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Texas Instruments SN74LVTH16241DLR
- Part No.:
- SN74LVTH16241DLR
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
SN74LVTH16241DLR.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,204
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Product details
Overview
SN74LVTH16241DLR 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 with VCC = 2.7–3.6 V. Used in backplane transceivers and memory address drivers.
For engineers reviewing the SN74LVTH16241DLR datasheet, SN74LVTH16241DLR pinout, SN74LVTH16241DLR application, or SN74LVTH16241DLR equivalent, key selection criteria include 3-state enable control architecture, 64-mA low-level output drive at 3.3 V, bus-hold input retention, distributed VCC/GND layout, and SSOP-48 package compatibility with high-density PCB routing.
Technical Context
This device implements Advanced BiCMOS Technology (ABT) for low static power and TTL-compatible interface capability. Each of its four 4-bit sections has complementary OE/OE controls enabling independent 3-state management, and bus-hold circuitry eliminates external pull resistors on all 16 A-inputs and 16 Y-outputs.
The flow-through pinout minimizes signal crosstalk and supports clean trace routing, while distributed VCC and GND pins reduce simultaneous switching noise. Power-up 3-state ensures outputs remain high-impedance during VCC ramp from 0 to 1.5 V, and Ioff limits reverse current when powered down.
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 without functional degradation |
| IOL / IOH | 64 mA / –32 mA at VCC = 3.3 V - drives standard TTL loads directly without external buffers |
| tPLH / tPHL | 1.2 ns to 3.8 ns (typ/max) - enables >250-MHz data throughput in point-to-point bus applications |
| Bus-Hold Current | ±750 µA max - maintains valid logic state on floating inputs without external biasing components |
| IOFF | ±100 µA at VCC = 0 - prevents damaging backflow current during hot-swap or partial-power-down scenarios |
| Input Voltage Range | –0.5 V to 5.5 V - accepts 5-V TTL signals safely while operating on 3.3-V supply |
| θJA | 94 °C/W (DL package) - defines thermal derating for continuous 16-bit switching in industrial ambient |
Pinout & Package
SN74LVTH16241DLR is housed in a 48-pin Shrink Small-Outline Package (SSOP-DL), 12.6 mm × 6.2 mm × 1.2 mm body, with 0.5-mm lead pitch and gull-wing terminations. Pin 1 marked via corner chamfer; moisture sensitivity level 1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-low output-enable control per 4-bit section | Independent 3-state gating for each quadrant; OE and OE are complementary |
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 | Data inputs (16 total) | All feature integrated bus-hold; no external pullup/pulldown required |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 | Noninverting buffered outputs (16 total) | Drive-strength matched across all outputs; VOL ≤ 0.55 V at 64 mA |
| VCC (Pins 7, 18, 31, 42) | Power supply | Distributed placement reduces IR drop and switching noise on 3.3-V rail |
| GND (Pins 4, 15, 28, 39) | Ground reference | Four dedicated ground pins minimize return-path inductance for high-speed edges |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode voltage tolerance | 5-V-tolerant inputs/outputs with 3.3-V VCC - enables direct connection to legacy 5-V buses without level shifters |
| Hot-insertion support | Ioff + power-up 3-state - allows safe board replacement in live backplanes without system reset |
| Flow-through pinout | Input–output alignment across top/bottom edges - simplifies layer stacking and reduces vias in dense routing |
| Output ground bounce (VOLP) | <0.8 V typical at VCC = 3.3 V - mitigates signal integrity issues in multi-driver parallel buses |
| Latch-up immunity | >500 mA per JESD17 - ensures robustness against transient overvoltage events in industrial environments |
Applications
| Memory Address Buffering | Backplane Transceiver Interface |
|---|---|
Use Scenario: Driving address lines from a 3.3-V microcontroller to multiple 5-V SRAM or Flash devices on a shared bus. IC Role / Device Role / Timing Role: Noninverting 16-bit buffer with 3-state control synchronizing address propagation across memory banks. Use Value: Eliminates need for discrete level shifters; bus-hold retains last valid address during chip-select transitions. | Use Scenario: Interfacing a 3.3-V FPGA I/O bank to a 5-V backplane carrying parallel control/status signals. IC Role / Device Role / Timing Role: Voltage-translating driver providing bidirectional 3-state isolation between domains. Use Value: Withstands 5-V fault conditions on outputs; Ioff prevents backfeed into FPGA during hot-swap maintenance. |
| Industrial PLC I/O Expansion | Test Equipment Signal Conditioning |
Use Scenario: Expanding digital I/O count on a programmable logic controller using modular daughterboards. IC Role / Device Role / Timing Role: 16-bit buffer isolating field-side 5-V logic from 3.3-V controller logic with noise-suppressing layout. Use Value: Distributed VCC/GND pins reduce simultaneous switching noise; latch-up immunity meets IEC 61000-4-2 requirements. | Use Scenario: Conditioning parallel data paths in automated test equipment where signal integrity and timing skew matter. IC Role / Device Role / Timing Role: Low-skew, matched-delay buffer ensuring deterministic setup/hold margins across 16-bit data lanes. Use Value: tsk(LH)/tsk(HL) ≤ 0.5 ns guarantees sub-nanosecond inter-channel skew for synchronized sampling. |
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 only for 3.3-V-only systems; requires external pull resistors on unused inputs | Select when cost and power are prioritized over 5-V tolerance and bus-hold convenience |
| SN74ALVCH16244VR | Higher speed (tPD ≤ 2.8 ns), same 3.3-V operation, no 5-V tolerance | Not compatible with 5-V signaling; lacks Ioff and bus-hold features | Choose for maximum throughput in fully 3.3-V designs where hot-swap is not required |
Compared with SN74LVTH16241DLR, SN74LVC16244ADGGR trades 5-V interface capability and bus-hold for lower static current and cost, while SN74ALVCH16244VR offers faster propagation but sacrifices mixed-voltage robustness and hot-insertion safety - making SN74LVTH16241DLR uniquely suited for legacy-system upgrades and field-replaceable modules.
Availability
SN74LVTH16241DLR is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, memory subsystem buffering, and backplane transceiver interfacing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74LVTH16241DLR 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 delivering analog and embedded processing solutions, with leadership in logic, interface, and power management ICs since 1930.
SN74LVTH16241DLR belongs to TI's Widebus™ family of advanced bus-interface devices, engineered specifically for reliable 3.3-V operation in mixed-voltage systems with emphasis on hot-swap readiness, noise immunity, and PCB-layout efficiency.
FAQ
What is the recommended operating voltage range for SN74LVTH16241DLR?
The SN74LVTH16241DLR is specified to operate over a VCC range of 2.7 V to 3.6 V. This allows stable functionality under unregulated battery supply conditions down to 2.7 V. Operation outside this range may result in undefined behavior or damage; absolute maximum VCC is 4.6 V. The SN74LVTH16241DLR maintains full logic performance and output drive strength across the entire recommended range.
Does SN74LVTH16241DLR support hot-plug insertion in live backplanes?
Yes, SN74LVTH16241DLR supports hot insertion via dual protection mechanisms: Ioff circuitry disables outputs when VCC = 0, preventing reverse current flow, and power-up 3-state holds outputs in high-impedance until VCC exceeds 1.5 V. These features are production-tested per JEDEC standards and make SN74LVTH16241DLR suitable for modular telecom and industrial backplane applications where field-replaceable units are inserted under power.
How does the bus-hold feature work on SN74LVTH16241DLR inputs?
The SN74LVTH16241DLR integrates active bus-hold circuitry on all 16 data inputs (A1–A16), which applies ±750 µA dynamic current to retain the last-valid logic state when inputs float. This eliminates the need for external pullup or pulldown resistors in unterminated stubs or unused channels. Bus-hold activation is automatic and requires no configuration; it functions across the full –40°C to 85°C temperature range and 2.7–3.6 V VCC range.
Can SN74LVTH16241DLR interface directly with 5-V TTL logic?
Yes, SN74LVTH16241DLR accepts 5-V input signals and drives 5-V loads while operating from a 3.3-V VCC supply. Its inputs tolerate up to 5.5 V, and outputs deliver TTL-compatible VOH/VOL levels (e.g., VOH ≥ 2.0 V at –32 mA, VOL ≤ 0.55 V at 64 mA). This mixed-mode capability is inherent to the ABT process and does not require external level-shifting components - a core design objective confirmed in the device's official description and electrical characteristics tables.
What package type and dimensions does SN74LVTH16241DLR use?
SN74LVTH16241DLR uses the DL package: a 48-pin Shrink Small-Outline Package (SSOP) measuring 12.6 mm × 6.2 mm × 1.2 mm with 0.5-mm lead pitch. It is supplied in tubes of 25 units. The DL package features gull-wing leads, moisture sensitivity level 1 (MSL-1), and is RoHS-compliant with NiPdAu lead finish. Mechanical drawings and land patterns are published by Texas Instruments under package code DL.
SN74LVTH16241DLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVTH
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 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
SN74LVTH16241DLR FAQ
1.How can I place an order for SN74LVTH16241DLR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVTH16241DLR 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 SN74LVTH16241DLR reliable?
The price and inventory of SN74LVTH16241DLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVTH16241DLR is usually 5 days.
3.What payment methods are accepted for SN74LVTH16241DLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVTH16241DLR transactions.
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4.How is shipping managed for SN74LVTH16241DLR?
SN74LVTH16241DLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVTH16241DLR 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 SN74LVTH16241DLR?
For technical support, including SN74LVTH16241DLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVTH16241DLR requirements.
6.How does Aetrix verify that SN74LVTH16241DLR is sourced from the original manufacturer or authorized distributors?
All SN74LVTH16241DLR 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 SN74LVTH16241DLR meets industry standards.
7.What is the process for return or replacement of SN74LVTH16241DLR?
All SN74LVTH16241DLR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVTH16241DLR, 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 SN74LVTH16241DLR part is unused and in its original packaging.
Return procedure for SN74LVTH16241DLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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