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Texas Instruments SN74AVC16245DGVR
- Part No.:
- SN74AVC16245DGVR
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74AVC16245DGVR.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48TVSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,625
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Product details
Overview
SN74AVC16245DGVR from Texas Instruments is a 16-bit dual-octal noninverting bus transceiver with 3-state outputs, designed for asynchronous bidirectional data communication between mixed-voltage buses (1.2 V to 3.6 V). It features Dynamic Output Control (DOC™), Ioff partial-power-down support, ±24 mA dynamic drive at 2.5 V, and operates from –40°C to 85°C in a 48-pin TVSOP package.
For engineers reviewing the SN74AVC16245DGVR datasheet, SN74AVC16245DGVR pinout, SN74AVC16245DGVR application, or SN74AVC16245DGVR equivalent, key selection considerations include its overvoltage-tolerant I/Os, sub-2-ns propagation delay, 3.3/2.5/1.8-V compatibility, and use in high-density memory/data bus isolation where low noise and power sequencing robustness are required.
Technical Context
The SN74AVC16245DGVR implements a DOC™ circuit that dynamically modulates output impedance during signal transitions-initially lowering it for fast edge drive, then raising it to suppress switching noise. Its dual 8-bit architecture supports independent direction control (DIR) and output-enable (OE) per side, enabling flexible A↔B or B↔A data flow without external timing logic.
It is fully characterized for partial-power-down operation via Ioff, which disables outputs and blocks current backflow when VCC = 0 V. Input thresholds scale with VCC (VIH = 0.65×VCC, VIL = 0.35×VCC), ensuring reliable interfacing across 1.4–3.6 V supply domains while maintaining JESD 22 ESD robustness (>2000-V HBM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.2 V to 3.6 V - supports legacy 1.2-V logic up to modern 3.3-V systems; 1.65–3.6 V is recommended operating range. |
| Propagation Delay (tpd) | 1.7 ns (max at 3.3 V) - enables high-speed bus bridging in DDR, FPGA, and microcontroller interconnects. |
| Dynamic Drive Strength | ±24 mA at 2.5 V - matches standard-output drive capability without speed penalty, verified by Figure 1 VOH/VOL curves. |
| Ioff Current | ±10 µA max at 3.6 V - ensures safe isolation during hot-insertion or power sequencing in multi-rail systems. |
| Input Thresholds | VIH = 0.65×VCC, VIL = 0.35×VCC - provides rail-proportional logic recognition for stable operation across voltage domains. |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded and communications equipment environments. |
| ESD Rating | 2000-V HBM, 200-V MM - exceeds JEDEC JESD22-A114/A115, reducing need for external protection in board-level designs. |
Pinout & Package
SN74AVC16245DGVR uses a 48-pin Thin Very Small Outline Package (TVSOP, DGV), 7.1 mm × 10.2 mm × 1.2 mm body, JEDEC MO-153 compliant, with 0.4-mm lead pitch and Q1 pin-1 quadrant orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control inputs | Active-HIGH logic selects data flow: DIR = L → B→A; DIR = H → A→B; enables independent 8-bit channel control. |
| 1OE, 2OE | Output-enable inputs | Active-LOW enables 3-state outputs; tie to VCC via pullup for power-up high-Z safety per datasheet recommendation. |
| 1A1–1A8, 2A1–2A8 | Port A inputs/outputs | First and second octal data ports; bidirectional under DIR/OE control; overvoltage tolerant to 4.6 V. |
| 1B1–1B8, 2B1–2B8 | Port B inputs/outputs | Complementary octal ports; electrically identical to A-side; supports mixed-voltage domain translation. |
| VCC, GND | Power and ground terminals | Single-supply operation; 16 VCC/GND pairs distributed across package for low-noise decoupling and thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic Output Control (DOC™) | Reduces simultaneous switching noise by modulating output impedance mid-transition-no external termination or speed trade-off required. |
| Overvoltage-Tolerant I/Os | Withstands up to 4.6 V on any input/output regardless of VCC, enabling safe interfacing between 1.8-V, 2.5-V, and 3.3-V subsystems. |
| Ioff Partial-Power-Down | Prevents damaging back-current when VCC = 0 V, critical for hot-swap, battery-backed, or multi-rail power-gated systems. |
| EPIC™ Submicron CMOS Process | Delivers <2 ns propagation delay and low ICC (40 µA at 3.6 V) while maintaining robust latch-up immunity (>250 mA per JESD 78). |
| Widebus™ Family Compatibility | Pin- and function-compatible with other TI Widebus transceivers (e.g., SN74AVC16244), simplifying design reuse and BOM consolidation. |
Applications
| Memory Interface Bridging | FPGA-to-Microcontroller Bus Isolation |
|---|---|
Use Scenario: Interfacing a 3.3-V FPGA I/O bank with a 1.8-V DDR2 memory controller requiring level-shifted, bidirectional data transfer. IC Role / Device Role / Timing Role: Bidirectional voltage-translating bus transceiver with DIR-controlled direction and OE-gated isolation; handles address/data strobe timing without external clocks. Use Value: Eliminates discrete level shifters and reduces PCB layer count; DOC™ cuts crosstalk-induced timing jitter below 100 ps in 100-MHz burst transfers. | Use Scenario: Isolating a 2.5-V ARM Cortex-M7 MCU data bus from a 3.3-V peripheral cluster (ADC, DAC, Ethernet PHY) during firmware updates. IC Role / Device Role / Timing Role: Asynchronous 3-state bus buffer with Ioff-enabled safe power-down of MCU side while peripherals remain active. Use Value: Prevents backfeed current into unpowered MCU pins; enables zero-impact peripheral reconfiguration without system reset. |
| Industrial PLC Backplane Expansion | Automotive Infotainment Data Multiplexing |
Use Scenario: Extending a 16-bit parallel control bus across modular PLC I/O racks operating at different supply voltages (1.2 V sensor interface, 3.3 V comms module). IC Role / Device Role / Timing Role: Dual-octal transceiver providing two independent 8-bit channels, each with dedicated DIR/OE for rack-specific enable sequencing. Use Value: Supports hot-plug rack insertion via Ioff; overvoltage tolerance avoids damage from transient rail mismatches during insertion. | Use Scenario: Sharing a single high-speed MIPI DSI or LVDS video data path between multiple display modules (instrument cluster, center console, HUD) in a 12-V automotive platform. IC Role / Device Role / Timing Role: High-speed bidirectional bus repeater with sub-2-ns tpd, enabling pixel-clock-aligned data routing without skew accumulation. Use Value: DOC™ minimizes EMI emissions in EMC-sensitive cabin environments; –40°C to +85°C rating meets AEC-Q100 Grade 3 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVC16245DGGR | TSSOP-48 (DGG) package; 1.2-mm height vs. DGV's 1.0-mm height; same electrical specs and pinout. | Suitable for legacy PCB footprints with larger pad pitch; less space-constrained than TVSOP. | Select DGGR if board layout uses TSSOP land pattern or requires higher mechanical robustness; not drop-in for DGV footprint. |
| SN74LVC16245ADGVR | LVC family: lower drive (±24 mA only at 3.3 V), no DOC™, VIH/VIL fixed (not VCC-scaled), 1.65–3.6 V only. | Acceptable for cost-sensitive 3.3-V-only systems where noise reduction and ultra-low-voltage operation are not required. | Choose LVC variant only if DOC™, 1.2-V support, or mixed-voltage tolerance are unnecessary; not functionally identical. |
Compared with SN74AVC16245DGGR and SN74LVC16245ADGVR, the SN74AVC16245DGVR delivers superior noise control via DOC™, broader voltage range (1.2–3.6 V), and tighter height profile-making it optimal for space-constrained, multi-rail, and EMI-sensitive designs where signal integrity is prioritized over lowest unit cost.
Availability
SN74AVC16245DGVR is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive infotainment multiplexing, and FPGA-memory interface bridging requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for SN74AVC16245DGVR 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 industrial-grade reliability.
The SN74AVC16245DGVR belongs to TI's Widebus™ AVC logic family, engineered specifically for low-voltage, high-speed, mixed-domain bus interfacing in space-constrained and noise-sensitive embedded systems.
FAQ
What is the maximum operating voltage for SN74AVC16245DGVR?
The SN74AVC16245DGVR has an absolute maximum supply voltage (VCC) of 4.6 V, but its recommended operating range is 1.2 V to 3.6 V. Operation at 1.4–3.6 V ensures full specification compliance-including VIH/VIL thresholds, drive strength, and timing-while 1.2 V supports data retention only. Exceeding 3.6 V risks parametric degradation or reliability impact.
Does SN74AVC16245DGVR support true bidirectional data flow on the same pins?
Yes, the SN74AVC16245DGVR supports true bidirectional data flow per port pair (e.g., 1A ↔ 1B) using the DIR input to select direction and OE to enable/disable. Each of the two 8-bit sections operates independently: DIR = LOW routes B→A; DIR = HIGH routes A→B. No external logic or bus arbitration is needed for direction control.
How does the Dynamic Output Control (DOC™) circuit in SN74AVC16245DGVR reduce noise?
The DOC™ circuit in SN74AVC16245DGVR dynamically lowers output impedance at signal transition onset for strong edge drive, then raises it mid-transition to limit di/dt and suppress simultaneous switching noise. This occurs without sacrificing propagation delay-verified by Figure 1's VOH/VOL vs. IOH/IOL curves-and eliminates need for external series resistors or slew-rate limiting.
Can SN74AVC16245DGVR be used in partial-power-down systems?
Yes, SN74AVC16245DGVR includes Ioff circuitry that disables all outputs and limits leakage to ±10 µA when VCC = 0 V, preventing damaging back-current from live buses into unpowered logic. This makes it suitable for hot-swap, battery-backed, or multi-rail power-gated systems-fully specified per JESD 78 latch-up and JESD 22 ESD standards.
What is the pin-compatible alternative to SN74AVC16245DGVR in TSSOP package?
The SN74AVC16245DGGR is the pin-compatible TSSOP-48 (DGG) variant of SN74AVC16245DGVR, sharing identical logic, timing, and electrical specifications. It differs only in package dimensions: DGG is 1.2 mm tall vs. DGV's 1.0 mm, with slightly larger body (8.6 mm × 13.0 mm vs. 7.1 mm × 10.2 mm) and 0.5-mm lead pitch. Footprint and solder mask must be updated for DGG.
SN74AVC16245DGVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AVC
- Package/Case:
- 48-TFSOP (0.173", 4.40mm 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-TVSOP
SN74AVC16245DGVR FAQ
1.How can I place an order for SN74AVC16245DGVR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AVC16245DGVR 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 SN74AVC16245DGVR reliable?
The price and inventory of SN74AVC16245DGVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AVC16245DGVR is usually 5 days.
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SN74AVC16245DGVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AVC16245DGVR 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 SN74AVC16245DGVR?
For technical support, including SN74AVC16245DGVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AVC16245DGVR requirements.
6.How does Aetrix verify that SN74AVC16245DGVR is sourced from the original manufacturer or authorized distributors?
All SN74AVC16245DGVR 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 SN74AVC16245DGVR meets industry standards.
7.What is the process for return or replacement of SN74AVC16245DGVR?
All SN74AVC16245DGVR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AVC16245DGVR, 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 SN74AVC16245DGVR part is unused and in its original packaging.
Return procedure for SN74AVC16245DGVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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