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Texas Instruments SN74LVT162240DLG4
- Part No.:
- SN74LVT162240DLG4
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
SN74LVT162240DLG4.pdf
- Description:
- IC BUFFER INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,979
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Product details
Overview
SN74LVT162240DLG4 from Texas Instruments is a 3.3-V ABT 16-bit inverting buffer/driver with 3-state outputs, designed for low-voltage bus driving and memory address buffering. It features four independent 4-bit sections, symmetrical active-low output-enable inputs (1OE–4OE), 22-Ω integrated series output resistors, ±12 mA drive strength, and mixed-mode 5-V input tolerance with 3.3-V VCC.
For engineers reviewing the SN74LVT162240DLG4 datasheet, SN74LVT162240DLG4 pinout, SN74LVT162240DLG4 application, or SN74LVT162240DLG4 equivalent, key selection criteria include its 48-pin SSOP (DL) package, guaranteed operation from –40°C to 85°C, hot-insertion support via Ioff and power-up 3-state, and compatibility with 3.3-V systems interfacing legacy 5-V logic.
Technical Context
The SN74LVT162240DLG4 implements an Advanced BiCMOS Technology (ABT) architecture optimized for 3.3-V operation with low static power dissipation. Its flow-through pinout minimizes trace routing complexity, while distributed VCC/GND pins reduce high-speed switching noise across all 48 terminals.
Each of the four 4-bit sections operates independently with inverting logic and active-low OE control. The device supports unregulated battery operation down to 2.7 V and provides TTL-level interface capability to 5-V systems through 5.5-V tolerant inputs and controlled output voltage swing (VOL = 0.8 V, VOH = 2.0 V at 3.3 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - enables stable operation under brown-out conditions and unregulated battery supply |
| IOH/IOL | ±12 mA - sufficient to directly drive standard TTL loads without external pull-ups or buffers |
| Input Voltage Tolerance | Up to 5.5 V - allows safe connection to 5-V buses without level-shifting circuitry |
| Propagation Delay | tPLH/tPHL ≤ 4.6 ns at VCC = 3.3 V - supports high-speed address/data bus timing in 100+ MHz systems |
| Output Series Resistance | 22 Ω integrated - eliminates need for external termination resistors and reduces overshoot/undershoot |
| Hot-Insertion Support | Ioff and power-up 3-state - prevents backflow current and bus contention during live insertion |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded and communications equipment |
Pinout & Package
SN74LVT162240DLG4 is housed in a 48-pin Shrink Small-Outline Package (SSOP), designated DL, with 0.5-mm pitch, 12.4 mm × 6.2 mm body size, and 1.2 mm max height per JEDEC MO-153.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE–4OE | Active-low output-enable control inputs | Independent enable for each 4-bit section; asserted low places corresponding Y outputs in high-impedance state |
| 1A1–4A4 | Buffer input terminals (16 total) | Inverting data inputs; accept 5.5-V-tolerant signals while powered from 3.3-V VCC |
| 1Y1–4Y4 | Inverting buffered outputs (16 total) | Drive-strength-controlled outputs with integrated 22-Ω series resistance; sink/source up to 12 mA |
| VCC (Pins 7, 24, 31, 42) | Power supply connections | Distributed VCC pins minimize IR drop and improve noise immunity across high-speed switching |
| GND (Pins 4, 10, 15, 20, 27, 32, 39, 45) | Ground return paths | Eight dedicated GND pins reduce ground bounce (VOLP < 0.8 V) and enhance signal integrity |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 22-Ω output series resistors | Eliminates external termination components, reduces PCB area, and suppresses transmission-line reflections |
| Mixed-mode signal operation | 5-V-tolerant inputs with 3.3-V VCC allow seamless interconnection between legacy and modern logic families |
| Flow-through architecture | Input-to-output pin alignment across package edges simplifies layer routing and minimizes trace length asymmetry |
| Distributed power/ground pins | Four VCC and eight GND pins lower impedance path to decoupling capacitors and reduce simultaneous switching noise |
| Power-up 3-state and Ioff protection | Ensures outputs remain high-Z during power ramp-up/down and blocks reverse current during hot-swap events |
Applications
| Memory Address Buffering | High-Speed Bus Transceiver |
|---|---|
Use Scenario: Driving 16-bit address lines from a microcontroller to SRAM or Flash memory in industrial PLCs. IC Role / Device Role / Timing Role: Inverting 16-bit buffer with 3-state control, enabling shared address bus arbitration between multiple masters. Use Value: Integrated 22-Ω resistors prevent signal ringing on long traces; 4.6 ns propagation delay ensures setup/hold compliance at 100-MHz bus rates. | Use Scenario: Isolating and strengthening bidirectional data bus signals between FPGA and peripheral ICs in telecom baseband modules. IC Role / Device Role / Timing Role: Four independent 4-bit 3-state drivers provide flexible bus partitioning and direction control via discrete OE signals. Use Value: 5.5-V input tolerance permits direct connection to 5-V peripherals; low VOL/VOLP ensures noise margin in electrically noisy RF environments. |
| CPU-to-Peripheral Interface | Hot-Swappable Backplane Driver |
Use Scenario: Level-shifting and buffering control signals (e.g., chip select, write enable) from a 3.3-V SoC to 5-V legacy peripherals. IC Role / Device Role / Timing Role: Inverting buffer with TTL-compatible output swing, used as glue logic between mismatched voltage domains. Use Value: No external level shifters required; guaranteed VOH ≥ 2.0 V and VOL ≤ 0.8 V meet TTL input thresholds across temperature. | Use Scenario: Driving backplane address/data lines in modular test equipment where cards are inserted/removed under power. IC Role / Device Role / Timing Role: 3-state buffer with Ioff and power-up 3-state, ensuring safe insertion without disrupting active bus traffic. Use Value: Ioff limits reverse current to ±100 µA when powered down; power-up 3-state prevents bus contention during card initialization. |
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 |
|---|---|---|---|
| SN74LVC16244ADLR | Non-inverting outputs; LVC family (lower drive: ±24 mA); no integrated 22-Ω resistors | Suitable for non-inverting bus hold or fanout expansion where polarity preservation is required | Select when inverting logic is not needed and higher drive current is acceptable |
| SN74ALVCH162244DGGR | Non-inverting; ALVCH family (3.3-V only, no 5-V input tolerance); 24 mA drive; no integrated series resistors | Better for pure 3.3-V systems requiring higher speed (tPD ≈ 3.2 ns) and lower ICC | Choose for new 3.3-V-only designs prioritizing speed and quiescent current over mixed-voltage interoperability |
Compared with SN74LVT162240DLG4, SN74LVC16244ADLR offers non-inverting logic and higher drive but lacks 5-V input tolerance and integrated termination; SN74ALVCH162244DGGR delivers faster propagation and lower power but requires strict 3.3-V signaling and external termination for clean edges.
Availability
SN74LVT162240DLG4 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 support, and verified hot-swap capability.
Supply support for SN74LVT162240DLG4 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 experience in high-reliability interface and bus technology.
The SN74LVT162240DLG4 belongs to TI's Widebus™ ABT logic family, engineered for high-density, low-noise 3.3-V bus driving in memory, clock, and data-path applications where mixed-voltage interoperability and signal integrity are critical.
FAQ
What is the operating voltage range for SN74LVT162240DLG4?
The SN74LVT162240DLG4 operates over a supply voltage range of 2.7 V to 3.6 V. This range supports unregulated battery-powered systems and accommodates typical 3.3-V rail tolerances. Operation below 2.7 V may result in undefined logic states or degraded timing performance, and operation above 3.6 V exceeds absolute maximum ratings and risks permanent damage. The device maintains full functionality-including 5.5-V input tolerance and 3-state behavior-across this entire range.
Does SN74LVT162240DLG4 support hot insertion?
Yes, SN74LVT162240DLG4 supports hot insertion via two complementary features: Ioff circuitry disables outputs when VCC = 0 V, preventing damaging backflow current, and power-up 3-state forces outputs into high-impedance during power ramp-up/down. These functions are fully characterized and guaranteed per JESD78 Class II latch-up testing. For reliable hot-swap operation, ensure OE pins are pulled high via appropriate resistors before VCC reaches 1.5 V.
What package type is used for SN74LVT162240DLG4?
SN74LVT162240DLG4 uses the DL package: a 48-pin Shrink Small-Outline Package (SSOP) with 0.5-mm lead pitch, 12.4 mm × 6.2 mm body dimensions, and 1.2 mm maximum height. It complies with JEDEC MO-153 and is supplied in tubes of 25 units. The DL package features gull-wing leads compatible with standard SMT reflow profiles and offers superior thermal performance (θJA = 63°C/W) compared to finer-pitch alternatives like DGV.
Can SN74LVT162240DLG4 interface directly with 5-V logic?
Yes, SN74LVT162240DLG4 can interface directly with 5-V logic: its inputs tolerate up to 5.5 V regardless of VCC level, and its outputs deliver TTL-compatible VOH ≥ 2.0 V and VOL ≤ 0.8 V when loaded with 12 mA. This eliminates external level shifters in mixed-voltage systems. However, outputs must not be driven by 5-V sources while the device is unpowered (VCC = 0), as Ioff protection only activates after power removal-not before.
What is the maximum propagation delay for SN74LVT162240DLG4?
The maximum propagation delay for SN74LVT162240DLG4 is 5.0 ns for tPLH and tPHL at VCC = 2.7 V, and 4.6 ns at VCC = 3.3 V (CL = 50 pF). These values are specified across the full operating temperature range (–40°C to +85°C) and represent worst-case delays from input transition to valid output transition. At typical conditions (VCC = 3.3 V, TA = 25°C), tPLH/tPHL is 2.5 ns, enabling reliable use in sub-200-MHz bus applications.
SN74LVT162240DLG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- 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
SN74LVT162240DLG4 FAQ
1.How can I place an order for SN74LVT162240DLG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVT162240DLG4 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 SN74LVT162240DLG4 reliable?
The price and inventory of SN74LVT162240DLG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVT162240DLG4 is usually 5 days.
3.What payment methods are accepted for SN74LVT162240DLG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVT162240DLG4 transactions.
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4.How is shipping managed for SN74LVT162240DLG4?
SN74LVT162240DLG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVT162240DLG4 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 SN74LVT162240DLG4?
For technical support, including SN74LVT162240DLG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVT162240DLG4 requirements.
6.How does Aetrix verify that SN74LVT162240DLG4 is sourced from the original manufacturer or authorized distributors?
All SN74LVT162240DLG4 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 SN74LVT162240DLG4 meets industry standards.
7.What is the process for return or replacement of SN74LVT162240DLG4?
All SN74LVT162240DLG4 units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVT162240DLG4, 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 SN74LVT162240DLG4 part is unused and in its original packaging.
Return procedure for SN74LVT162240DLG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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