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Texas Instruments SN74LVT16244BDGVR
- Part No.:
- SN74LVT16244BDGVR
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74LVT16244BDGVR.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48TVSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,826
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Product details
Overview
SN74LVT16244BDGVR 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 noninverting outputs, four independent 4-bit sections with active-low output-enable inputs (1OE–4OE), and supports mixed-mode operation with 5-V-tolerant inputs while powered at VCC = 2.7–3.6 V. It is used in bus interface, memory address driving, and level-shifting applications in industrial control backplanes.
For engineers reviewing the SN74LVT16244BDGVR datasheet, SN74LVT16244BDGVR pinout, SN74LVT16244BDGVR application, or SN74LVT16244BDGVR equivalent, key selection considerations include its 3.3-V ABT process enabling low static power, Ioff and power-up 3-state for hot insertion, ±100 µA off-state leakage, and guaranteed 48 mA low-level output drive at VCC = 2.7 V.
Technical Context
The SN74LVT16244BDGVR implements four independent 4-bit noninverting buffers, each with dedicated active-low output-enable (OE) control. Its Advanced BiCMOS Technology (ABT) enables TTL-compatible 5-V input tolerance while operating from a 2.7–3.6-V supply, supporting mixed-voltage system interfacing without external level shifters.
It features Ioff circuitry that disables outputs when VCC = 0 V to prevent current backflow during hot insertion, and power-up 3-state logic that holds outputs high-impedance during power ramping. Absolute maximum ratings include VI up to 7 V and VO up to 7 V in high-Z state, ensuring robustness in noisy or undervoltage conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - Enables stable operation across unregulated battery rails down to 2.7 V. |
| IOL (min) | 48 mA at VCC = 2.7 V - Drives heavy capacitive loads or multiple TTL inputs without signal degradation. |
| VIH / VIL | 2.0 V / 0.8 V - Compatible with standard 5-V TTL logic thresholds despite 3.3-V supply. |
| tPLH / tPHL (max) | 4.6 ns at VCC = 2.7 V - Supports high-speed bus buffering up to ~200 MHz data rates under worst-case voltage/temperature. |
| Ioff (max) | ±100 µA at VCC = 0 V - Prevents damaging back-current during live board insertion or partial power-down. |
| IOZH / IOZL (max) | ±5 µA at VCC = 3.6 V - Ensures minimal leakage in 3-state mode, critical for low-power standby states. |
| θJA | 58 °C/W - Matches thermal performance of TSSOP packages, enabling use in compact industrial PCB layouts. |
Pinout & Package
SN74LVT16244BDGVR uses a 48-pin Thin Very Small Outline Package (TVSOP, DGV), JEDEC MO-153 compliant, with 0.4 mm pitch, 12.6 mm × 6.1 mm body size, and max height of 1.2 mm - optimized for space-constrained industrial and telecom modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE–4OE | Active-low output-enable control inputs | Each independently gates one 4-bit buffer section; tied high via pullup to ensure Hi-Z on power-up if VCC < 1.5 V. |
| 1A1–4A4 | Data inputs (16 total) | True noninverting inputs; tolerate 0–5.5 V regardless of VCC, enabling direct connection to 5-V buses. |
| 1Y1–4Y4 | Buffered outputs (16 total) | 3-state outputs with symmetrical drive strength; VOL ≤ 0.5 V at 48 mA ensures solid TTL LOW recognition. |
| VCC, GND | Power and ground terminals | Four VCC and four GND pins distributed across package to minimize switching noise and improve PSRR. |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode signal operation | 5-V-tolerant inputs with 3.3-V VCC eliminates need for discrete level translators in 3.3/5-V hybrid systems. |
| Hot-insertion support | Ioff + power-up 3-state prevents bus contention and backdrive damage during live card replacement in telecom or server backplanes. |
| Low ground bounce | VOLP < 0.8 V at VCC = 3.3 V ensures signal integrity during simultaneous output switching in dense PCB layouts. |
| Wide supply range | Operates down to 2.7 V allows direct use with single-cell Li-ion or regulated 3.3-V supplies without brownout reset circuitry. |
| Latch-up immunity | >100 mA per JESD 78 Class II guarantees robustness against transient overvoltage events in industrial environments. |
Applications
| Bus Interface Buffering | Memory Address Driver |
|---|---|
Use Scenario: Isolating and strengthening address/data lines between a 3.3-V FPGA and legacy 5-V peripheral bus. IC Role / Device Role / Timing Role: Noninverting 16-bit buffer with per-section OE control, providing timing-transparent signal amplification and voltage translation. Use Value: Eliminates need for external level shifters while maintaining sub-5 ns propagation delay and 48 mA drive capability per output. | Use Scenario: Driving high-capacitance memory address lines (e.g., SRAM, Flash) in an industrial PLC controller. IC Role / Device Role / Timing Role: Low-skew 16-bit address driver with matched tPLH/tPHL to prevent address decode glitches during fast access cycles. Use Value: VOL ≤ 0.5 V at 48 mA ensures reliable LOW-level recognition across long traces, even with 50 pF load capacitance. |
| Hot-Swappable Module Interface | Backplane Signal Conditioning |
Use Scenario: Enabling safe insertion/removal of I/O modules into a powered 3U CompactPCI carrier with shared 5-V backplane. IC Role / Device Role / Timing Role: Hot-insertion–qualified buffer with Ioff and power-up 3-state, isolating module logic from backplane during insertion. Use Value: ±100 µA Ioff prevents back-current flow; power-up 3-state avoids bus conflicts during VCC ramp, meeting PICMG 2.0 requirements. | Use Scenario: Strengthening and cleaning clock or control signals routed across a multi-layer 48-slot telecom backplane. IC Role / Device Role / Timing Role: Low-noise 16-bit line driver with symmetrical rise/fall times and <0.8 V ground bounce for EMI-sensitive timing paths. Use Value: 58 °C/W θJA and distributed VCC/GND pins reduce thermal stress and crosstalk in high-density backplane slots. |
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 |
|---|---|---|---|
| SN74LVC16244ADGGR | Lower drive (24 mA IOL), 1.65–3.6 V VCC range, no 5-V-tolerant inputs | Suitable only for pure 3.3-V or lower-voltage systems; cannot interface directly to 5-V buses | Select when cost and power are prioritized over mixed-voltage compatibility and higher drive strength. |
| 74ALVC16244DGGR | Same 5-V-tolerant inputs, but 1.65–3.6 V VCC; slightly slower (tPLH max 5.2 ns at 2.7 V) | Compatible in 5-V interface role but less tolerant of battery droop below 2.7 V | Choose when footprint compatibility is required and system VCC remains ≥2.7 V with tighter regulation. |
Compared with SN74LVC16244ADGGR and 74ALVC16244DGGR, the SN74LVT16244BDGVR uniquely delivers 48 mA drive at 2.7 V with full 5-V input tolerance - making it the only option among the three qualified for unregulated 3.3-V rail operation in hot-swap and legacy bus interfacing.
Availability
SN74LVT16244BDGVR is available at Aetrix Electronics and suitable for industrial PLC backplanes, telecom module interfaces, and embedded memory subsystems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for SN74LVT16244BDGVR 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 heritage in high-reliability interface ICs.
The SN74LVT16244BDGVR belongs to TI's Widebus™ family of ABT logic devices, engineered specifically for robust 3.3-V bus interfacing in mixed-voltage industrial, telecom, and computing systems.
FAQ
What is the maximum input voltage rating for SN74LVT16244BDGVR?
The SN74LVT16244BDGVR supports an input voltage range of –0.5 V to 7 V, allowing direct connection to 5-V logic buses while powered from a 3.3-V supply. This 5-V tolerance is maintained across the full recommended operating temperature range (–40°C to 85°C) and does not require external clamping circuitry.
Does SN74LVT16244BDGVR support hot insertion, and how is it implemented?
Yes, SN74LVT16244BDGVR supports hot insertion via two integrated features: Ioff circuitry disables outputs when VCC = 0 V to block reverse current, and power-up 3-state logic forces outputs into high-impedance during VCC ramp-up. Both functions are inherent to the ABT process and require no external components to meet PICMG or IEEE 1101.10 compliance.
What is the output drive capability of SN74LVT16244BDGVR at minimum supply voltage?
At VCC = 2.7 V, SN74LVT16244BDGVR guarantees 48 mA low-level output current (IOL) and 24 mA high-level output current (IOH), enabling reliable driving of multiple TTL loads or 50-pF transmission lines without signal degradation - a key advantage over LVC-series alternatives at low VCC.
Can SN74LVT16244BDGVR be used in systems with undervoltage lockout below 2.7 V?
Yes - SN74LVT16244BDGVR remains functional down to VCC = 2.7 V, and enters a high-impedance state when VCC drops below 1.5 V. To ensure predictable Hi-Z behavior above 1.5 V, OE inputs must be pulled up to VCC; the minimum pullup resistor value depends on the driver's sink capability, typically ≤10 kΩ for robust margin.
What package variant and marking correspond to SN74LVT16244BDGVR?
SN74LVT16244BDGVR is supplied in a 48-pin TVSOP (DGV) package, JEDEC MO-153 compliant, with dimensions 12.6 mm × 6.1 mm × 1.2 mm max. Its top-side marking is "VD244B", and it ships in tape-and-reel format (2000 units per reel) with MSL Level-1 rating and NIPDAU lead finish.
SN74LVT16244BDGVR 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:
- 32mA, 64mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TVSOP
SN74LVT16244BDGVR FAQ
1.How can I place an order for SN74LVT16244BDGVR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVT16244BDGVR 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 SN74LVT16244BDGVR reliable?
The price and inventory of SN74LVT16244BDGVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVT16244BDGVR is usually 5 days.
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Once your SN74LVT16244BDGVR 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 SN74LVT16244BDGVR?
For technical support, including SN74LVT16244BDGVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVT16244BDGVR requirements.
6.How does Aetrix verify that SN74LVT16244BDGVR is sourced from the original manufacturer or authorized distributors?
All SN74LVT16244BDGVR 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 SN74LVT16244BDGVR meets industry standards.
7.What is the process for return or replacement of SN74LVT16244BDGVR?
All SN74LVT16244BDGVR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVT16244BDGVR, 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 SN74LVT16244BDGVR part is unused and in its original packaging.
Return procedure for SN74LVT16244BDGVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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