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Texas Instruments SN74LVTH16541DGGR
- Part No.:
- SN74LVTH16541DGGR
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
SN74LVTH16541DGGR.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,388
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Product details
Overview
SN74LVTH16541DGGR from Texas Instruments is a 3.3-V ABT 16-bit noninverting buffer/driver with 3-state outputs, designed for mixed-mode interfacing between 3.3-V logic and 5-V systems. It features dual 8-bit sections with independent output-enable controls (1OE1/1OE2 and 2OE1/2OE2), bus-hold circuitry on all data inputs, and Ioff support for hot insertion. Used in high-speed backplane and memory interface applications requiring TTL-compatible drive at low voltage.
For engineers reviewing the SN74LVTH16541DGGR datasheet, SN74LVTH16541DGGR pinout, SN74LVTH16541DGGR application, or SN74LVTH16541DGGR equivalent, key selection criteria include 3.3-V VCC operation with 5-V tolerant inputs, ±64 mA output drive capability, sub-4 ns propagation delay at 3.3 V, bus-hold functionality eliminating external resistors, and TSSOP-48 packaging for high-density PCB layouts.
Technical Context
This device implements Advanced BiCMOS Technology (ABT) to achieve low static power dissipation while delivering TTL-level output swing and 5-V input tolerance at 3.3-V supply. Each 8-bit section operates independently: both OE inputs per section must be low to enable outputs; either high forces high-impedance state.
It supports unregulated battery operation down to 2.7 V, includes distributed VCC/GND pins to suppress switching noise, and features flow-through pin architecture for optimized signal routing. Power-up 3-state and Ioff circuitry ensure safe hot-insertion by disabling outputs during power transitions and preventing backflow current when powered down.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - enables stable operation across wide battery discharge profiles and noisy supply rails. |
| IOL / IOH | 64 mA / –32 mA - drives heavy capacitive loads (e.g., 50-pF buses) without signal degradation. |
| tPLH / tPHL | 2.4 ns / 2.0 ns (typ, VCC = 3.3 V) - supports >200 MHz data rates in point-to-point or stub-bus topologies. |
| VI Input Range | –0.5 V to 5.5 V - accepts standard 5-V TTL logic levels while powered from 3.3 V, enabling seamless level translation. |
| Bus-Hold Current | ±75 µA (min) - actively holds floating inputs at valid logic states, removing need for external pullup/pulldown resistors. |
| IOZL / IOZH | –5 µA / +5 µA - ensures minimal leakage in 3-state mode, critical for low-power standby and multi-drop bus integrity. |
| Operating Temp | –40°C to +85°C - qualified for industrial-grade embedded systems including communications infrastructure and test equipment. |
Pinout & Package
TSSOP-48 (DGG) package: 12.6 mm × 6.2 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 |
|---|---|---|
| 1OE1, 1OE2, 2OE1, 2OE2 | Section output-enable controls | Active-low enables for two independent 8-bit buffers; any OE high disables corresponding Y outputs to high-Z. |
| 1A1–1A8, 2A1–2A8 | Data inputs | 16 total inputs with integrated bus-hold; no external biasing required for unused lines. |
| 1Y1–1Y8, 2Y1–2Y8 | Noninverting buffered outputs | 16 TTL-compatible outputs capable of sourcing/sinking up to 32 mA/64 mA respectively at 3.3 V. |
| VCC (Pins 7, 18, 29, 40) | Power supply | Distributed VCC pins minimize IR drop and ground bounce across high-speed switching events. |
| GND (Pins 4, 11, 22, 33, 44) | Ground reference | Five GND pins provide low-inductance return paths, reducing simultaneous switching noise in 16-bit parallel interfaces. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode 5-V input tolerance | Accepts 0–5.5 V inputs while operating at 3.3 V VCC - eliminates external level shifters in 3.3/5-V hybrid systems. |
| Bus-hold on all data inputs | Eliminates need for 10-kΩ external pullup/pulldown resistors on unused or unterminated inputs, saving BOM cost and board space. |
| Hot-insertion support | Ioff and power-up 3-state prevent backdrive current and bus contention during live card insertion into powered backplanes. |
| Flow-through pin architecture | Input and output pins arranged opposite each other (e.g., 1A1 ↔ 1Y1) - simplifies layer stacking and reduces trace crossovers in dense PCB layouts. |
| Distributed power/ground | Four VCC and five GND pins evenly spaced across package - lowers impedance path for transient currents, improving signal integrity at >100 MHz. |
Applications
| Backplane Interface | Memory Subsystem Buffer |
|---|---|
|
Use Scenario: Interfacing a 3.3-V FPGA or ASIC to legacy 5-V peripheral cards via passive backplane. IC Role / Device Role / Timing Role: Noninverting 16-bit buffer providing level translation, drive strength, and bus isolation between domains. Use Value: Enables direct connection without discrete level shifters; 64-mA sink capability drives long traces and multiple TTL loads reliably. |
Use Scenario: Driving address/data lines from a low-voltage microcontroller to SRAM or Flash memory with 5-V I/O requirements. IC Role / Device Role / Timing Role: Output driver buffering control/address signals with sub-4 ns propagation delay to meet memory timing budgets. Use Value: Maintains setup/hold margins under load; bus-hold prevents floating inputs during memory access gaps, avoiding spurious reads/writes. |
| Industrial PLC I/O Module | Test Equipment Signal Conditioning |
|
Use Scenario: Isolating and strengthening digital I/O signals in programmable logic controller modules operating in electrically noisy factory environments. IC Role / Device Role / Timing Role: 3-state buffer enabling shared bus arbitration between CPU and field I/O expansion cards. Use Value: High noise immunity (VIL = 0.8 V, VIH = 2.0 V) and latch-up resistance (>500 mA) ensure robust operation near motors and relays. |
Use Scenario: Conditioning parallel data paths in automated test equipment where signals traverse long cables and switch between instruments. IC Role / Device Role / Timing Role: Signal repeater and fanout buffer minimizing skew and maintaining edge fidelity across 16-bit data words. Use Value: Matched tPLH/tPHL (<0.5 ns skew) and low VOLP (<0.8 V) preserve logic thresholds over cable-induced attenuation and reflections. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16244ADGGR | Lower drive (24 mA sink), no 5-V input tolerance, LVC logic family (not ABT). | Suitable only for pure 3.3-V systems; cannot interface to 5-V peripherals without external translation. | Select when cost and power are prioritized over mixed-voltage compatibility and higher drive strength. |
| 74ALVCH162244DLR | Higher speed (tPD ≈ 2.1 ns), same 3.3-V operation, but lacks bus-hold and Ioff support. | Requires external pullups on unused inputs; not rated for hot insertion or unregulated battery use. | Choose for maximum speed in controlled, fully terminated 3.3-V environments where bus-hold is unnecessary. |
Compared with SN74LVC16244ADGGR and 74ALVCH162244DLR, the SN74LVTH16541DGGR uniquely combines 5-V input tolerance, bus-hold, Ioff, and 64-mA drive in a single 3.3-V buffer - making it the only option for robust hot-pluggable, mixed-voltage 16-bit bus interfacing without added components.
Availability
SN74LVTH16541DGGR is available at Aetrix Electronics and suitable for industrial PLCs, test equipment, memory subsystems, and backplane interface designs requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for SN74LVTH16541DGGR 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 ICs and widebus architectures.
The SN74LVTH16541DGGR belongs to TI's Widebus™ ABT logic family, engineered specifically for high-speed, low-voltage 16-bit bus interfacing in mixed-signal industrial and communications systems where signal integrity and voltage translation are critical.
FAQ
What is the maximum operating temperature range for the SN74LVTH16541DGGR?
The SN74LVTH16541DGGR is specified for operation from –40°C to +85°C, qualifying it for industrial-grade applications such as programmable logic controllers, factory automation systems, and outdoor test instrumentation where ambient temperatures exceed commercial limits. This range is confirmed in TI's official SCBS691E datasheet revision November 2006 and verified in TI's packaging addendum dated November 2025.
Does the SN74LVTH16541DGGR support hot insertion, and how is it implemented?
Yes, the SN74LVTH16541DGGR supports hot insertion via two integrated features: Ioff circuitry disables outputs when VCC = 0 V, preventing damaging back-current flow; and power-up 3-state ensures outputs remain in high-impedance until VCC exceeds 1.5 V. These functions are explicitly documented in the "Features" and "Description" sections of the TI datasheet SCBS691E, enabling safe live insertion into powered backplanes or carrier cards.
Can the SN74LVTH16541DGGR interface directly with 5-V logic devices?
Yes, the SN74LVTH16541DGGR accepts input voltages up to 5.5 V while operating at 3.3 V VCC, allowing direct connection to 5-V TTL outputs without external level shifters. This 5-V input tolerance is guaranteed across the full operating temperature range and is a defining feature of TI's ABT logic family, as stated in the "Recommended Operating Conditions" table of SCBS691E.
What is the purpose of bus-hold circuitry on the SN74LVTH16541DGGR inputs?
The bus-hold circuitry on all 16 data inputs of the SN74LVTH16541DGGR actively maintains unused or floating inputs at their last-valid logic state using ±75 µA dynamic hold current. This eliminates the need for external 10-kΩ pullup or pulldown resistors, reducing BOM count, PCB area, and potential signal integrity issues - a key advantage highlighted in TI's "Features" list and electrical characteristics table.
What package type and dimensions does the SN74LVTH16541DGGR use?
The SN74LVTH16541DGGR uses a 48-pin Thin Shrink Small-Outline Package (TSSOP-DGG) measuring 12.6 mm × 6.2 mm × 1.2 mm max height, with 0.5-mm lead pitch and gull-wing leads. Its mechanical drawing DGG0048A and tape-and-reel specifications (2000 units per reel, quadrant Q1 orientation) are published in TI's PACKAGE OUTLINE and PACKAGING INFORMATION documents dated August 2026.
SN74LVTH16541DGGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVTH
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 32mA, 64mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
SN74LVTH16541DGGR FAQ
1.How can I place an order for SN74LVTH16541DGGR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVTH16541DGGR 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 SN74LVTH16541DGGR reliable?
The price and inventory of SN74LVTH16541DGGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVTH16541DGGR is usually 5 days.
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SN74LVTH16541DGGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVTH16541DGGR 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 SN74LVTH16541DGGR?
For technical support, including SN74LVTH16541DGGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVTH16541DGGR requirements.
6.How does Aetrix verify that SN74LVTH16541DGGR is sourced from the original manufacturer or authorized distributors?
All SN74LVTH16541DGGR 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 SN74LVTH16541DGGR meets industry standards.
7.What is the process for return or replacement of SN74LVTH16541DGGR?
All SN74LVTH16541DGGR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVTH16541DGGR, 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 SN74LVTH16541DGGR part is unused and in its original packaging.
Return procedure for SN74LVTH16541DGGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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