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Texas Instruments SN74AUC16245DGGR
- Part No.:
- SN74AUC16245DGGR
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
SN74AUC16245DGGR.pdf
- Description:
- IC TXRX NON-INVERT 2.7V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,785
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Product details
Overview
SN74AUC16245DGGR from Texas Instruments is a 16-bit dual-octal noninverting bus transceiver 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 - used in voltage-translating bidirectional data buses between low-voltage logic domains in portable computing and high-speed interface subsystems.
For engineers reviewing the SN74AUC16245DGGR datasheet, SN74AUC16245DGGR pinout, SN74AUC16245DGGR application, or SN74AUC16245DGGR equivalent, key selection criteria include its 1.65–1.95-V nominal VCC range, sub-1-V operability, 20-µA max ICC, and TSSOP-48 package compatibility with mixed-mode signal routing in space-constrained PCB layouts.
Technical Context
The SN74AUC16245DGGR implements two independent 8-bit bidirectional data paths controlled by separate DIR and OE inputs per section, enabling asynchronous A↔B or B↔A data flow without external timing constraints. Its Ioff circuitry actively disables outputs during power-down to prevent backflow current, satisfying JESD 78 Class II latch-up requirements.
Each channel supports 0.8–2.7-V VCC operation with input thresholds scaled to VCC (VIH = 0.65×VCC, VIL = 0.35×VCC), and outputs tolerate up to 3.6-V signals regardless of VCC - critical for interfacing 1.8-V core logic with 3.3-V peripherals while maintaining signal integrity and ESD robustness (2000-V HBM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 0.8 V to 2.7 V - enables operation from sub-1-V standby to 2.7-V margin; nominal 1.65–1.95 V for optimal speed/power trade-off |
| Max tpd | 2 ns at 1.8 V - ensures <1.9 ns propagation delay for high-speed synchronous bus handshaking in DDR/PCIe auxiliary paths |
| I/O Tolerance | 3.6 V - allows safe connection to 3.3-V buses without level shifters when VCC = 1.8 V |
| Output Drive | ±8 mA at 1.8 V - sustains clean signal edges into 50-Ω transmission lines or fan-out-of-10 CMOS loads |
| ICC (max) | 20 µA - minimizes quiescent power in always-on system management controllers and battery-backed interfaces |
| Ioff Support | Enabled - prevents destructive current flow during hot-insertion or partial power-down of multi-rail systems |
| ESD Rating | 2000-V HBM - meets industrial-grade immunity for board-level handling and field-replaceable module integration |
Pinout & Package
TSSOP-48 (DGG) package: 12.6 mm × 6.2 mm × 1.2 mm body, 0.5-mm pitch, lead-free NIPDAU finish, MSL Level-1, RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input (per 8-bit section) | Determines data flow direction: DIR = L → B-to-A; DIR = H → A-to-B; enables independent bidirectional control of two 8-bit lanes |
| 1OE, 2OE | Output enable input (active-low, per section) | Drives outputs to high-impedance state when high; tie to VCC via pullup for power-up isolation |
| 1A1–1A8, 2A1–2A8 | Port A data terminals (input/output) | First and second 8-bit source/sink bus ports; electrically isolated from B ports when OE = H |
| 1B1–1B8, 2B1–2B8 | Port B data terminals (input/output) | First and second 8-bit destination/source bus ports; bidirectionally coupled to corresponding A ports under DIR/OE control |
| VCC (Pins 7, 18, 29, 40) | Supply voltage | Four dedicated VCC pins reduce IR drop and improve noise immunity across wide bus; decoupling required at each pair |
| GND (Pins 4, 11, 22, 33, 44) | Ground reference | Five GND pins provide low-inductance return paths for all 16 drivers, minimizing ground bounce in high-speed switching |
Key Features
| Feature | Design Value |
|---|---|
| 1.8-V optimized performance | 2 ns max tpd and ±8-mA drive at 1.8 V - delivers lowest latency and highest drive strength in 1.8-V domain among TI Widebus AUC family |
| 3.6-V I/O tolerance | Supports mixed-voltage interconnect without external translators - simplifies design of 1.8-V SoC-to-3.3-V peripheral bridges |
| Ioff partial-power-down | Blocks reverse current during VCC ramp-down - essential for hot-swap capable backplanes and modular compute blades |
| Sub-1-V operability | Functional down to 0.8 V - enables use in ultra-low-power retention modes and energy-harvesting subsystems |
| JESD 78 Class II latch-up immunity | Exceeds 100 mA - guarantees robustness against transient overvoltage events in industrial control I/O modules |
Applications
| Mobile Baseband Interface | Industrial PLC Backplane |
|---|---|
Use Scenario: Bidirectional data exchange between 1.8-V application processor and 3.3-V modem baseband IC in LTE/5G handset designs. IC Role / Device Role / Timing Role: Voltage-translating bus transceiver managing command/response traffic on shared parallel control bus. Use Value: Eliminates discrete level shifters while maintaining 2 ns timing margin for real-time AT command processing. | Use Scenario: Isolating CPU-side 1.8-V configuration registers from 24-V tolerant I/O expansion modules in programmable logic controllers. IC Role / Device Role / Timing Role: Direction-controlled data coupler enabling firmware updates and status polling across mixed-supply backplane segments. Use Value: Ioff protection prevents backfeed damage during module hot-swap; 3.6-V tolerance accommodates 3.3-V I/O rails with safety margin. |
| Automotive ADAS Sensor Hub | Test Equipment Digital Pattern Generator |
Use Scenario: Interfacing 1.8-V image signal processor with 3.3-V serializer IC in camera module ECU for rear-view and surround-view systems. IC Role / Device Role / Timing Role: Low-latency bidirectional transceiver synchronizing frame metadata and calibration data over parallel bus. Use Value: 2 ns tpd preserves setup/hold timing for pixel clock-aligned transfers; ESD rating meets ISO 10605 automotive requirements. | Use Scenario: Driving multiple 1.8-V DUT inputs from a 3.3-V pattern generator FPGA in automated test equipment. IC Role / Device Role / Timing Role: Output-enabled bus buffer translating stimulus vectors while isolating generator core from DUT load variations. Use Value: ±8-mA drive ensures fast edge rates into capacitive probe loads; 20-µA ICC reduces thermal drift in precision timing subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVC16245DGGR | Higher drive (±12 mA), wider VCC range (1.2–3.6 V), but 2.5 ns tpd at 1.8 V vs. 2 ns for SN74AUC16245DGGR | Better for driving heavier capacitive loads; less optimal where minimal propagation delay is critical | Choose SN74AVC16245DGGR if higher output current or broader supply flexibility outweighs 0.5 ns timing advantage |
| 74LVC16245APAG | 3.3-V optimized (1.65–3.6 V), 3.4 ns tpd at 3.3 V, no sub-1-V operation, lower ESD (1500-V HBM) | Suitable only for 3.3-V systems; lacks Ioff and 3.6-V tolerance at low VCC | Choose 74LVC16245APAG only in legacy 3.3-V-only designs where cost is prioritized over mixed-voltage capability |
Compared with SN74AVC16245DGGR and 74LVC16245APAG, the SN74AUC16245DGGR uniquely balances sub-2-ns latency, true 1.8-V optimization, and 3.6-V I/O tolerance - making it the preferred choice for next-generation portable and automotive interfaces requiring both speed and voltage-domain bridging.
Availability
SN74AUC16245DGGR is available at Aetrix Electronics and suitable for mobile baseband interfaces, industrial PLC backplanes, automotive ADAS sensor hubs, and test equipment digital pattern generators requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for SN74AUC16245DGGR 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 over 90 years of innovation in high-reliability electronic components.
The SN74AUC16245DGGR belongs to TI's Widebus™ AUC family - designed specifically for ultra-high-speed, low-voltage bidirectional bus interfacing in portable, automotive, and industrial systems demanding minimal propagation delay and robust mixed-signal operation.
FAQ
What is the minimum operating voltage for the SN74AUC16245DGGR?
The SN74AUC16245DGGR operates down to 0.8 V, supporting sub-1-V functionality for ultra-low-power retention modes and energy-efficient system states. This capability is verified across the full −40°C to 85°C temperature range and enables use in battery-critical applications such as wearable sensors and always-on IoT edge nodes where the SN74AUC16245DGGR maintains functional bus coupling even during deep sleep transitions.
Does the SN74AUC16245DGGR support hot-swap or partial-power-down operation?
Yes, the SN74AUC16245DGGR integrates Ioff circuitry that disables outputs during power-down, preventing damaging current backflow when VCC is unpowered while I/O pins remain active. This feature is fully characterized per JESD 78 Class II and enables safe hot-plug operation in modular systems - a key requirement confirmed in the SN74AUC16245DGGR datasheet for applications like field-replaceable compute blades and reconfigurable test instrumentation where the SN74AUC16245DGGR serves as a protected interface bridge.
Can the SN74AUC16245DGGR interface 1.8-V logic with 3.3-V peripherals?
Yes, the SN74AUC16245DGGR supports 3.6-V I/O tolerance regardless of VCC level, allowing direct connection of 1.8-V core logic to 3.3-V peripherals without external level shifters. This capability is explicitly specified in the absolute maximum ratings and recommended operating conditions tables of the SN74AUC16245DGGR datasheet, and is widely applied in mobile baseband designs where the SN74AUC16245DGGR bridges application processors and modem ICs across voltage domains.
What is the propagation delay of the SN74AUC16245DGGR at 1.8 V?
The SN74AUC16245DGGR has a maximum propagation delay (tpd) of 2 ns at 1.8 V, with typical values as low as 1.5 ns under standard load conditions (CL = 30 pF, RL = 1 kΩ). This performance is measured per JEDEC standards and validated across process corners, making the SN74AUC16245DGGR one of the fastest 16-bit transceivers in the 1.8-V class - critical for timing-critical applications such as high-speed memory-mapped I/O and real-time sensor fusion buses where the SN74AUC16245DGGR ensures deterministic data transfer.
Is the SN74AUC16245DGGR pin-compatible with other Widebus transceivers?
No, the SN74AUC16245DGGR is not pin-compatible with earlier Widebus families (e.g., ABT, LVT) due to distinct pin assignments, including four VCC and five GND pins distributed across the TSSOP-48 footprint. The SN74AUC16245DGGR pinout is unique to the AUC generation and requires dedicated PCB layout - confirmed by TI's mechanical drawings and terminal assignment tables in the SN74AUC16245DGGR datasheet, where pin functions such as 1DIR, 1OE, and dual VCC/GND placements differ from legacy variants.
SN74AUC16245DGGR 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:
- Transceiver, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 8
- 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
SN74AUC16245DGGR FAQ
1.How can I place an order for SN74AUC16245DGGR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AUC16245DGGR 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 SN74AUC16245DGGR reliable?
The price and inventory of SN74AUC16245DGGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AUC16245DGGR is usually 5 days.
3.What payment methods are accepted for SN74AUC16245DGGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AUC16245DGGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74AUC16245DGGR?
SN74AUC16245DGGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AUC16245DGGR 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 SN74AUC16245DGGR?
For technical support, including SN74AUC16245DGGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AUC16245DGGR requirements.
6.How does Aetrix verify that SN74AUC16245DGGR is sourced from the original manufacturer or authorized distributors?
All SN74AUC16245DGGR 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 SN74AUC16245DGGR meets industry standards.
7.What is the process for return or replacement of SN74AUC16245DGGR?
All SN74AUC16245DGGR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AUC16245DGGR, 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 SN74AUC16245DGGR part is unused and in its original packaging.
Return procedure for SN74AUC16245DGGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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