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Texas Instruments SN74LVTH241IPWREP
- Part No.:
- SN74LVTH241IPWREP
- Manufacturer:
- Texas Instruments
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74LVTH241IPWREP.pdf
- Description:
- IC BUF NON-INVERT 3.6V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,147
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Product details
Overview
SN74LVTH241IPWREP from Texas Instruments is an octal noninverting buffer/driver with 3-state outputs, designed for 3.3-V VCC operation while supporting 5-V TTL input/output interfaces. It features bus-hold circuitry on data inputs, Ioff protection for hot insertion, and operates across −40°C to 85°C in a 20-pin TSSOP package. Used in mixed-voltage backplane and memory interface applications.
For engineers reviewing the SN74LVTH241IPWREP datasheet, SN74LVTH241IPWREP pinout, SN74LVTH241IPWREP application, or SN74LVTH241IPWREP equivalent, key selection criteria include 3.3-V supply compatibility with 5-V signal tolerance, bus-hold elimination of external resistors, hot-insertion support via Ioff and power-up 3-state, and guaranteed timing performance at 2.7–3.6 V.
Technical Context
This device implements two independent 4-bit noninverting buffers (1A→1Y and 2A→2Y), each controlled by dedicated output-enable inputs (1OE low-active, 2OE high-active). Its bus-hold circuitry actively maintains valid logic states on undriven inputs without external pullup/pulldown resistors.
The SN74LVTH241IPWREP integrates Ioff protection that disables outputs when VCC = 0 V, preventing backflow current during hot insertion, and power-up 3-state logic that forces outputs into high-impedance during VCC ramp from 0 to 1.5 V - critical for system-level bus arbitration and live-card replacement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - supports regulated and unregulated battery supplies down to 2.7 V without functional degradation. |
| Input Voltage Tolerance | −0.5 V to 7 V - enables direct interfacing with 5-V TTL logic without level shifters. |
| tPLH / tPHL | 1.1 ns (min) to 3.5 ns (max) at VCC = 3.3 V - ensures sub-4 ns propagation delay for high-speed data buffering. |
| IOL / IOH | 64 mA sink / −32 mA source - drives standard TTL loads and multiple CMOS inputs under worst-case conditions. |
| Bus-Hold Current | ±75 µA at VCC = 3 V - provides sufficient overdrive margin to reliably switch held inputs between logic states. |
| IOFF Leakage | ±100 µA at VCC = 0 V - limits backfeed current during hot-swap events to safe levels per JESD78. |
| Operating Temperature | −40°C to +85°C - qualified per enhanced military-grade pedigree including HAST, temperature cycling, and electromigration testing. |
Pinout & Package
Package: 20-pin TSSOP (PW), 0.65 mm pitch, JEDEC MO-153 compliant, body size 6.5 mm × 4.4 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE | Active-low output enable for Y1–Y4 | Drives outputs 1Y1–1Y4 into high-Z when high; must be pulled up for default disable during power-up. |
| 2OE | Active-high output enable for Y1–Y4 | Drives outputs 2Y1–2Y4 into high-Z when low; requires pulldown for safe power-down state. |
| 1A1–1A4, 2A1–2A4 | Data inputs | All feature integrated bus-hold; no external biasing required unless overriding hold behavior. |
| 1Y1–1Y4, 2Y1–2Y4 | Noninverting buffered outputs | Each capable of 64 mA sink; outputs enter high-Z simultaneously upon OE assertion. |
| VCC, GND | Power supply terminals | Single 3.3-V supply rail; decoupling capacitor (0.1 µF) required within 10 mm of pins 11 and 10 respectively. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode signal operation | Accepts 5-V TTL inputs and delivers 5-V compatible outputs while powered from 3.3 V - eliminates level translators in legacy-to-modern voltage domain bridges. |
| Hot-insertion support | Ioff and power-up 3-state prevent bus contention and backdrive damage when inserting/removing boards into live backplanes. |
| Integrated bus-hold | Eliminates need for 10-kΩ external pullup/pulldown resistors on all eight data inputs - reduces BOM count and PCB area. |
| Output ground bounce control | VOLP < 0.8 V at VCC = 3.3 V - minimizes switching noise coupling into shared ground planes in dense digital systems. |
| Latch-up immunity | Exceeds 500 mA per JESD17 - ensures robustness against transient overvoltage and ESD-induced latch-up in industrial environments. |
Applications
| Backplane Interface | Memory Subsystem Buffering |
|---|---|
Use Scenario: Interfacing 3.3-V FPGA I/O banks to legacy 5-V peripheral cards in modular telecom chassis. IC Role / Device Role / Timing Role: Level-translating octal buffer providing bidirectional signal integrity and hot-swap isolation between voltage domains. Use Value: Enables drop-in replacement of obsolete 5-V buffers without redesigning power delivery or adding discrete level shifters. | Use Scenario: Driving address/data lines from a 3.3-V microcontroller to multiple 5-V SRAM devices on a shared bus. IC Role / Device Role / Timing Role: Noninverting driver with bus-hold maintaining stable bus states during controller reset or sleep transitions. Use Value: Prevents floating bus lines from inducing spurious writes or read corruption during idle periods - no external termination needed. |
| Industrial PLC I/O Module | Test Equipment Signal Conditioning |
Use Scenario: Isolating field-side 5-V sensor/actuator signals from 3.3-V controller logic in programmable logic controllers. IC Role / Device Role / Timing Role: Robust interface buffer with ±2000-V HBM ESD rating and latch-up immunity for harsh factory-floor environments. Use Value: Survives repeated electrostatic discharge events and voltage transients without latch-up or parameter drift over 10+ year service life. | Use Scenario: Conditioning digital stimulus/response signals between 3.3-V ATE controller and 5-V DUTs during automated functional test. IC Role / Device Role / Timing Role: Precision timing buffer with sub-4 ns propagation delay matching and monotonic edge control. Use Value: Maintains tight setup/hold margins across temperature and voltage corners - critical for pass/fail decision accuracy at 100+ MHz test rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVT241PWRE | No bus-hold; requires external pullup/pulldown resistors on all inputs. | Suitable only where board space allows discrete biasing and system guarantees defined input states. | Select when lower static current (ICC = 0.19 mA vs. 0.25 mA) and cost reduction outweigh bus-hold convenience. |
| SN74LVCH244APWRE | Octal noninverting buffer with dual VCC (1.65–3.6 V), but no 5-V tolerant inputs - max VI = 3.6 V. | Restricted to pure 3.3-V or lower systems; incompatible with 5-V TTL signaling. | Choose only for new designs fully migrated to 3.3-V logic families - avoids over-specification and reduces supply complexity. |
Compared with SN74LVT241PWRE and SN74LVCH244APWRE, the SN74LVTH241IPWREP uniquely combines 5-V input tolerance, integrated bus-hold, and hot-insertion support - making it the sole option for retrofitting legacy 5-V buses with modern low-voltage controllers without layout changes or additional components.
Availability
SN74LVTH241IPWREP is available at Aetrix Electronics and suitable for industrial automation, aerospace avionics, and telecommunications infrastructure requiring stable component supply across extended temperature and lifecycle requirements.
Supply support for SN74LVTH241IPWREP 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 over 50 years of innovation in high-reliability interface and signal-path components.
The SN74LVTH241IPWREP belongs to TI's enhanced-product (EP) logic family, engineered for mission-critical applications demanding extended temperature operation, DMS support, and qualification to military-grade reliability standards.
FAQ
What is the maximum input voltage the SN74LVTH241IPWREP can tolerate on its data pins?
The SN74LVTH241IPWREP supports input voltages from −0.5 V to 7 V on all data and control inputs, enabling direct connection to 5-V TTL logic while operating from a 3.3-V supply. This specification is verified per absolute maximum ratings in SCBS767 and applies across the full −40°C to 85°C operating range without derating.
Does the SN74LVTH241IPWREP require external pullup or pulldown resistors on its inputs?
No - the SN74LVTH241IPWREP integrates active bus-hold circuitry on all eight data inputs (1A1–1A4, 2A1–2A4), which maintains valid logic states without external resistors. TI explicitly warns against using pullup/pulldown resistors with this feature, as they may interfere with bus-hold functionality and increase power consumption.
How does the SN74LVTH241IPWREP support hot insertion in live backplane systems?
The SN74LVTH241IPWREP supports hot insertion through two complementary mechanisms: Ioff circuitry disables outputs when VCC = 0 V to prevent backdrive current, and power-up 3-state forces outputs into high-impedance during VCC ramp from 0 to 1.5 V. Both features are tested per JESD78 and documented in the functional description of SCBS767.
What is the propagation delay performance of the SN74LVTH241IPWREP at minimum supply voltage?
At VCC = 2.7 V, the SN74LVTH241IPWREP guarantees tPLH and tPHL up to 3.9 ns and 3.6 ns respectively (CL = 50 pF), with typical values of 2.3 ns and 2.2 ns. These values are specified in the switching characteristics table of SCBS767 and ensure reliable operation even under brownout conditions.
Is the SN74LVTH241IPWREP pin-compatible with standard 74-series octal buffers like the 74LS241?
No - the SN74LVTH241IPWREP uses a 20-pin TSSOP (PW) package with a unique pinout optimized for signal integrity and thermal performance, differing from the 20-pin DIP or SOIC layouts of legacy 74LS241. While functionally equivalent as an octal noninverting buffer with dual OE control, mechanical and routing compatibility requires verification against the PW package drawing (SLMA002) and not legacy footprints.
SN74LVTH241IPWREP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVTH
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- 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:
- 20-TSSOP
SN74LVTH241IPWREP FAQ
1.How can I place an order for SN74LVTH241IPWREP through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVTH241IPWREP 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 SN74LVTH241IPWREP reliable?
The price and inventory of SN74LVTH241IPWREP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVTH241IPWREP is usually 5 days.
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SN74LVTH241IPWREP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVTH241IPWREP 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 SN74LVTH241IPWREP?
For technical support, including SN74LVTH241IPWREP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVTH241IPWREP requirements.
6.How does Aetrix verify that SN74LVTH241IPWREP is sourced from the original manufacturer or authorized distributors?
All SN74LVTH241IPWREP 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 SN74LVTH241IPWREP meets industry standards.
7.What is the process for return or replacement of SN74LVTH241IPWREP?
All SN74LVTH241IPWREP units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVTH241IPWREP, 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 SN74LVTH241IPWREP part is unused and in its original packaging.
Return procedure for SN74LVTH241IPWREP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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