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Texas Instruments SN74LVTH162541DGGR
- Part No.:
- SN74LVTH162541DGGR
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
SN74LVTH162541DGGR.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,973
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Product details
Overview
SN74LVTH162541DGGR 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), 22-Ω integrated series output resistors, ±12 mA drive capability, and bus-hold on all data inputs. It operates from –40°C to 85°C in a 48-pin TSSOP package.
For engineers reviewing the SN74LVTH162541DGGR datasheet, SN74LVTH162541DGGR pinout, SN74LVTH162541DGGR application, or SN74LVTH162541DGGR equivalent, key selection criteria include its 3.3-V VCC operation with 5-V tolerant inputs, hot-insertion support via Ioff and power-up 3-state, distributed VCC/GND pinning for noise reduction, and flow-through architecture for optimized PCB layout.
Technical Context
This device implements an Advanced BiCMOS Technology (ABT) process optimized for low static power at 3.3-V supply while maintaining TTL-compatible voltage thresholds. Each 8-bit section uses two active-low output-enable inputs - both must be low for corresponding Y outputs to drive; either high forces high-impedance state.
It supports unregulated battery operation down to 2.7 V, includes bus-hold circuitry eliminating external pullup/pulldown resistors, and features distributed VCC and GND pins across the 48-pin TSSOP to minimize simultaneous switching noise. Power-up and power-down 3-state behavior ensures outputs remain high-Z when VCC is below 1.5 V or during ramp transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - enables stable operation under noisy or battery-derived supplies without regulation. |
| IOH/IOL | –12 mA / 12 mA - sufficient to directly drive standard TTL loads or interface with legacy 5-V buses. |
| VIH/VIL | 2.0 V / 0.8 V - compatible with both 3.3-V CMOS and 5-V TTL input thresholds. |
| tPLH/tPHL | 2.9 ns / 2.4 ns (typ @ 3.3 V) - supports high-speed data buffering in memory interfaces and backplane drivers. |
| Bus-Hold Current | ±750 µA max - actively holds floating inputs at valid logic levels, removing need for external biasing. |
| Output Series Resistor | 22 Ω (integrated) - reduces overshoot/undershoot without requiring discrete termination components. |
| Ioff | ±100 µA max @ VCC = 0 - prevents backflow current during hot insertion or partial power-down. |
Pinout & Package
TSSOP-48 (DGG) package: 12.6 mm × 6.2 mm × 1.2 mm max height, lead pitch 0.5 mm, NIPDAU lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE1, 1OE2, 2OE1, 2OE2 | Active-Low Output Enables | Independent control per 8-bit section; both enables low required for output drive; high forces high-Z. |
| 1A1–1A8, 2A1–2A8 | Data Inputs | Noninverting inputs with bus-hold; tolerate 5-V signals at 3.3-V VCC. |
| 1Y1–1Y8, 2Y1–2Y8 | 3-State Outputs | Drive up to ±12 mA with integrated 22-Ω series resistance for clean edge control. |
| VCC (Pins 7, 18, 29, 40) | Supply | Distributed power pins reduce IR drop and switching noise across wide bus. |
| GND (Pins 4, 10, 15, 21, 26, 31, 34, 42) | Ground | Eight dedicated ground connections improve return path integrity and EMI performance. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-Mode Signal Operation | 5-V-tolerant inputs and outputs with 3.3-V VCC enable seamless bridging between legacy and modern logic domains. |
| Integrated 22-Ω Output Resistors | Eliminate need for external series termination, reducing BOM count and PCB area in high-speed parallel interfaces. |
| Hot-Insertion Support | Ioff and power-up 3-state prevent damage and bus contention during live board replacement in telecom or server backplanes. |
| Flow-Through Pinout | Input-to-output signal path traverses package linearly (e.g., 1A1→1Y1, 1A2→1Y2), simplifying layer routing and minimizing trace crossovers. |
| Distributed VCC/GND Pins | Four VCC and eight GND pins placed across package edges suppress simultaneous switching noise in 16-bit data paths. |
Applications
| Memory Interface Buffering | Backplane Data Driver |
|---|---|
Use Scenario: Driving address/data lines between a 3.3-V FPGA and 5-V SRAM or Flash memory in embedded controllers. IC Role / Device Role / Timing Role: Noninverting 16-bit buffer providing level translation, drive strength, and bus isolation during read/write cycles. Use Value: Eliminates external level shifters and termination resistors while ensuring timing compliance via sub-3 ns propagation delay. | Use Scenario: Transmitting parallel status or configuration data across a 16-bit backplane in industrial PLC modules. IC Role / Device Role / Timing Role: High-drive 3-state driver enabling shared bus arbitration with multiple slot cards. Use Value: Bus-hold maintains valid logic on floating lines during card removal; Ioff prevents backfeeding into powered-down slots. |
| Hot-Swappable Module Interface | Legacy System Integration |
Use Scenario: Interfacing a 3.3-V microcontroller to a 5-V peripheral module in modular test equipment. IC Role / Device Role / Timing Role: Bidirectional-capable buffer (with direction control external) managing signal integrity during live insertion/removal. Use Value: Power-up 3-state prevents glitches; distributed grounding minimizes noise coupling into sensitive analog sections. | Use Scenario: Upgrading a 5-V ISA bus system with modern 3.3-V logic while retaining compatibility with existing peripherals. IC Role / Device Role / Timing Role: Voltage-tolerant buffer isolating new logic from legacy bus loading and noise. Use Value: 5-V input tolerance allows direct connection to legacy bus lines; 22-Ω outputs damp reflections without redesigning trace impedance. |
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), no integrated 22-Ω resistors, no bus-hold, 1.65–3.6 V VCC range. | Lacks 5-V tolerance and hot-insertion features; requires external termination and pullups. | Choose when cost sensitivity outweighs mixed-voltage robustness and board space is constrained. |
| SN74ALVCH162541GR | Higher speed (tPD ~1.8 ns), same pinout, but no integrated 22-Ω resistors and no bus-hold. | Requires external termination and biasing; not suitable for floating-input or hot-swap scenarios. | Prefer when maximum throughput is critical and system-level design accommodates external components. |
Compared with SN74LVC16244ADGGR and SN74ALVCH162541GR, the SN74LVTH162541DGGR uniquely combines 5-V tolerance, integrated termination, bus-hold, and hot-insertion support in a single 48-pin TSSOP - making it optimal for legacy-to-modern interface consolidation without layout or BOM changes.
Availability
SN74LVTH162541DGGR is available at Aetrix Electronics and suitable for memory subsystems, backplane interconnects, hot-swappable modules, and legacy system upgrades requiring stable component supply and long-term industrial availability.
Supply support for SN74LVTH162541DGGR 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.
The SN74LVTH162541DGGR belongs to TI's Widebus™ family of advanced bus-interface devices, engineered specifically for robust, low-noise, mixed-voltage data transfer in high-density digital systems.
FAQ
What is the operating temperature range for SN74LVTH162541DGGR?
The SN74LVTH162541DGGR is characterized for operation from –40°C to 85°C, meeting industrial-grade thermal requirements. This range is confirmed in TI's SCBS690F datasheet revision November 2006 and aligns with its qualification under JEDEC standards for commercial and extended-temperature applications. The SN74LVTH162541DGGR performs reliably across this full span without derating.
Does SN74LVTH162541DGGR support 5-V input signals while powered at 3.3 V?
Yes, the SN74LVTH162541DGGR supports 5-V-tolerant inputs with VCC = 3.3 V, as explicitly specified in the "Recommended Operating Conditions" table: VI (input voltage) is rated up to 5.5 V. This allows direct interfacing with 5-V TTL or LVTTL sources without external level-shifting circuitry. The SN74LVTH162541DGGR maintains valid logic thresholds (VIH = 2.0 V, VIL = 0.8 V) under this condition.
How does the bus-hold feature work on SN74LVTH162541DGGR?
The SN74LVTH162541DGGR integrates active bus-hold circuitry on all data inputs (1A1–1A8, 2A1–2A8), which applies ±750 µA of overdrive current to hold floating or unterminated inputs at their last-valid logic state. This eliminates the need for external pullup or pulldown resistors in systems with intermittent signal presence. The SN74LVTH162541DGGR's bus-hold current is specified in the Electrical Characteristics table and functions independently of OE state.
Can SN74LVTH162541DGGR be used in hot-swap applications?
Yes, the SN74LVTH162541DGGR is explicitly designed for hot-insertion use cases via two key features: Ioff circuitry disables outputs when VCC = 0, preventing damaging current backflow; and power-up 3-state ensures outputs remain high-impedance during VCC ramp-up/down. These capabilities are documented in TI's datasheet under "Features" and "Description", confirming safe operation in live-backplane or modular card systems using the SN74LVTH162541DGGR.
What is the pin pitch and package footprint of SN74LVTH162541DGGR?
The SN74LVTH162541DGGR uses a 48-pin TSSOP (DGG) package with 0.5 mm lead pitch, 12.6 mm × 6.2 mm body dimensions, and maximum height of 1.2 mm. Land pattern recommendations, stencil design guidelines, and mechanical drawings are published by TI under package code DGG0048A. The SN74LVTH162541DGGR's footprint is standardized per JEDEC MO-153 and compatible with automated SMT assembly processes.
SN74LVTH162541DGGR 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:
- 12mA, 12mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
SN74LVTH162541DGGR FAQ
1.How can I place an order for SN74LVTH162541DGGR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVTH162541DGGR 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 SN74LVTH162541DGGR reliable?
The price and inventory of SN74LVTH162541DGGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVTH162541DGGR is usually 5 days.
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SN74LVTH162541DGGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVTH162541DGGR 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 SN74LVTH162541DGGR?
For technical support, including SN74LVTH162541DGGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVTH162541DGGR requirements.
6.How does Aetrix verify that SN74LVTH162541DGGR is sourced from the original manufacturer or authorized distributors?
All SN74LVTH162541DGGR 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 SN74LVTH162541DGGR meets industry standards.
7.What is the process for return or replacement of SN74LVTH162541DGGR?
All SN74LVTH162541DGGR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVTH162541DGGR, 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 SN74LVTH162541DGGR part is unused and in its original packaging.
Return procedure for SN74LVTH162541DGGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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