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Texas Instruments SN74LVTH16374GRDR
- Part No.:
- SN74LVTH16374GRDR
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 54-TFBGA
- Datasheet:
-
SN74LVTH16374GRDR.pdf
- Description:
- IC FF D-TYPE DUAL 8BIT 54BGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,536
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Product details
Overview
SN74LVTH16374GRDR from Texas Instruments is a 3.3-V ABT 16-bit edge-triggered D-type flip-flop with 3-state outputs in a 54-ball VFBGA (GRD) package. It features dual 8-bit banks, bus-hold circuitry on all data inputs, Ioff support for hot insertion, and operates across –40°C to 85°C. It is used in high-speed bidirectional bus interfaces and I/O port expansion in mixed-voltage systems.
For engineers reviewing the SN74LVTH16374GRDR datasheet, SN74LVTH16374GRDR pinout, SN74LVTH16374GRDR application, or SN74LVTH16374GRDR equivalent, key selection considerations include its 3.3-V VCC with 5-V tolerant inputs, 160-MHz maximum clock frequency, distributed VCC/GND pins for noise reduction, and GRD package thermal resistance of 36°C/W.
Technical Context
The SN74LVTH16374GRDR implements two independent 8-bit positive-edge-triggered D-type flip-flop banks, each with dedicated clock (1CLK/2CLK) and output-enable (1OE/2OE) controls. Its Advanced BiCMOS Technology (ABT) enables 3.3-V operation while accepting 5-V input signals without level shifters.
It supports hot insertion via Ioff and power-up 3-state logic, ensures signal integrity with bus-hold on all 16 data inputs, and minimizes switching noise through distributed VCC and GND pins across the 54-ball GRD package layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - supports unregulated battery operation down to 2.7 V |
| Max Clock Frequency | 160 MHz - enables high-throughput data latching in fast digital buses |
| Input Voltage Tolerance | Up to 5.5 V - allows direct interfacing with 5-V TTL logic without external level translation |
| Output Drive (IOL) | 64 mA per channel - sufficient to drive heavy capacitive loads or multiple CMOS inputs |
| Bus-Hold Current | ±750 μA max - actively holds unused inputs at valid logic levels, eliminating external pull resistors |
| Thermal Resistance θJA | 36°C/W - optimized for compact PCB layouts with moderate airflow |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded and communications equipment |
Pinout & Package
The SN74LVTH16374GRDR uses a 54-ball Very Thin Fine-Pitch Ball Grid Array (VFBGA) package designated GRD (also labeled ZRD for Pb-free), measuring 7.0 mm × 4.5 mm × 0.9 mm with 0.5-mm ball pitch. It features perimeter I/O with internal NC (no-connect) balls and dedicated power/ground distribution.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE | Output enable control | Active-low enables/disables respective 8-bit output bank; does not affect internal latch state |
| 1CLK, 2CLK | Clock input | Positive-edge sensitive; triggers simultaneous capture of all 8 associated D inputs into Q outputs |
| 1D1–1D8, 2D1–2D8 | Data inputs | Each has integrated bus-hold; retains last valid logic level when floating or undriven |
| 1Q1–1Q8, 2Q1–2Q8 | Registered outputs | 3-state capable; high-impedance mode isolates bus lines during data arbitration or power-down |
| VCC, GND | Power rails | Distributed across package (12 VCC, 12 GND balls) to reduce simultaneous switching noise |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode voltage interface | 3.3-V VCC with 5-V tolerant inputs enables seamless integration into legacy 5-V systems |
| Hot-insertion support | Ioff and power-up 3-state prevent backflow current and bus conflicts during live board replacement |
| Bus-hold circuitry | Eliminates need for external pullup/pulldown resistors on all 16 data inputs |
| Flow-through pinout | Input-to-output signal path alignment simplifies PCB routing and reduces trace length mismatch |
| Latch-up immunity | Exceeds 500 mA per JESD 17 - robust against transient overvoltage events |
Applications
| High-Speed Memory Interface | Industrial PLC I/O Expansion |
|---|---|
Use Scenario: Latching address/data strobes between a 3.3-V FPGA and legacy 5-V SRAM or Flash memory. IC Role / Device Role / Timing Role: Acts as a bidirectional, edge-triggered register buffer with 3-state isolation during read/write direction changes. Use Value: Eliminates external level shifters and pull resistors while maintaining 160-MHz timing margins under mixed-voltage operation. | Use Scenario: Expanding digital input/output capacity on a modular PLC backplane operating at 3.3-V core but interfacing with 5-V field sensors and actuators. IC Role / Device Role / Timing Role: Serves as an isolated, hot-pluggable I/O port register with bus-hold protection against noisy industrial environments. Use Value: Enables reliable signal acquisition without external termination, and supports live module replacement without system shutdown. |
| Telecom Line Card Buffering | Automotive Infotainment Data Routing |
Use Scenario: Isolating and synchronizing parallel control signals between a 3.3-V baseband processor and 5-V line interface units (LIUs) in access equipment. IC Role / Device Role / Timing Role: Functions as a low-skew, 16-bit registered bus driver with configurable output enable per bank. Use Value: Delivers sub-5 ns propagation delay and <0.8 V ground bounce, ensuring signal integrity across dense backplane traces. | Use Scenario: Managing parallel display or audio data paths between a 3.3-V SoC and legacy 5-V display timing controller or audio codec in head-unit designs. IC Role / Device Role / Timing Role: Provides voltage-tolerant, glitch-free data staging with independent clocking for dual-display synchronization. Use Value: Reduces BOM count by replacing discrete level translators and pull networks while meeting AEC-Q100 ambient temperature requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit registered buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16374DGGR | Lower drive strength (24 mA IOL), no bus-hold, 5-V tolerant only up to 5.5 V with VCC = 3.3 V | Suitable for lower-noise, lower-power applications where external pull resistors are acceptable | Select when cost sensitivity outweighs need for bus-hold and higher drive; verify timing margins at 160 MHz |
| SN74ALVCH16374DLR | SSOP-48 package (DL), higher static current, no Ioff, requires external pull resistors | Better suited for prototyping or legacy SSOP-based designs with manual rework capability | Choose only if GRD package assembly infrastructure is unavailable; expect higher thermal resistance (63°C/W) |
Compared with SN74LVC16374DGGR and SN74ALVCH16374DLR, the SN74LVTH16374GRDR uniquely combines 64-mA drive, integrated bus-hold, Ioff-enabled hot insertion, and low-θJA in a space-constrained VFBGA - making it optimal for high-density, mixed-voltage production systems requiring zero external bias components.
Availability
SN74LVTH16374GRDR is available at Aetrix Electronics and suitable for high-speed memory interfacing, industrial PLC I/O expansion, telecom line card buffering, and automotive infotainment data routing requiring stable component supply and long-term lifecycle support.
Supply support for SN74LVTH16374GRDR 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 innovation in high-speed interface and bus technology.
The SN74LVTH16374GRDR belongs to TI's Widebus™ family of ABT logic devices, engineered specifically for low-voltage, high-drive, mixed-signal system interconnect in industrial, communications, and computing applications.
FAQ
What is the recommended power-up sequence for SN74LVTH16374GRDR?
TI specifies that SN74LVTH16374GRDR enters high-impedance state when VCC is below 1.5 V. To ensure defined outputs above that threshold, tie OE to VCC via a pullup resistor (value determined by driver sink capability). No strict sequencing between VCC and input signals is required due to Ioff and bus-hold protection. The SN74LVTH16374GRDR remains safe during uncontrolled ramp rates up to 200 μs/V.
Does SN74LVTH16374GRDR support true 5-V operation?
No. The SN74LVTH16374GRDR is a 3.3-V device (VCC = 2.7–3.6 V) with 5-V tolerant inputs - meaning it accepts 0–5.5 V input signals while powered at 3.3 V. Its outputs swing rail-to-rail within VCC, so they are not 5-V compatible unless level-shifted externally. This architecture avoids external level translators for input-side interfacing only.
How does bus-hold functionality work on SN74LVTH16374GRDR data inputs?
Each of the 16 data inputs on SN74LVTH16374GRDR includes active bus-hold circuitry that sources or sinks up to ±750 μA to maintain the last valid logic state when the input is floating or undriven. TI explicitly advises against using external pullup/pulldown resistors with this feature, as they may conflict with the internal feedback loop and degrade noise margin or increase power.
Can SN74LVTH16374GRDR be used as a single 16-bit register or two independent 8-bit registers?
Yes. The SN74LVTH16374GRDR contains two functionally identical 8-bit 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. They can operate synchronously with shared clocks or independently - enabling flexible partitioning for dual-bus or time-multiplexed architectures.
What is the thermal performance of SN74LVTH16374GRDR in its GRD package?
The SN74LVTH16374GRDR in the 54-ball GRD VFBGA package has a junction-to-ambient thermal resistance (θJA) of 36°C/W under standard JEDEC test conditions. This value reflects optimized internal power/ground ball distribution and supports continuous operation at full drive strength (64 mA per output) in compact industrial PCB layouts with minimal airflow.
SN74LVTH16374GRDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVTH
- 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:
- 160 MHz
- Max Propagation Delay @ V, Max CL:
- 4.5ns @ 3.3V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 32mA, 64mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Current - Quiescent (Iq):
- 190 µA
- Input Capacitance:
- 3 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 54-BGA Microstar Junior (8x5.5)
SN74LVTH16374GRDR FAQ
1.How can I place an order for SN74LVTH16374GRDR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVTH16374GRDR 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 SN74LVTH16374GRDR reliable?
The price and inventory of SN74LVTH16374GRDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVTH16374GRDR is usually 5 days.
3.What payment methods are accepted for SN74LVTH16374GRDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVTH16374GRDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVTH16374GRDR?
SN74LVTH16374GRDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVTH16374GRDR 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 SN74LVTH16374GRDR?
For technical support, including SN74LVTH16374GRDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVTH16374GRDR requirements.
6.How does Aetrix verify that SN74LVTH16374GRDR is sourced from the original manufacturer or authorized distributors?
All SN74LVTH16374GRDR 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 SN74LVTH16374GRDR meets industry standards.
7.What is the process for return or replacement of SN74LVTH16374GRDR?
All SN74LVTH16374GRDR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVTH16374GRDR, 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 SN74LVTH16374GRDR part is unused and in its original packaging.
Return procedure for SN74LVTH16374GRDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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