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Texas Instruments 74AVC4T774RSVR-NT
- Part No.:
- 74AVC4T774RSVR-NT
- Manufacturer:
- Texas Instruments
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
74AVC4T774RSVR-NT.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 16UQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,917
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Product details
Overview
74AVC4T774RSVR-NT from Texas Instruments is a 4-bit dual-supply bus transceiver enabling bidirectional voltage-level translation between 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V domains with independent DIR control per channel, 4.6V I/O tolerance, and 380Mbps max data rate (1.8V→3.3V). It serves in MCU-to-peripheral interfaces requiring asynchronous, low-voltage signal bridging.
For engineers reviewing the 74AVC4T774RSVR-NT datasheet, 74AVC4T774RSVR-NT pinout, 74AVC4T774RSVR-NT application, or 74AVC4T774RSVR-NT equivalent, key selection criteria include per-channel direction control, VCCA/VCCB supply independence (1.1V–3.6V), Ioff partial-power-down support, 3-state output enable timing, and UQFN-16 (2.6mm × 1.8mm) footprint compatibility.
Technical Context
The device implements a fully configurable dual-rail architecture where A-port I/Os and all control inputs (DIR1–DIR4, OE) are referenced to VCCA, while B-port I/Os track VCCB-enabling simultaneous operation across mismatched voltage domains. Each channel's DIR input directly governs unidirectional data flow without shared logic.
Its Ioff circuitry disables outputs during partial power-down, preventing backflow current when either VCCA or VCCB is at GND; VCC isolation ensures both ports enter high-impedance state if either supply rail collapses. CMOS inputs require explicit biasing to avoid excessive ICCZ leakage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range (VCCA/VCCB) | 1.1V to 3.6V each - enables translation between any pair of 1.2V/1.5V/1.8V/2.5V/3.3V nodes |
| I/O Voltage Tolerance | 4.6V - allows safe interfacing with higher-voltage systems without external protection |
| Max Data Rate | 380Mbps (1.8V→3.3V) - supports high-speed SPI, parallel bus, and memory interface applications |
| Ioff Current | ±0.1µA (typ) - prevents damaging current backflow during partial power-down |
| Propagation Delay (tPLH/tPHL) | 0.1ns to 7.5ns - varies with VCCA/VCCB combination; sub-1ns typical at 3.3V→3.3V |
| ESD Protection | ±8000V HBM - meets industrial-grade robustness requirements for board-level handling |
| Operating Temperature | –40°C to +85°C - qualified for extended industrial environments |
Pinout & Package
74AVC4T774RSVR-NT uses a 16-pin UQFN package (RSV) measuring 2.6mm × 1.8mm with wettable flank terminals and an exposed thermal pad. Pin numbering follows TI standard top-view orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DIR1–DIR4 | Direction-control input (VCCA-referenced) | Each independently enables A→B (DIR=H) or B→A (DIR=L) data flow per channel |
| A1–A4 | A-port I/O (VCCA-referenced) | Bidirectional data path tied to VCCA supply; must be driven or terminated to prevent floating |
| B1–B4 | B-port I/O (VCCB-referenced) | Bidirectional data path tied to VCCB supply; tolerant up to 4.6V regardless of VCCB |
| OE | Output-enable input (VCCA-referenced) | Active-low: drives all A/B outputs to 3-state when high; requires pullup to VCCA for power-up safety |
| VCCA / VCCB | Power supply inputs | Independent rails-VCCA powers A-port and controls DIR/OE; VCCB powers B-port only |
| GND | Ground reference | Common return for both supplies; thermal pad must be soldered to PCB ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Per-channel DIR control | Enables mixed-direction data routing on same device (e.g., A1→B1 and B2→A2 simultaneously) |
| Independent VCCA/VCCB rails | Eliminates need for external level-shifting components in heterogeneous voltage systems |
| Ioff partial-power-down | Allows safe hot-plug or sleep-mode operation without disabling upstream/downstream logic |
| 4.6V I/O tolerance | Permits connection to legacy 3.3V or 5V peripherals without clamping diodes or resistors |
| VCC isolation | Guarantees high-Z state on both ports if either VCCA or VCCB drops to GND-prevents bus contention |
Applications
| MCU-to-SPI Peripheral Interface | Multi-Voltage Memory Subsystem |
|---|---|
Use Scenario: Interfacing a 1.8V ARM Cortex-M microcontroller with a 3.3V SPI flash memory or sensor. IC Role / Device Role / Timing Role: Bidirectional level translator for SCLK, MOSI, MISO, and CS signals with independent DIR per line. Use Value: Eliminates discrete resistor networks or dedicated level-shifters; supports full-duplex 380Mbps SPI transfers without timing skew. | Use Scenario: Connecting a 1.2V SoC memory controller to DDR3L (1.35V) or LPDDR4 (1.1V) modules in portable devices. IC Role / Device Role / Timing Role: Voltage-domain bridge for address/control/data buses with per-lane direction control and Ioff during memory self-refresh. Use Value: Maintains signal integrity across voltage transitions; enables dynamic voltage scaling without bus lockup. |
| Industrial PLC I/O Module | Automotive Infotainment Gateway |
Use Scenario: Isolating 2.5V FPGA configuration logic from 3.3V analog front-end ADCs/DACs in programmable logic controllers. IC Role / Device Role / Timing Role: Asynchronous bidirectional translator with VCC isolation ensuring fault containment during rail collapse. Use Value: Prevents cross-rail latch-up during brownout events; meets IEC 61000-4-2 ESD immunity requirements. | Use Scenario: Bridging 1.5V automotive microcontroller CAN/FlexRay peripherals with 3.3V display/video processing subsystems. IC Role / Device Role / Timing Role: Low-latency voltage translator supporting time-critical diagnostics and firmware updates over shared buses. Use Value: Delivers sub-1ns propagation delay consistency across temperature; qualified for AEC-Q100 Grade 2 (–40°C to +105°C) operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVCH4T774RSVR | Includes bus-hold circuitry on all I/Os; otherwise identical pinout, specs, and voltage range | Eliminates need for external pullups on unused lines in high-noise industrial environments | Select when floating-input immunity is critical and board space permits minor current increase |
| TXS4T774RTER | Auto-direction sensing (no DIR pins); lower drive strength (8mA vs 12mA); same UQFN-16 package | Simplifies routing in unidirectional or direction-stable links but lacks per-channel control flexibility | Select for cost-sensitive, fixed-direction applications where DIR pin count reduction outweighs configurability loss |
Compared with SN74AVCH4T774RSVR and TXS4T774RTER, the 74AVC4T774RSVR-NT provides deterministic per-channel direction control and maximum drive strength-making it optimal for mixed-direction, high-speed, and noise-sensitive designs where manual DIR management is acceptable.
Availability
74AVC4T774RSVR-NT is available at Aetrix Electronics and suitable for industrial automation, automotive infotainment, and portable consumer electronics requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for 74AVC4T774RSVR-NT 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and personal electronics markets.
The SN74AVC4T774 product line targets low-voltage, multi-rail system integration-designed specifically to simplify voltage domain bridging in space-constrained, high-density PCBs without sacrificing speed or reliability.
FAQ
What is the minimum operating voltage for 74AVC4T774RSVR-NT on VCCA and VCCB?
The 74AVC4T774RSVR-NT supports VCCA and VCCB down to 1.1V each, with guaranteed operation at 1.2V. At 1.2V, it delivers 150Mbps data rate and maintains full logic functionality including Ioff and 3-state control-enabling ultra-low-power IoT node designs.
Can 74AVC4T774RSVR-NT translate between 1.2V and 3.3V in both directions simultaneously?
Yes, the 74AVC4T774RSVR-NT supports bidirectional translation between 1.2V and 3.3V domains. With VCCA = 1.2V and VCCB = 3.3V, DIR = L enables B→A flow (3.3V→1.2V), while DIR = H enables A→B flow (1.2V→3.3V). Both modes operate at up to 150Mbps per channel.
Is a pullup resistor required on the OE pin of 74AVC4T774RSVR-NT?
Yes-a pullup resistor to VCCA is required on OE to ensure high-impedance state during power-up/power-down. The minimum value depends on the driver's sink capability; TI recommends ≥10kΩ for most applications. Leaving OE floating risks undefined output states and excessive ICCZ current.
Does 74AVC4T774RSVR-NT support hot-swap or partial-power-down operation?
Yes, the 74AVC4T774RSVR-NT includes Ioff circuitry that disables outputs when either VCCA or VCCB is at GND, preventing backflow current. This enables safe hot-swap insertion and partial-power-down modes in modular systems without disrupting adjacent logic.
What is the thermal pad requirement for the RSV package of 74AVC4T774RSVR-NT?
The RSV (UQFN-16) package of 74AVC4T774RSVR-NT includes an exposed thermal pad that must be soldered to a PCB copper pour connected to GND. TI specifies minimum pad size matching the die attach area (≈1.2mm × 1.2mm) and recommends ≥4 thermal vias to inner ground planes for reliable thermal dissipation under continuous 12mA load.
74AVC4T774RSVR-NT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AVC
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Translator Type:
- Voltage Level
- Channel Type:
- Bidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 4
- Voltage - VCCA:
- 1.1 V ~ 3.6 V
- Voltage - VCCB:
- 1.1 V ~ 3.6 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Tri-State
- Data Rate:
- 380Mbps
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-UFQFN
74AVC4T774RSVR-NT FAQ
1.How can I place an order for 74AVC4T774RSVR-NT through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AVC4T774RSVR-NT 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 74AVC4T774RSVR-NT reliable?
The price and inventory of 74AVC4T774RSVR-NT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AVC4T774RSVR-NT is usually 5 days.
3.What payment methods are accepted for 74AVC4T774RSVR-NT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AVC4T774RSVR-NT transactions.
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4.How is shipping managed for 74AVC4T774RSVR-NT?
74AVC4T774RSVR-NT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AVC4T774RSVR-NT 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 74AVC4T774RSVR-NT?
For technical support, including 74AVC4T774RSVR-NT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AVC4T774RSVR-NT requirements.
6.How does Aetrix verify that 74AVC4T774RSVR-NT is sourced from the original manufacturer or authorized distributors?
All 74AVC4T774RSVR-NT 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 74AVC4T774RSVR-NT meets industry standards.
7.What is the process for return or replacement of 74AVC4T774RSVR-NT?
All 74AVC4T774RSVR-NT units undergo pre-shipment inspection (PSI). If there is an issue with 74AVC4T774RSVR-NT, 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 74AVC4T774RSVR-NT part is unused and in its original packaging.
Return procedure for 74AVC4T774RSVR-NT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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