memory Buffering

Industrial I/O Expansion

Use Scenario: Buffering address/data lines between CPU and DDR4 memory modules in rack-mounted servers.

IC Role / Device Role / Timing Role: Acts as a 16-bit registered transceiver, isolating memory controller timing from DRAM latency variations.

Use Value: 150-MHz clock capability and ±24-mA drive ensure clean signal edges across 10+ inch PCB traces, reducing bit-error rates in high-throughput memory channels.

Use Scenario: Expanding digital input/output capacity for PLC mainboards handling sensor arrays and actuator control.

IC Role / Device Role / Timing Role: Functions as dual 8-bit latched I/O port with independent OE control for isolated peripheral read/write cycles.

Use Value: I_off support enables safe field-replacement of I/O modules without powering down the entire control system.

Network Switch Fabric Interface

PCB-Level Bus Isolation

Use Scenario: Interfacing FPGA-based packet forwarding engines with external PHY devices in 10-GbE switch line cards.

IC Role / Device Role / Timing Role: Provides synchronized data staging between asynchronous clock domains using separate 1CLK/2CLK inputs.

Use Value: 5.5-V-tolerant inputs accept status signals from legacy 5-V PHYs, while 3.3-V outputs match FPGA I/O voltage standards.

Use Scenario: Isolating debug JTAG/SWD signals from noisy power management ICs on high-density embedded boards.

IC Role / Device Role / Timing Role: Operates as a 16-bit 3-state buffer with fast enable/disable (t_en/t_dis ≤ 5.5 ns) to gate test access during normal operation.

Use Value: Low propagation delay (1.5 ns min) preserves setup/hold timing margins for boundary-scan clocks running above 100 MHz.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
SN74LVC16373ADGVR	Octal transparent latch (no clock edge trigger); identical V_CC, drive, and package.	Suitable for level-sensitive data capture (e.g., address latching), not edge-triggered register storage.	Select when synchronous clocked storage is unnecessary and latch-enable timing aligns with system control signals.
74ALVC16374PW	Higher speed (200 MHz max), lower ICC (20 μA), same pinout but TSSOP-48 (DGG) package.	Better suited for ultra-low-power portable instrumentation where 150-MHz margin is excessive.	Choose when board space permits TSSOP-48 and extended battery life outweighs minor cost increase over TVSOP.

Compared with SN74LVC16374ADGVR, SN74LVC16373ADGVR trades edge-triggered register behavior for transparent latching-ideal for address strobes-while 74ALVC16374PW offers higher speed and lower static current in a physically larger TSSOP package, requiring layout revision but enabling tighter timing closure.

Availability

SN74LVC16374ADGVR is available at Aetrix Electronics and suitable for server memory buffering, industrial I/O expansion, network switch fabric interface, and PCB-level bus isolation requiring stable component supply across automotive-grade temperature ranges (–40°C to +125°C).

Supply support for SN74LVC16374ADGVR 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 ICs for industrial and computing infrastructure.

The SN74LVC16374A belongs to TI's Widebus™ family of advanced CMOS logic devices, engineered specifically for high-speed, low-voltage bus interface applications in servers, networking equipment, and programmable logic systems.

FAQ

What is the maximum clock frequency supported by SN74LVC16374ADGVR?

The SN74LVC16374ADGVR supports a maximum clock frequency of 150 MHz across its full operating voltage range (1.65 V to 3.6 V). This specification is guaranteed under recommended conditions, including V_CC = 3.3 V ± 0.3 V and T_A = –40°C to +125°C. The device achieves this performance with typical propagation delay (t_pd) as low as 1.5 ns, making SN74LVC16374ADGVR suitable for high-speed memory buffering and FPGA interface applications.

Does SN74LVC16374ADGVR support 5-V input signals?

Yes, SN74LVC16374ADGVR supports input voltages up to 5.5 V regardless of V_CC level, enabling direct interfacing with 5-V logic families without external level shifters. This 5.5-V tolerance applies to all data (D), clock (CLK), and output-enable (OE) inputs. The feature is explicitly validated in the datasheet's "Recommended Operating Conditions" and "Electrical Characteristics" tables, confirming robust mixed-voltage operation for SN74LVC16374ADGVR in heterogeneous system designs.

How does the I_off feature function in SN74LVC16374ADGVR?

The I_off circuitry in SN74LVC16374ADGVR disables all outputs when V_CC = 0 V, limiting leakage current to ±10 μA even with 5.5-V signals applied to inputs or outputs. This prevents damaging back-drive current during live insertion, partial power-down, or hot-swap events. The functionality is intrinsic to the silicon design and requires no external components-making SN74LVC16374ADGVR ideal for modular backplane and field-replaceable unit applications.

What package type is used for SN74LVC16374ADGVR?

SN74LVC16374ADGVR uses a 48-pin Thin Very Small Outline Package (TVSOP) with body dimensions of 9.70 mm × 4.40 mm and 0.4-mm lead pitch. This compact, surface-mount package is optimized for high-density PCB layouts and is RoHS-compliant with NIPDAU lead finish and MSL Level-1 rating (260°C peak reflow). The TVSOP footprint differs from TSSOP (DGG) and SSOP (DL) variants, so layout verification is required when substituting SN74LVC16374ADGVR into existing designs.

Can SN74LVC16374ADGVR be used as two independent 8-bit registers?

Yes, SN74LVC16374ADGVR is internally structured as two independent 8-bit edge-triggered D-type flip-flops, each with dedicated clock (1CLK/2CLK) and output-enable (1OE/2OE) inputs. This architecture allows asynchronous operation-e.g., latching data on Channel 1 while holding Channel 2 outputs in high-Z-enabling flexible bus arbitration and multi-port register file implementations. The functional block diagram and pin configuration in the official datasheet confirm this dual-channel capability for SN74LVC16374ADGVR.

SN74LVC16374ADGVR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74LVC

Package/Case:: 48-TFSOP (0.173", 4.40mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: Standard

Type:: D-Type

Output Type:: Tri-State, Non-Inverted

Number of Elements:: 2

Number of Bits per Element:: 8

Clock Frequency:: 150 MHz

Max Propagation Delay @ V, Max CL:: 4.5ns @ 3.3V, 50pF

Trigger Type:: Positive Edge

Current - Output High, Low:: 24mA, 24mA

Voltage - Supply:: 1.65V ~ 3.6V

Current - Quiescent (Iq):: 20 µA

Input Capacitance:: 5 pF

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 48-TVSOP

SN74LVC16374ADGVR FAQ

1.How can I place an order for SN74LVC16374ADGVR through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74LVC16374ADGVR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SN74LVC16374ADGVR reliable?

The price and inventory of SN74LVC16374ADGVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC16374ADGVR is usually 5 days.

3.What payment methods are accepted for SN74LVC16374ADGVR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC16374ADGVR transactions.

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4.How is shipping managed for SN74LVC16374ADGVR?

SN74LVC16374ADGVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN74LVC16374ADGVR order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SN74LVC16374ADGVR?

For technical support, including SN74LVC16374ADGVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC16374ADGVR requirements.

6.How does Aetrix verify that SN74LVC16374ADGVR is sourced from the original manufacturer or authorized distributors?

All SN74LVC16374ADGVR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SN74LVC16374ADGVR meets industry standards.

7.What is the process for return or replacement of SN74LVC16374ADGVR?

All SN74LVC16374ADGVR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC16374ADGVR, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SN74LVC16374ADGVR part is unused and in its original packaging.

Return procedure for SN74LVC16374ADGVR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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