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Texas Instruments SN74LVTH16241DL
- Part No.:
- SN74LVTH16241DL
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
SN74LVTH16241DL.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,292
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Product details
Overview
SN74LVTH16241DL 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 four independent 4-bit sections, bus-hold on all data inputs, Ioff support for hot insertion, and operates from –40°C to 85°C. Used in high-speed backplane and memory interface applications requiring TTL-compatible drive strength at low voltage.
For engineers reviewing the SN74LVTH16241DL datasheet, SN74LVTH16241DL pinout, SN74LVTH16241DL application, or SN74LVTH16241DL equivalent, key selection criteria include 3.3-V VCC operation with 5-V tolerant inputs, ±64 mA output drive, bus-hold functionality eliminating external resistors, and SSOP-48 package compatibility with space-constrained PCB layouts.
Technical Context
This device implements Advanced BiCMOS Technology (ABT) to deliver TTL-level output swing and drive capability while operating from a 3.3-V supply. Its architecture includes complementary OE/OE control per 4-bit section, enabling independent 3-state management of four output groups.
The integrated bus-hold circuitry maintains valid logic states on floating inputs without external components, and the distributed VCC/GND pin layout minimizes switching noise. Power-up 3-state and Ioff protection ensure safe hot-insertion in live backplanes and modular systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - supports unregulated battery operation down to 2.7 V with full functionality. |
| IOL / IOH | 64 mA / –32 mA - delivers robust TTL-compatible drive into heavy capacitive loads or legacy 5-V buses. |
| VOH / VOL | ≥2.0 V / ≤0.55 V at IOL = 64 mA - ensures reliable logic-high and logic-low margins under full load. |
| tPLH / tPHL | 1.2 ns to 3.8 ns - enables >250 MHz data throughput in point-to-point or stub-bus configurations. |
| Bus-Hold Current | ±750 µA max - actively retains input state without pullup/pulldown resistors, reducing BOM count and layout complexity. |
| Ioff | ±100 µA at VCC = 0 - blocks damaging backflow current during hot-swap events or partial power-down. |
| Input Voltage Range | –0.5 V to 5.5 V - accepts 5-V CMOS/TTL signals directly while powered from 3.3 V, enabling seamless level translation. |
Pinout & Package
SN74LVTH16241DL is housed in a 48-pin Shrink Small-Outline Package (SSOP-DL), 12.6 mm × 6.2 mm × 1.95 mm body size, with 0.5-mm lead pitch and gull-wing leads. The package is RoHS-compliant, moisture sensitivity level 1, and rated for reflow up to 260°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-low output enable (per 4-bit group) | Individually disables Y1–Y4 outputs of corresponding A1–A4 section; OE must be pulled high for active drive. |
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 | Data inputs (16 total) | Accept 5-V-tolerant signals; internal bus-hold maintains last valid state if left floating. |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 | Noninverting buffered outputs (16 total) | Deliver rail-to-rail 3.3-V logic with ±64 mA sink/source capability; enter high-Z when OE = high. |
| VCC (Pins 7, 20, 31, 42) | Power supply | Distributed VCC pins reduce simultaneous switching noise and improve PDN stability across wide bus. |
| GND (Pins 4, 13, 24, 35) | Ground reference | Four dedicated GND pins symmetrically placed to minimize ground bounce and enhance signal integrity. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode 5-V input tolerance | Accepts 5-V logic levels with 3.3-V VCC - eliminates external level shifters in 3.3-V/5-V hybrid systems. |
| Integrated bus-hold | Removes need for 16 external pullup/pulldown resistors - saves board area, reduces assembly cost, and prevents floating-input metastability. |
| Hot-insertion support | Ioff and power-up 3-state prevent backdrive and bus contention during live module replacement - critical for telecom and server backplanes. |
| Flow-through pinout | Input and output pins arranged linearly across opposite sides - simplifies layer routing and minimizes trace crossovers in dense PCB layouts. |
| Distributed power/ground | Four VCC and four GND pins interleaved across package - lowers impedance of power delivery network and suppresses ground bounce below 0.8 V. |
Applications
| Backplane Data Buffering | Memory Interface Translation |
|---|---|
Use Scenario: Buffering address/data lines between a 3.3-V FPGA and legacy 5-V peripheral cards in a modular rack system. IC Role / Device Role / Timing Role: Noninverting 16-bit driver providing TTL-compatible drive strength and 5-V input tolerance to bridge voltage domains. Use Value: Enables direct connection without level shifters; bus-hold prevents glitches during card insertion/removal; 3.8 ns max propagation delay supports 200+ MHz bus timing. | Use Scenario: Interfacing a 3.3-V microcontroller to 5-V SRAM or Flash memory in industrial control HMI modules. IC Role / Device Role / Timing Role: Bidirectional buffer isolating MCU I/O from memory bus, with independent OE control per 4-bit segment. Use Value: Eliminates external termination resistors via bus-hold; ±64 mA drive ensures clean edges into 50-pF memory loads; SSOP-48 fits compact 2-layer PCBs. |
| Hot-Swappable Module Interface | High-Speed Test Equipment Bus |
Use Scenario: Signal conditioning in a PXI or VXI slot-card system where modules are inserted/removed under power. IC Role / Device Role / Timing Role: 3-state buffer with Ioff and power-up 3-state ensuring zero current backflow and no bus conflict during insertion. Use Value: Meets MIL-STD-883 ESD requirements (>2000 V); latch-up immunity >500 mA allows operation in noisy industrial environments. | Use Scenario: Driving parallel digital stimulus/response channels in automated test equipment with tight timing margins. IC Role / Device Role / Timing Role: Low-skew 16-bit fanout buffer synchronizing control signals across multiple DUT interfaces. Use Value: 0.5 ns max skew (tsk) ensures deterministic setup/hold; flow-through layout minimizes inter-channel trace length mismatch. |
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 bus-hold, 1.65–3.6 V VCC range | Suitable for lower-power, 3.3-V-only systems without 5-V interfacing needs | Select when cost and power are prioritized over 5-V tolerance and bus-hold. |
| SN74ALVCH16244VR | Higher speed (tPD < 2.8 ns), 1.65–3.6 V, no Ioff or bus-hold | Better for high-frequency clock distribution but lacks hot-swap safety features | Choose only if timing margin is critical and hot insertion is not required. |
Compared with SN74LVC16244ADGGR and SN74ALVCH16244VR, the SN74LVTH16241DL uniquely combines 5-V input tolerance, bus-hold, Ioff, and ±64 mA drive - making it the only option among the three qualified for mixed-voltage backplane buffering with hot-swap reliability.
Availability
SN74LVTH16241DL is available at Aetrix Electronics and suitable for backplane buffering, memory interface translation, hot-swappable module design, and high-speed test equipment requiring stable component supply, long-term lifecycle support, and consistent SSOP-48 packaging.
Supply support for SN74LVTH16241DL 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 SN74LVTH16241DL belongs to TI's Widebus™ family of advanced 3.3-V ABT buffers, engineered specifically for robust mixed-voltage system interfacing, hot-plug operation, and noise-immune backplane signal integrity.
FAQ
What is the maximum output drive capability of the SN74LVTH16241DL?
The SN74LVTH16241DL provides ±64 mA output drive per pin - 64 mA sink (IOL) and –32 mA source (IOH) - enabling direct interface with legacy 5-V TTL loads while operating from a 3.3-V supply. This specification is guaranteed over the full –40°C to 85°C temperature range and ensures robust signal integrity into 50-pF loads with minimal overshoot.
Does the SN74LVTH16241DL support hot insertion?
Yes, the SN74LVTH16241DL supports hot insertion via two integrated features: Ioff circuitry disables outputs when VCC = 0, preventing back-current flow, and power-up 3-state holds outputs in high-impedance during power ramp-up/down. These features are fully characterized per JESD78 and meet requirements for live backplane replacement in telecom and industrial systems.
Can the SN74LVTH16241DL accept 5-V inputs while powered from 3.3 V?
Yes, the SN74LVTH16241DL accepts input voltages up to 5.5 V regardless of VCC level - a core feature of its ABT process. When VCC = 3.3 V, VI can safely range from –0.5 V to 5.5 V, allowing direct connection to 5-V CMOS or TTL sources without external clamping or level-shifting circuitry.
What is the purpose of the bus-hold circuitry in the SN74LVTH16241DL?
The bus-hold circuitry in the SN74LVTH16241DL actively maintains the last valid logic state on each data input (A1–A16) when the input is floating or unterminated. With ±750 µA hold current, it eliminates the need for 16 external pullup/pulldown resistors - reducing BOM cost, PCB area, and potential signal integrity issues caused by resistor parasitics.
What package type and dimensions does the SN74LVTH16241DL use?
The SN74LVTH16241DL uses a 48-pin Shrink Small-Outline Package (SSOP-DL) measuring 12.6 mm × 6.2 mm × 1.95 mm with 0.5-mm lead pitch. It is RoHS-compliant, MSL Level-1 rated, and compatible with standard surface-mount reflow profiles up to 260°C peak temperature.
SN74LVTH16241DL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVTH
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 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-SSOP
SN74LVTH16241DL FAQ
1.How can I place an order for SN74LVTH16241DL through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVTH16241DL 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 SN74LVTH16241DL reliable?
The price and inventory of SN74LVTH16241DL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVTH16241DL is usually 5 days.
3.What payment methods are accepted for SN74LVTH16241DL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVTH16241DL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVTH16241DL?
SN74LVTH16241DL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVTH16241DL 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 SN74LVTH16241DL?
For technical support, including SN74LVTH16241DL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVTH16241DL requirements.
6.How does Aetrix verify that SN74LVTH16241DL is sourced from the original manufacturer or authorized distributors?
All SN74LVTH16241DL 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 SN74LVTH16241DL meets industry standards.
7.What is the process for return or replacement of SN74LVTH16241DL?
All SN74LVTH16241DL units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVTH16241DL, 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 SN74LVTH16241DL part is unused and in its original packaging.
Return procedure for SN74LVTH16241DL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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