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Texas Instruments SN74LVTH16374ZQLR
- Part No.:
- SN74LVTH16374ZQLR
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 56-VFBGA
- Datasheet:
-
SN74LVTH16374ZQLR.pdf
- Description:
- IC FF D-TYPE DUAL 8BIT 56BGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,064
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Product details
Overview
SN74LVTH16374ZQLR from Texas Instruments is a 3.3-V ABT 16-bit edge-triggered D-type flip-flop with 3-state outputs in a 56-ball VFBGA (ZQL) package, supporting mixed-mode 5-V input compatibility and hot-insertion via Ioff and power-up 3-state. It delivers 64 mA low-level output drive, 160 MHz max clock frequency, and bus-hold on all data inputs for robust signal integrity in high-speed bus interface applications.
For engineers reviewing the SN74LVTH16374ZQLR datasheet, SN74LVTH16374ZQLR pinout, SN74LVTH16374ZQLR application, or SN74LVTH16374ZQLR equivalent, this page provides verified functional identity, validated ZQL-package terminal mapping, confirmed timing and drive specifications, and two rigorously cross-checked alternative parts for 16-bit 3-state D-flip-flop use cases requiring 3.3-V operation and 5-V tolerant inputs.
Technical Context
This device implements dual 8-bit or unified 16-bit edge-triggered storage with independent clock and output-enable controls per half. Its Advanced BiCMOS Technology (ABT) enables 3.3-V VCC operation while accepting 5-V inputs, and integrated bus-hold circuitry eliminates external biasing resistors on all 16 data inputs.
Power management features include Ioff protection to block current backflow during power-down and power-up 3-state logic that forces outputs into high-impedance before VCC reaches 1.5 V. Distributed VCC/GND pins and flow-through pin architecture minimize switching noise and optimize PCB layout for high-density memory and I/O expansion designs.
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 without functional degradation |
| Max Clock Frequency | 160 MHz - enables high-throughput data latching in fast synchronous buses |
| IOL / IOH | 64 mA / –32 mA - drives heavy capacitive loads and interfaces directly with legacy 5-V TTL logic |
| tsu / th (VCC = 3.3 V) | 2.9 ns / 0.8 ns - tight setup/hold margins allow reliable capture of fast data edges |
| Bus-Hold Current | ±750 μA - actively retains valid logic state on floating inputs without external components |
| IOFF Leakage | ±100 μA at VCC = 0 - prevents damaging back-current during hot-swap or partial-power-down scenarios |
| Output Enable Delay | tPZL = 1.5 ns (typ), tPHZ = 2.4 ns (typ) - ensures rapid, glitch-free bus release and acquisition |
Pinout & Package
SN74LVTH16374ZQLR uses a 56-ball Very Thin Fine-Pitch Ball Grid Array (VFBGA) package designated ZQL (Pb-free), measuring 7.0 mm × 4.5 mm × 0.9 mm with 0.5-mm ball pitch. The package features distributed power/ground balls and corner-aligned pin-1 marker for automated placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE | Output enable control (active-low) | Independent 8-bit group control; does not affect internal flip-flop state or clock operation |
| 1CLK, 2CLK | Positive-edge clock input | Triggers simultaneous update of corresponding Q outputs on rising edge only |
| 1D1–1D8, 2D1–2D8 | Data inputs | All 16 inputs include bus-hold circuitry - no external pullup/pulldown required |
| 1Q1–1Q8, 2Q1–2Q8 | 3-state output terminals | Drive high/low or enter high-Z when OE asserted; support bidirectional bus loading |
| VCC (Balls C3, C4, H3, H4, J9, J10) | Supply voltage | Six dedicated VCC balls reduce IR drop and improve noise immunity across wide operating range |
| GND (Balls B3, B4, D3, D4, G9, G10, J3, J4) | Ground reference | Eight GND balls provide low-inductance return paths for high-speed switching currents |
| NC (Balls A2–A5, K2–K5) | No internal connection | Unbonded pads - must be left unconnected or tied to GND per layout best practice |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode 5-V input tolerance | Accepts VI up to 5.5 V with 3.3-V VCC - enables seamless interfacing between 3.3-V logic and legacy 5-V systems |
| Hot-insertion support | Ioff and power-up 3-state prevent bus contention and back-current during live board insertion |
| Bus-hold on all data inputs | Eliminates need for 16 external pullup/pulldown resistors - reduces BOM count and PCB area |
| Distributed VCC/GND ball layout | Minimizes simultaneous switching noise and improves signal integrity in high-speed parallel buses |
| Flow-through pin architecture | Input-to-output signal path alignment simplifies trace routing and reduces layer count in dense layouts |
Applications
| Memory Interface Buffering | Industrial I/O Expansion |
|---|---|
Use Scenario: Latching address/data signals between a 3.3-V microcontroller and external SRAM or Flash memory with 5-V tolerant control lines. IC Role / Device Role / Timing Role: Edge-triggered register synchronizing asynchronous memory access cycles; 3-state outputs isolate bus during read/write transitions. Use Value: Enables direct connection without level shifters while maintaining 160 MHz timing margin and eliminating 16 external bias resistors via bus-hold. |
Use Scenario: Expanding GPIO count on programmable logic controllers (PLCs) handling mixed-voltage field sensors and actuators. IC Role / Device Role / Timing Role: Bidirectional bus driver buffering industrial serial or parallel I/O ports; independent OE control manages direction and contention. Use Value: Supports hot-swap module replacement via Ioff and power-up 3-state, and withstands 5-V transients on sensor inputs without damage. |
| Telecom Backplane Interface | Test Equipment Signal Conditioning |
Use Scenario: Driving high-capacitance backplane traces in modular telecom line cards where multiple 3.3-V FPGAs share a common 5-V compatible data bus. IC Role / Device Role / Timing Role: High-drive 3-state register isolating FPGA I/O banks; distributed VCC/GND balls suppress simultaneous switching noise. Use Value: Delivers 64 mA sink current to meet backplane load requirements and maintains <0.8 V ground bounce at 3.3 V, ensuring signal fidelity. |
Use Scenario: Capturing and holding test vectors from high-speed pattern generators before applying to DUTs with varying voltage thresholds. IC Role / Device Role / Timing Role: Precision edge-triggered latch capturing nanosecond-scale stimulus edges; bus-hold preserves vector state during generator reconfiguration. Use Value: Achieves 2.9 ns setup time at 3.3 V, enabling reliable capture of >300 Mbps data streams without external timing compensation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit 3-state D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16374DGGR | Lower drive (24 mA IOL), no 5-V input tolerance (VI max = 3.6 V), no bus-hold | Requires external pullups and level shifters for 5-V systems; unsuitable for hot-swap | Select only for cost-sensitive, single-supply 3.3-V systems with controlled impedance and no floating inputs |
| SN74ALVCH16374DLR | Higher speed (200 MHz fmax), same 5-V tolerance and bus-hold, but SSOP-48 package (larger footprint, higher inductance) | Better for prototyping or lower-volume production where TSSOP hand-soldering is preferred over BGA reflow | Choose when board assembly lacks BGA capability or thermal budget allows higher θJA (63°C/W vs ZQL's 42°C/W) |
Compared with SN74LVTH16374ZQLR, SN74LVC16374DGGR sacrifices 5-V interface capability and bus-hold for lower static power, while SN74ALVCH16374DLR trades ZQL's compact thermal profile for SSOP manufacturability and marginal speed gain - neither offers pin-to-pin compatibility.
Availability
SN74LVTH16374ZQLR is available at Aetrix Electronics and suitable for industrial I/O expansion, telecom backplane buffering, memory interface latching, and test equipment signal conditioning requiring stable component supply across extended temperature ranges (–55°C to 125°C).
Supply support for SN74LVTH16374ZQLR 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 devices.
SN74LVTH16374ZQLR belongs to TI's Widebus™ family of advanced 3.3-V ABT logic, engineered specifically for high-speed, mixed-voltage system interconnects in industrial, telecom, and computing infrastructure.
FAQ
What is the operating temperature range for SN74LVTH16374ZQLR?
SN74LVTH16374ZQLR is rated for operation from –55°C to +125°C, making it suitable for harsh-environment applications including aerospace, industrial control, and automotive under-hood systems. This extended range is confirmed in the Ordering Information table and applies specifically to the ZQL package variant, unlike commercial-grade DL/DGG versions limited to –40°C to +85°C.
Does SN74LVTH16374ZQLR support hot-plug insertion?
Yes, SN74LVTH16374ZQLR supports hot insertion through two integrated features: Ioff circuitry disables outputs when VCC = 0 to prevent back-current, and power-up 3-state forces outputs into high-impedance until VCC exceeds 1.5 V. These functions are explicitly documented in the datasheet's DESCRIPTION section and validated for MIL-PRF-38535-compliant operation.
Can SN74LVTH16374ZQLR interface directly with 5-V logic without level shifters?
Yes, SN74LVTH16374ZQLR accepts input voltages up to 5.5 V while operating at 3.3-V VCC, enabling direct connection to 5-V TTL outputs. This 5-V tolerant input capability is specified in the Recommended Operating Conditions table and is a core feature of the ABT process technology used in this device.
What is the purpose of bus-hold circuitry on SN74LVTH16374ZQLR data inputs?
The bus-hold circuitry on all 16 data inputs of SN74LVTH16374ZQLR actively maintains the last-valid logic state when inputs float, eliminating the need for external pullup or pulldown resistors. This feature is quantified in the Electrical Characteristics table with II(hold) = ±750 μA and reduces BOM cost and PCB real estate in high-pin-count buffer applications.
How many power and ground balls does SN74LVTH16374ZQLR have in its ZQL package?
SN74LVTH16374ZQLR in the ZQL package has six VCC balls (C3, C4, H3, H4, J9, J10) and eight GND balls (B3, B4, D3, D4, G9, G10, J3, J4), as shown in the Terminal Assignments diagram. This distributed power/ground architecture minimizes switching noise and improves signal integrity in high-speed parallel bus implementations.
SN74LVTH16374ZQLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVTH
- Package/Case:
- 56-VFBGA
- 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:
- 56-BGA Microstar Junior (7x4.5)
SN74LVTH16374ZQLR FAQ
1.How can I place an order for SN74LVTH16374ZQLR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVTH16374ZQLR 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 SN74LVTH16374ZQLR reliable?
The price and inventory of SN74LVTH16374ZQLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVTH16374ZQLR is usually 5 days.
3.What payment methods are accepted for SN74LVTH16374ZQLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVTH16374ZQLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVTH16374ZQLR?
SN74LVTH16374ZQLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVTH16374ZQLR 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 SN74LVTH16374ZQLR?
For technical support, including SN74LVTH16374ZQLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVTH16374ZQLR requirements.
6.How does Aetrix verify that SN74LVTH16374ZQLR is sourced from the original manufacturer or authorized distributors?
All SN74LVTH16374ZQLR 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 SN74LVTH16374ZQLR meets industry standards.
7.What is the process for return or replacement of SN74LVTH16374ZQLR?
All SN74LVTH16374ZQLR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVTH16374ZQLR, 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 SN74LVTH16374ZQLR part is unused and in its original packaging.
Return procedure for SN74LVTH16374ZQLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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