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Texas Instruments SN74LVT162240DL
- Part No.:
- SN74LVT162240DL
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
SN74LVT162240DL.pdf
- Description:
- IC BUFFER INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:325
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Product details
Overview
SN74LVT162240DL from Texas Instruments is a 3.3-V ABT 16-bit inverting buffer/driver with 3-state outputs, designed for memory address, clock, and bus interface applications. It features four independent 4-bit sections, symmetrical active-low output-enable (OE) inputs per section, 22-Ω integrated series output resistors, ±12 mA drive capability, and mixed-mode 5-V input tolerance with 3.3-V VCC.
For engineers reviewing the SN74LVT162240DL datasheet, SN74LVT162240DL pinout, SN74LVT162240DL application, or SN74LVT162240DL equivalent, key selection criteria include 3-state timing (tPZH/tPLZ < 5.7 ns), hot-insertion support via Ioff and power-up 3-state, distributed VCC/GND for noise reduction, flow-through pinout for PCB layout optimization, and SSOP-48 package compatibility with industrial temperature range (–40°C to 85°C).
Technical Context
The SN74LVT162240DL implements an Advanced BiCMOS Technology (ABT) architecture optimized for 3.3-V operation with low static power dissipation. Its four independent 4-bit inverting buffers each feature dedicated active-low OE control (1OE–4OE), enabling granular bus partitioning and dynamic power management.
It supports hot insertion through dual protection mechanisms: Ioff circuitry disables outputs during power-down to prevent backflow current, while power-up 3-state ensures high-impedance outputs during VCC ramp (0–1.5 V). Distributed VCC and GND pins across the 48-pin SSOP package minimize simultaneous switching noise at high frequencies.
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 loss |
| Output Drive | ±12 mA - sufficient to directly drive 50-pF loads with tPLH/tPHL ≤ 4.6 ns at 3.3 V |
| Input Voltage Tolerance | 0 V to 5.5 V - enables TTL-level interfacing in mixed-voltage systems without level shifters |
| Output Series Resistance | 22 Ω - reduces overshoot/undershoot; eliminates need for external termination resistors |
| Hot-Insertion Support | Ioff & power-up 3-state - prevents damage and bus contention during live board insertion |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded and communications equipment |
| Propagation Delay | tPLH/tPHL = 2.5–4.6 ns - enables reliable operation in high-speed address/data buses up to ~200 MHz |
Pinout & Package
SN74LVT162240DL uses a 48-pin Shrink Small-Outline Package (SSOP-DL) with 0.5-mm pitch, 12.4 mm × 6.1 mm body size, and 1.2-mm max height. Pin 1 is located at top-left corner with notch marking; package conforms to JEDEC MO-153 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-low output-enable control | Independent enable per 4-bit section; asserts high-impedance state when high |
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 | Input data terminals | Inverting inputs; accept 0–5.5 V signals with 3.3-V VCC |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 | Inverting buffered outputs | 3-state outputs with integrated 22-Ω series resistance; drive ±12 mA |
| VCC (Pins 7, 18, 31, 42) | Power supply | Distributed VCC pins reduce IR drop and switching noise across 16-bit bus |
| GND (Pins 4, 10, 15, 21, 27, 32, 39, 45) | Ground reference | Eight GND pins provide low-inductance return paths for all output drivers |
Key Features
| Feature | Design Value |
|---|---|
| Inverting 3-state buffer architecture | Four independent 4-bit sections allow flexible bus segmentation and partial enable control |
| Integrated 22-Ω output series resistors | Eliminates external termination components and associated PCB area/cost |
| Mixed-mode signal operation | Accepts 5-V inputs while powered from 3.3-V rail - enables legacy TTL interface without translators |
| Flow-through pinout | Input and output pins aligned on opposite sides - simplifies layer routing and minimizes trace crossovers |
| Distributed VCC/GND pinning | Reduces simultaneous switching noise (SSN) and improves signal integrity in high-speed bus applications |
Applications
| Memory Address Buffering | Industrial Bus Interface |
|---|---|
Use Scenario: Driving 16-bit address lines between a 3.3-V microcontroller and 5-V SRAM or Flash memory. IC Role / Device Role / Timing Role: Inverting 3-state buffer providing level translation, fanout expansion, and bus isolation during memory access cycles. Use Value: Eliminates external level shifters and pull-up resistors while maintaining <4.6 ns propagation delay for sub-200-MHz address setup. | Use Scenario: Isolating and buffering control signals (e.g., chip select, write enable) in programmable logic-based industrial I/O modules. IC Role / Device Role / Timing Role: 3-state driver enabling dynamic bus sharing among multiple FPGA peripherals with precise enable timing control. Use Value: Ioff and power-up 3-state prevent signal contention during hot-swap of field-replaceable I/O cards. |
| Clock Distribution Network | Backplane Signal Conditioning |
Use Scenario: Distributing a 3.3-V clock signal to multiple 5-V logic devices in telecom line-card timing subsystems. IC Role / Device Role / Timing Role: Low-skew inverting buffer with matched tPLH/tPHL ensuring synchronous edge alignment across fanout branches. Use Value: 22-Ω series resistors suppress ringing on long clock traces without degrading edge rate (10 ns/V input transition spec maintained). | Use Scenario: Conditioning parallel data signals crossing a 100-mm backplane between processor and DSP blades in embedded test equipment. IC Role / Device Role / Timing Role: Bidirectional-capable 3-state driver managing signal direction and impedance matching on shared backplane traces. Use Value: Distributed VCC/GND pins and flow-through layout reduce crosstalk-induced jitter below 15 ps RMS over 100-MHz bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit inverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC162240DGGR | Lower drive (±24 mA), no integrated 22-Ω resistors, 1.65–3.6 V VCC range | Lacks built-in termination; requires external resistors for clean edges on long traces | Preferred for cost-sensitive, lower-speed (<100 MHz) designs where board space allows discrete termination |
| SN74LVTH162240DGVR | TTL-compatible outputs (VOL ≤ 0.55 V), higher drive (±64 mA), same 3.3-V VCC | Better noise margin driving legacy TTL loads but consumes more current (ICC up to 5 mA vs. 0.19 mA) | Chosen when interfacing with older 5-V TTL logic families requiring guaranteed VOL < 0.8 V |
Compared with SN74LVT162240DL, SN74LVC162240DGGR offers wider VCC flexibility but adds design complexity for signal integrity, while SN74LVTH162240DGVR delivers stronger drive and tighter VOL for TTL loads at the expense of higher static power and reduced battery life in portable systems.
Availability
SN74LVT162240DL is available at Aetrix Electronics and suitable for industrial control systems, telecom infrastructure equipment, and embedded computing platforms requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for SN74LVT162240DL 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-speed interface and bus technology.
The SN74LVT162240DL belongs to TI's Widebus™ family of ABT logic devices, engineered specifically to enhance performance and density of 3-state memory address drivers, clock drivers, and bus-oriented transceivers in 3.3-V systems.
FAQ
What is the maximum operating voltage for SN74LVT162240DL?
The absolute maximum supply voltage (VCC) for SN74LVT162240DL is 4.6 V, but its recommended operating range is 2.7 V to 3.6 V. Operation above 3.6 V risks exceeding electrical specifications and may compromise reliability. The device supports unregulated battery operation down to 2.7 V while maintaining full functionality, making it suitable for portable industrial equipment with aging power sources. Always refer to the Absolute Maximum Ratings table in the official TI datasheet SCBS719A for stress limits.
Does SN74LVT162240DL support hot-plug insertion?
Yes, SN74LVT162240DL fully supports hot-insertion applications 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 mechanisms eliminate bus contention and protect upstream logic during live board replacement. This capability is validated per TI's characterization and documented in the "DESCRIPTION/ORDERING INFORMATION" section of the SN74LVT162240DL datasheet.
What is the purpose of the 22-Ω series resistors in SN74LVT162240DL outputs?
The 22-Ω series resistors integrated into each output of SN74LVT162240DL serve to dampen transmission-line reflections, reducing overshoot and undershoot on PCB traces without requiring external components. This design eliminates the need for discrete termination resistors, saving board space and assembly cost. Measured performance shows typical output ground bounce (VOLP) remains below 0.8 V at VCC = 3.3 V and TA = 25°C, confirming effective signal integrity enhancement for 50-pF loads and typical FR-4 trace impedances.
Can SN74LVT162240DL interface with 5-V logic inputs while running at 3.3 V?
Yes, SN74LVT162240DL supports mixed-mode signal operation: its inputs tolerate voltages up to 5.5 V even when VCC is 3.3 V, enabling direct connection to 5-V TTL or CMOS outputs without level-shifting circuitry. This capability is explicitly specified in the "Recommended Operating Conditions" table (VI = 5.5 V) and verified across the full industrial temperature range (–40°C to +85°C). Input clamp current remains within safe limits (±100 µA) under these conditions, ensuring robust interoperability.
What package type and dimensions does SN74LVT162240DL use?
SN74LVT162240DL uses a 48-pin Shrink Small-Outline Package (SSOP-DL) measuring 12.4 mm × 6.1 mm with 0.5-mm lead pitch and 1.2-mm maximum height. It complies with JEDEC MO-153 mechanical standard and features a notch marking for Pin 1 identification. The package includes eight GND pins and four VCC pins distributed across the perimeter to minimize switching noise - critical for high-speed bus applications. Full mechanical drawings are available in TI's MPDS006C document.
SN74LVT162240DL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- Buffer, 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
SN74LVT162240DL FAQ
1.How can I place an order for SN74LVT162240DL through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVT162240DL 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 SN74LVT162240DL reliable?
The price and inventory of SN74LVT162240DL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVT162240DL is usually 5 days.
3.What payment methods are accepted for SN74LVT162240DL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVT162240DL transactions.
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4.How is shipping managed for SN74LVT162240DL?
SN74LVT162240DL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVT162240DL 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 SN74LVT162240DL?
For technical support, including SN74LVT162240DL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVT162240DL requirements.
6.How does Aetrix verify that SN74LVT162240DL is sourced from the original manufacturer or authorized distributors?
All SN74LVT162240DL 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 SN74LVT162240DL meets industry standards.
7.What is the process for return or replacement of SN74LVT162240DL?
All SN74LVT162240DL units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVT162240DL, 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 SN74LVT162240DL part is unused and in its original packaging.
Return procedure for SN74LVT162240DL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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