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Texas Instruments SN74LVC162244ADLR
- Part No.:
- SN74LVC162244ADLR
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
SN74LVC162244ADLR.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
SN74LVC162244ADLR from Texas Instruments is a 16-bit noninverting 3-state buffer/driver with four independent 4-bit sections, operating from 1.65 V to 3.6 V, supporting 5.5-V-tolerant inputs and delivering ±12 mA output drive at 3.3 V - used in memory address buffering, bus isolation, and mixed-voltage I/O translation in industrial control backplanes.
For engineers reviewing the SN74LVC162244ADLR datasheet, SN74LVC162244ADLR pinout, SN74LVC162244ADLR application, or SN74LVC162244ADLR equivalent, key selection considerations include its 48-pin SSOP (DL) package, Ioff-enabled live insertion support, 26-Ω integrated output series resistance for EMI reduction, and true 3-state output behavior with active-low OE per section.
Technical Context
This device implements four independent 4-bit noninverting buffers, each with dedicated active-low output-enable (OE) control. Each buffer section accepts 5.5-V-tolerant inputs while powered from 1.65–3.6 V, enabling down-translation in mixed-voltage systems without level shifters.
It features Ioff circuitry that disables outputs and blocks current flow when VCC = 0 V, supporting partial power-down and hot-swap capability. Outputs include built-in 26-Ω series termination to suppress overshoot/undershoot, eliminating external resistors in point-to-point routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 3.6 V - enables interoperability across 1.8-V, 2.5-V, and 3.3-V logic domains |
| Input Voltage Tolerance | Up to 5.5 V - allows direct interfacing with legacy 5-V peripherals without external level translation |
| Max Propagation Delay | 4.4 ns at 3.3 V - supports high-speed data transfer in memory and bus applications up to ~100 MHz |
| Output Drive Strength | ±12 mA at VCC = 3.3 V - sufficient to drive standard CMOS loads and light stubs on PCB traces |
| Ioff Current | ±10 µA at VI/VO = 5.5 V - prevents damaging back-current during power sequencing or hot insertion |
| ESD Rating | 2000-V HBM, 1000-V CDM - meets industrial handling requirements without additional protection circuitry |
| Operating Temperature | –40°C to +125°C - qualified for extended-temperature industrial and automotive under-hood environments |
Pinout & Package
SN74LVC162244ADLR is packaged in a 48-pin SSOP (DL) with 0.635-mm pitch, 12.6 mm × 6.2 mm body size, and 1.2-mm max height - optimized for space-constrained industrial PCBs requiring thermal reliability and hand-soldering compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-low output enable (input) | Individually controls 4-bit output sections; tied high via pullup for default high-Z during power-up |
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 | Buffer input (I) | 16 total inputs accepting 5.5-V-tolerant signals; must be tied to VCC or GND if unused |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 | Noninverting 3-state output (O) | 16 true outputs with 26-Ω series resistance; high-Z when corresponding OE is high |
| VCC (Pins 7, 18, 31, 42) | Power supply | Four distributed VCC pins reduce switching noise and improve decoupling effectiveness |
| GND (Pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground reference | Eight GND pins provide low-inductance return paths and enhance signal integrity for all 16 drivers |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range | 1.65 V to 3.6 V operation enables single-supply use across multiple logic families without voltage conversion |
| 5.5-V-tolerant inputs | Eliminates need for external level translators when interfacing with 5-V microcontrollers or legacy peripherals |
| Ioff partial-power-down | Prevents current backflow during power sequencing or hot-swap events, protecting upstream and downstream circuitry |
| Integrated 26-Ω output series resistance | Reduces edge-induced ringing and EMI without requiring discrete termination resistors on PCB layout |
| Low ground bounce / VOH undershoot | Typical VOLP < 0.8 V and VOHV > 2 V at 3.3 V - maintains signal integrity in dense, high-speed digital systems |
Applications
| Memory Address Buffering | Industrial Backplane Bus Isolation |
|---|---|
|
Use Scenario: Driving address lines from a 3.3-V FPGA to multiple 5-V SRAM chips on a shared bus. IC Role / Device Role: Noninverting 3-state buffer translating and isolating address signals between voltage domains. Use Value: 5.5-V-tolerant inputs accept FPGA outputs directly; independent OE pins allow dynamic bus segment enable/disable. |
Use Scenario: Isolating control signals between two independently powered modules in an industrial PLC rack. IC Role / Device Role: Directional signal conditioner with Ioff support for safe hot-swap of field I/O cards. Use Value: Ioff blocks back-current when one module powers down; 125°C rating ensures reliability in enclosed enclosures. |
| Motor Drive Interface Logic | Test Equipment Signal Conditioning |
|
Use Scenario: Level-shifting PWM and direction signals from a 3.3-V MCU to gate drivers in a multi-phase motor controller. IC Role / Device Role: Robust interface buffer providing noise-immune signal transmission and output impedance matching. Use Value: Integrated 26-Ω series resistance damps fast edges, reducing EMI coupling into sensitive analog feedback paths. |
Use Scenario: Routing programmable digital stimulus signals from a 3.3-V pattern generator to DUT pins with variable load conditions. IC Role / Device Role: Configurable 16-bit driver enabling flexible pin assignment and per-channel enable control. Use Value: Four independent OE inputs allow selective activation of test vectors; ±12 mA drive handles capacitive probe loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC162244ADGGR | TSSOP-48 (DGG) package; identical electrical specs and pinout; 24.4-mm width vs. DL's 12.6 mm | Better thermal dissipation (RθJA = 64.3°C/W vs. 68.4°C/W) but requires larger PCB footprint | Select when board layout prioritizes thermal performance over space constraints |
| SN74LVC162244ADGVR | TVSOP-48 (DGV) package; same logic and timing; 16.4-mm width; thinner profile (1.2 mm max height) | Higher RθJA (78.4°C/W); suited for compact, low-profile designs where airflow is limited | Select for ultra-thin industrial modules where height clearance is critical and ambient temperature remains ≤85°C |
Compared with SN74LVC162244ADGGR and SN74LVC162244ADGVR, the SN74LVC162244ADLR offers the narrowest body width (12.6 mm) and highest thermal resistance among DL/DGG/DGV variants - making it optimal for space-limited industrial PCBs where moderate power density and robust mechanical mounting are prioritized over minimal height or lowest junction-to-ambient resistance.
Availability
SN74LVC162244ADLR is available at Aetrix Electronics and suitable for industrial control backplanes, motor drive interfaces, and test equipment signal conditioning requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for SN74LVC162244ADLR 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-reliability industrial interface ICs.
The SN74LVC162244ADLR belongs to TI's LVC logic family - engineered for low-voltage operation, mixed-signal compatibility, and robustness in harsh industrial environments.
FAQ
What is the maximum input voltage the SN74LVC162244ADLR can tolerate?
The SN74LVC162244ADLR accepts input voltages up to 5.5 V across its entire recommended VCC range (1.65 V to 3.6 V), enabling direct connection to 5-V logic without external level shifters. This tolerance is specified in the Absolute Maximum Ratings table and confirmed in the Recommended Operating Conditions section of the datasheet.
Does the SN74LVC162244ADLR support hot-swap or partial power-down operation?
Yes, the SN74LVC162244ADLR includes Ioff circuitry that disables outputs and limits current flow when VCC = 0 V, allowing safe insertion or removal in partially powered systems. This feature is explicitly documented in the Features and Detailed Description sections, with Ioff leakage specified as ±10 µA at 5.5 V.
What package type is used for the SN74LVC162244ADLR?
The SN74LVC162244ADLR uses a 48-pin SSOP (Shrink Small Outline Package) with designation DL, measuring 12.6 mm × 6.2 mm with 0.635-mm lead pitch. This package is confirmed in the Mechanical, Packaging, and Orderable Information section and the Package Option Addendum.
How many independent output-enable controls does the SN74LVC162244ADLR have?
The SN74LVC162244ADLR has four independent active-low output-enable inputs - 1OE, 2OE, 3OE, and 4OE - each controlling a separate 4-bit buffer section. This architecture enables granular bus segmentation and dynamic signal routing, as detailed in the Functional Block Diagram and Pin Functions tables.
What is the typical propagation delay of the SN74LVC162244ADLR at 3.3 V?
The typical propagation delay (tpd) of the SN74LVC162244ADLR is 4.4 ns at VCC = 3.3 V, TA = 25°C, with a maximum of 5.6 ns under worst-case conditions. This value is specified in the Switching Characteristics table and validated across voltage and temperature ranges in Figure 1 and Figure 2 of the datasheet.
SN74LVC162244ADLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- 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:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-SSOP
SN74LVC162244ADLR FAQ
1.How can I place an order for SN74LVC162244ADLR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC162244ADLR 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 SN74LVC162244ADLR reliable?
The price and inventory of SN74LVC162244ADLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC162244ADLR is usually 5 days.
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Once your SN74LVC162244ADLR 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 SN74LVC162244ADLR?
For technical support, including SN74LVC162244ADLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC162244ADLR requirements.
6.How does Aetrix verify that SN74LVC162244ADLR is sourced from the original manufacturer or authorized distributors?
All SN74LVC162244ADLR 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 SN74LVC162244ADLR meets industry standards.
7.What is the process for return or replacement of SN74LVC162244ADLR?
All SN74LVC162244ADLR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC162244ADLR, 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 SN74LVC162244ADLR part is unused and in its original packaging.
Return procedure for SN74LVC162244ADLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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