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Texas Instruments SN74LVTH16374GQLR
- Part No.:
- SN74LVTH16374GQLR
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 56-VFBGA
- Datasheet:
-
SN74LVTH16374GQLR.pdf
- Description:
- IC FF D-TYPE DUAL 8BIT 56BGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,872
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Product details
Overview
SN74LVTH16374GQLR 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 (GQL) package. It features dual 8-bit banks, positive-edge clocking, bus-hold on all data inputs, Ioff support for hot insertion, and mixed-mode 5-V-tolerant I/O with 3.3-V VCC-enabling direct interfacing between 3.3-V logic and legacy 5-V systems in high-speed data buffering applications.
For engineers reviewing the SN74LVTH16374GQLR datasheet, SN74LVTH16374GQLR pinout, SN74LVTH16374GQLR application, or SN74LVTH16374GQLR equivalent, this device is selected for high-density board space-constrained designs requiring TTL-compatible 3-state bus driving, latch-based data synchronization, and robust hot-swap capability without external biasing components.
Technical Context
The SN74LVTH16374GQLR implements two independent 8-bit D-type flip-flop banks, each with separate clock (1CLK/2CLK) and output-enable (1OE/2OE) controls. Its Advanced BiCMOS Technology (ABT) enables 160-MHz maximum clock frequency at VCC = 3.3 V while maintaining TTL-level input thresholds (VIH = 2 V, VIL = 0.8 V) and 5-V-tolerant I/O.
Each bank supports simultaneous latching on the rising edge of its clock, with 3-state outputs that enter high-impedance mode when OE is high. Bus-hold circuitry actively maintains valid logic states on undriven D inputs, eliminating need for external pullup/pulldown resistors-critical for stub-bus and backplane interface reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage (VCC) | 2.7 V to 3.6 V - supports unregulated battery operation down to 2.7 V; stable across industrial temperature range. |
| Max Clock Frequency | 160 MHz at VCC = 3.3 V - enables high-throughput data capture in memory interfaces and parallel buses. |
| Output Drive Strength | IOL = 64 mA / IOH = –32 mA - sufficient to drive multiple TTL loads or long PCB traces without buffers. |
| Input Voltage Tolerance | VI up to 5.5 V - allows direct connection to 5-V logic without level shifters in mixed-voltage systems. |
| Propagation Delay (tPLH/tPHL) | 1.4 ns to 5.2 ns (VCC = 3.3 V) - ensures tight timing margins in synchronous register pipelines. |
| Bus-Hold Current | ±750 μA max (VCC = 3.6 V) - actively sustains input state during signal float, reducing system-level noise susceptibility. |
| Power-Up 3-State | Active below 1.5 V VCC - prevents bus contention during power ramp-up/down in hot-plug systems. |
Pinout & Package
SN74LVTH16374GQLR uses a 56-ball Very Thin Fine-Pitch Ball Grid Array (VFBGA) package designated GQL (10 mm × 8 mm, 0.5-mm pitch), optimized for high I/O density and low-inductance grounding via distributed VCC/GND balls.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE | Output Enable (active-low) | Independent control per 8-bit bank; asserts high-impedance state without affecting internal latch state. |
| 1CLK, 2CLK | Clock Input (positive-edge triggered) | Synchronizes Q outputs to D inputs on rising edge; no internal clock conditioning required. |
| 1D1–1D8, 2D1–2D8 | Data Inputs | All feature integrated bus-hold; retain last valid logic level when floating-no external resistors needed. |
| 1Q1–1Q8, 2Q1–2Q8 | Registered Outputs | 3-state capable; drive high/low or present >10⁶ Ω impedance to bus when disabled. |
| VCC, GND | Power & Ground | Distributed across package (12 VCC + 12 GND balls) - minimizes switching noise and improves signal integrity. |
Key Features
| Feature | Design Value |
|---|---|
| 3.3-V ABT Technology | Delivers TTL-compatible performance at 3.3 V with <0.8 V typical ground bounce (VOLP), enabling clean signal edges in dense layouts. |
| Mixed-Mode I/O | 5-V-tolerant inputs/outputs with 3.3-V VCC - eliminates level translators in 3.3-V controller ↔ 5-V peripheral interconnects. |
| Ioff Protection | Disables outputs when VCC = 0 V - prevents damaging current backflow during hot insertion or partial power-down. |
| Flow-Through Architecture | Input and output pins arranged on opposite sides of package - simplifies layer routing and reduces trace crossovers. |
| Latch-Up Immunity | Exceeds 500 mA per JESD 17 - ensures robust operation in noisy industrial environments with transient coupling. |
Applications
| Industrial PLC Backplane Interface | Automotive Body Control Module Data Latching |
|---|---|
Use Scenario: Bidirectional data transfer between microcontroller and modular I/O cards over a shared 16-bit parallel bus with variable timing skew. IC Role / Device Role / Timing Role: Acts as synchronized input latch and output buffer, capturing sensor data on CLK↑ and driving actuator commands with 3-state isolation. Use Value: Bus-hold eliminates floating inputs during card hot-swap; 5-V tolerance allows reuse of legacy 5-V sensor modules with new 3.3-V MCU. |
Use Scenario: Isolating and synchronizing signals between infotainment head unit (3.3-V) and door module ECUs (5-V) in CAN gateway subsystems. IC Role / Device Role / Timing Role: Provides voltage-level agnostic data staging between domains; OE-controlled 3-state prevents bus contention during firmware updates. Use Value: Ioff and power-up 3-state guarantee zero current injection during ECU power cycling-meeting ISO 16750-2 automotive electrical stress requirements. |
| High-Density FPGA I/O Expansion | Test Equipment Digital Pattern Generator |
Use Scenario: Extending limited FPGA I/O count to drive 16-bit address/data multiplexed bus for external SRAM or flash memory. IC Role / Device Role / Timing Role: Functions as edge-triggered register bank, aligning asynchronous host writes to synchronous memory access timing. Use Value: 160-MHz clock rating supports >80-MB/s sustained throughput; distributed VCC/GND balls suppress simultaneous switching noise in high-speed memory bursts. |
Use Scenario: Generating precise, glitch-free 16-bit stimulus patterns for IC functional testing under automated test equipment (ATE) control. IC Role / Device Role / Timing Role: Serves as deterministic pattern latch-capturing parallel vectors from pattern RAM on CLK↑ and holding stable outputs until next cycle. Use Value: Sub-2-ns propagation delay variation (tsk(LH)/tsk(HL) ≤ 0.5 ns) ensures vector timing accuracy within ±100 ps across all 16 bits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit 3-state D-flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16374DGGR | Lower drive (IOL = 24 mA), no bus-hold, 1.65–3.6 V VCC - lacks 5-V tolerance and hot-insertion support. | Suitable only for pure 3.3-V systems with controlled I/O termination; not viable for mixed-voltage or hot-swap use cases. | Select only if cost sensitivity outweighs mixed-voltage interoperability and bus stability requirements. |
| SN74ALVCH16374DLR | Higher speed (200 MHz), same 5-V tolerance and bus-hold, but SSOP-48 package - larger footprint and lower thermal efficiency than GQL. | Better for prototyping or low-volume assembly where reflow compatibility with through-hole tooling is prioritized over board area. | Choose when layout flexibility and hand-soldering feasibility are critical, and 56-ball BGA assembly is unavailable. |
Compared with SN74LVC16374DGGR and SN74ALVCH16374DLR, the SN74LVTH16374GQLR uniquely combines 5-V I/O tolerance, integrated bus-hold, Ioff hot-swap protection, and ultra-compact VFBGA packaging-making it the only option meeting simultaneous requirements for space-constrained, mixed-voltage, and field-serviceable systems.
Availability
SN74LVTH16374GQLR is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, FPGA I/O expansion, and ATE digital pattern generation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74LVTH16374GQLR 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 products for industrial and automotive markets.
The SN74LVTH16374GQLR belongs to TI's Widebus™ family of advanced 3.3-V ABT logic devices, engineered specifically for high-speed, mixed-voltage system interfacing with emphasis on noise immunity, hot-plug safety, and PCB area efficiency.
FAQ
What is the operating temperature range for SN74LVTH16374GQLR?
The SN74LVTH16374GQLR is rated for operation from –40°C to +85°C, matching the commercial/industrial grade specification for the GQL package variant. This range is validated per JEDEC JESD47 and supports deployment in factory automation controllers, network infrastructure equipment, and automotive cabin electronics where ambient temperatures remain within these limits.
Does SN74LVTH16374GQLR support hot insertion?
Yes, SN74LVTH16374GQLR supports hot insertion via two complementary mechanisms: Ioff circuitry disables outputs when VCC = 0 V to prevent reverse current flow, and power-up 3-state forces outputs into high-impedance mode during VCC ramp from 0 V to 1.5 V-both confirmed in the device's recommended operating conditions and absolute maximum ratings tables.
Can SN74LVTH16374GQLR interface directly with 5-V logic?
Yes, SN74LVTH16374GQLR accepts input voltages up to 5.5 V and drives outputs compatible with 5-V TTL levels while operating from a 3.3-V supply. This mixed-mode capability is explicitly specified in the "Recommended Operating Conditions" table and eliminates external level-shifting components in hybrid-voltage systems.
What is the function of the bus-hold circuitry on SN74LVTH16374GQLR?
The bus-hold circuitry on SN74LVTH16374GQLR actively maintains the last-valid logic state on each D input when left floating, drawing ±750 μA maximum to sustain VIH or VIL. This eliminates external pullup/pulldown resistors in stub-bus topologies and improves noise margin in unterminated transmission lines-verified in the Electrical Characteristics table under II(hold).
Is SN74LVTH16374GQLR pin-compatible with other LVTH16374 package variants?
No, SN74LVTH16374GQLR is not pin-compatible with DGG (TSSOP-48) or DL (SSOP-48) variants due to fundamental package differences: GQL uses a 56-ball BGA layout with distinct ball assignments (e.g., NC balls at A1–A5, K2–K5), whereas DGG/DL are 48-pin gull-wing packages with linear pinouts. Board redesign is required for package substitution.
SN74LVTH16374GQLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVTH
- Package/Case:
- 56-VFBGA
- Packaging:
- Cut Tape (CT)
- 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:
- 5.2ns @ 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)
SN74LVTH16374GQLR FAQ
1.How can I place an order for SN74LVTH16374GQLR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVTH16374GQLR 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 SN74LVTH16374GQLR reliable?
The price and inventory of SN74LVTH16374GQLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVTH16374GQLR is usually 5 days.
3.What payment methods are accepted for SN74LVTH16374GQLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVTH16374GQLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVTH16374GQLR?
SN74LVTH16374GQLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVTH16374GQLR 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 SN74LVTH16374GQLR?
For technical support, including SN74LVTH16374GQLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVTH16374GQLR requirements.
6.How does Aetrix verify that SN74LVTH16374GQLR is sourced from the original manufacturer or authorized distributors?
All SN74LVTH16374GQLR 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 SN74LVTH16374GQLR meets industry standards.
7.What is the process for return or replacement of SN74LVTH16374GQLR?
All SN74LVTH16374GQLR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVTH16374GQLR, 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 SN74LVTH16374GQLR part is unused and in its original packaging.
Return procedure for SN74LVTH16374GQLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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