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

Texas Instruments SN74LVC16374AZRDR

Name: SN74LVC16374AZRDR
Brand: Texas Instruments
SKU: SN74LVC16374AZRDR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SN74LVC16374AZRDR

Manufacturer:: Texas Instruments

Category:: Flip Flops

Package:: 54-TFBGA

Datasheet:: SN74LVC16374AZRDR.pdf

Description:: IC FF D-TYPE DUAL 8BIT 54BGA

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Product details

Overview

SN74LVC16374AZRDR 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 group, delivers ±24 mA output drive at 3.3 V, supports 5.5-V-tolerant inputs, and enables bus-hold and mixed-voltage interfacing in server I/O buffers.

For engineers reviewing the SN74LVC16374AZRDR datasheet, SN74LVC16374AZRDR pinout, SN74LVC16374AZRDR application, or SN74LVC16374AZRDR equivalent, key selection criteria include its 150 MHz maximum clock frequency, I_off partial-power-down capability, 3-state output timing (t_en/t_dis ≤ 5.3 ns at 3.3 V), and TSSOP-48 package compatibility with high-density 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) inputs, enabling synchronous latching and tri-state control of 16 data lines. Its CMOS architecture supports 1.65–3.6 V supply operation while accepting 0–5.5 V input voltages-enabling level translation between 3.3-V logic and legacy 5-V systems.

The flip-flops trigger on the positive edge of CLK; OE controls output state without affecting internal storage. I_off circuitry disables outputs and blocks current backflow when V_CC = 0 V, supporting live insertion and hot-swap applications. Output ground bounce (V_OLP) remains below 0.8 V and VOH undershoot exceeds 2 V at 3.3 V, ensuring signal integrity in noisy environments.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CC Range	1.65 V to 3.6 V - Enables use across low-voltage embedded and industrial power rails.
Max Clock Frequency	150 MHz - Supports high-speed data capture in network switch control planes and PCIe sideband interfaces.
Output Drive	±24 mA at 3.3 V - Drives eight 50-Ω transmission lines or multiple LVC/LVT logic inputs without external buffers.
Input Voltage Tolerance	0 V to 5.5 V - Allows direct connection to 5-V microcontrollers or legacy peripherals without level shifters.
t_pd (CLK to Q)	1.5–4.5 ns at 3.3 V - Ensures sub-5 ns propagation for tight timing budgets in real-time I/O expansion.
I_off	±10 μA at V_CC = 0 V - Prevents damaging back-current during partial power-down in modular server backplanes.
ESD Rating	2000 V HBM, 1000 V CDM - Meets JEDEC JESD22-A114 and JESD22-C101 for robust handling in automated assembly.

Pinout & Package

TSSOP-48 package (DGG), 12.50 mm × 6.10 mm body size, 0.5-mm lead pitch, moisture sensitivity level 1 (260°C peak reflow), RoHS-compliant NiPdAu lead finish.

Pin/Terminal	Circuit Role	Design Meaning
1, 24	1OE, 2OE	Active-low output enable for Bank 1 and Bank 2 - Controls 8 outputs per bank independently into high-Z state.
48, 25	1CLK, 2CLK	Positive-edge clock inputs - Synchronize data latching for respective 8-bit banks without shared clock skew.
2–12, 13–23	1Q1–1Q8, 2Q1–2Q8	Tri-state outputs - Drive bidirectional buses or isolated logic domains; high-Z prevents contention during read/write arbitration.
37–47, 26–36	1D1–1D8, 2D1–2D8	Data inputs - Accept 5.5-V-tolerant signals; latch on rising CLK edge regardless of V_CC within operating range.
4, 10, 15, 21, 28, 34, 39, 42, 45, 47	GND / V_CC	Eight GND and four V_CC pins - Reduce simultaneous switching noise and improve power integrity in high-drive operation.

Key Features

Feature	Design Value
Wide V_CC range (1.65–3.6 V)	Supports single-supply operation across battery-powered IoT nodes and 3.3-V industrial controllers without voltage translation.
5.5-V-tolerant inputs	Eliminates need for external level shifters when interfacing with 5-V sensors, legacy UARTs, or FPGA I/O banks.
I_off protection	Enables safe hot-plug insertion in modular computing systems by blocking reverse current flow during partial power-down.
Low ground bounce (V_OLP < 0.8 V)	Maintains signal fidelity in high-speed parallel buses by minimizing transient noise coupling through shared GND paths.
High drive strength (±24 mA)	Drives long traces or multiple loads directly-reducing component count in memory interface buffers and display controller data latches.

Applications

Server I/O Expansion	Industrial PLC Backplane Interface
Use Scenario: Adding GPIO or status register capability to a server management controller via parallel bus. IC Role / Device Role / Timing Role: 16-bit latch buffering sensor readings and control commands between BMC and peripheral modules. Use Value: ±24 mA drive ensures reliable signaling over 10-cm backplane traces; I_off allows safe module replacement without powering down entire chassis.	Use Scenario: Isolating field I/O signals from CPU-side logic in programmable logic controllers. IC Role / Device Role / Timing Role: Dual-bank register synchronizing analog-to-digital conversion results and digital output commands. Use Value: Independent 1OE/2OE control enables time-multiplexed access to separate input and output banks; 5.5-V tolerance accepts direct 24-V sensor inputs via resistive dividers.
Network Switch Control Plane	Embedded Display Data Latching
Use Scenario: Capturing configuration bits from serial EEPROM or flash memory during switch boot-up. IC Role / Device Role / Timing Role: High-speed 16-bit parallel latch capturing 150-MHz SPI-to-parallel bridge outputs. Use Value: 4.5 ns t_pd meets setup/hold timing for multi-gigabit control plane interfaces; low V_OLP prevents false triggering in dense switch fabric PCBs.	Use Scenario: Holding RGB pixel data for TFT-LCD panels driven by low-pin-count microcontrollers. IC Role / Device Role / Timing Role: 16-bit data register staging parallel video data before column driver activation. Use Value: Tri-state outputs allow sharing of data bus with touchscreen controller; 3.3-V operation matches modern MCU I/O voltage without level-shifting overhead.

Server I/O Expansion

Industrial PLC Backplane Interface

Use Scenario: Adding GPIO or status register capability to a server management controller via parallel bus.

IC Role / Device Role / Timing Role: 16-bit latch buffering sensor readings and control commands between BMC and peripheral modules.

Use Value: ±24 mA drive ensures reliable signaling over 10-cm backplane traces; I_off allows safe module replacement without powering down entire chassis.

Use Scenario: Isolating field I/O signals from CPU-side logic in programmable logic controllers.

IC Role / Device Role / Timing Role: Dual-bank register synchronizing analog-to-digital conversion results and digital output commands.

Use Value: Independent 1OE/2OE control enables time-multiplexed access to separate input and output banks; 5.5-V tolerance accepts direct 24-V sensor inputs via resistive dividers.

Network Switch Control Plane

Embedded Display Data Latching

Use Scenario: Capturing configuration bits from serial EEPROM or flash memory during switch boot-up.

IC Role / Device Role / Timing Role: High-speed 16-bit parallel latch capturing 150-MHz SPI-to-parallel bridge outputs.

Use Value: 4.5 ns t_pd meets setup/hold timing for multi-gigabit control plane interfaces; low V_OLP prevents false triggering in dense switch fabric PCBs.

Use Scenario: Holding RGB pixel data for TFT-LCD panels driven by low-pin-count microcontrollers.

IC Role / Device Role / Timing Role: 16-bit data register staging parallel video data before column driver activation.

Use Value: Tri-state outputs allow sharing of data bus with touchscreen controller; 3.3-V operation matches modern MCU I/O voltage without level-shifting overhead.

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
SN74LVC16373ADGGR	Latch (transparent) instead of edge-triggered flip-flop; no clock input; OE-controlled transparent mode.	Suitable for address/data bus latching where continuous data pass-through is required, not for synchronous sampling.	Select when system requires transparent data flow during OE active, not edge-aligned capture.
74ALVC16374PW	Same function but in TSSOP-48 with different thermal metrics (R_θJA = 72.4°C/W vs. 78.4°C/W); identical timing and drive specs.	Drop-in compatible for designs requiring NXP-sourced parts or specific qualification history.	Choose for supply chain diversification where TI and NXP sourcing must coexist in same BOM revision.

Compared with SN74LVC16374ADGGR and 74ALVC16374PW, the SN74LVC16374AZRDR offers identical functional behavior and timing but is specifically ordered in tape-and-reel packaging (ZRDR suffix) optimized for high-volume SMT placement, with verified MSL-1 handling and traceable lot marking per TI production standards.

Availability

SN74LVC16374AZRDR is available at Aetrix Electronics and suitable for server I/O expansion, industrial PLC backplane interfaces, and network switch control plane designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant TSSOP packaging.

Supply support for SN74LVC16374AZRDR 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 components.

The SN74LVC16374AZRDR belongs to TI's Widebus™ family of advanced CMOS logic devices, engineered for high-speed, low-voltage bus interface applications in servers, networking equipment, and industrial automation systems.

FAQ

What is the maximum clock frequency supported by the SN74LVC16374AZRDR?

The SN74LVC16374AZRDR supports a maximum clock frequency of 150 MHz across its full operating voltage range (1.65 V to 3.6 V). This specification is validated per TI's SCAS728B datasheet under recommended conditions, with pulse width (t_w) ≥ 3.3 ns and setup/hold times met at all V_CC levels. At 3.3 V, timing margins remain sufficient for PCIe Gen1 sideband clocking and DDR2 command bus latching.

Does the SN74LVC16374AZRDR support 5-V input signals?

Yes, the SN74LVC16374AZRDR accepts input voltages up to 5.5 V regardless of V_CC level (1.65–3.6 V), enabling direct interfacing with 5-V microcontrollers, sensors, or legacy peripherals. This 5.5-V tolerance is explicitly specified in Section 7.1 (Absolute Maximum Ratings) and 7.5 (Electrical Characteristics) of the TI datasheet, and does not require external clamping or level-shifting circuitry.

How does the I_off feature work in the SN74LVC16374AZRDR?

The I_off circuitry in the SN74LVC16374AZRDR automatically disables all outputs and blocks current flow when V_CC = 0 V, limiting reverse current to ±10 μA. This protects upstream drivers during hot-swap events and enables partial-power-down modes in modular systems. The feature is intrinsic to the device's design and requires no external components or configuration-verified per JESD78 latch-up testing and documented in Section 9.3 of the datasheet.

What is the output drive capability of the SN74LVC16374AZRDR at 3.3 V?

At V_CC = 3.3 V, the SN74LVC16374AZRDR delivers ±24 mA per output pin (I_OH/I_OL), with total device current limited to ±100 mA across all V_CC/GND pins. This drive strength allows direct connection to eight LVC loads or termination-resistor networks without buffer amplification-confirmed in Table 7.3 (Recommended Operating Conditions) and Figure 5 (I_OL/I_OH vs. V_CC) of the official TI datasheet.

Which package type corresponds to the ZRDR suffix in SN74LVC16374AZRDR?

The ZRDR suffix denotes Texas Instruments' standard tape-and-reel packaging for the TSSOP-48 (DGG) variant of the SN74LVC16374A, with 2000 units per reel, MSL-1 rating, and NiPdAu lead finish. This packaging format is optimized for high-speed SMT placement and is distinct from tube-packaged (DL) or alternate reel variants (e.g., DGGR)-as confirmed in TI's Package Option Addendum (SCAS728B, p. 14).

SN74LVC16374AZRDR Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: 74LVC

Package/Case:: 54-TFBGA

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

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:: 54-BGA Microstar Junior (8x5.5)

SN74LVC16374AZRDR FAQ

1.How can I place an order for SN74LVC16374AZRDR through Aetrix?

Please submit a Request for Quotation (RFQ) for SN74LVC16374AZRDR 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 SN74LVC16374AZRDR reliable?

The price and inventory of SN74LVC16374AZRDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC16374AZRDR is usually 5 days.

3.What payment methods are accepted for SN74LVC16374AZRDR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC16374AZRDR transactions.

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4.How is shipping managed for SN74LVC16374AZRDR?

SN74LVC16374AZRDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SN74LVC16374AZRDR 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 SN74LVC16374AZRDR?

For technical support, including SN74LVC16374AZRDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC16374AZRDR requirements.

6.How does Aetrix verify that SN74LVC16374AZRDR is sourced from the original manufacturer or authorized distributors?

All SN74LVC16374AZRDR 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 SN74LVC16374AZRDR meets industry standards.

7.What is the process for return or replacement of SN74LVC16374AZRDR?

All SN74LVC16374AZRDR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC16374AZRDR, 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 SN74LVC16374AZRDR part is unused and in its original packaging.

Return procedure for SN74LVC16374AZRDR:

1.Submit a request within 90 days.

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

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