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Texas Instruments SN74LVT162240DLR
- Part No.:
- SN74LVT162240DLR
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
SN74LVT162240DLR.pdf
- Description:
- IC BUFFER INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,303
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Product details
Overview
SN74LVT162240DLR from Texas Instruments is a 3.3-V ABT 16-bit inverting buffer/driver with 3-state outputs, designed for memory address and clock bus driving in mixed-voltage systems. It supports 5-V input compatibility with 3.3-V VCC, delivers ±12 mA drive strength per output, integrates 22-Ω series termination, and operates from –40°C to 85°C in a 48-pin SSOP (DL) package.
For engineers reviewing the SN74LVT162240DLR datasheet, SN74LVT162240DLR pinout, SN74LVT162240DLR application, or SN74LVT162240DLR equivalent, key selection criteria include 3.3-V ABT logic family compatibility, hot-insertion support via Ioff and power-up 3-state, distributed VCC/GND for noise reduction, flow-through pinout for PCB layout optimization, and TTL-level interfacing capability with 5-V systems.
Technical Context
The SN74LVT162240DLR implements four independent 4-bit inverting buffers, each with symmetrical active-low output-enable (OE) control. Its Advanced BiCMOS Technology (ABT) enables low static power at 3.3 V while maintaining TTL-compatible input thresholds and 5-V tolerant inputs.
It features built-in 22-Ω series output resistors to suppress overshoot/undershoot, distributed power/ground pins to minimize switching noise, and Ioff circuitry that disables outputs during power-down to prevent backflow current-enabling safe hot insertion into live backplanes or motherboards.
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 |
| IOH/IOL | ±12 mA - sufficient to drive standard TTL loads or short PCB traces without external buffering |
| tPLH/tPHL | 2.5 ns to 5 ns @ VCC = 3.3 V - enables high-speed address or clock distribution in 100+ MHz bus systems |
| VIH/VIL | 2.0 V / 0.8 V - ensures reliable TTL-level signal recognition when interfacing with legacy 5-V logic |
| Input/Output Voltage Tolerance | Up to 5.5 V on inputs and outputs - allows direct connection to 5-V buses without level shifters |
| Ioff Current | ±100 µA @ VCC = 0 - prevents damaging back-current during hot-swap events |
| Power-Up 3-State | Active below 1.5 V VCC - eliminates bus contention during power ramp-up or brownout |
Pinout & Package
SN74LVT162240DLR uses a 48-pin Shrink Small-Outline Package (SSOP-DL), 12.6 mm × 6.1 mm body, 0.5 mm pitch, JEDEC MO-153 compliant, with gull-wing leads and exposed pad not present. Pin 1 marked by beveled corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-low output-enable control for each 4-bit section | Independent gating enables selective bus isolation without affecting other channels |
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 | Buffer input terminals (16 total) | Inverting logic: low input → high output; high input → low output |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 | Inverting buffered outputs (16 total) | Each output includes integrated 22-Ω series resistor for controlled edge rates |
| VCC (Pins 7, 18, 31, 42) | Supply voltage connections | Distributed VCC pins reduce simultaneous switching noise and improve PDN stability |
| GND (Pins 4, 10, 15, 21, 27, 32, 39, 45) | Ground return paths | Eight GND pins provide low-inductance return paths for all 16 drivers |
Key Features
| Feature | Design Value |
|---|---|
| 3.3-V ABT logic family | Combines BiCMOS speed with CMOS low static power - ICC < 0.2 mA in 3-state, 5 mA typical active |
| Mixed-mode signal operation | 5-V-tolerant inputs/outputs with 3.3-V VCC - eliminates need for external level translators in hybrid voltage systems |
| Integrated 22-Ω series output resistors | Reduces EMI and signal integrity issues - no external termination resistors required for point-to-point routing |
| Hot-insertion support | Ioff + power-up 3-state prevents backflow and bus conflict - certified for live insertion into powered backplanes |
| Flow-through pinout architecture | Inputs on one side, outputs on opposite side - simplifies layer routing and minimizes trace crossovers on dense PCBs |
Applications
| Memory Address Buffering | Clock Distribution |
|---|---|
Use Scenario: Driving 16-bit 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: Inverting 3-state buffer providing level translation, fanout expansion, and bus isolation. Use Value: Eliminates discrete level shifters and pull-up networks while ensuring clean edges via on-die 22-Ω termination. | Use Scenario: Distributing a system clock to multiple 3.3-V and 5-V peripherals with matched skew and minimal jitter. IC Role / Device Role / Timing Role: Low-skew, low-noise clock driver with distributed VCC/GND and flow-through layout. Use Value: Reduces ground bounce (VOLP < 0.8 V) and maintains timing integrity across 16 outputs under heavy capacitive load. |
| Backplane Interface | Hot-Swappable Module Control |
Use Scenario: Interfacing a 3.3-V FPGA to a legacy 5-V VMEbus or ISA-style backplane with strict hot-swap requirements. IC Role / Device Role / Timing Role: Bus transceiver enabling bidirectional communication with automatic isolation during insertion/removal. Use Value: Ioff and power-up 3-state guarantee zero current injection and no bus contention during live module replacement. | Use Scenario: Controlling enable signals for hot-pluggable daughter cards in telecom or industrial chassis systems. IC Role / Device Role / Timing Role: 16-channel programmable output driver with per-section OE control and fail-safe power sequencing. Use Value: Independent OE pins allow staggered power-up of subsystems, preventing inrush current peaks and supply rail collapse. |
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 |
|---|---|---|---|
| SN74LVC16244ADGGR | Non-inverting, LVC family, lower drive (±24 mA), no integrated series resistors | Lacks 5-V tolerance and built-in termination - requires external resistors for clean edges | Preferred when non-inverting logic and higher drive are needed, but adds layout complexity |
| SN74LVTH162240DGVR | Same pinout, TTL-output variant (higher VOL/VOH), identical ABT core and hot-swap features | Designed for stricter TTL-compatible VOH/VOL specs - better for legacy 5-V bus loading | Drop-in replacement where TTL-level output swing is mandatory; same DL/DGV/DGG footprint |
Compared with SN74LVC16244ADGGR, SN74LVT162240DLR provides guaranteed 5-V input tolerance and on-die termination, reducing BOM count and improving signal integrity. Against SN74LVTH162240DGVR, it shares identical functionality but differs in output voltage thresholds - the 'LVT' version targets general 3.3-V systems, while 'LVTH' targets strict TTL-compliant interfaces.
Availability
SN74LVT162240DLR is available at Aetrix Electronics and suitable for memory subsystems, clock tree distribution, backplane interface modules, and hot-swappable industrial controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74LVT162240DLR 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 90 years of innovation in industrial, automotive, and communications markets.
The SN74LVT162240DLR belongs to TI's Widebus™ ABT logic family, engineered for high-density, low-noise 3.3-V bus interfacing in mixed-voltage computing and telecom infrastructure.
FAQ
What is the operating temperature range for SN74LVT162240DLR?
The SN74LVT162240DLR is characterized for operation from –40°C to 85°C, making it suitable for industrial and commercial environments. This range is specified per the SN74LVT162240 device grade (not the military-grade SN54LVT162240), and applies to all package variants including the DL SSOP used in SN74LVT162240DLR. Thermal performance is validated with θJA = 63°C/W for the DL package.
Does SN74LVT162240DLR support 5-V input signals while powered from 3.3 V?
Yes, SN74LVT162240DLR supports 5-V-tolerant inputs with VCC = 3.3 V. Its input voltage range extends to 5.5 V, and it maintains valid VIH (≥2.0 V) and VIL (≤0.8 V) thresholds under this condition. This capability is explicitly documented in the Recommended Operating Conditions table and enables direct interfacing with legacy 5-V logic without external level-shifting circuitry.
How does the integrated 22-Ω series resistor in SN74LVT162240DLR affect signal integrity?
The SN74LVT162240DLR includes an equivalent 22-Ω series resistor on each output, which damps signal reflections and reduces overshoot/undershoot on PCB traces up to ~10 cm in length. This eliminates the need for external series termination resistors, simplifying layout and reducing BOM cost. Measured output ground bounce (VOLP) remains below 0.8 V at VCC = 3.3 V, confirming effective edge control.
Can SN74LVT162240DLR be used in hot-swap applications?
Yes, SN74LVT162240DLR is fully specified for hot-insertion applications. Its Ioff circuitry disables outputs when VCC = 0, preventing damaging back-current, and its power-up 3-state feature forces outputs into high-impedance during power ramp-up/down. These features are verified per JESD78 Class II latch-up and JESD22 ESD standards, and are explicitly called out in the device description and ordering information.
What is the pin configuration difference between SN74LVT162240DLR and SN74LVTH162240DGVR?
SN74LVT162240DLR (DL package) and SN74LVTH162240DGVR (DGV package) share identical pinout and function mapping - both follow the same Widebus™ 48-pin flow-through architecture with inputs on one side and outputs on the other. The only differences are package type (SSOP vs. TVSOP), marking (LVT162240 vs. LZ240), and output voltage specifications: 'LVT' guarantees 3.3-V compatible VOH/VOL, while 'LVTH' meets stricter TTL output thresholds.
SN74LVT162240DLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
SN74LVT162240DLR FAQ
1.How can I place an order for SN74LVT162240DLR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVT162240DLR 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 SN74LVT162240DLR reliable?
The price and inventory of SN74LVT162240DLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVT162240DLR is usually 5 days.
3.What payment methods are accepted for SN74LVT162240DLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVT162240DLR transactions.
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4.How is shipping managed for SN74LVT162240DLR?
SN74LVT162240DLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVT162240DLR 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 SN74LVT162240DLR?
For technical support, including SN74LVT162240DLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVT162240DLR requirements.
6.How does Aetrix verify that SN74LVT162240DLR is sourced from the original manufacturer or authorized distributors?
All SN74LVT162240DLR 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 SN74LVT162240DLR meets industry standards.
7.What is the process for return or replacement of SN74LVT162240DLR?
All SN74LVT162240DLR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVT162240DLR, 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 SN74LVT162240DLR part is unused and in its original packaging.
Return procedure for SN74LVT162240DLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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