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Texas Instruments SN74AVC16245DGGR
- Part No.:
- SN74AVC16245DGGR
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
SN74AVC16245DGGR.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,390
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Product details
Overview
SN74AVC16245DGGR from Texas Instruments is a 16-bit noninverting bus transceiver with 3-state outputs, designed for asynchronous bidirectional data transfer between mixed-voltage buses (1.2 V to 3.6 V). It features Dynamic Output Control (DOC™), Ioff partial-power-down support, and ±24 mA dynamic drive capability at 2.5 V - enabling noise-optimized signal integrity in high-speed memory and processor interconnects.
For engineers reviewing the SN74AVC16245DGGR datasheet, SN74AVC16245DGGR pinout, SN74AVC16245DGGR application, or SN74AVC16245DGGR equivalent, key selection criteria include its 48-pin TSSOP (DGG) package, dual-octant direction control (DIR/ OE), overvoltage-tolerant I/Os up to 4.6 V, and guaranteed operation from –40°C to 85°C across supply voltages.
Technical Context
The SN74AVC16245DGGR implements a dual 8-bit transceiver architecture with independent DIR and OE controls per octant, supporting A→B or B→A data flow under logic-level direction selection. Its DOC™ circuit dynamically modulates output impedance during transitions - lowering it initially for fast edge drive, then raising it to suppress switching noise without sacrificing speed.
It operates across 1.2 V–3.6 V VCC with rail-to-rail input tolerance (–0.5 V to VCC + 0.5 V), Ioff protection that disables outputs during power-down to prevent backflow current, and latch-up immunity exceeding 250 mA per JESD 78. Propagation delay is ≤2 ns at 2.5 V, with enable/disable times under 10 ns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.2 V to 3.6 V - supports mixed-voltage system interfacing (e.g., 1.8-V FPGA to 3.3-V peripheral) |
| Max Propagation Delay | ≤2 ns at 2.5 V - enables sub-500-MHz data rates in synchronous bus applications |
| Dynamic Drive Strength | ±24 mA at 2.5 V - matches standard-output logic while maintaining low-noise operation via DOC™ |
| Ioff Current | ±10 µA max at 3.6 V - ensures safe isolation during partial power-down in hot-swap systems |
| Input Voltage Range | –0.5 V to VCC + 0.5 V - allows overvoltage-tolerant I/O for level-shifting without external components |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded control and communications equipment |
| Package | TSSOP-48 (DGG) - 12.6 mm × 6.2 mm × 1.2 mm body, JEDEC MO-153 compliant, RoHS-compliant NIPDAU finish |
Pinout & Package
TSSOP-48 (DGG) package: 48-pin plastic thin shrink small-outline, 0.5-mm pitch, 12.6 mm × 6.2 mm footprint, 1.2 mm max height, moisture sensitivity level 1 (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control inputs (active-high) | Selects data flow direction per octant: DIR = L → B→A; DIR = H → A→B |
| 1OE, 2OE | Output-enable inputs (active-low) | Drives corresponding 8-bit port into high-impedance state when high; tie to VCC via pullup for power-up safety |
| 1A1–1A8, 2A1–2A8 | Port A inputs/outputs | First and second 8-bit data bus interface on A side; bidirectional with DIR/OE control |
| 1B1–1B8, 2B1–2B8 | Port B inputs/outputs | First and second 8-bit data bus interface on B side; bidirectional with DIR/OE control |
| VCC (pins 7, 18, 29, 40) | Power supply | Single 1.2–3.6 V supply for entire device; four dedicated pins reduce IR drop and improve noise margin |
| GND (pins 4, 10, 15, 21, 31, 34, 43, 47) | Ground reference | Eight ground connections distributed across package for low-inductance return paths and EMI suppression |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic Output Control (DOC™) | Dynamically lowers then raises output impedance during transitions - delivers 24-mA drive strength without overshoot/ringing |
| Ioff Partial-Power-Down Support | Disables outputs and limits leakage to ±10 µA when VCC = 0 - prevents backflow in powered-down subsystems |
| Mixed-Voltage Interface | Inputs/outputs tolerate –0.5 V to 4.6 V regardless of VCC - eliminates external level shifters between 1.2-V, 1.8-V, 2.5-V, and 3.3-V domains |
| EPIC™ Submicron CMOS Process | Enables <2 ns propagation delay and ultra-low ICC (40 µA max at 3.6 V) for high-speed, low-power bus buffering |
| ESD Robustness | 2000-V HBM / 200-V MM - exceeds JESD22-A114/A115, suitable for handling in automated assembly environments |
Applications
| Memory Interfacing | Processor Bus Expansion |
|---|---|
Use Scenario: Connecting DDR SDRAM or SRAM data buses to microcontroller or SoC memory controllers with mismatched voltage rails. IC Role / Device Role / Timing Role: Bidirectional level-shifting transceiver managing data flow between 1.8-V memory and 3.3-V controller. Use Value: Eliminates discrete level shifters; DOC™ reduces simultaneous switching noise during burst transfers. |
Use Scenario: Extending local parallel address/data buses in industrial PLCs or test equipment using legacy 8080/68000-style interfaces. IC Role / Device Role / Timing Role: Isolating and driving extended bus segments with controlled slew and low skew. Use Value: Guaranteed <2 ns tpd and 8-GND-pin layout minimize timing jitter and ground bounce in multi-drop configurations. |
| FPGA I/O Bridging | Hot-Swappable Module Interface |
Use Scenario: Interfacing FPGA I/O banks operating at 1.2 V or 1.5 V with external peripherals running at 2.5 V or 3.3 V. IC Role / Device Role / Timing Role: Voltage-agnostic bidirectional buffer enabling flexible I/O bank assignment and pin reuse. Use Value: Overvoltage-tolerant I/Os allow safe connection even during FPGA configuration before VCC stabilization. |
Use Scenario: Backplane communication between hot-pluggable modules and host controller in telecom line cards or modular instrumentation. IC Role / Device Role / Timing Role: Isolation gate with Ioff protection ensuring no current flows into unpowered modules during insertion/removal. Use Value: ±10 µA Ioff leakage prevents bus contention and protects powered modules from backfeed damage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16245ADGGR | Lower drive (±24 mA only at 3.3 V); no DOC™; VCC min = 1.65 V | Lacks dynamic noise control; unsuitable for 1.2–1.5 V systems or noise-sensitive high-speed buses | Choose for cost-sensitive 3.3-V-only designs where DOC™ is not required |
| SN74AVCH16245DGGR | Includes bus-hold circuitry; same DOC™ and voltage range; higher ICC (60 µA) | Eliminates external pullups on unused inputs but increases static power in floating-bus scenarios | Prefer when bus lines may float during initialization or debug; otherwise SN74AVC16245DGGR offers lower quiescent current |
Compared with SN74LVC16245ADGGR and SN74AVCH16245DGGR, the SN74AVC16245DGGR uniquely balances ultra-low-voltage operation (1.2 V), DOC™-enabled noise control, and minimal ICC - making it optimal for portable, mixed-rail, and EMI-constrained embedded systems.
Availability
SN74AVC16245DGGR is available at Aetrix Electronics and suitable for industrial automation, telecommunications infrastructure, and embedded computing applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for SN74AVC16245DGGR 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 innovation in high-speed interface ICs and process technologies like EPIC™.
The SN74AVC16245DGGR belongs to TI's AVC (Advanced Very-Low-Voltage CMOS) logic family - engineered specifically for robust, low-noise bidirectional data transfer in mixed-voltage digital systems from 1.2 V to 3.6 V.
FAQ
What voltage ranges does the SN74AVC16245DGGR support for VCC and I/O operation?
The SN74AVC16245DGGR supports VCC from 1.2 V to 3.6 V for full functionality, with data retention down to 1.2 V. Its inputs and outputs tolerate –0.5 V to 4.6 V regardless of VCC, enabling true mixed-voltage interfacing without external level shifters. This overvoltage tolerance applies to both active and 3-state conditions, as verified in the Absolute Maximum Ratings table.
How does the Dynamic Output Control (DOC™) circuit in the SN74AVC16245DGGR improve signal integrity?
The DOC™ circuit in the SN74AVC16245DGGR dynamically adjusts output impedance during signal transitions: it lowers impedance initially to deliver strong drive (equivalent to ±24 mA at 2.5 V), then raises it mid-transition to suppress ringing and crosstalk. This achieves fast edge rates without overshoot - a key advantage over fixed-drive transceivers in high-density PCB layouts with long traces or unterminated stubs.
Can the SN74AVC16245DGGR be used in partial-power-down systems, and how is Ioff implemented?
Yes - the SN74AVC16245DGGR fully supports partial-power-down via its Ioff circuitry. When VCC = 0 V, all I/Os enter a high-impedance state with leakage limited to ±10 µA maximum (per JESD 78), preventing damaging back-current flow between powered and unpowered sections. This is validated across the full temperature range and requires no external circuitry beyond proper OE pullup.
What is the pinout configuration of the SN74AVC16245DGGR, and how are direction and enable controls organized?
The SN74AVC16245DGGR uses a 48-pin TSSOP (DGG) package with two independent 8-bit transceiver sections. Each section has dedicated DIR (1DIR/2DIR) and OE (1OE/2OE) inputs, plus eight A-side (1A1–1A8, 2A1–2A8) and eight B-side (1B1–1B8, 2B1–2B8) bidirectional ports. Power and ground are distributed across four VCC and eight GND pins to minimize noise coupling and ensure stable operation.
Is the SN74AVC16245DGGR pin-compatible with other members of the AVC family, such as SN74AVCH16245DGGR?
Yes - the SN74AVC16245DGGR is pin-compatible with SN74AVCH16245DGGR and SN74LVC16245ADGGR in the same TSSOP-48 (DGG) package. However, functional differences exist: SN74AVCH16245DGGR adds bus-hold circuitry (increasing ICC), while SN74LVC16245ADGGR lacks DOC™ and operates only down to 1.65 V. Pin compatibility enables drop-in replacement only when those functional distinctions align with system requirements.
SN74AVC16245DGGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AVC
- 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:
- 12mA, 12mA
- Voltage - Supply:
- 1.4V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
SN74AVC16245DGGR FAQ
1.How can I place an order for SN74AVC16245DGGR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AVC16245DGGR 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 SN74AVC16245DGGR reliable?
The price and inventory of SN74AVC16245DGGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AVC16245DGGR is usually 5 days.
3.What payment methods are accepted for SN74AVC16245DGGR?
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4.How is shipping managed for SN74AVC16245DGGR?
SN74AVC16245DGGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AVC16245DGGR 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 SN74AVC16245DGGR?
For technical support, including SN74AVC16245DGGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AVC16245DGGR requirements.
6.How does Aetrix verify that SN74AVC16245DGGR is sourced from the original manufacturer or authorized distributors?
All SN74AVC16245DGGR 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 SN74AVC16245DGGR meets industry standards.
7.What is the process for return or replacement of SN74AVC16245DGGR?
All SN74AVC16245DGGR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AVC16245DGGR, 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 SN74AVC16245DGGR part is unused and in its original packaging.
Return procedure for SN74AVC16245DGGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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