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Texas Instruments SN74LVC16244ADGG
- Part No.:
- SN74LVC16244ADGG
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
SN74LVC16244ADGG.pdf
- Description:
- IC BUF NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,172
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Product details
Overview
SN74LVC16244ADGG from Texas Instruments is a 16-bit noninverting 3-state buffer/driver designed for 1.65-V to 3.6-V VCC operation, supporting true output logic and four independent active-low output-enable (OE) controls. It delivers 4.1 ns max propagation delay at 3.3 V, 5.5-V-tolerant inputs, and Ioff support for live insertion in server memory address bus isolation.
For engineers reviewing the SN74LVC16244ADGG datasheet, SN74LVC16244ADGG pinout, SN74LVC16244ADGG application, or SN74LVC16244ADGG equivalent, key selection criteria include 3-state bus driving capability, mixed-voltage translation (5-V input / 3.3-V VCC), thermal performance in TSSOP-48, and compatibility with high-density PCB layouts requiring low ground bounce (<0.8 V).
Technical Context
This device implements four independent 4-bit buffer sections, each with dedicated OE control (1OE–4OE), enabling selective bus segment isolation without affecting other channels. Its CMOS design ensures symmetrical drive strength (±24 mA at 3.0 V) and supports down-translation from 5-V logic to 3.3-V systems via overvoltage-tolerant inputs.
The architecture includes Ioff circuitry that disables current flow when VCC = 0 V, preventing back-drive damage during hot-swap or partial-power-down. All 16 outputs are 3-state capable, with guaranteed high-impedance behavior verified across –40°C to 125°C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 3.6 V - Enables direct integration into modern low-voltage digital systems including DDR memory interfaces and portable embedded controllers. |
| Input Voltage Tolerance | Up to 5.5 V - Allows safe interfacing with legacy 5-V logic families without level-shifting components. |
| tpd Max | 4.1 ns at 3.3 V - Supports high-speed data routing in PC motherboard address buffers and network switch control planes. |
| Ioff | ±10 μA at VCC = 0 V - Ensures safe live insertion and prevents power rail contention during system reconfiguration. |
| Output Drive | ±24 mA at VCC = 3.0 V - Sufficient to drive 50-pF loads with fast edge rates while maintaining signal integrity on compact PCB traces. |
| Operating Temperature | –40°C to 125°C - Qualified for industrial and telecom infrastructure applications where ambient thermal stress exceeds consumer-grade limits. |
| VOLP/VOHV | <0.8 V / >2 V at 3.3 V - Minimizes ground bounce and output undershoot, critical for noise-sensitive clock distribution and high-reliability bus systems. |
Pinout & Package
TSSOP-48 package (DGG), body size 12.50 mm × 6.10 mm, 0.5-mm pitch, lead-free (NiPdAu), MSL Level-1, RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE–4OE | Active-low output enable | Individually disables corresponding 4-bit buffer group (e.g., 1OE controls 1Y1–1Y4), enabling granular bus segmentation. |
| 1A1–4A4 | Input | 16 total inputs grouped as four 4-bit lanes; accept 0–5.5 V regardless of VCC, enabling mixed-voltage domain bridging. |
| 1Y1–4Y4 | 3-state noninverting output | True-level outputs with high-impedance state when OE asserted; each rated for ±24 mA sink/source at 3.0 V. |
| VCC (Pins 7, 18, 31, 42) | Power supply | Four distributed VCC pins reduce IR drop and improve decoupling effectiveness; requires local 0.01–0.1 μF bypass per pin. |
| GND (Pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground reference | Eight GND pins minimize ground impedance and suppress simultaneous switching noise across all 16 drivers. |
Key Features
| Feature | Design Value |
|---|---|
| Widebus™ architecture | Optimized for high-density memory address and clock distribution with minimal board area per bit. |
| Mixed-mode signal operation | 5-V input tolerance with 3.3-V VCC enables seamless interface between legacy peripherals and modern low-voltage SoCs. |
| Ioff protection | Prevents current backflow during power sequencing or hot-plug events, eliminating need for external isolation diodes. |
| Low ground bounce | VOLP < 0.8 V at 3.3 V ensures stable logic thresholds under heavy capacitive loading, reducing timing margin erosion. |
| Latch-up immunity | Exceeds 250 mA per JESD17 - eliminates risk of destructive latch-up in noisy industrial environments with ESD transients. |
Applications
| Server Memory Address Buffering | PC Motherboard I/O Expansion |
|---|---|
|
Use Scenario: Isolating CPU address lines from multiple DIMM slots in dual-socket server platforms. IC Role / Device Role / Timing Role: 16-bit noninverting buffer with per-lane OE control routes address signals while preventing bus contention during memory training sequences. Use Value: Enables dynamic slot disable without redesigning trace routing; 4.1 ns tpd maintains timing closure at DDR4/DDR5 speeds. |
Use Scenario: Driving PCIe configuration registers and SMBus peripherals from a low-power microcontroller on compact laptop mainboards. IC Role / Device Role / Timing Role: Level-translating buffer converts 5-V legacy peripheral signals to 3.3-V host controller logic while providing 3-state isolation during sleep states. Use Value: Eliminates discrete level shifters; Ioff allows safe hot-plug of expansion cards without powering down the entire platform. |
| Network Switch Control Plane | Industrial PLC Backplane Interface |
|
Use Scenario: Interfacing FPGA-based packet classification engines with multi-gigabit PHY management buses in enterprise switches. IC Role / Device Role / Timing Role: 16-bit 3-state driver isolates FPGA I/O banks from shared MDIO/MII control lines during firmware updates. Use Value: Prevents bus lockup during concurrent configuration; 125°C rating supports fanless chassis designs with elevated ambient temperatures. |
Use Scenario: Buffering fieldbus address/data lines between programmable logic controller CPU and modular I/O racks in factory automation systems. IC Role / Device Role / Timing Role: Robust 3-state buffer withstands industrial ESD events (2000-V HBM) while translating between 5-V sensor inputs and 3.3-V controller logic. Use Value: Reduces component count vs. discrete solutions; eight GND pins suppress noise in electrically noisy plant-floor environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16244ADGVR | Identical electrical specs; TVSOP-48 package (9.70 mm × 4.40 mm) - 2.8 mm narrower than DGG, higher thermal resistance (RθJA = 78.4°C/W vs. 64.3°C/W). | Better suited for space-constrained layouts where footprint reduction outweighs thermal performance trade-off. | Select DGVR only if board real estate is critical and ambient temperature remains ≤85°C. |
| SN74LVC16244ADL | SSOP-48 package (15.88 mm × 7.49 mm); identical functionality but larger footprint and higher RθJA (68.4°C/W); same pinout. | Preferred for through-hole prototyping or legacy assembly lines requiring SSOP-compatible tooling. | Choose DL for manual soldering or when existing SSOP footprints must be reused without layout revision. |
Compared with SN74LVC16244ADGVR and SN74LVC16244ADL, the SN74LVC16244ADGG offers optimal thermal performance (lowest RθJA) and industry-standard TSSOP-48 compatibility, making it the default choice for production-grade high-density digital systems requiring reliable 125°C operation.
Availability
SN74LVC16244ADGG is available at Aetrix Electronics and suitable for server memory buffering, PC motherboard I/O expansion, and industrial PLC backplane interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74LVC16244ADGG 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 and embedded processing technologies, with decades of expertise in logic IC design and high-volume manufacturing reliability.
The SN74LVC16244ADGG belongs to TI's Widebus™ family-engineered specifically to enhance density and speed in memory address drivers, clock distribution networks, and bus-oriented receivers/transmitters for computing and communications infrastructure.
FAQ
What is the maximum operating temperature for SN74LVC16244ADGG?
The SN74LVC16244ADGG is rated for continuous operation from –40°C to 125°C, validated per JEDEC JESD22-A108. This extended range supports deployment in fanless telecom equipment, industrial control cabinets, and automotive under-hood modules where ambient temperatures exceed standard commercial limits. The SN74LVC16244ADGG maintains full DC and AC specifications across this full range.
Does SN74LVC16244ADGG support 5-V input signals while powered at 3.3 V?
Yes, the SN74LVC16244ADGG accepts input voltages up to 5.5 V regardless of VCC level (1.65–3.6 V), enabling direct interfacing with 5-V logic families without external level shifters. This mixed-mode capability is explicitly confirmed in the "Features" and "Recommended Operating Conditions" sections of the official TI datasheet SCAS699C, and applies directly to the SN74LVC16244ADGG variant.
How many output-enable (OE) pins does SN74LVC16244ADGG have, and what do they control?
The SN74LVC16244ADGG has four active-low output-enable pins: 1OE, 2OE, 3OE, and 4OE. Each controls one 4-bit buffer section (e.g., 1OE enables/disables outputs 1Y1–1Y4). This architecture allows independent isolation of bus segments - critical for memory interleaving, hot-swap redundancy, and selective peripheral activation in complex digital systems using the SN74LVC16244ADGG.
What is the purpose of the Ioff feature in SN74LVC16244ADGG?
The Ioff feature in SN74LVC16244ADGG disables current flow through inputs and outputs when VCC = 0 V, preventing back-drive damage during live insertion, partial power-down, or system reset sequences. Measured at ±10 μA maximum, this function eliminates the need for external blocking diodes and is essential for hot-pluggable modules and redundant power architectures relying on the SN74LVC16244ADGG.
Can SN74LVC16244ADGG be used as a single 16-bit buffer, or only as four 4-bit units?
The SN74LVC16244ADGG can be configured flexibly: as four independent 4-bit buffers (using separate OE pins), two 8-bit buffers (by tying adjacent OE pairs), or one unified 16-bit buffer (by connecting all OE pins together). This configurability is documented in the "Description" and "Device Functional Modes" sections of the TI datasheet and applies identically to the SN74LVC16244ADGG package variant.
SN74LVC16244ADGG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tube
- 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:
- 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
SN74LVC16244ADGG FAQ
1.How can I place an order for SN74LVC16244ADGG through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC16244ADGG 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 SN74LVC16244ADGG reliable?
The price and inventory of SN74LVC16244ADGG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC16244ADGG is usually 5 days.
3.What payment methods are accepted for SN74LVC16244ADGG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC16244ADGG transactions.
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4.How is shipping managed for SN74LVC16244ADGG?
SN74LVC16244ADGG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC16244ADGG 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 SN74LVC16244ADGG?
For technical support, including SN74LVC16244ADGG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC16244ADGG requirements.
6.How does Aetrix verify that SN74LVC16244ADGG is sourced from the original manufacturer or authorized distributors?
All SN74LVC16244ADGG 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 SN74LVC16244ADGG meets industry standards.
7.What is the process for return or replacement of SN74LVC16244ADGG?
All SN74LVC16244ADGG units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC16244ADGG, 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 SN74LVC16244ADGG part is unused and in its original packaging.
Return procedure for SN74LVC16244ADGG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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