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Texas Instruments 74LVC16244ADGGRG4
- Part No.:
- 74LVC16244ADGGRG4
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74LVC16244ADGGRG4.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,747
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Product details
Overview
74LVC16244ADGGRG4 from Texas Instruments is a 16-bit noninverting 3-state buffer/driver with four independent active-low output-enable inputs, operating from 1.65 V to 3.6 V supply, supporting 5.5-V-tolerant inputs and delivering ≤4.1 ns propagation delay at 3.3 V - used for memory address buffering, bus isolation, and level translation in server backplanes and industrial control I/O modules.
For engineers reviewing the 74LVC16244ADGGRG4 datasheet, 74LVC16244ADGGRG4 pinout, 74LVC16244ADGGRG4 application, or 74LVC16244ADGGRG4 equivalent, key selection criteria include its 48-pin TSSOP package, Ioff partial-power-down support, ±24 mA drive strength per output at 3.0 V, 3.3-V/5-V mixed-signal interface capability, and –40°C to 125°C industrial temperature range.
Technical Context
This device implements four independent 4-bit noninverting buffers, each with dedicated active-low OE control (1OE–4OE), enabling selective 3-state output disabling without affecting other sections. All inputs tolerate up to 5.5 V regardless of VCC, allowing direct interfacing with 5-V logic while powered from 3.3 V or lower.
It features Ioff circuitry that disables current flow when VCC = 0 V, supporting live insertion and back-drive protection. Output ground bounce (VOLP) remains <0.8 V and VOH undershoot exceeds 2 V at VCC = 3.3 V, ensuring signal integrity in high-speed digital buses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 3.6 V - enables operation across low-voltage embedded systems and legacy 3.3-V infrastructure. |
| Input Voltage Tolerance | Up to 5.5 V - permits direct connection to 5-V microcontrollers or legacy peripherals without external level shifters. |
| tpd (Max) | 4.1 ns at VCC = 3.3 V - supports >100 MHz bus timing margins in memory and address driver applications. |
| IOL / IOH (Max) | ±24 mA at VCC = 3.0 V - drives standard TTL loads and multiple CMOS inputs with margin. |
| Operating Temperature | –40°C to +125°C - qualified for industrial and extended-temperature embedded control environments. |
| Ioff Support | Active at VCC = 0 V - prevents power rail contention during hot-swap or partial-power-down system states. |
| ESD Rating | 2000-V HBM, 1000-V CDM - meets JEDEC JESD22-A114 and JESD22-C101 for robust handling in manufacturing. |
Pinout & Package
TSSOP-48 (DGG) package, 12.50 mm × 6.10 mm body size, 0.5-mm pitch, lead-free (NiPdAu) finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE–4OE | Active-low output enable | Individually disables corresponding 4-bit buffer group; asserted low enables Y outputs, high places them in high-impedance state. |
| 1A1–4A4 | Buffer input | 16 total noninverting data inputs, grouped into four 4-bit channels (A1–A4 per section). |
| 1Y1–4Y4 | Buffer output | 16 true (noninverting) 3-state outputs, each driven by matching A input when OE is active. |
| VCC (Pins 7,18,31,42) | Supply voltage | Four distributed power pins reduce IR drop and improve noise immunity across wide bus layouts. |
| GND (Pins 4,10,15,21,28,34,39,45) | Ground reference | Eight ground pins provide low-inductance return paths and minimize ground bounce in high-speed switching. |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range | 1.65 V to 3.6 V operation supports migration from 2.5-V to 3.3-V systems without redesign. |
| 5.5-V tolerant inputs | Enables seamless integration into mixed-voltage systems (e.g., 5-V MCU controlling 3.3-V FPGA I/O). |
| Ioff partial-power-down | Prevents damaging current flow between powered and unpowered sections during board insertion or power sequencing. |
| Low ground bounce | VOLP < 0.8 V at VCC = 3.3 V ensures stable logic-low levels under fast switching transients. |
| Mixed-mode signal operation | Supports simultaneous 3.3-V VCC and 5-V input signals - critical for legacy interface bridging. |
Applications
| Memory Address Buffering | Industrial I/O Expansion |
|---|---|
Use Scenario: Driving address lines from a microcontroller to multiple SRAM or Flash devices on a shared bus. IC Role / Device Role / Timing Role: Noninverting 3-state buffer isolating CPU address bus from peripheral memory banks; OE pins enable bank-select timing control. Use Value: Prevents bus contention during memory access arbitration; 4.1 ns tpd ensures setup/hold compliance at 25-MHz bus clocks. |
Use Scenario: Interfacing PLC CPU with remote digital I/O modules over long traces with noise susceptibility. IC Role / Device Role / Timing Role: Signal conditioning and drive strengthening for 24-V industrial sensor/actuator control lines via optocoupler interfaces. Use Value: ±24 mA output drive sustains signal integrity over 10-cm PCB traces; Ioff protects during module hot-swap maintenance. |
| Server Backplane Isolation | Embedded Display Interface |
Use Scenario: Isolating PCIe or SATA control signals between motherboard and add-in card slots in rack-mounted servers. IC Role / Device Role / Timing Role: Bidirectional bus driver with per-lane OE control, decoupling hot-pluggable card logic from host controller timing domains. Use Value: 5.5-V input tolerance accommodates legacy BIOS signaling; 125°C rating supports operation near CPU VRMs. |
Use Scenario: Level-shifting parallel RGB data and control signals from an ARM SoC (3.3-V) to a TFT-LCD panel requiring 5-V logic levels. IC Role / Device Role / Timing Role: Unidirectional voltage translator driving panel data bus with precise timing alignment across 16-bit lanes. Use Value: Matched propagation delay (<0.5 ns skew between Y1–Y4) preserves pixel data eye diagram integrity at 33 MHz pixel clock. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buffer/driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16244ADGGR | Same silicon, identical electrical specs; differs only in RoHS marking (no "G4" suffix) and packaging (tube vs. tape-and-reel). | No functional difference; suitable for prototyping or low-volume builds where reel format is unnecessary. | Select SN74LVC16244ADGGR for manual assembly or evaluation; use 74LVC16244ADGGRG4 for automated SMT production. |
| SN74LVC16244ADGVRG4 | Identical functionality and specs, but in 48-pin TVSOP (DGV) package - 9.70 mm × 4.40 mm, 0.4-mm pitch, thinner profile. | Better suited for space-constrained designs; thermal resistance RθJA = 78.4°C/W vs. 64.3°C/W for DGG. | Choose SN74LVC16244ADGVRG4 when board area is limited; prefer 74LVC16244ADGGRG4 for higher thermal performance and mechanical robustness. |
Compared with SN74LVC16244ADGGR and SN74LVC16244ADGVRG4, the 74LVC16244ADGGRG4 offers optimal thermal dissipation in TSSOP-48 for high-density industrial PCBs, while maintaining full pin and functional compatibility - making it the preferred choice for volume production requiring reliability and manufacturability.
Availability
74LVC16244ADGGRG4 is available at Aetrix Electronics and suitable for industrial control systems, server backplanes, and embedded display interfaces requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 74LVC16244ADGGRG4 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 expertise in high-reliability interface ICs for industrial and computing markets.
The SN74LVC16244A product line was designed specifically to improve density and timing performance of 3-state memory address drivers, clock distribution networks, and bus-oriented receivers/transmitters in multi-voltage systems.
FAQ
What is the maximum output drive strength of the 74LVC16244ADGGRG4 at 3.3 V?
The 74LVC16244ADGGRG4 delivers ±24 mA output current per Y pin at VCC = 3.0 V, and ±12 mA at VCC = 2.7 V. At 3.3 V, typical IOL is 24 mA and IOH is –24 mA under specified test conditions, meeting standard LVTTL load requirements while maintaining VOL ≤ 0.55 V and VOH ≥ 2.2 V.
Does the 74LVC16244ADGGRG4 support hot-swap or live-insertion applications?
Yes, the 74LVC16244ADGGRG4 includes Ioff circuitry that disables input/output leakage paths when VCC = 0 V, preventing current backflow and enabling safe insertion into powered backplanes. This feature is explicitly characterized per JEDEC JESD78 and supports partial-power-down system architectures.
Can the 74LVC16244ADGGRG4 be used to translate 5-V signals to 3.3-V logic levels?
Yes - all inputs accept voltages up to 5.5 V regardless of VCC, allowing direct connection to 5-V sources while operating from 1.65–3.6 V. The outputs swing rail-to-rail within the VCC range, so 5-V inputs are safely translated to 3.3-V-compatible logic levels without external components.
What is the thermal performance of the 74LVC16244ADGGRG4 in its TSSOP-48 package?
In the TSSOP-48 (DGG) package, the 74LVC16244ADGGRG4 has a junction-to-ambient thermal resistance (RθJA) of 64.3°C/W. With four VCC and eight GND pins, it achieves lower thermal impedance than comparable TVSOP variants, supporting continuous operation at full drive strength up to +125°C ambient when properly heatsinked.
How does the 74LVC16244ADGGRG4 handle unused input pins?
All unused inputs on the 74LVC16244ADGGRG4 must be tied to either VCC or GND to prevent floating states that cause increased ICC, noise coupling, or undefined output behavior. TI recommends connecting unused A inputs to GND and unused OE inputs to VCC (to disable associated outputs) per SCBA004 application guidance.
74LVC16244ADGGRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- 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:
- 24mA, 24mA
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
74LVC16244ADGGRG4 FAQ
1.How can I place an order for 74LVC16244ADGGRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC16244ADGGRG4 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 74LVC16244ADGGRG4 reliable?
The price and inventory of 74LVC16244ADGGRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC16244ADGGRG4 is usually 5 days.
3.What payment methods are accepted for 74LVC16244ADGGRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC16244ADGGRG4 transactions.
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4.How is shipping managed for 74LVC16244ADGGRG4?
74LVC16244ADGGRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC16244ADGGRG4 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 74LVC16244ADGGRG4?
For technical support, including 74LVC16244ADGGRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC16244ADGGRG4 requirements.
6.How does Aetrix verify that 74LVC16244ADGGRG4 is sourced from the original manufacturer or authorized distributors?
All 74LVC16244ADGGRG4 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 74LVC16244ADGGRG4 meets industry standards.
7.What is the process for return or replacement of 74LVC16244ADGGRG4?
All 74LVC16244ADGGRG4 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC16244ADGGRG4, 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 74LVC16244ADGGRG4 part is unused and in its original packaging.
Return procedure for 74LVC16244ADGGRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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