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Texas Instruments SN74LVTH16244ADGVR
- Part No.:
- SN74LVTH16244ADGVR
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74LVTH16244ADGVR.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48TVSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,073
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Product details
Overview
SN74LVTH16244ADGVR from Texas Instruments is a 3.3-V ABT 16-bit noninverting buffer/driver with 3-state outputs, designed for mixed-mode TTL/3.3-V interfacing in bus-hold applications. It features true outputs, active-low OE inputs, bus-hold circuitry eliminating external pull resistors, Ioff support for hot insertion, and operates from 2.7 V to 3.6 V. It is used in industrial backplane interfaces requiring level translation between 5-V logic and 3.3-V systems.
For engineers reviewing the SN74LVTH16244ADGVR datasheet, SN74LVTH16244ADGVR pinout, SN74LVTH16244ADGVR application, or SN74LVTH16244ADGVR equivalent, key selection criteria include its 48-pin TVSOP (DGV) package, 32-mA low-level output drive at 3.3 V, bus-hold input retention, Ioff-enabled hot-swap capability, and compatibility with 5-V-tolerant inputs while powered from 3.3-V rails.
Technical Context
This device implements four independent 4-bit buffer sections, each with symmetrical active-low output-enable control and true (noninverting) logic. Its Advanced BiCMOS Technology (ABT) architecture delivers low static power dissipation (<0.19 mA ICC in disabled state) and high-speed switching (tPLH/tPHL ≤ 4.6 ns at VCC = 3.3 V, CL = 50 pF).
The integrated bus-hold circuitry maintains valid logic states on unused inputs without external components, and Ioff protection limits current flow during power-down. Power-up 3-state ensures outputs remain high-impedance during supply ramping, preventing bus contention in hot-plug environments.
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. |
| IOL / IOH | 64 mA / –32 mA at VCC = 3.3 V - drives heavy capacitive loads or multiple TTL inputs directly. |
| Input Voltage Tolerance | Up to 5.5 V - enables direct connection to 5-V systems without level-shifting circuitry. |
| Bus-Hold Current | ±750 μA max - actively retains input state without external pull resistors, reducing BOM count. |
| tPLH / tPHL | ≤ 4.6 ns at VCC = 3.3 V, CL = 50 pF - meets timing requirements for high-speed data buses up to ~200 MHz. |
| Ioff Leakage | ±100 μA at VCC = 0 V - prevents damaging backflow currents during hot insertion or partial power-down. |
| VOL / VOH | 0.55 V / 2.0 V at IOL = 64 mA / IOH = –32 mA - ensures robust noise margins in noisy industrial environments. |
Pinout & Package
SN74LVTH16244ADGVR uses a 48-pin Thin Very Small Outline Package (TVSOP), designated DGV, with 0.4 mm lead pitch, 3.6 mm body width, and 1.2 mm maximum height. Pin 1 is located at the top-left corner with a beveled edge indicator.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-low output-enable control per 4-bit section | Independent gating of four buffer groups; asserted low enables corresponding Y outputs. |
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 | Data inputs (16 total) | Accept 5-V-tolerant signals; bus-hold circuitry retains last valid state when floating. |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 | True (noninverting) buffered outputs (16 total) | Drive 3.3-V loads with 32-mA sink/source capability; 3-state when OE is high. |
| VCC (Pins 7, 18, 31, 42) | Power supply | Four dedicated VCC pins reduce IR drop and improve noise immunity across wide bus. |
| GND (Pins 4, 10, 15, 21, 27, 32, 37, 43) | Ground reference | Eight GND pins provide low-inductance return paths for high-speed switching currents. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode signal operation | 5-V input tolerance with 3.3-V VCC enables seamless interface between legacy 5-V logic and modern low-voltage systems. |
| Bus-hold circuitry | Eliminates need for external pullup/pulldown resistors on all 16 inputs, reducing PCB area and component count. |
| Ioff and power-up 3-state | Prevents current backflow during hot insertion and forces outputs into high-Z during power ramp, avoiding bus conflicts. |
| Low output ground bounce | VOLP < 0.8 V at VCC = 3.3 V ensures stable logic thresholds under fast switching conditions. |
| Latch-up immunity | Exceeds 500 mA per JESD 17 - suitable for harsh industrial environments with transient coupling risks. |
Applications
| Industrial Backplane Interface | Automated Test Equipment (ATE) Signal Routing |
|---|---|
|
Use Scenario: Interfacing FPGA I/O banks (3.3-V) to legacy 5-V peripheral modules on a shared backplane. IC Role / Device Role: Level-translating buffer isolating voltage domains while maintaining signal integrity across 16 parallel lines. Use Value: Eliminates discrete level shifters; bus-hold prevents floating inputs during module hot-swap; Ioff protects FPGA during partial power-down. |
Use Scenario: Routing digital stimulus and response signals between controller and DUT in modular ATE racks. IC Role / Device Role: Bidirectional 16-bit bus driver enabling flexible path configuration via OE control per group. Use Value: 64-mA sink capability drives long traces and multiple DUT inputs; tPLH ≤ 4.6 ns supports >200-MHz test clock rates. |
| Programmable Logic Controller (PLC) I/O Expansion | Medical Imaging Data Acquisition Bus |
|
Use Scenario: Extending digital I/O capacity in DIN-rail mounted PLCs using standardized 3.3-V microcontrollers and 5-V field sensors. IC Role / Device Role: Robust 16-bit buffer with ESD protection (>2000-V HBM) and latch-up immunity for industrial noise immunity. Use Value: Withstands 2.7–3.6 V supply variation from industrial SMPS; 5-V tolerant inputs accept direct sensor outputs without clamping diodes. |
Use Scenario: Aggregating parallel ADC outputs from multi-channel imaging front-ends into a central processing unit. IC Role / Device Role: Low-skew, high-drive buffer preserving timing alignment across 16-bit pixel data lanes. Use Value: Matched propagation delays (tsk(LH)/tsk(HL) ≤ 0.5 ns) minimize inter-lane skew; VOLP < 0.8 V prevents false triggering in sensitive analog-adjacent layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16244ADGVR | Lower drive strength (24 mA IOL), no bus-hold, 1.65–3.6 V VCC range | Suitable for lower-power, fully 3.3-V-only systems without 5-V interface needs | Select when cost and power are prioritized over 5-V tolerance and bus-hold retention. |
| SN74ALVCH16244DGVR | Higher speed (tPLH ≤ 3.2 ns), 1.65–3.6 V VCC, no Ioff or bus-hold | Better for high-frequency data paths where hot-swap and floating-input handling are not required | Choose when sub-3-ns propagation delay is critical and system-level hot-insertion is managed externally. |
Compared with SN74LVC16244ADGVR and SN74ALVCH16244DGVR, the SN74LVTH16244ADGVR uniquely combines 5-V input tolerance, integrated bus-hold, and Ioff-enabled hot-swap-making it the only option among the three qualified for mixed-voltage industrial backplanes with unplanned module replacement.
Availability
SN74LVTH16244ADGVR is available at Aetrix Electronics and suitable for industrial automation, automated test equipment, and medical imaging systems requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for SN74LVTH16244ADGVR 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 connectivity technologies, with decades of experience in industrial-grade logic and interface solutions.
The SN74LVTH16244ADGVR belongs to TI's Widebus™ ABT family, engineered specifically for robust 3.3-V bus interfacing in mixed-voltage systems where reliability, hot-swap capability, and 5-V signal compatibility are mandatory.
FAQ
What is the operating voltage range for SN74LVTH16244ADGVR?
The SN74LVTH16244ADGVR operates from 2.7 V to 3.6 V on VCC. Its inputs tolerate up to 5.5 V, enabling direct interfacing with 5-V logic while powered from a 3.3-V rail. This range supports unregulated battery operation down to 2.7 V without functional degradation, as verified in TI's recommended operating conditions table.
Does SN74LVTH16244ADGVR support hot insertion?
Yes, SN74LVTH16244ADGVR supports hot insertion via two complementary features: Ioff circuitry disables outputs when VCC = 0 V to prevent backflow current, and power-up 3-state holds outputs in high-impedance during supply ramping. These are explicitly documented in the Features and Electrical Characteristics sections of the TI datasheet SCBS142U.
How does the bus-hold feature work on SN74LVTH16244ADGVR?
The bus-hold circuitry on SN74LVTH16244ADGVR actively maintains the last valid logic state on each of the 16 inputs when left floating, eliminating the need for external pullup or pulldown resistors. It provides ±750 μA dynamic hold current (per TI datasheet Section 6), ensuring stable operation in systems with intermittent or undriven signal lines.
What package type is SN74LVTH16244ADGVR supplied in?
SN74LVTH16244ADGVR is supplied in a 48-pin Thin Very Small Outline Package (TVSOP), TI package code DGV. It measures 3.6 mm × 9.7 mm with 0.4 mm lead pitch and 1.2 mm maximum height, optimized for high-density PCB layouts and compatible with standard SMT reflow profiles (MSL Level-1-260°C-UNLIM).
Can SN74LVTH16244ADGVR drive multiple TTL loads?
Yes, SN74LVTH16244ADGVR can drive multiple TTL loads: its 64-mA low-level output current (IOL) and –32-mA high-level output current (IOH) at VCC = 3.3 V exceed the combined input current requirements of up to 16 standard TTL inputs (each ~1.6 mA), as confirmed by TI's Electrical Characteristics table and application note SCBA004.
SN74LVTH16244ADGVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVTH
- 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:
- 32mA, 64mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TVSOP
SN74LVTH16244ADGVR FAQ
1.How can I place an order for SN74LVTH16244ADGVR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVTH16244ADGVR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
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The price and inventory of SN74LVTH16244ADGVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVTH16244ADGVR is usually 5 days.
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Once your SN74LVTH16244ADGVR 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 SN74LVTH16244ADGVR?
For technical support, including SN74LVTH16244ADGVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVTH16244ADGVR requirements.
6.How does Aetrix verify that SN74LVTH16244ADGVR is sourced from the original manufacturer or authorized distributors?
All SN74LVTH16244ADGVR 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 SN74LVTH16244ADGVR meets industry standards.
7.What is the process for return or replacement of SN74LVTH16244ADGVR?
All SN74LVTH16244ADGVR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVTH16244ADGVR, 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 SN74LVTH16244ADGVR part is unused and in its original packaging.
Return procedure for SN74LVTH16244ADGVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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