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Texas Instruments SN74LVTH162374DGG
- Part No.:
- SN74LVTH162374DGG
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
SN74LVTH162374DGG.pdf
- Description:
- IC FF D-TYPE DUAL 8BIT 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,576
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Product details
Overview
SN74LVTH162374DGG from Texas Instruments is a 3.3-V ABT 16-bit edge-triggered D-type flip-flop with 3-state outputs, designed for high-speed bus interface and register applications in mixed-voltage systems. It features dual 8-bit sections, 22-Ω integrated output series resistors, bus-hold on all data inputs, and supports 5-V tolerant inputs at 3.3-V VCC - enabling direct TTL-level interfacing in 3.3-V logic domains.
For engineers reviewing the SN74LVTH162374DGG datasheet, SN74LVTH162374DGG pinout, SN74LVTH162374DGG application, or SN74LVTH162374DGG equivalent, key selection considerations include its 160-MHz maximum clock frequency, ±12-mA output drive capability, Ioff hot-insertion support, 2.7-V to 3.6-V supply range, and TSSOP-48 (DGG) package compatibility with high-density PCB layouts.
Technical Context
This device implements two independent 8-bit positive-edge-triggered D-type flip-flops, each with individual clock (1CLK/2CLK) and output-enable (1OE/2OE) controls. Its ABT (Advanced BiCMOS Technology) architecture delivers TTL-compatible output levels while operating from a 3.3-V supply, with 5-V input tolerance and bus-hold circuitry eliminating external pull resistors.
It supports hot insertion via Ioff and power-up 3-state functionality, ensures low ground bounce (VOLP < 0.8 V), and uses distributed VCC/GND pins plus flow-through pinout to minimize switching noise and optimize signal integrity in high-speed parallel bus designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 3.6 V - enables stable operation under unregulated battery or low-noise LDO supplies |
| Max Clock Frequency | 160 MHz - supports high-throughput data latching in memory buffers and I/O port applications |
| Output Drive | ±12 mA - sufficient to directly drive terminated transmission lines or multiple CMOS loads without buffers |
| Input Voltage Range | –0.5 V to 5.5 V - allows 5-V TTL signal interfacing without level shifters in mixed-voltage systems |
| Propagation Delay | tPLH/tPHL ≤ 6.6 ns at VCC = 3.3 V - ensures tight timing margins in synchronous bus architectures |
| Bus-Hold Current | ±75 µA typical - actively maintains valid logic state on floating inputs, removing need for external biasing |
| Ioff Leakage | ±100 µA at VCC = 0 - prevents backdrive current during hot-swap or partial-power-down scenarios |
Pinout & Package
TSSOP-48 (DGG) package: 12.6 mm × 6.1 mm × 1.2 mm body, 0.5-mm lead pitch, gull-wing leads, RoHS-compliant NiPdAu finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE | Output enable (active-low) | Independent control of each 8-bit section's 3-state output drivers; does not affect internal latch state |
| 1CLK, 2CLK | Clock input (positive edge) | Edge-triggered sampling of D inputs; asynchronous to OE - data can be latched while outputs are high-Z |
| 1D1–1D8, 2D1–2D8 | Data inputs | All feature bus-hold circuitry; tolerate 5-V inputs at 3.3-V VCC without damage or level translation |
| 1Q1–1Q8, 2Q1–2Q8 | Registered outputs | 3-state capable; include 22-Ωseries resistance to suppress overshoot/undershoot on fast-switching buses |
| VCC, GND | Power and ground | Distributed across package (12× VCC, 12× GND) to reduce simultaneous switching noise and improve PSRR |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 22-Ωoutput series resistors | Eliminates need for external termination resistors on PCB traces, reducing BOM count and layout area |
| Mixed-mode signal operation | Accepts 5-V inputs while powered from 3.3-V rail - enables seamless interoperation between legacy TTL and modern low-voltage logic |
| Bus-hold on all data inputs | Maintains last-valid logic state when inputs float; removes requirement for external pullup/pulldown resistors and associated board space |
| Ioff and power-up 3-state | Prevents damaging current backflow during hot insertion and forces outputs to high-Z during power ramp-up/down - critical for modular backplane systems |
| Flow-through pinout architecture | Input-to-output signal path runs linearly across package (e.g., 1D1 → 1Q1), simplifying layer routing and minimizing trace crossovers |
Applications
| Industrial PLC I/O Module | Telecom Line Card Buffer |
|---|---|
Use Scenario: Isolating and latching digital status signals from field sensors and actuators in programmable logic controller racks. IC Role / Device Role / Timing Role: Acts as an input register capturing 16-bit parallel sensor data on rising CLK edge; OE controlled by microcontroller for bus arbitration. Use Value: Bus-hold eliminates external biasing on unterminated field wiring; 22-Ωoutputs reduce EMI on long backplane traces. |
Use Scenario: Temporarily storing configuration data from FPGA or DSP before loading into SERDES or PHY registers on telecom line cards. IC Role / Device Role / Timing Role: Functions as a 16-bit working register synchronized to system clock; dual OE allows independent read/write gating per byte lane. Use Value: 160-MHz operation matches high-speed control bus timing; 5-V tolerant inputs accept legacy management interface signals. |
| Automotive Body Control Gateway | Test Equipment Digital Pattern Generator |
Use Scenario: Interfacing microcontroller GPIOs to higher-voltage CAN/LIN transceiver control lines and lamp driver enable signals. IC Role / Device Role / Timing Role: Provides level-shifted, noise-immune buffering between 3.3-V MCU and 5-V automotive subsystems; OE used for fail-safe shutdown. Use Value: Ioff protection prevents backfeed during battery disconnect; distributed VCC/GND pins suppress switching noise in EMI-sensitive vehicle environments. |
Use Scenario: Generating precise, synchronized 16-bit stimulus patterns for IC functional testing on ATE platforms. IC Role / Device Role / Timing Role: Serves as pattern storage element clocked by precision test clock generator; outputs drive DUT inputs through controlled-impedance paths. Use Value: Low propagation delay variation (tsk(LH)/tsk(HL) ≤ 0.5 ns) ensures deterministic skew across all 16 bits; 3-state outputs allow shared bus access with other pattern sources. |
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 (±24 mA), no bus-hold, 1.65–3.6 V supply only, no 5-V input tolerance | Suitable for pure 3.3-V or lower-voltage systems; requires external pull resistors on unused inputs | Choose when cost sensitivity outweighs mixed-voltage interface needs and board space permits external biasing. |
| 74ALVCH162374TTR | Higher speed (200 MHz), same 3.3-V supply, but lacks Ioff and bus-hold; different pinout (TSSOP-48 variant) | Better for ultra-high-speed test equipment; unsuitable for hot-swap or floating-input industrial environments | Select only if timing margin is critical and system guarantees always-driven inputs and controlled power sequencing. |
Compared with SN74LVTH162374DGG, SN74LVC16374DGGR offers lower static power but sacrifices 5-V tolerance and bus-hold - increasing design complexity in mixed-signal systems; 74ALVCH162374TTR improves clock rate but removes key robustness features needed for industrial reliability.
Availability
SN74LVTH162374DGG is available at Aetrix Electronics and suitable for industrial PLC I/O modules, telecom line card buffers, automotive body control gateways, and ATE pattern generators requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for SN74LVTH162374DGG 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 experience in high-reliability industrial and automotive-grade components.
The SN74LVTH162374DGG belongs to TI's Widebus™ family of advanced bus-interface devices, engineered specifically for noise-resilient, high-speed parallel data transfer in mixed-voltage embedded systems.
FAQ
What is the maximum clock frequency supported by SN74LVTH162374DGG?
The SN74LVTH162374DGG supports a maximum clock frequency of 160 MHz across its full operating temperature range (–40°C to +85°C) and supply voltage range (2.7 V to 3.6 V). This value is specified under standard load conditions (CL = 50 pF) and confirmed in the Switching Characteristics table of the official datasheet. Timing parameters such as tSU and tH remain valid up to this frequency, making SN74LVTH162374DGG suitable for high-speed register and buffer applications in modern digital systems.
Does SN74LVTH162374DGG support 5-V input signals while operating at 3.3-V VCC?
Yes, SN74LVTH162374DGG explicitly supports 5-V tolerant inputs at 3.3-V VCC, with VI rated up to 5.5 V. This mixed-mode capability is enabled by its ABT process technology and is validated in both Absolute Maximum Ratings and Recommended Operating Conditions tables. The device safely interfaces with legacy 5-V TTL logic without external level shifters, and this behavior is guaranteed across temperature and voltage corners - a core feature distinguishing SN74LVTH162374DGG from standard LVC-family devices.
How does the bus-hold circuitry function on SN74LVTH162374DGG data inputs?
The bus-hold circuitry on SN74LVTH162374DGG actively maintains the last-valid logic state on each D input when left floating, drawing only ±75 µA typical hold current. It operates without external components and is enabled by default - no configuration is required. This eliminates the need for pullup or pulldown resistors on unterminated or intermittently driven lines, reducing BOM cost and PCB area. Importantly, bus-hold does not interfere with normal signal transitions and is fully characterized over temperature and voltage.
Can SN74LVTH162374DGG be used in hot-swap applications?
Yes, SN74LVTH162374DGG is explicitly designed for hot-insertion use cases via two complementary features: Ioff circuitry disables outputs when VCC = 0, preventing backdrive current, and power-up 3-state forces outputs into high-impedance during power ramp-up/down. These functions are production-tested and documented in the datasheet's Features and Description sections. When implemented with proper mechanical and thermal design, SN74LVTH162374DGG meets JEDEC JESD78 latch-up and JESD22 ESD requirements for reliable hot-swap operation.
What package type and dimensions does SN74LVTH162374DGG use?
SN74LVTH162374DGG uses the TSSOP-48 (DGG) package: 12.6 mm × 6.1 mm body size, 1.2 mm maximum height, 0.5-mm lead pitch, and gull-wing surface-mount leads. It is RoHS-compliant with NiPdAu lead finish and MSL Level-1 rating (unlimited floor life at ≤30°C/60% RH). Mechanical drawings, land patterns, and stencil recommendations are published by Texas Instruments under package code DGG0048A and conform to JEDEC MO-153 standards.
SN74LVTH162374DGG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVTH
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- 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):
- 5 mA
- Input Capacitance:
- 3 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
SN74LVTH162374DGG FAQ
1.How can I place an order for SN74LVTH162374DGG through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVTH162374DGG 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 SN74LVTH162374DGG reliable?
The price and inventory of SN74LVTH162374DGG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVTH162374DGG is usually 5 days.
3.What payment methods are accepted for SN74LVTH162374DGG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVTH162374DGG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVTH162374DGG?
SN74LVTH162374DGG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVTH162374DGG 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 SN74LVTH162374DGG?
For technical support, including SN74LVTH162374DGG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVTH162374DGG requirements.
6.How does Aetrix verify that SN74LVTH162374DGG is sourced from the original manufacturer or authorized distributors?
All SN74LVTH162374DGG 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 SN74LVTH162374DGG meets industry standards.
7.What is the process for return or replacement of SN74LVTH162374DGG?
All SN74LVTH162374DGG units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVTH162374DGG, 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 SN74LVTH162374DGG part is unused and in its original packaging.
Return procedure for SN74LVTH162374DGG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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