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Texas Instruments 74LVT16244BDGGRG4
- Part No.:
- 74LVT16244BDGGRG4
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74LVT16244BDGGRG4.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,494
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Product details
Overview
74LVT16244BDGGRG4 from Texas Instruments is a 3.3-V ABT 16-bit noninverting buffer/driver with 3-state outputs, designed for mixed-mode signal interfacing between 3.3-V logic and 5-V systems. It features four independent 4-bit sections, each with active-low output-enable (OE), supports hot insertion via Ioff and power-up 3-state, and operates across –40°C to 85°C. Typical applications include bus interface buffering in industrial control backplanes.
For engineers reviewing the 74LVT16244BDGGRG4 datasheet, 74LVT16244BDGGRG4 pinout, 74LVT16244BDGGRG4 application, or 74LVT16244BDGGRG4 equivalent, key selection criteria include its 3.3-V VCC operation with 5-V tolerant inputs/outputs, ±64 mA output drive capability, low ground bounce (<0.8 V), and TSSOP-48 package compatibility with high-density PCB layouts.
Technical Context
The 74LVT16244BDGGRG4 implements Advanced BiCMOS Technology (ABT) for low static power and fast switching, enabling true-level translation without external level shifters. Its architecture includes symmetrical active-low OE controls per 4-bit group and internal power-up 3-state circuitry that forces outputs into high-impedance during VCC ramp-up/down.
Each of the four 4-bit buffers supports independent enable control (1OE–4OE), allowing selective bus segmentation. The device meets JESD 78 Class II latch-up immunity (>100 mA) and exceeds JESD 22 ESD ratings (2000-V HBM, 200-V MM, 1000-V CDM), making it suitable for rugged industrial environments where signal integrity and robustness are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply Voltage | 2.7 V to 3.6 V - ensures stable operation under unregulated battery supply down to 2.7 V |
| Output Drive (IOL) | 64 mA per output - sufficient to drive heavy capacitive loads or multiple TTL inputs |
| Input Voltage Range | –0.5 V to 5.5 V - enables direct interfacing with 5-V logic without external clamping |
| Propagation Delay (tPLH/tPHL) | 2.3 ns typical at VCC = 3.3 V - supports high-speed data transfer up to ~200 MHz bus rates |
| Power-Up 3-State | Active below 1.5 V VCC - prevents bus contention during power sequencing |
| Ioff Current | ±100 µA at VCC = 0 - blocks damaging backflow current during hot insertion or partial power-down |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded systems |
Pinout & Package
TSSOP-48 (DGG) package: 48-pin thin shrink small-outline package, 12.6 mm × 6.1 mm body, 0.5 mm pitch, 1.2 mm max height, JEDEC MO-153 compliant, RoHS-compliant NIPDAU lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE–4OE | Active-low output-enable inputs | Independently disable each 4-bit buffer section; tied high via pullup for default high-Z state |
| 1A1–4A4 | Data inputs | 16 total inputs grouped as four 4-bit buses; accept 5-V logic levels safely |
| 1Y1–4Y4 | True buffered outputs | 16 noninverting outputs with 3-state control; drive 50-pF loads with <3.7 ns delay |
| VCC (Pins 7, 18, 31, 42) | Supply voltage | Four dedicated VCC pins reduce IR drop and improve noise immunity across wide bus |
| GND (Pins 4, 10, 15, 27, 36, 45) | Ground reference | Six GND pins provide low-inductance return paths for all output groups |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode voltage tolerance | 5-V input/output compatibility with 3.3-V VCC eliminates need for discrete level translators |
| Hot-insertion support | Ioff and power-up 3-state prevent backdrive damage and bus conflicts during live board replacement |
| Low ground bounce | Typical VOLP <0.8 V at VCC = 3.3 V reduces switching noise coupling into analog sections |
| High latch-up immunity | Exceeds 100 mA per JESD 78 Class II - ensures reliability in noisy industrial power environments |
| ESD robustness | 2000-V HBM rating enables handling in standard assembly lines without special ESD controls |
Applications
| Industrial Backplane Bus Buffering | Automotive Body Control Module Interface |
|---|---|
Use Scenario: Isolating and driving parallel address/data buses between 3.3-V microcontrollers and legacy 5-V peripheral cards in programmable logic controllers. IC Role / Device Role / Timing Role: Noninverting 16-bit buffer providing level-shifted, high-drive signal regeneration with independent 4-bit enable control. Use Value: Enables seamless integration of modern low-voltage MCUs into existing 5-V infrastructure without redesigning power domains or adding discrete translators. | Use Scenario: Interfacing a 3.3-V CAN controller MCU to 5-V sensor clusters and actuator drivers in body electronics modules. IC Role / Device Role / Timing Role: Bidirectional voltage-tolerant buffer isolating MCU GPIO banks from higher-voltage subsystems while maintaining timing integrity. Use Value: Reduces BOM count by replacing dual-supply level shifters and discrete buffers, lowering layout complexity and test overhead. |
| Test Equipment Digital I/O Expansion | Medical Diagnostic Data Acquisition Interface |
Use Scenario: Expanding digital I/O channels on automated test equipment (ATE) mainframes to drive multiple DUT interface boards simultaneously. IC Role / Device Role / Timing Role: High-current 16-bit driver with precise propagation delay matching across all 4-bit sections for synchronized stimulus delivery. Use Value: Delivers deterministic timing (tsk(LH)/tsk(HL) ≤ 0.5 ns skew) essential for parallel pattern generation and high-fidelity digital stimulus. | Use Scenario: Buffering parallel ADC output streams from multi-channel patient monitoring front-ends to a 3.3-V FPGA processing unit. IC Role / Device Role / Timing Role: Low-noise, high-Z isolation buffer preventing signal degradation from ADC load capacitance and crosstalk. Use Value: Maintains signal fidelity with <0.55 V VOL at 64 mA drive, ensuring accurate 12-bit+ data capture without added gain stages or reconstruction filters. |
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 input tolerance | Suitable only for pure 3.3-V or lower-voltage systems; not interoperable with 5-V peripherals | Select when cost and power efficiency outweigh mixed-voltage interface needs |
| 74ALVCH16244DL | Higher speed (tPD ≈ 2.0 ns), same 3.3-V/5-V tolerance, but SSOP-48 only (no TSSOP option) | Requires PCB redesign if migrating from DGG footprint; better for ultra-low-skew timing-critical paths | Choose when minimizing propagation delay skew is prioritized over package flexibility |
Compared with SN74LVC16244ADGGR and 74ALVCH16244DL, the 74LVT16244BDGGRG4 uniquely balances 5-V tolerance, 64 mA drive, TSSOP-48 compactness, and industrial temperature range - making it the optimal choice for mixed-signal backplane interfaces requiring field-proven robustness.
Availability
74LVT16244BDGGRG4 is available at Aetrix Electronics and suitable for industrial backplane buffering, automotive body control module interfacing, and medical data acquisition systems requiring stable component supply and long-term lifecycle continuity.
Supply support for 74LVT16244BDGGRG4 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 expertise in high-reliability logic and interface solutions.
The LVT16244B product line was engineered specifically for industrial and automotive applications demanding robust mixed-voltage interfacing, hot-swap capability, and extended temperature operation - addressing signal integrity and system-level interoperability challenges in complex electronic subsystems.
FAQ
What is the maximum operating voltage for inputs on the 74LVT16244BDGGRG4?
The 74LVT16244BDGGRG4 supports an input voltage range of –0.5 V to 5.5 V, enabling safe connection to 5-V logic sources while powered from a 3.3-V supply. This eliminates the need for external level-shifting components and simplifies inter-system interfacing in mixed-voltage designs.
Does the 74LVT16244BDGGRG4 support hot insertion, and how is it implemented?
Yes, the 74LVT16244BDGGRG4 supports hot insertion through two integrated features: Ioff circuitry disables outputs when VCC = 0, preventing back-current flow, and power-up 3-state forces outputs into high-impedance during VCC ramp-up. Both mechanisms are intrinsic to the 74LVT16244BDGGRG4 silicon design and require no external components.
What is the pin-compatible replacement for the 74LVT16244BDGGRG4 in TSSOP-48?
No pin-compatible replacement exists for the 74LVT16244BDGGRG4 in TSSOP-48 with identical 5-V input tolerance and 64 mA drive. SN74LVC16244ADGGR shares the footprint but lacks 5-V tolerance; 74ALVCH16244DL offers similar performance but is only available in SSOP-48. Migration requires validation of voltage and drive requirements for the 74LVT16244BDGGRG4 use case.
How does the 74LVT16244BDGGRG4 handle power sequencing in multi-rail systems?
The 74LVT16244BDGGRG4 enters high-impedance automatically when VCC drops below 1.5 V, and remains in that state until VCC rises above this threshold. To guarantee high-Z above 1.5 V, OE pins must be pulled high via external resistors - a design requirement explicitly defined for the 74LVT16244BDGGRG4 to prevent bus contention during asymmetric power-up sequences.
What thermal performance can be expected from the 74LVT16244BDGGRG4 in continuous operation?
The 74LVT16244BDGGRG4 in TSSOP-48 (DGG) has a θJA of 70°C/W. Under worst-case conditions (VCC = 3.6 V, all 16 outputs sourcing/sinking 64 mA), total power dissipation reaches ~5 mA ICC + ~1.0 W I²R losses, resulting in ~75°C junction rise above ambient - well within its 85°C ambient rating when mounted on 2 oz copper with moderate airflow.
74LVT16244BDGGRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVT
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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-TSSOP
74LVT16244BDGGRG4 FAQ
1.How can I place an order for 74LVT16244BDGGRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVT16244BDGGRG4 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 74LVT16244BDGGRG4 reliable?
The price and inventory of 74LVT16244BDGGRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVT16244BDGGRG4 is usually 5 days.
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74LVT16244BDGGRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVT16244BDGGRG4 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 74LVT16244BDGGRG4?
For technical support, including 74LVT16244BDGGRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVT16244BDGGRG4 requirements.
6.How does Aetrix verify that 74LVT16244BDGGRG4 is sourced from the original manufacturer or authorized distributors?
All 74LVT16244BDGGRG4 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 74LVT16244BDGGRG4 meets industry standards.
7.What is the process for return or replacement of 74LVT16244BDGGRG4?
All 74LVT16244BDGGRG4 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVT16244BDGGRG4, 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 74LVT16244BDGGRG4 part is unused and in its original packaging.
Return procedure for 74LVT16244BDGGRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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