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

Texas Instruments SN74LVC16374ADLR

Name: SN74LVC16374ADLR
Brand: Texas Instruments
SKU: SN74LVC16374ADLR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74LVC16374ADLR

Manufacturer:: Texas Instruments

Category:: Flip Flops

Package:: 48-BSSOP (0.295", 7.50mm Width)

Datasheet:: SN74LVC16374ADLR.pdf

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

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Product details

Overview

SN74LVC16374ADLR 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 features dual 8-bit sections (1CLK/1OE and 2CLK/2OE), ±24 mA output drive at 3.3 V, 150 MHz maximum clock frequency, and 5.5-V tolerant inputs-enabling level translation in mixed-voltage systems. It serves as a high-drive bus interface register in server memory buffers and industrial I/O port expansion.

For engineers reviewing the SN74LVC16374ADLR datasheet, SN74LVC16374ADLR pinout, SN74LVC16374ADLR application, or SN74LVC16374ADLR equivalent, key selection criteria include its dual-output-enable architecture, I_off support for live insertion, 3-state timing (t_en = 1.5–5.3 ns, t_dis = 1.5–6.1 ns), and SSOP-48 package compatibility with space-constrained PCB layouts.

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) controls. Data latching occurs on the positive edge of CLK, while OE asserts high-impedance independently per bank without affecting internal state retention.

Its I_off circuitry disables outputs when V_CC = 0 V, preventing back-drive current during partial power-down. Input tolerance up to 5.5 V allows interfacing with 5-V logic while operating at 1.65–3.6 V, and ground bounce (V_OLP < 0.8 V) and undershoot (V_OHV > 2 V) are characterized 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 rails
Max Clock Frequency	150 MHz - Supports high-speed data capture in memory interfaces and bus controllers
I_OH/I_OL Drive	±24 mA at V_CC = 3 V - Drives multiple CMOS loads or light capacitive buses without external buffers
Input Voltage Tolerance	Up to 5.5 V - Allows direct connection to 5-V microcontrollers or legacy peripherals in mixed-voltage designs
t_pd (CLK to Q)	1.5–4.5 ns at V_CC = 3.3 V - Ensures tight timing margins in synchronous data paths
I_off	±10 μA at V_CC = 0 V - Enables hot-plug capability and safe partial-power-down in modular systems
ESD Rating	2000-V HBM, 1000-V CDM - Meets industrial-grade robustness requirements without external protection

Pinout & Package

SN74LVC16374ADLR uses a 48-pin SSOP (DL) package measuring 15.80 mm × 7.50 mm, with 0.635-mm lead pitch and RoHS-compliant NiPdAu finish. The package supports standard reflow profiles (MSL Level-1, 260°C peak).

Pin/Terminal	Circuit Role	Design Meaning
1, 24	1OE, 2OE	Active-low output enables for Bank 1 and Bank 2 - Independently place 8 outputs per bank into high-Z
48, 25	1CLK, 2CLK	Positive-edge clock inputs - Synchronize data capture for respective 8-bit banks
2–12, 13–23	1Q1–1Q8, 2Q1–2Q8	True-level registered outputs - Deliver latched data with rail-to-rail swing and 24-mA drive
37–47, 26–36	1D1–1D8, 2D1–2D8	Data inputs - Accept 5.5-V-tolerant signals; latch on next rising CLK edge
4, 10, 15, 21, 28, 34, 39, 42, 45	GND / V_CC	Distributed power/ground pins - Reduce switching noise and improve signal integrity across 16-bit bus

Key Features

Feature	Design Value
Dual independent 8-bit banks	Enables flexible partitioning - e.g., one bank for address latching, another for data buffering - without inter-bank timing coupling
5.5-V tolerant inputs	Eliminates level-shifters when interfacing 5-V microcontrollers or FPGAs to 3.3-V system buses
I_off partial-power-down	Prevents destructive current flow during hot-swap events or standby mode in modular backplanes
Low ground bounce (V_OLP < 0.8 V)	Maintains signal integrity in dense PCB layouts by minimizing simultaneous switching noise on shared GND planes
3.3-V compatible 3-state timing	t_en ≤ 5.3 ns and t_dis ≤ 6.1 ns ensure glitch-free bus arbitration in multi-master systems

Applications

Server Memory Buffering	Industrial I/O Port Expansion
Use Scenario: Latching address/data between CPU and DDR memory modules in enterprise servers. IC Role / Device Role / Timing Role: Acts as a registered buffer for memory command/address lines, synchronizing signals to the memory controller clock domain. Use Value: 150 MHz operation and ±24 mA drive support high-bandwidth memory transactions without timing closure violations.	Use Scenario: Expanding GPIO count on PLC mainboards using isolated 3.3-V logic rails. IC Role / Device Role / Timing Role: Provides 16-bit parallel I/O with independent bank control, enabling staggered read/write cycles across sensor and actuator banks. Use Value: Dual OE pins allow dynamic isolation of I/O groups, reducing EMI during concurrent analog/digital operations.
Network Switch Control Plane	Automotive Infotainment Display Interface
Use Scenario: Interfacing packet processor ASICs to management EEPROMs and configuration registers. IC Role / Device Role / Timing Role: Buffers control signals (e.g., chip select, write enable) with precise setup/hold timing relative to ASIC clocks. Use Value: 1.9 ns t_su and 1.9 ns t_h at 2.7 V meet tight timing budgets in multi-gigabit switch fabrics.	Use Scenario: Driving parallel RGB display data lines from an MCU with limited drive strength. IC Role / Device Role / Timing Role: Translates 5-V display controller outputs to 3.3-V LCD panel inputs while latching pixel data on rising clock edges. Use Value: 5.5-V input tolerance eliminates external translators; 3-state outputs prevent bus contention during display mode switching.

Server Memory Buffering

Industrial I/O Port Expansion

Use Scenario: Latching address/data between CPU and DDR memory modules in enterprise servers.

IC Role / Device Role / Timing Role: Acts as a registered buffer for memory command/address lines, synchronizing signals to the memory controller clock domain.

Use Value: 150 MHz operation and ±24 mA drive support high-bandwidth memory transactions without timing closure violations.

Use Scenario: Expanding GPIO count on PLC mainboards using isolated 3.3-V logic rails.

IC Role / Device Role / Timing Role: Provides 16-bit parallel I/O with independent bank control, enabling staggered read/write cycles across sensor and actuator banks.

Use Value: Dual OE pins allow dynamic isolation of I/O groups, reducing EMI during concurrent analog/digital operations.

Network Switch Control Plane

Automotive Infotainment Display Interface

Use Scenario: Interfacing packet processor ASICs to management EEPROMs and configuration registers.

IC Role / Device Role / Timing Role: Buffers control signals (e.g., chip select, write enable) with precise setup/hold timing relative to ASIC clocks.

Use Value: 1.9 ns t_su and 1.9 ns t_h at 2.7 V meet tight timing budgets in multi-gigabit switch fabrics.

Use Scenario: Driving parallel RGB display data lines from an MCU with limited drive strength.

IC Role / Device Role / Timing Role: Translates 5-V display controller outputs to 3.3-V LCD panel inputs while latching pixel data on rising clock edges.

Use Value: 5.5-V input tolerance eliminates external translators; 3-state outputs prevent bus contention during display mode switching.

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
SN74LVC16374ADGVR	TVSOP-48 package (9.70 mm × 4.40 mm); identical electrical specs and pinout	Preferred for ultra-dense PCBs where height and footprint are constrained	Select when board area is critical and thermal dissipation is managed via layout
SN74LVC16374ADGGR	TSSOP-48 package (12.50 mm × 6.10 mm); same functionality, slightly larger than TVSOP but smaller than SSOP	Better manufacturability in mid-volume SMT lines due to wider lead pitch (0.65 mm vs. 0.5 mm)	Choose for balanced trade-off between density, solder joint reliability, and assembly yield

Compared with SN74LVC16374ADLR, the DGVR offers 35% smaller footprint for space-limited automotive clusters, while DGGR provides 12% larger pad spacing than DL-reducing bridging risk in standard reflow processes without sacrificing speed or voltage flexibility.

Availability

SN74LVC16374ADLR is available at Aetrix Electronics and suitable for server memory buffering, industrial I/O expansion, network switch control planes, and automotive infotainment display interfaces requiring stable component supply across extended temperature ranges (–40°C to 125°C).

Supply support for SN74LVC16374ADLR 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 power management and signal chain technologies.

The SN74LVC16374ADLR belongs to TI's Widebus™ family of high-speed, low-voltage logic devices engineered for robust bus interface applications in computing, communications, and industrial automation systems.

FAQ

What is the maximum clock frequency supported by the SN74LVC16374ADLR?

The SN74LVC16374ADLR supports a maximum clock frequency of 150 MHz across its full operating voltage range (1.65 V to 3.6 V). This value is guaranteed under recommended conditions, with timing parameters like t_pd and t_w validated down to 3.3 ns pulse width at 3.3 V. Performance remains consistent from –40°C to 125°C ambient.

Does the SN74LVC16374ADLR support 5-V input signals while operating at 3.3 V?

Yes, the SN74LVC16374ADLR accepts input voltages up to 5.5 V regardless of V_CC level, making it suitable for mixed-voltage systems. When V_CC = 3.3 V, inputs from 5-V microcontrollers or FPGAs can be directly connected without level-shifting circuitry-verified per the Absolute Maximum Ratings and VI specifications in the datasheet.

How does the I_off feature function in the SN74LVC16374ADLR?

The I_off circuitry in the SN74LVC16374ADLR disables all outputs when V_CC = 0 V, limiting leakage current to ±10 μA. This prevents damaging back-current flow during live insertion, partial power-down, or hot-swap events-critical in modular server blades and industrial backplanes where subsystems power up/down independently.

What is the output drive capability of the SN74LVC16374ADLR at 3.3 V?

At V_CC = 3.3 V, the SN74LVC16374ADLR delivers ±24 mA per output (I_OH/I_OL), sufficient to drive multiple CMOS loads or terminate lightly loaded transmission lines. Total device output current is limited to ±100 mA across all pins, and individual outputs must not exceed ±50 mA per the Absolute Maximum Ratings.

Which package type does the SN74LVC16374ADLR use, and what are its mechanical dimensions?

The SN74LVC16374ADLR uses a 48-pin SSOP (DL) package with nominal dimensions of 15.80 mm × 7.50 mm and 0.635-mm lead pitch. It is supplied in tape-and-reel format (1000 units/reel), RoHS-compliant, and rated for MSL Level-1 reflow (260°C peak). Pin 1 orientation follows quadrant Q1 per TI tape specification.

SN74LVC16374ADLR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74LVC

Package/Case:: 48-BSSOP (0.295", 7.50mm 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-SSOP

SN74LVC16374ADLR FAQ

1.How can I place an order for SN74LVC16374ADLR through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74LVC16374ADLR 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 SN74LVC16374ADLR reliable?

The price and inventory of SN74LVC16374ADLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC16374ADLR is usually 5 days.

3.What payment methods are accepted for SN74LVC16374ADLR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC16374ADLR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SN74LVC16374ADLR?

SN74LVC16374ADLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN74LVC16374ADLR 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 SN74LVC16374ADLR?

For technical support, including SN74LVC16374ADLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC16374ADLR requirements.

6.How does Aetrix verify that SN74LVC16374ADLR is sourced from the original manufacturer or authorized distributors?

All SN74LVC16374ADLR 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 SN74LVC16374ADLR meets industry standards.

7.What is the process for return or replacement of SN74LVC16374ADLR?

All SN74LVC16374ADLR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC16374ADLR, 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 SN74LVC16374ADLR part is unused and in its original packaging.

Return procedure for SN74LVC16374ADLR:

1.Submit a request within 90 days.

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

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