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Texas Instruments SN74LVT162244ADGVR
- Part No.:
- SN74LVT162244ADGVR
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74LVT162244ADGVR.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48TVSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,006
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Product details
Overview
SN74LVT162244ADGVR from Texas Instruments is a 3.3-V ABT 16-bit buffer/driver with 3-state outputs in a 48-pin TVSOP (DGV) package. It provides true-output buffering for 16-bit data paths, supports mixed-mode 5-V/3.3-V interfacing, delivers ±12 mA drive strength per output, and integrates 22-Ω series output resistors to suppress overshoot/undershoot - used in high-speed bus interface applications between legacy 5-V logic and modern low-voltage systems.
For engineers reviewing the SN74LVT162244ADGVR datasheet, SN74LVT162244ADGVR pinout, SN74LVT162244ADGVR application, or SN74LVT162244ADGVR equivalent, key selection criteria include its 3.3-V VCC operation with 5-V tolerant inputs, hot-insertion support via Ioff and power-up 3-state, distributed VCC/GND pinning for noise reduction, and flow-through pin architecture optimizing PCB layout.
Technical Context
The SN74LVT162244ADGVR implements four independent 4-bit noninverting buffers, each with an active-low output-enable (OE) control. Its ABT (Advanced BiCMOS Technology) core enables TTL-compatible output levels while operating at 3.3-V supply, with input thresholds compatible with both 3.3-V and 5-V logic families.
It features distributed power and ground pins across the 48-pin TVSOP footprint to minimize simultaneous switching noise, and its flow-through pinout places inputs on one side and corresponding outputs on the opposite side - reducing trace crossovers and improving signal integrity in dense bus routing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - supports regulated and unregulated battery operation down to 2.7 V without functional degradation. |
| IOL / IOH | ±12 mA per output - sufficient to drive standard TTL loads and short PCB traces without external termination. |
| Input Voltage Tolerance | Up to 5.5 V - enables direct connection to 5-V microcontrollers or FPGAs without level-shifting circuitry. |
| Output Series Resistance | 22 Ω integrated - eliminates need for external series resistors to dampen ringing on high-speed data lines. |
| tPLH / tPHL | Typ. 3.4 ns at VCC = 3.3 V - ensures sub-4 ns propagation delay for 100+ MHz bus timing margins. |
| Ioff Current | ±100 µA at VCC = 0 - prevents backflow current during hot insertion, protecting powered-backplane systems. |
| θJA | 58 °C/W - thermal performance suitable for continuous operation in industrial ambient up to +85°C with minimal heatsinking. |
Pinout & Package
SN74LVT162244ADGVR uses a 48-pin Thin Very Small Outline Package (TVSOP, DGV), 7.1 mm × 4.4 mm body, 0.4 mm pitch, 1.2 mm max height, JEDEC MO-153 compliant. Pin 1 located at top-left corner with beveled edge marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-low output enable | Independent control of each 4-bit buffer group; asserted low enables outputs, high places them in high-impedance state. |
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 | Data inputs | 16 total inputs grouped into four 4-bit channels; accept 3.3-V or 5-V logic levels with no damage or latch-up risk. |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 | True buffered outputs | 16 total outputs with symmetrical drive, 22-Ω series resistance, and 5-V tolerant off-state voltage range. |
| VCC (Pins 7, 18, 31, 42) | Supply rail | Distributed power pins reduce IR drop and high-frequency impedance; must be decoupled locally with 0.1 µF ceramic capacitors. |
| GND (Pins 4, 10, 15, 27, 36, 45) | Ground reference | Six dedicated ground pins minimize ground bounce and improve noise immunity during simultaneous switching. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode 5-V/3.3-V interface | Enables direct connection between 5-V legacy peripherals and 3.3-V processors without external level shifters. |
| Integrated 22-Ω output series resistors | Eliminates 16 discrete resistors on PCB, reduces BOM count, and ensures consistent impedance matching across all outputs. |
| Hot-insertion support (Ioff + power-up 3-state) | Prevents bus contention and backdrive damage when inserting/removing cards into live backplanes or hot-swap systems. |
| Flow-through pin architecture | Inputs and outputs aligned on opposite sides of package - simplifies layer routing and minimizes vias in high-density layouts. |
| Distributed VCC/GND pinning | Reduces simultaneous switching noise by lowering inductance in power delivery network and improving return path integrity. |
Applications
| Industrial Backplane Interface | Memory Expansion Module |
|---|---|
Use Scenario: Interfacing a 3.3-V FPGA-based controller to legacy 5-V ISA or VMEbus peripherals in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional 16-bit buffer isolating voltage domains while preserving signal timing integrity across mixed-supply subsystems. Use Value: Eliminates need for discrete level translators and reduces propagation delay skew versus multi-chip solutions, enabling reliable 25-MHz bus operation. | Use Scenario: Adding external SRAM or Flash memory to a 3.3-V ARM Cortex-M7 microcontroller with 5-V tolerant address/data bus requirements. IC Role / Device Role / Timing Role: Unidirectional data driver amplifying and conditioning 16-bit parallel memory bus signals with controlled edge rates. Use Value: Integrated 22-Ω resistors suppress reflections on 10-cm traces, maintaining signal fidelity without added layout complexity or cost. |
| Hot-Swappable I/O Carrier Card | Test Equipment Digital Pattern Generator |
Use Scenario: Supporting hot-plug capability in modular test instrumentation where daughterboards connect to a powered mainframe backplane. IC Role / Device Role / Timing Role: Isolating card-local logic from backplane during insertion/removal using Ioff and power-up 3-state behavior. Use Value: Prevents damaging current injection into powered backplane rails, meeting IEC 61000-4-2 ESD and MIL-STD-1399 safety requirements. | Use Scenario: Driving high-fanout digital stimulus patterns from a pattern generator ASIC to multiple DUTs simultaneously. IC Role / Device Role / Timing Role: Fan-out buffer replicating 16-bit parallel test vectors with matched propagation delays across all channels. Use Value: Sub-4 ns channel-to-channel skew and <0.8 V ground bounce ensure deterministic timing alignment across 32+ DUT inputs. |
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 |
|---|---|---|---|
| SN74LVC162244ADGGR | Lower drive (±24 mA), 1.65–3.6 V VCC range, no integrated 22-Ω resistors, higher input capacitance (5 pF vs 4 pF). | Better suited for ultra-low-power portable designs; requires external termination for clean edges above 50 MHz. | Select when lower static current (<1 µA) and wider VCC range outweigh need for built-in damping. |
| SN74ALVCH162244DGGR | Higher speed (tPD typ. 2.8 ns), 1.65–3.6 V VCC, no integrated resistors, supports bus-hold on inputs. | Preferred for high-speed DDR control buses or applications requiring input bus-hold to prevent floating states. | Choose when sub-3 ns propagation and input stabilization are critical, and external termination is acceptable. |
Compared with SN74LVC162244ADGGR and SN74ALVCH162244DGGR, the SN74LVT162244ADGVR uniquely balances 5-V tolerance, integrated output damping, and industrial temperature support - making it optimal for robust, mixed-voltage bus bridging where layout simplicity and signal integrity are prioritized over minimum quiescent current or maximum speed.
Availability
SN74LVT162244ADGVR is available at Aetrix Electronics and suitable for industrial automation interfaces, test equipment signal routing, and embedded system memory expansion requiring stable component supply and long-term manufacturability.
Supply support for SN74LVT162244ADGVR 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions across industrial, automotive, and communications markets.
The SN74LVT162244ADGVR belongs to TI's Widebus™ family of ABT logic devices, engineered specifically for high-speed, mixed-voltage bus interfacing in industrial control, instrumentation, and computing infrastructure.
FAQ
What is the maximum operating temperature range for SN74LVT162244ADGVR?
The SN74LVT162244ADGVR is rated for operation from –40°C to +85°C ambient temperature. This industrial-grade range is validated per TI's recommended operating conditions and supported by thermal characterization (θJA = 58 °C/W), ensuring reliable performance in factory-floor controllers, test equipment enclosures, and outdoor communication nodes without forced cooling.
Does SN74LVT162244ADGVR require external pull-up resistors on OE pins?
Yes - to guarantee high-impedance state when VCC exceeds 1.5 V during power-up, OE pins should be tied to VCC via a pull-up resistor. The minimum value depends on the driver's current-sinking capability; TI recommends ≤10 kΩ for typical use. Leaving OE floating risks undefined output states and potential bus contention.
Can SN74LVT162244ADGVR safely interface with 5-V CMOS inputs?
Yes - the SN74LVT162244ADGVR accepts input voltages up to 5.5 V, making it compatible with standard 5-V CMOS logic families. Its input structure is designed to withstand 5-V signals at 3.3-V VCC without damage or latch-up, satisfying JESD 78 Class II latch-up immunity (>100 mA).
What is the purpose of the 22-Ω series resistors integrated into SN74LVT162244ADGVR outputs?
The 22-Ω series resistors in SN74LVT162244ADGVR outputs dampen signal reflections and reduce overshoot/undershoot on PCB traces. They eliminate the need for 16 discrete surface-mount resistors, simplify layout, improve signal integrity on 50–75 Ω transmission lines, and maintain consistent edge control across all 16 channels without tuning.
Is SN74LVT162244ADGVR pin-compatible with other packages in the LVT162244A family?
Yes - the SN74LVT162244ADGVR shares identical pinout and functionality with SN74LVT162244ADGGR (TSSOP) and SN74LVT162244ADLR (SSOP). All three use the same 48-pin arrangement, terminal assignments, and logic behavior, enabling drop-in replacement across package types based on board space and thermal requirements.
SN74LVT162244ADGVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVT
- Package/Case:
- 48-TFSOP (0.173", 4.40mm 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-TVSOP
SN74LVT162244ADGVR FAQ
1.How can I place an order for SN74LVT162244ADGVR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVT162244ADGVR 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 SN74LVT162244ADGVR reliable?
The price and inventory of SN74LVT162244ADGVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVT162244ADGVR is usually 5 days.
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SN74LVT162244ADGVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVT162244ADGVR 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 SN74LVT162244ADGVR?
For technical support, including SN74LVT162244ADGVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVT162244ADGVR requirements.
6.How does Aetrix verify that SN74LVT162244ADGVR is sourced from the original manufacturer or authorized distributors?
All SN74LVT162244ADGVR 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 SN74LVT162244ADGVR meets industry standards.
7.What is the process for return or replacement of SN74LVT162244ADGVR?
All SN74LVT162244ADGVR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVT162244ADGVR, 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 SN74LVT162244ADGVR part is unused and in its original packaging.
Return procedure for SN74LVT162244ADGVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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