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Texas Instruments SN74LVT162244ADLR
- Part No.:
- SN74LVT162244ADLR
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
SN74LVT162244ADLR.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,665
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Product details
Overview
SN74LVT162244ADLR from Texas Instruments is a 3.3-V ABT 16-bit buffer/driver with 3-state outputs, designed for level-shifting between 3.3-V logic and 5-V TTL systems. It provides true outputs, four independent 4-bit channels, 12-mA output drive capability, integrated 22-Ω series resistors to suppress overshoot/undershoot, and supports hot insertion via Ioff and power-up 3-state.
For engineers reviewing the SN74LVT162244ADLR datasheet, SN74LVT162244ADLR pinout, SN74LVT162244ADLR application, or SN74LVT162244ADLR equivalent, key selection considerations include mixed-mode voltage tolerance (5-V inputs with 3.3-V VCC), distributed VCC/GND pins for noise reduction, flow-through pinout for optimized PCB layout, and guaranteed operation down to 2.7 V for battery-powered systems.
Technical Context
The SN74LVT162244ADLR implements four independent 4-bit noninverting buffers, each with an active-low output-enable (OE) input. Its ABT (Advanced BiCMOS Technology) architecture enables TTL-compatible input thresholds while operating at 3.3-V supply, supporting bidirectional voltage translation without external components.
It features distributed power and ground pins across the 48-pin SSOP package to minimize simultaneous switching noise, and its flow-through pinout-inputs on one side, outputs on the opposite-reduces trace crossovers and improves signal integrity in high-density layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - Enables stable operation under unregulated battery supply or noisy rail conditions. |
| IOH / IOL | –12 mA / 12 mA - Sufficient drive strength for fanout to multiple TTL loads or transmission-line termination. |
| VIH / VIL | 2.0 V / 0.8 V - Compatible with standard 5-V TTL input thresholds while powered from 3.3 V. |
| tPLH / tPHL | Typ. 3.4 ns at VCC = 3.3 V - Supports high-speed data buffering up to ~150 MHz system clock domains. |
| Input/Output Clamp Voltage | ±50 mA clamp current - Protects against transient overvoltage during hot-swap or bus contention events. |
| ICC (Active) | 5 mA max - Low quiescent power per channel group, suitable for portable and thermally constrained designs. |
| Ioff | ±100 µA at VCC = 0 - Prevents backflow current during partial power-down, enabling safe hot insertion. |
Pinout & Package
SN74LVT162244ADLR is housed in a 48-pin SSOP (DL) package, 12.6 mm × 6.2 mm × 1.75 mm, JEDEC MO-153 compliant, with 0.5-mm lead pitch and gull-wing leads. Pin 1 located at top-left corner with notch marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-low output enable | Independently controls 4-bit groups; tied high disables all outputs to high-impedance state. |
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 | Data inputs | True-input terminals accepting 5-V tolerant signals at 3.3-V VCC. |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 | Buffered outputs | Noninverting, 3-state, 12-mA capable, with internal 22-Ω series resistance. |
| VCC (Pins 7, 18, 31, 42) | Supply voltage | Distributed power pins reduce IR drop and high-frequency impedance across the die. |
| GND (Pins 4, 10, 15, 27, 36, 45) | Ground reference | Six dedicated GND pins minimize ground bounce and improve noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode interface | Accepts 5-V inputs and drives 5-V loads while powered from 3.3-V VCC - eliminates level-shifters in legacy system upgrades. |
| Integrated 22-Ω series resistors | Reduces output overshoot/undershoot without external components - simplifies layout and lowers BOM count. |
| Hot-insertion support | Ioff and power-up 3-state prevent backdrive and bus conflicts during live board insertion - critical for modular backplane systems. |
| Flow-through pinout | Inputs and outputs segregated on opposite sides - enables straight-layer routing and minimizes vias in dense PCBs. |
| Distributed VCC/GND | Four VCC and six GND pins - lowers effective power-supply inductance and suppresses simultaneous switching noise (SSN). |
Applications
| Industrial Backplane Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Interfacing 3.3-V microcontroller GPIOs to legacy 5-V peripheral buses in programmable logic controllers. IC Role / Device Role / Timing Role: Level-translating buffer isolating low-voltage control logic from higher-voltage I/O subsystems. Use Value: Eliminates need for discrete resistor-based level shifters while maintaining signal integrity and timing margins. | Use Scenario: Driving 5-V sensor inputs and actuator outputs from a 3.3-V automotive MCU in body electronics modules. IC Role / Device Role / Timing Role: Bidirectional voltage-tolerant buffer enabling interoperability between new low-power MCUs and existing 5-V analog/digital subsystems. Use Value: Supports unregulated battery operation down to 2.7 V and withstands load-dump transients via robust clamp protection. |
| Telecom Line Card Expansion | Test Equipment Signal Conditioning |
Use Scenario: Adding 16-bit parallel I/O expansion to high-density telecom line cards using space-constrained SSOP packaging. IC Role / Device Role / Timing Role: High-speed, low-noise buffer with distributed power/ground for clean signal routing across multi-layer backplanes. Use Value: Flow-through architecture reduces layer count and via usage; 3.4-ns propagation delay meets tight timing budgets. | Use Scenario: Conditioning digital stimulus/response signals between 3.3-V FPGA pattern generators and 5-V DUT interfaces in ATE systems. IC Role / Device Role / Timing Role: Precision 3-state driver ensuring glitch-free bus arbitration and deterministic enable/disable timing. Use Value: Guaranteed tPZH/tPZL < 6.7 ns ensures fast, predictable bus release - critical for high-throughput test sequencing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVTH162244ADLR | Lower drive (8 mA vs. 12 mA); LVTH family, not LVT - reduced speed (tPHL typ. 4.2 ns) and no 5-V input tolerance. | Not suitable for 5-V TTL interfacing; limited to 3.3-V-only systems. | Select only if cost or lower power is prioritized over mixed-voltage compatibility and drive strength. |
| SN74ALVC162244DGGR | ALVC family; 3.3-V only, no 5-V input tolerance; higher speed (tPHL typ. 2.9 ns), but no integrated series resistors. | Requires external termination for clean edges; incompatible with 5-V legacy peripherals. | Prefer when maximum speed and minimal propagation delay are required in fully 3.3-V environments. |
Compared with SN74LVTH162244ADLR and SN74ALVC162244DGGR, the SN74LVT162244ADLR uniquely combines 5-V input tolerance, 12-mA drive, integrated 22-Ω resistors, and hot-insertion support - making it the only option among the three qualified for mixed-voltage backplane and legacy upgrade applications.
Availability
SN74LVT162244ADLR is available at Aetrix Electronics and suitable for industrial backplane interfaces, automotive body control modules, and telecom line card expansion requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for SN74LVT162244ADLR 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 innovation in high-reliability interface and buffer technologies.
The SN74LVT162244ADLR belongs to TI's Widebus™ family of advanced bus-interface devices, engineered specifically for high-speed, mixed-voltage system interconnect in industrial, telecom, and automotive applications.
FAQ
What is the maximum operating temperature range for the SN74LVT162244ADLR?
The SN74LVT162244ADLR 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 harsh environments such as factory automation controllers and automotive under-hood modules where thermal stability is critical. The device maintains full electrical specifications across this range without derating.
Does the SN74LVT162244ADLR support 5-V input signals while powered at 3.3 V?
Yes, the SN74LVT162244ADLR explicitly supports 5-V input signals with a 3.3-V VCC supply, as stated in its "Support Mixed-Mode Signal Operation" feature and verified by VI = 5.5 V absolute maximum rating and VIH = 2.0 V minimum high-level input voltage. This allows direct interfacing with legacy 5-V TTL logic without external level-shifting circuitry - a core design advantage of the LVT family.
What package type and dimensions does the SN74LVT162244ADLR use?
The SN74LVT162244ADLR uses a 48-pin SSOP (Shrink Small Outline Package), designated DL by Texas Instruments. Its mechanical dimensions are 12.6 mm × 6.2 mm × 1.75 mm with 0.5-mm lead pitch, conforming to JEDEC MO-153. The package includes gull-wing leads, a top-side notch for pin 1 identification, and is RoHS-compliant with NiPdAu lead finish.
How does the SN74LVT162244ADLR handle power-up and power-down sequencing?
The SN74LVT162244ADLR incorporates power-up 3-state and Ioff circuitry: outputs enter high-impedance state automatically when VCC is below 1.5 V, and remain disabled during ramp-up/down. Ioff limits current to ±100 µA when VCC = 0, preventing damaging backflow during hot insertion or partial power-down - essential for modular systems with live backplanes.
Can the SN74LVT162244ADLR be used as a single 16-bit buffer or split into smaller groups?
Yes, the SN74LVT162244ADLR can be configured flexibly as one 16-bit buffer, two independent 8-bit buffers, or four separate 4-bit buffers - each with its own active-low OE input (1OE–4OE). This configurability is documented in TI's functional description and supported by the independent enable/control structure, allowing optimal resource allocation in diverse system architectures.
SN74LVT162244ADLR 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:
- 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
SN74LVT162244ADLR FAQ
1.How can I place an order for SN74LVT162244ADLR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVT162244ADLR 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 SN74LVT162244ADLR reliable?
The price and inventory of SN74LVT162244ADLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVT162244ADLR is usually 5 days.
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Once your SN74LVT162244ADLR 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 SN74LVT162244ADLR?
For technical support, including SN74LVT162244ADLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVT162244ADLR requirements.
6.How does Aetrix verify that SN74LVT162244ADLR is sourced from the original manufacturer or authorized distributors?
All SN74LVT162244ADLR 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 SN74LVT162244ADLR meets industry standards.
7.What is the process for return or replacement of SN74LVT162244ADLR?
All SN74LVT162244ADLR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVT162244ADLR, 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 SN74LVT162244ADLR part is unused and in its original packaging.
Return procedure for SN74LVT162244ADLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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