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Texas Instruments SN74LVT162244ADL
- Part No.:
- SN74LVT162244ADL
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
SN74LVT162244ADL.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,368
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Product details
Overview
SN74LVT162244ADL from Texas Instruments is a 3.3-V ABT 16-bit buffer/driver with 3-state outputs in a 48-pin SSOP (DL) package. It provides true output logic, four independent 4-bit channels, 12-mA drive strength per output, integrated 22-Ω series termination, and supports mixed-mode 5-V/3.3-V interfacing - used in high-speed backplane and bus interface applications.
For engineers reviewing the SN74LVT162244ADL datasheet, SN74LVT162244ADL pinout, SN74LVT162244ADL application, or SN74LVT162244ADL equivalent, key selection criteria include 3-state enable timing (tPZH/tPLZ ≤ 6.7 ns), hot-insertion support via Ioff and power-up 3-state, distributed VCC/GND for noise reduction, and compatibility with TTL-level inputs at 3.3-V VCC.
Technical Context
The SN74LVT162244ADL implements four independent 4-bit noninverting buffers, each with an active-low output-enable (OE) control. Its ABT (Advanced BiCMOS Technology) architecture enables 3.3-V operation while accepting 5-V-tolerant inputs and delivering TTL-compatible outputs.
It features distributed VCC and GND pins across the 48-pin SSOP footprint to minimize simultaneous switching noise, and includes internal 22-Ω series resistors on all outputs to suppress overshoot/undershoot without external components - critical for clean signal integrity in dense PCB layouts.
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 with full functionality. |
| Output Drive | ±12 mA - sufficient to drive standard TTL loads and short traces without external buffering. |
| Input Voltage | 0 V to 5.5 V - enables direct connection to 5-V logic without level shifters. |
| Propagation Delay | tPLH/tPHL ≤ 5.1 ns @ VCC = 3.3 V - ensures sub-5-ns timing margin for 100-MHz bus operation. |
| 3-State Enable Time | tPZH ≤ 6.5 ns - fast output disable minimizes bus contention during state transitions. |
| Power-Up 3-State | Active below 1.5 V VCC - prevents output conflict during power ramp-up or brownout conditions. |
| Ioff Current | ±100 µA @ VCC = 0 - blocks backflow current during hot insertion or partial power-down. |
Pinout & Package
SN74LVT162244ADL uses a 48-pin Shrink Small-Outline Package (SSOP), DL variant, with 0.5-mm pitch, 12.4 mm × 6.2 mm body size, and 1.2 mm max height per JEDEC MO-153. Pin 1 is located at top-left corner with notch marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-low output-enable inputs | Independent control of each 4-bit channel; tied high via pullup for default disable. |
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 | Data inputs | 16 total TTL-compatible inputs accepting 0–5.5 V regardless of VCC level. |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 | True buffered outputs | 16 outputs with built-in 22-Ω series resistance - eliminates need for external termination resistors. |
| VCC (Pins 7, 21, 34, 48) | Supply voltage | Distributed power pins reduce IR drop and high-frequency noise coupling across the die. |
| GND (Pins 4, 10, 25, 32, 37, 43) | Ground reference | Six dedicated ground pins provide low-inductance return paths for all output drivers. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 22-Ω series output resistors | Eliminates external termination components and reduces PCB layout complexity for impedance-controlled traces. |
| Mixed-mode 5-V input tolerance | Enables seamless interfacing between legacy 5-V systems and modern 3.3-V logic without level translators. |
| Ioff and power-up 3-state | Guarantees high-impedance outputs during power sequencing - essential for hot-plug backplane and modular system designs. |
| Flow-through pin architecture | Input and output pins are arranged on opposite sides of the package to simplify layer routing and minimize trace crossovers. |
| Distributed VCC/GND pin placement | Reduces simultaneous switching noise (SSN) by localizing supply current loops - improves signal integrity at >100 MHz. |
Applications
| Backplane Bus Interface | Hot-Swappable Module |
|---|---|
Use Scenario: Driving parallel address/data buses between line cards in telecom or industrial chassis-based systems. IC Role / Device Role / Timing Role: 16-bit unidirectional buffer isolating source and load domains while maintaining signal edge fidelity. Use Value: Integrated 22-Ω termination and <5.1 ns propagation delay ensure clean 100-MHz bus signaling without added BOM cost or layout area. | Use Scenario: Enabling safe insertion/removal of daughterboards into powered backplanes without disrupting system operation. IC Role / Device Role / Timing Role: Output isolation device with Ioff and power-up 3-state preventing backdrive and bus contention during hot-swap events. Use Value: ±100 µA Ioff and guaranteed high-Z state below 1.5 V VCC eliminate risk of damaging current flow during partial power states. |
| Legacy System Upgrade | Low-Voltage FPGA I/O Expansion |
Use Scenario: Interfacing 3.3-V microcontrollers or FPGAs to existing 5-V peripheral buses (e.g., ISA, LPC). IC Role / Device Role / Timing Role: Level-shifting buffer translating 3.3-V logic levels to 5-V-tolerant outputs while preserving timing margins. Use Value: 5.5-V input rating and TTL-compatible output swing allow direct connection to 5-V peripherals without discrete level shifters. | Use Scenario: Expanding I/O count of resource-constrained FPGAs in industrial control or test equipment. IC Role / Device Role / Timing Role: High-drive (±12 mA), low-skew buffer adding robust off-chip drive capability to FPGA GPIO banks. Use Value: Symmetrical tPLH/tPHL ≤ 5.1 ns and <0.5 ns skew (tsk) preserve setup/hold timing for synchronous parallel interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit buffer/driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16244ADGGR | Lower drive (±24 mA), no integrated series resistors, 1.65–3.6 V VCC range. | Lacks built-in 22-Ω termination; requires external resistors for clean edge control. | Choose when higher drive or wider VCC range is needed, and board space allows external termination. |
| SN74ALVC16244DL | Same 48-pin SSOP package, but ALVC process yields lower ICC (0.19 mA typical) and faster tPLH (3.4 ns). | No Ioff or power-up 3-state - unsuitable for hot-insertion systems. | Prefer for static, low-power applications where hot-swap safety is not required. |
Compared with SN74LVC16244ADGGR and SN74ALVC16244DL, the SN74LVT162244ADL uniquely combines integrated 22-Ω termination, Ioff-enabled hot insertion, and 5-V input tolerance - making it the only option among the three qualified for mixed-voltage backplane interfaces requiring zero-layout overhead and plug-and-play reliability.
Availability
SN74LVT162244ADL is available at Aetrix Electronics and suitable for high-speed backplane bus interfaces, hot-swappable module designs, legacy-to-modern system upgrades, and FPGA I/O expansion requiring stable component supply and long-term production continuity.
Supply support for SN74LVT162244ADL 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 ICs.
The SN74LVT162244ADL belongs to TI's Widebus™ family of advanced bus-interface devices, engineered specifically for noise-sensitive, high-density digital systems requiring robust mixed-voltage interoperability and clean signal integrity without design compromises.
FAQ
What is the maximum operating temperature range for the SN74LVT162244ADL?
The SN74LVT162244ADL is rated for operation from –40°C to +85°C ambient temperature, as confirmed in TI's official SCBS718D datasheet under Recommended Operating Conditions. This industrial-grade temperature range supports deployment in factory automation, telecom infrastructure, and outdoor embedded systems where thermal stability is critical. The SN74LVT162244ADL maintains full electrical specifications across this range without derating.
Does the SN74LVT162244ADL require external pull-up resistors on its OE pins?
Yes - to guarantee high-impedance output state above 1.5 V VCC, each OE pin (1OE–4OE) must be tied to VCC through an external pullup resistor. The minimum resistor value depends on the driver's current-sinking capability, as specified in the SN74LVT162244ADL datasheet. Leaving OE floating risks undefined output behavior during power transitions.
Can the SN74LVT162244ADL safely interface with 5-V logic inputs while powered at 3.3 V?
Yes - the SN74LVT162244ADL accepts input voltages up to 5.5 V independent of VCC, enabling direct connection to 5-V TTL or CMOS outputs without level shifters. This 5-V input tolerance is explicitly documented in the Absolute Maximum Ratings and Electrical Characteristics tables of the SN74LVT162244ADL datasheet.
What is the purpose of the distributed VCC and GND pins on the SN74LVT162244ADL?
The SN74LVT162244ADL places VCC (pins 7, 21, 34, 48) and GND (pins 4, 10, 25, 32, 37, 43) across the 48-pin SSOP footprint to localize high-frequency supply current loops. This reduces simultaneous switching noise (SSN), minimizes ground bounce (VOLP < 0.8 V), and improves signal integrity in high-speed bus applications - a key design feature verified in TI's characterization data.
Is the SN74LVT162244ADL RoHS compliant and lead-free?
Yes - the SN74LVT162244ADL carries NIPDAU (nickel-palladium-gold) lead finish and is RoHS compliant, as confirmed in TI's Packaging Information Addendum. Its MSL rating is Level-1-260C-UNLIM, supporting standard Pb-free reflow profiles without moisture sensitivity concerns. The part marking "LVT162244A" and packaging code "DL" align with TI's RoHS-compliant production release.
SN74LVT162244ADL 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, Non-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
SN74LVT162244ADL FAQ
1.How can I place an order for SN74LVT162244ADL through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVT162244ADL 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 SN74LVT162244ADL reliable?
The price and inventory of SN74LVT162244ADL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVT162244ADL is usually 5 days.
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SN74LVT162244ADL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVT162244ADL 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 SN74LVT162244ADL?
For technical support, including SN74LVT162244ADL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVT162244ADL requirements.
6.How does Aetrix verify that SN74LVT162244ADL is sourced from the original manufacturer or authorized distributors?
All SN74LVT162244ADL 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 SN74LVT162244ADL meets industry standards.
7.What is the process for return or replacement of SN74LVT162244ADL?
All SN74LVT162244ADL units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVT162244ADL, 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 SN74LVT162244ADL part is unused and in its original packaging.
Return procedure for SN74LVT162244ADL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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