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Texas Instruments SN74AUC16244DGGR
- Part No.:
- SN74AUC16244DGGR
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
SN74AUC16244DGGR.pdf
- Description:
- IC BUF NON-INVERT 2.7V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,805
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Product details
Overview
SN74AUC16244DGGR from Texas Instruments is a 16-bit noninverting 3-state buffer/driver optimized for 1.8-V operation with 3.6-V I/O tolerance, 2 ns max propagation delay at 1.8 V, ±8-mA output drive, and Ioff support for partial-power-down mode. It serves as a high-density bus interface in low-voltage memory address, clock, and data bus systems.
For engineers reviewing the SN74AUC16244DGGR datasheet, SN74AUC16244DGGR pinout, SN74AUC16244DGGR application, or SN74AUC16244DGGR equivalent, key selection criteria include sub-2-V supply compatibility, 48-pin TSSOP (DGG) package footprint, 16-bit 3-state buffering architecture, and Ioff-enabled system-level power sequencing.
Technical Context
This device implements four independent 4-bit buffer sections, each with symmetrical active-low output-enable (OE) inputs and true (noninverting) outputs. Its logic diagram confirms direct A→Y signal path per channel without internal inversion or latching.
Designed for 0.8-V to 2.7-V VCC operation - specifically optimized for 1.65-V to 1.95-V range - it supports mixed-mode signaling via 3.6-V tolerant I/Os and prevents backflow current during partial power-down using integrated Ioff circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 0.8 V to 2.7 V - enables operation across ultra-low-voltage (0.8 V) to standard 1.8-V/2.5-V domains |
| Max tpd @ 1.8 V | 2 ns - ensures timing-critical bus driving in high-speed memory and clock distribution |
| Output Drive | ±8 mA @ 1.65 V - provides robust signal integrity on loaded PCB traces and stubbed buses |
| Ioff Support | Yes - disables outputs during power-down to prevent damaging backflow current in multi-rail systems |
| IOH/IOL | –8 mA / +8 mA @ 1.65 V - symmetric drive capability simplifies termination and signal integrity analysis |
| ICC Max | 20 µA - ultra-low static power ideal for battery-backed or always-on subsystems |
| ESD Rating | 2000-V HBM - meets industrial-grade robustness requirements without external protection |
Pinout & Package
SN74AUC16244DGGR uses a 48-pin TSSOP package (DGG), 6.1 mm × 12.5 mm body size, 0.5-mm lead pitch, and 1.2-mm maximum height per JEDEC MO-153.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-low output-enable control | Independent gating of four 4-bit buffer groups; tie to VCC via pullup for power-up high-Z safety |
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 | Input terminals | 16 total inputs grouped into four 4-bit channels; no internal cross-talk or shared logic |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 | True (noninverting) 3-state outputs | 16 buffered outputs with high-impedance state when corresponding OE is high |
| VCC (Pins 7, 20, 25, 38) | Power supply | Four dedicated VCC pins reduce IR drop and improve noise immunity across wide bus layout |
| GND (Pins 4, 10, 15, 27, 32, 40, 43, 46) | Ground reference | Eight GND pins provide low-inductance return paths for all 16 drivers and enable clean signal switching |
Key Features
| Feature | Design Value |
|---|---|
| 1.8-V optimized performance | 2 ns max tpd and ±8-mA drive at 1.65–1.95 V - delivers speed/power balance unmatched in 1.8-V logic families |
| 3.6-V I/O tolerance | Supports interfacing with 3.3-V or 2.5-V peripherals without level shifters - reduces BOM count and layout complexity |
| Ioff partial-power-down | Automatically disables outputs when VCC = 0 V - eliminates need for external isolation switches in hot-swap or multi-supply designs |
| Sub-1-V operability | Functional down to 0.8 V - enables use in emerging ultra-low-power microcontroller subsystems and energy-harvesting interfaces |
| Widebus™ architecture | High-density 16-bit bus driver with distributed VCC/GND pins - minimizes ground bounce and improves signal integrity on dense PCBs |
Applications
| Memory Address Buffering | Clock Distribution |
|---|---|
Use Scenario: Driving 16-bit address lines from an MCU to multiple SRAM or Flash devices on a shared bus. IC Role / Device Role / Timing Role: Noninverting 3-state buffer providing fanout, voltage translation, and bus contention control. Use Value: Enables simultaneous access to multiple memory devices while maintaining 2-ns timing margin and eliminating address skew. |
Use Scenario: Distributing a single system clock to multiple low-power peripherals with matched trace lengths. IC Role / Device Role / Timing Role: Low-skew, high-drive clock buffer with independent enable controls per quadrant. Use Value: Delivers <2 ns inter-output skew and ±8-mA drive to overcome capacitive loading of long clock nets. |
| Low-Voltage Data Bus Interface | Hot-Swappable Module Interface |
Use Scenario: Isolating a 1.8-V FPGA I/O bank from a 2.5-V peripheral bus using level-tolerant bidirectional control. IC Role / Device Role / Timing Role: Voltage-tolerant unidirectional buffer enabling safe 1.8-V-to-2.5-V signal translation without external components. Use Value: Eliminates discrete level shifters while preserving 2-ns timing and supporting 3.6-V input overvoltage protection. |
Use Scenario: Enabling hot insertion of a daughterboard into a powered-backplane system with mixed supply domains. IC Role / Device Role / Timing Role: Ioff-enabled 3-state buffer preventing backfeed current when module VCC is off but backplane signals remain active. Use Value: Guarantees safe insertion/removal without system reset or auxiliary power sequencing circuitry. |
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 |
|---|---|---|---|
| SN74LVC16244ADGGR | Higher VCC min (1.65 V), slower tpd (3.5 ns @ 1.8 V), lower drive (±24 mA @ 3.3 V only) | Requires 3.3-V domain; not sub-1-V operable; lacks Ioff | Choose for cost-sensitive 3.3-V systems where ultra-low voltage or Ioff is unnecessary |
| SN74AUP16244DGGR | Lower ICC (0.5 µA), slower tpd (6.4 ns @ 1.2 V), same Ioff and 3.6-V tolerance | Optimized for ultra-low static power over speed; targets battery-powered IoT endpoints | Choose when standby current <1 µA is critical and 6-ns delay is acceptable |
Compared with SN74LVC16244ADGGR, SN74AUC16244DGGR delivers 43% faster propagation and guaranteed sub-1-V operation; versus SN74AUP16244DGGR, it trades 3× higher ICC for 3× lower tpd - making it optimal for timing-critical, mixed-voltage embedded buses.
Availability
SN74AUC16244DGGR is available at Aetrix Electronics and suitable for memory address buffering, clock distribution, low-voltage data bus interfacing, and hot-swappable module interfaces requiring stable component supply and full lifecycle support.
Supply support for SN74AUC16244DGGR 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 broad industrial, automotive, and communications applications.
SN74AUC16244DGGR belongs to TI's Widebus™ family - engineered for high-density, low-voltage bus interface applications including memory addressing, clock fanout, and mixed-signal system interconnect.
FAQ
What is the minimum operating voltage for SN74AUC16244DGGR?
The SN74AUC16244DGGR operates down to 0.8 V, with recommended operation between 1.65 V and 1.95 V. At 0.8 V, it maintains functional logic behavior though with reduced speed and drive strength - verified per SCES399E absolute and recommended operating conditions tables.
Does SN74AUC16244DGGR support hot-plug or partial-power-down operation?
Yes, SN74AUC16244DGGR includes Ioff circuitry that automatically disables all outputs when VCC = 0 V, preventing damaging current backflow during hot insertion or multi-rail power sequencing - explicitly confirmed in the Features and Recommended Operating Conditions sections of the datasheet.
What package type and dimensions does SN74AUC16244DGGR use?
SN74AUC16244DGGR uses a 48-pin TSSOP package (DGG), measuring 6.1 mm × 12.5 mm with 0.5-mm lead pitch and 1.2-mm maximum height, compliant with JEDEC MO-153 - documented in the Package Outline and Mechanical Data sections of SCES399E.
Can SN74AUC16244DGGR interface directly with 3.3-V logic?
Yes, SN74AUC16244DGGR features 3.6-V I/O tolerance, allowing its inputs to safely accept 3.3-V signals while powered from 1.8 V - confirmed in the "Optimized for 1.8-V Operation and Is 3.6-V I/O Tolerant" feature and Absolute Maximum Ratings table.
How many independent 3-state control inputs does SN74AUC16244DGGR have?
SN74AUC16244DGGR has four independent active-low output-enable inputs (1OE, 2OE, 3OE, 4OE), each controlling a separate 4-bit buffer group - clearly shown in the logic diagram, pin diagram, and function table of the SCES399E datasheet.
SN74AUC16244DGGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AUC
- Package/Case:
- 48-TFSOP (0.240", 6.10mm 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:
- 9mA, 9mA
- Voltage - Supply:
- 0.8V ~ 2.7V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
SN74AUC16244DGGR FAQ
1.How can I place an order for SN74AUC16244DGGR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUC16244DGGR 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 SN74AUC16244DGGR reliable?
The price and inventory of SN74AUC16244DGGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUC16244DGGR is usually 5 days.
3.What payment methods are accepted for SN74AUC16244DGGR?
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4.How is shipping managed for SN74AUC16244DGGR?
SN74AUC16244DGGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AUC16244DGGR 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 SN74AUC16244DGGR?
For technical support, including SN74AUC16244DGGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUC16244DGGR requirements.
6.How does Aetrix verify that SN74AUC16244DGGR is sourced from the original manufacturer or authorized distributors?
All SN74AUC16244DGGR 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 SN74AUC16244DGGR meets industry standards.
7.What is the process for return or replacement of SN74AUC16244DGGR?
All SN74AUC16244DGGR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUC16244DGGR, 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 SN74AUC16244DGGR part is unused and in its original packaging.
Return procedure for SN74AUC16244DGGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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