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Texas Instruments SN74LVTH162244DGGR
- Part No.:
- SN74LVTH162244DGGR
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
SN74LVTH162244DGGR.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,277
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Product details
Overview
SN74LVTH162244 from Texas Instruments is a 3.3-V ABT 16-bit buffer/driver with 3-state outputs, designed for mixed-mode interfacing between 3.3-V logic and 5-V systems. It provides true outputs, four independent 4-bit channels, bus-hold on all inputs, and integrated 22-Ω series output resistors to suppress overshoot/undershoot in high-speed PCB traces.
For engineers reviewing the SN74LVTH162244 datasheet, SN74LVTH162244 pinout, SN74LVTH162244 application, or SN74LVTH162244 equivalent, key selection criteria include its 2.7–3.6-V VCC range, ±12-mA drive strength, hot-insertion support via Ioff and power-up 3-state, bus-hold functionality eliminating external resistors, and TSSOP-48 (DGG) package compatibility with dense routing layouts.
Technical Context
The SN74LVTH162244 implements a flow-through architecture with distributed VCC/GND pins to minimize switching noise and optimize signal integrity. Its four independent 4-bit buffers each feature symmetrical active-low OE inputs and true (non-inverting) outputs.
Bus-hold circuitry actively maintains valid logic states on undriven inputs without external pullups/pulldowns, while Ioff and power-up 3-state ensure safe hot insertion by disabling outputs during power transitions and preventing backflow current when powered down.
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 and stable 3.3-V rail tolerance. |
| Output Drive | ±12 mA - sufficient to drive standard TTL loads and moderate capacitive traces without external buffering. |
| Input Voltage | Up to 5.5 V - enables direct 5-V input interfacing while operating at 3.3-V VCC. |
| Propagation Delay | 1.1–4.8 ns (VCC = 3.3 V) - ensures timing compliance in high-speed data paths up to ~200 MHz. |
| Bus-Hold Current | ±75 µA (min) - maintains stable logic levels on floating inputs without external components. |
| IOFF Leakage | ±100 µA - prevents damaging backflow current during hot-swap or partial power-down conditions. |
| ESD Rating | 2000-V HBM, 200-V MM - exceeds JEDEC standards for robust handling in manufacturing and field environments. |
Pinout & Package
TSSOP-48 (DGG) package: 12.5 mm × 6.1 mm × 1.2 mm body, 0.5-mm lead pitch, gull-wing leads, RoHS-compliant NiPdAu finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE–4OE | Active-low output enable | Independent control per 4-bit group; asserts high-impedance state when high. |
| 1A1–4A4 | Data inputs | 16 total inputs with bus-hold; tolerate 5-V signals at 3.3-V VCC. |
| 1Y1–4Y4 | True buffered outputs | 16 outputs with integrated 22-Ω series resistors; source/sink ±12 mA. |
| VCC / GND | Power supply | Distributed across package (10× VCC, 10× GND) to reduce simultaneous switching noise. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 22-Ω output series resistors | Eliminates need for discrete termination resistors, reducing BOM count and PCB area. |
| Mixed-mode voltage interface | Accepts 5-V inputs and drives 5-V loads while powered from 3.3-V VCC - simplifies level-shifting in hybrid systems. |
| Bus-hold on all inputs | Prevents floating-input metastability without external pullup/pulldown resistors - improves reliability and reduces layout complexity. |
| Ioff and power-up 3-state | Enables hot insertion by disabling outputs during power transitions - critical for modular backplane and hot-swap applications. |
| Flow-through pinout | Input/output pairs aligned across package edges - minimizes trace crossovers and eases high-density PCB routing. |
Applications
| Industrial PLC Backplanes | Automotive Infotainment Gateways |
|---|---|
Use Scenario: Interfacing 3.3-V microcontroller I/O with legacy 5-V peripheral buses in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional 16-bit buffer isolating voltage domains while preserving signal integrity and timing margins. Use Value: Eliminates discrete level shifters and termination resistors, reducing component count and improving EMI performance via distributed power pins. | Use Scenario: Driving multiple 5-V display interface lines (e.g., RGB, control signals) from a 3.3-V SoC in automotive head units. IC Role / Device Role / Timing Role: True-output driver with sub-5-ns propagation delay ensuring pixel clock and sync signal alignment. Use Value: Integrated bus-hold prevents undefined states during boot or sleep transitions, enhancing system robustness in noisy vehicle environments. |
| Telecom Line Card Interfaces | Test Equipment Signal Conditioning |
Use Scenario: Buffering configuration and status signals between 3.3-V FPGA management logic and 5-V line-side transceivers. IC Role / Device Role / Timing Role: 3-state-enabled isolation device enabling shared bus arbitration and dynamic reconfiguration. Use Value: Ioff protection prevents backfeed into powered-down sections during field upgrades - essential for carrier-grade hot-swap compliance. | Use Scenario: Driving calibrated test signals into DUTs with variable load capacitance and voltage thresholds. IC Role / Device Role / Timing Role: Precision 16-bit driver with matched rise/fall times and low ground bounce (<0.8 V). Use Value: On-die 22-Ω resistors suppress reflections on 50-Ω transmission lines, improving measurement repeatability and signal fidelity. |
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 |
|---|---|---|---|
| SN74LVC162244DGGR | LVC family: lower drive (±24 mA), no bus-hold, no integrated series resistors, 1.65–3.6-V VCC. | Suitable for pure 3.3-V systems only; requires external termination and pull resistors. | Choose when higher drive strength is needed and mixed-voltage operation is unnecessary. |
| SN74ALVCH162244DGGR | ALVCH family: 2.3–3.6-V VCC, ±24 mA drive, bus-hold, no integrated resistors, faster tPLH/tPHL (~2.5 ns). | Better suited for high-speed 3.3-V-only buses; lacks 5-V tolerant inputs. | Select for maximum speed in 3.3-V domain where 5-V compatibility is not required. |
Compared with SN74LVC162244DGGR and SN74ALVCH162244DGGR, the SN74LVTH162244 offers unique 5-V input tolerance and built-in 22-Ω termination - making it the only option among the three that eliminates external components while supporting mixed-voltage backplane interconnects.
Availability
SN74LVTH162244 is available at Aetrix Electronics and suitable for industrial automation, automotive infotainment gateways, and telecom line card designs requiring stable component supply, long-term lifecycle support, and guaranteed RoHS-compliant sourcing.
Supply support for SN74LVTH162244 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 SN74LVTH162244 belongs to TI's Widebus™ family of advanced bus-interface devices, engineered specifically for high-speed, mixed-voltage board-level interconnects in demanding real-time systems.
FAQ
What is the maximum input voltage rating for SN74LVTH162244?
The SN74LVTH162244 supports input voltages up to 5.5 V, enabling direct interfacing with 5-V TTL logic while operating from a 3.3-V supply. This 5-V tolerance is specified across the full recommended operating temperature range (–40°C to 85°C) and is validated per TI's absolute maximum ratings table.
Does SN74LVTH162244 require external pullup or pulldown resistors on its inputs?
No, SN74LVTH162244 does not require external pullup or pulldown resistors because it integrates active bus-hold circuitry on all data inputs. This feature maintains valid logic states on undriven or floating inputs, and using external resistors with bus-hold is explicitly discouraged in the datasheet.
Can SN74LVTH162244 be used in hot-swap applications?
Yes, SN74LVTH162244 is fully specified for hot-insertion applications. Its Ioff circuitry disables outputs when VCC = 0 V, preventing damaging current backflow, and its power-up 3-state function places outputs in high-impedance during power transitions - both features are verified per JEDEC standards.
What is the purpose of the 22-Ω series resistors integrated into SN74LVTH162244 outputs?
The 22-Ω series resistors integrated into each SN74LVTH162244 output are designed to dampen signal reflections and reduce overshoot/undershoot on PCB traces. They eliminate the need for discrete termination resistors, simplifying layout and improving signal integrity in high-speed digital interfaces.
How many independent 3-state control inputs does SN74LVTH162244 provide?
SN74LVTH162244 provides four independent active-low 3-state control inputs: 1OE, 2OE, 3OE, and 4OE - one for each 4-bit buffer section. This allows granular control over output enable/disable states, supporting flexible bus partitioning and power management strategies.
SN74LVTH162244DGGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVTH
- Package/Case:
- 48-TFSOP (0.240", 6.10mm 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-TSSOP
SN74LVTH162244DGGR FAQ
1.How can I place an order for SN74LVTH162244DGGR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVTH162244DGGR 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 SN74LVTH162244DGGR reliable?
The price and inventory of SN74LVTH162244DGGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVTH162244DGGR is usually 5 days.
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Once your SN74LVTH162244DGGR order is processed, you will receive an email with the shipment details and tracking number.
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5.How can I obtain technical support or documentation for SN74LVTH162244DGGR?
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6.How does Aetrix verify that SN74LVTH162244DGGR is sourced from the original manufacturer or authorized distributors?
All SN74LVTH162244DGGR 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 SN74LVTH162244DGGR meets industry standards.
7.What is the process for return or replacement of SN74LVTH162244DGGR?
All SN74LVTH162244DGGR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVTH162244DGGR, 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 SN74LVTH162244DGGR part is unused and in its original packaging.
Return procedure for SN74LVTH162244DGGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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