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Texas Instruments SN74LVTH162241DL
- Part No.:
- SN74LVTH162241DL
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
SN74LVTH162241DL.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,364
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Product details
Overview
SN74LVTH162241DL from Texas Instruments is a 3.3-V ABT 16-bit noninverting buffer/driver with 3-state outputs, designed for mixed-mode TTL/3.3-V system interfacing. It features four independent 4-bit sections, bus-hold on all data inputs, and integrated 22-Ω output series resistors to suppress overshoot/undershoot - used in backplane and motherboard I/O expansion interfaces.
For engineers reviewing the SN74LVTH162241DL datasheet, SN74LVTH162241DL pinout, SN74LVTH162241DL application, or SN74LVTH162241DL 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, and guaranteed performance from –40°C to 85°C in DL-package SSOP-48.
Technical Context
This device implements an Advanced BiCMOS Technology (ABT) architecture optimized for low static power at 3.3 V while maintaining TTL-compatible input thresholds and drive strength. Each of its four 4-bit sections has complementary OE/!OE controls and noninverting logic paths, enabling flexible bus segmentation.
It supports unregulated battery operation down to 2.7 V, includes distributed VCC/GND pins to minimize switching noise, and uses flow-through pinout to simplify PCB routing. Bus-hold circuitry eliminates external pullup/pulldown resistors on floating inputs, and output ground bounce (VOLP) is specified at <0.8 V under typical conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - supports battery-backed and margin-tolerant 3.3-V systems |
| Input Voltage Tolerance | –0.5 V to 5.5 V - enables direct connection to 5-V logic without level shifters |
| Output Drive Strength | ±12 mA - sufficient to drive standard TTL loads and stubs on backplanes |
| Propagation Delay (tPLH/tPHL) | 1.3 ns (min) to 4.9 ns (max) at VCC = 3.3 V - ensures timing compliance in high-speed control buses |
| Bus-Hold Current | ±750 µA max - actively maintains valid logic state on unused inputs |
| Ioff Leakage | ±100 µA max at VCC = 0 - prevents backflow during hot insertion or partial power-down |
| Output Series Resistance | 22 Ω (integrated) - reduces EMI and eliminates need for external termination resistors |
Pinout & Package
SN74LVTH162241DL is housed in a 48-pin Shrink Small-Outline Package (SSOP-DL), 12.6 mm × 6.2 mm × 1.95 mm body, with 0.5-mm lead pitch and gull-wing leads. Pin 1 is marked by a beveled corner and located in Quadrant Q1 per tape-and-reel orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-low output enable (per 4-bit section) | Controls 3-state output of corresponding Y-group; low = enabled, high = high-Z |
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 | Data inputs (16 total) | Noninverting inputs feeding respective Y outputs; all feature bus-hold |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 | Buffered noninverting outputs (16 total) | Drive-strength-controlled outputs with integrated 22-Ω series resistance |
| VCC (Pins 7, 20, 31, 42) | Power supply | Distributed VCC pins reduce simultaneous switching noise and improve decoupling |
| GND (Pins 4, 15, 27, 39) | Ground reference | Distributed GND pins provide low-inductance return paths for each functional quadrant |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode signal operation | 5-V tolerant inputs with 3.3-V VCC enables seamless interface between legacy TTL and modern low-voltage subsystems |
| Integrated 22-Ω output series resistors | Eliminates need for 16 external termination resistors, reducing BOM count and layout area |
| Bus-hold on all data inputs | Prevents floating-input metastability without external biasing components, simplifying system bring-up |
| Hot-insertion support | Ioff and power-up 3-state prevent current backflow and bus contention during live board insertion |
| Flow-through pinout architecture | Input-to-output signal path traverses package linearly, minimizing trace crossovers and improving signal integrity |
Applications
| Backplane Data Buffering | Industrial PLC I/O Expansion |
|---|---|
Use Scenario: Isolating and driving parallel address/data lines between CPU module and peripheral cards in modular rack systems. IC Role / Device Role / Timing Role: Noninverting 16-bit buffer with per-section 3-state control enables selective card enablement and bidirectional bus management. Use Value: Integrated 22-Ω output resistors suppress reflections across long backplane traces, ensuring clean signal edges at up to 100 MHz. | Use Scenario: Interfacing 5-V sensor/actuator modules to a 3.3-V programmable logic controller mainboard. IC Role / Device Role / Timing Role: Level-translating buffer providing TTL-compatible input thresholds and 3.3-V compatible output swing. Use Value: 5-V input tolerance and ±12 mA drive allow direct connection to industrial field devices without discrete level-shifting circuitry. |
| Hot-Swappable Module Interface | Embedded Computing Memory Expansion |
Use Scenario: Enabling safe insertion/removal of daughterboards in telecom line cards powered from shared backplane rails. IC Role / Device Role / Timing Role: Hot-insertion–qualified buffer with Ioff and power-up 3-state prevents damage and bus conflicts during live swap. Use Value: Guaranteed high-impedance state during VCC ramp (0–1.5 V) avoids false triggering and latch-up risk in partial-power scenarios. | Use Scenario: Driving SRAM or Flash memory address/data buses in space-constrained embedded controllers. IC Role / Device Role / Timing Role: Low-propagation-delay (1.3 ns min) noninverting driver supporting fast memory access cycles. Use Value: Distributed VCC/GND pins and flow-through layout reduce simultaneous switching noise, improving memory read/write timing margins. |
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 | LVC family; 3.3-V only (no 5-V input tolerance); lower drive (±24 mA); no integrated series resistors | Suitable for pure 3.3-V systems where external termination is acceptable and higher drive is needed | Choose when cost sensitivity outweighs mixed-voltage interface needs and layout space allows external resistors |
| SN74ALVCH162244DLR | ALVCH family; supports 1.65–3.6 V VCC; no bus-hold; no integrated 22-Ω resistors; different pinout | Better for ultra-low-voltage operation but requires external biasing and termination | Select only if system operates below 2.7 V or demands wider VCC range; not drop-in compatible due to pinout and feature differences |
Compared with SN74LVC16244ADGGR and SN74ALVCH162244DLR, the SN74LVTH162241DL uniquely combines 5-V input tolerance, integrated 22-Ω termination, bus-hold, and hot-insertion support in a single 48-pin SSOP package - making it optimal for robust, mixed-voltage industrial backplane designs where reliability and BOM simplification are critical.
Availability
SN74LVTH162241DL is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, telecom backplane buffering, hot-swappable module interfaces, and embedded memory expansion requiring stable component supply across extended temperature ranges.
Supply support for SN74LVTH162241DL 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets.
The SN74LVTH162241DL belongs to TI's Widebus™ family of advanced bus-interface ICs, engineered specifically for high-reliability, mixed-voltage system interconnect in harsh industrial and telecom environments.
FAQ
What is the operating temperature range for the SN74LVTH162241DL?
The SN74LVTH162241DL is characterized for operation from –40°C to +85°C, meeting industrial-grade thermal requirements. This range is explicitly confirmed in the TI datasheet's Recommended Operating Conditions table and applies specifically to the DL-package variant. The device maintains full electrical specifications-including propagation delay, drive strength, and bus-hold functionality-across this entire range.
Does the SN74LVTH162241DL support hot insertion, and how is it implemented?
Yes, the SN74LVTH162241DL supports hot insertion via two integrated features: Ioff circuitry disables outputs when VCC = 0 V to prevent damaging current backflow, and power-up 3-state forces outputs into high-impedance during VCC ramp (0–1.5 V). These functions are inherent to the ABT process and verified in the datasheet's "Hot-Insertion Applications" section - no external circuitry is required to achieve compliant hot-swap behavior.
What does "bus-hold" mean for the SN74LVTH162241DL, and how strong is it?
Bus-hold on the SN74LVTH162241DL is an internal weak-latch circuit that maintains a valid logic state (high or low) on any unused or floating data input. Per the Electrical Characteristics table, it provides ±750 µA dynamic overdrive current - sufficient to override typical noise coupling but low enough to be overridden cleanly by a driven signal. This eliminates external pullup/pulldown resistors without compromising noise immunity.
Can the SN74LVTH162241DL be used with a 2.5-V supply?
No - the SN74LVTH162241DL is not specified for 2.5-V operation. Its recommended VCC range is strictly 2.7 V to 3.6 V, with absolute maximum ratings extending only to 4.6 V. Operation below 2.7 V risks failure to meet timing (e.g., tPLH/tPHL), drive strength (IOL/IOH), and bus-hold functionality. For 2.5-V systems, consider TI's ALVC or AUC families instead.
How many independent 3-state control groups does the SN74LVTH162241DL provide?
The SN74LVTH162241DL provides four independent 3-state control groups: one per 4-bit section (1OE/1Y, 2OE/2Y, 3OE/3Y, 4OE/4Y). Each group has dedicated active-low OE inputs and complementary OE bar inputs (not shown in pin table but documented in Function Tables), allowing granular bus partitioning - e.g., enabling only two 4-bit lanes while holding others in high-Z.
SN74LVTH162241DL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVTH
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 4
- Number of Bits per Element:
- 4
- 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-SSOP
SN74LVTH162241DL FAQ
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Please submit a Request for Quotation (RFQ) for SN74LVTH162241DL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
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The price and inventory of SN74LVTH162241DL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVTH162241DL is usually 5 days.
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For technical support, including SN74LVTH162241DL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVTH162241DL requirements.
6.How does Aetrix verify that SN74LVTH162241DL is sourced from the original manufacturer or authorized distributors?
All SN74LVTH162241DL 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 SN74LVTH162241DL meets industry standards.
7.What is the process for return or replacement of SN74LVTH162241DL?
All SN74LVTH162241DL units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVTH162241DL, 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 SN74LVTH162241DL part is unused and in its original packaging.
Return procedure for SN74LVTH162241DL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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