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Texas Instruments 74LVTH162374ZQLR
- Part No.:
- 74LVTH162374ZQLR
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 56-VFBGA
- Datasheet:
-
74LVTH162374ZQLR.pdf
- Description:
- IC FF D-TYPE DUAL 8BIT 56BGA
- Quantity:
- Payment:
- Shipping:
Inventory:988
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Product details
Overview
74LVTH162374ZQLR 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, 160-MHz clock frequency, and bus-hold on all data inputs. It serves as a high-speed bidirectional bus register or I/O port in industrial control backplanes and memory interface buffers.
For engineers reviewing the 74LVTH162374ZQLR datasheet, 74LVTH162374ZQLR pinout, 74LVTH162374ZQLR application, or 74LVTH162374ZQLR equivalent, key selection considerations include its 2.7–3.6-V supply range, 12-mA output drive, integrated 22-Ω series termination, hot-insertion support via Ioff and power-up 3-state, and VFBGA-56 footprint compatibility with space-constrained PCB layouts.
Technical Context
The 74LVTH162374ZQLR implements two independent 8-bit edge-triggered D-type flip-flop banks, each with separate clock (1CLK/2CLK) and output-enable (1OE/2OE) controls, enabling flexible 8-bit or 16-bit synchronous data latching. Its ABT (Advanced BiCMOS Technology) architecture delivers TTL-compatible output levels while operating from a 3.3-V supply.
It features distributed VCC/GND pins to suppress switching noise, flow-through pin mapping for optimized trace routing, and active bus-hold circuitry eliminating external pullup/pulldown resistors on data inputs. The device enters high-impedance state during power-up/down when VCC is below 1.5 V, with Ioff protection preventing backflow current in powered-down systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 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 capture in fast parallel bus interfaces. |
| Output Drive | ±12 mA - sufficient to directly drive terminated transmission lines or multiple CMOS loads without buffering. |
| Input Compatibility | 5.5-V tolerant inputs - allows seamless interfacing with legacy 5-V logic while powered at 3.3 V. |
| Bus-Hold Current | ±750 µA max - actively holds unused inputs at valid logic levels, removing need for external biasing. |
| Propagation Delay | 1.4–6.6 ns (tPLH/tPHL) - ensures tight timing margins in high-speed synchronous designs. |
| Power-Up 3-State | Active below 1.5 V VCC - prevents bus contention during power sequencing without external control. |
Pinout & Package
74LVTH162374ZQLR uses a 56-ball Very Thin Fine-Pitch Ball Grid Array (VFBGA) package designated ZQL, measuring 7.0 mm × 4.5 mm × 0.9 mm (max height), with JEDEC MO-164AC compliance and RoHS-compliant lead finish (NiPdAu).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE | Output Enable (active-low) | Independent control of each 8-bit bank's 3-state output drivers; does not affect internal latch state. |
| 1CLK, 2CLK | Clock input (positive-edge triggered) | Synchronizes Q outputs to D inputs on rising edge; no internal synchronization between banks. |
| 1D1–1D8, 2D1–2D8 | Data inputs | All inputs feature bus-hold; tolerate 5.5-V signals regardless of VCC level. |
| 1Q1–1Q8, 2Q1–2Q8 | Registered outputs | Each output includes built-in 22-Ω series resistor to dampen overshoot/undershoot on PCB traces. |
| VCC, GND | Power and ground | Distributed across package (12 VCC, 12 GND balls) to minimize simultaneous switching noise. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode signal operation | 5-V-tolerant inputs with 3.3-V VCC enable direct connection to legacy 5-V buses without level shifters. |
| Integrated 22-Ω series termination | Eliminates need for discrete series resistors on every output, reducing BOM count and layout area. |
| Hot-insertion support | Ioff and power-up 3-state prevent damaging current flow and bus conflicts during live board insertion. |
| Flow-through architecture | Input-to-output pin mapping minimizes crossing traces, simplifying layer routing in dense PCBs. |
| Latch-up immunity | Exceeds 500 mA per JESD 17 - ensures robustness in noisy industrial environments with transient coupling. |
Applications
| Industrial Backplane Interface | Memory Module Data Buffer |
|---|---|
|
Use Scenario: High-speed parallel data transfer between CPU and peripheral cards in modular PLC chassis. IC Role / Device Role / Timing Role: Synchronous 16-bit register latching address/data bus signals with precise clock-aligned sampling. Use Value: 160-MHz operation and 2.8-ns setup time ensure reliable capture of fast multiplexed bus cycles under temperature variation. |
Use Scenario: Bidirectional data path buffering between DDR SDRAM controller and DIMM slot. IC Role / Device Role / Timing Role: Edge-triggered D-flip-flop providing controlled write-enable timing and 3-state isolation during read cycles. Use Value: ±12-mA drive strength and integrated 22-Ω termination match typical memory bus impedance, reducing signal integrity issues. |
| Test Equipment Digital I/O Port | Automotive ECU Diagnostic Interface |
|
Use Scenario: Programmable digital stimulus/response channel in automated test equipment with variable voltage rails. IC Role / Device Role / Timing Role: Configurable 8-bit or 16-bit I/O port with independent OE control for per-channel direction management. Use Value: Bus-hold on inputs maintains stable logic states during floating probe connections, improving test repeatability. |
Use Scenario: Isolating CAN/LIN transceiver data lines from microcontroller GPIO in engine control units. IC Role / Device Role / Timing Role: Level-shifting and noise-immune data register between 5-V sensor subsystems and 3.3-V MCU core. Use Value: 5.5-V input tolerance and –55°C to 125°C operating range meet automotive AEC-Q100 ambient requirements. |
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 |
|---|---|---|---|
| SN74LVC16374DGGR | Lower drive (±24 mA), no bus-hold, 1.65–3.6-V supply only - lacks 5-V input tolerance and integrated termination. | Suitable for pure 3.3-V systems where external termination and pullups are acceptable. | Select when cost sensitivity outweighs mixed-voltage interface needs and board space permits discrete components. |
| 74ALVCH162374GRDR | Same pinout and function but 2.3–3.6-V supply, higher speed (200 MHz), no Ioff - lacks hot-insertion capability. | Better for high-frequency compute interconnects where power sequencing is tightly controlled. | Prefer when maximum clock rate is critical and system-level hot-swap is managed externally. |
Compared with SN74LVC16374DGGR and 74ALVCH162374GRDR, the 74LVTH162374ZQLR uniquely combines 5-V input tolerance, built-in 22-Ω termination, bus-hold, and Ioff-enabled hot insertion - making it the only option among the three qualified for unregulated battery-powered industrial backplanes with legacy bus compatibility.
Availability
74LVTH162374ZQLR is available at Aetrix Electronics and suitable for industrial automation backplanes, memory module interfaces, automated test equipment I/O expansion, and automotive diagnostic gateways requiring stable component supply across extended temperature ranges.
Supply support for 74LVTH162374ZQLR 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 products.
The 74LVTH162374ZQLR belongs to TI's Widebus™ family of advanced bus-interface logic devices, engineered specifically for low-voltage, high-speed parallel data transfer in mixed-signal industrial and computing systems.
FAQ
What is the operating temperature range for the 74LVTH162374ZQLR?
The 74LVTH162374ZQLR is specified for operation from –55°C to +125°C, meeting extended industrial and automotive under-hood requirements. This rating applies specifically to the ZQL package variant and is validated per JEDEC JESD22-A104 and JESD22-A105 reliability testing protocols.
Does the 74LVTH162374ZQLR support hot insertion?
Yes, the 74LVTH162374ZQLR supports hot insertion via dual mechanisms: Ioff circuitry disables outputs when VCC = 0 V to prevent backflow current, and power-up 3-state forces outputs into high-impedance mode during power ramp-up. Both features are production-tested and documented in the SCBS262M datasheet.
Can the 74LVTH162374ZQLR be used with a 5-V microcontroller interface?
Yes - all data and control inputs (D1–D16, CLK, OE) are 5.5-V tolerant, allowing direct connection to 5-V logic outputs while the device operates at 3.3-V VCC. No external level shifters are required, and this compatibility is guaranteed across the full –55°C to +125°C temperature range.
What is the purpose of the 22-Ω series resistors on the 74LVTH162374ZQLR outputs?
The 22-Ω series resistors integrated into each output of the 74LVTH162374ZQLR dampen signal reflections and reduce overshoot/undershoot on PCB traces, especially in unterminated or lightly loaded bus configurations. This eliminates the need for discrete series termination resistors and improves signal integrity without increasing layout complexity.
How does bus-hold functionality work on the 74LVTH162374ZQLR?
The 74LVTH162374ZQLR incorporates active bus-hold circuitry on all data inputs, which detects floating states and applies weak feedback to maintain the last valid logic level (typically ±750 µA holding current). This prevents undefined states during signal transitions or unconnected pins, and obviates external pullup/pulldown resistors per the SCBS262M datasheet specifications.
74LVTH162374ZQLR 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:
- 5.3ns @ 3.3V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 12mA, 12mA
- 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)
74LVTH162374ZQLR FAQ
1.How can I place an order for 74LVTH162374ZQLR through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVTH162374ZQLR 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 74LVTH162374ZQLR reliable?
The price and inventory of 74LVTH162374ZQLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVTH162374ZQLR is usually 5 days.
3.What payment methods are accepted for 74LVTH162374ZQLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVTH162374ZQLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVTH162374ZQLR?
74LVTH162374ZQLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVTH162374ZQLR 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 74LVTH162374ZQLR?
For technical support, including 74LVTH162374ZQLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVTH162374ZQLR requirements.
6.How does Aetrix verify that 74LVTH162374ZQLR is sourced from the original manufacturer or authorized distributors?
All 74LVTH162374ZQLR 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 74LVTH162374ZQLR meets industry standards.
7.What is the process for return or replacement of 74LVTH162374ZQLR?
All 74LVTH162374ZQLR units undergo pre-shipment inspection (PSI). If there is an issue with 74LVTH162374ZQLR, 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 74LVTH162374ZQLR part is unused and in its original packaging.
Return procedure for 74LVTH162374ZQLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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