My Inquiry
My Account
Texas Instruments 74AVC4T245RSVRG4
- Part No.:
- 74AVC4T245RSVRG4
- Manufacturer:
- Texas Instruments
- Package:
- 16-UFQFN
- Datasheet:
-
74AVC4T245RSVRG4.pdf
- Description:
- IC TRANSLATION TXRX 3.6V 16UQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,074
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74AVC4T245RSVRG4 from Texas Instruments is a 4-bit dual-supply noninverting bus transceiver enabling bidirectional voltage translation between 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V logic domains. It features independent VCCA (1.2–3.6V) and VCCB (1.2–3.6V) rails, 4.6V I/O tolerance, Ioff partial-power-down support, and up to 380Mbps data rate (1.8V→3.3V). It serves in low-voltage interconnects between SoCs and peripherals in portable electronics.
For engineers reviewing the 74AVC4T245RSVRG4 datasheet, 74AVC4T245RSVRG4 pinout, 74AVC4T245RSVRG4 application, or 74AVC4T245RSVRG4 equivalent, key selection criteria include dual-rail configurability, 16-pin UQFN (RSV) package dimensions (2.6mm × 1.8mm), direction-control logic referenced to VCCA, and guaranteed 3-state isolation during power sequencing.
Technical Context
The 74AVC4T245RSVRG4 implements two independent 2-bit bidirectional channels, each with dedicated DIR and OE controls referenced to VCCA. Its dual-rail architecture decouples A-port (VCCA-referenced) and B-port (VCCB-referenced) operation, enabling asynchronous translation without shared supply constraints.
It supports VCCA/VCCB as low as 1.2V and includes VCC isolation: if either VCCA or VCCB is at GND, both ports enter high-impedance state. Ioff circuitry disables outputs during partial power-down, preventing backflow current while maintaining 4.6V I/O tolerance on all pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCCA Range | 1.2V to 3.6V - powers A-port I/Os and all control inputs (DIR/OE) |
| VCCB Range | 1.2V to 3.6V - powers B-port I/Os only |
| Max Data Rate | 380Mbps - achievable only for 1.8V→3.3V translation; drops to 100Mbps for 1.2V translation |
| I/O Tolerance | 4.6V - allows safe interfacing with higher-voltage systems without level-shifting circuitry |
| Ioff Current | ±5μA max - ensures negligible leakage when VCCA or VCCB is unpowered |
| ESD Rating | 8kV HBM - meets industrial-grade robustness per JESD22-A114 |
| Operating Temp | –40°C to +85°C - qualified for extended industrial ambient conditions |
Pinout & Package
74AVC4T245RSVRG4 uses a 16-pin UQFN package (RSV) measuring 2.6mm × 1.8mm with wettable flanks and an exposed thermal pad. Pin numbering follows standard top-view orientation with pin 1 at top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input | Referenced to VCCA; high = A→B data flow, low = B→A data flow per channel |
| 1OE, 2OE | Output-enable input | Referenced to VCCA; high = 3-state (Hi-Z) on respective port outputs |
| 1A1–2A2 | A-port I/O | Bi-directional signals referenced to VCCA; must be driven to valid logic levels to avoid excess ICCZ |
| 1B1–2B2 | B-port I/O | Bi-directional signals referenced to VCCB; tolerate up to 4.6V regardless of VCCB |
| VCCA, VCCB | Power supplies | Independent rails; VCCA powers control logic and A-port; VCCB powers B-port only |
| GND | Ground | Two dedicated ground pins (pins 10 & 11) for low-inductance return path |
Key Features
| Feature | Design Value |
|---|---|
| Dual-rail voltage translation | Enables simultaneous 1.2V↔3.3V, 1.5V↔2.5V, or any combination within 1.2–3.6V range without external biasing |
| VCC isolation | Automatically places both ports in Hi-Z if either VCCA or VCCB is at GND - critical for hot-swap and power sequencing safety |
| Ioff partial-power-down | Prevents damaging backflow current when one rail is powered down while the other remains active |
| 4.6V-tolerant I/Os | Allows connection to legacy 3.3V or 5V systems without clamping diodes or resistive dividers |
| Configurable 3-state control | Independent OE per 2-bit channel enables selective isolation of data paths during multi-drop bus arbitration |
Applications
| Mobile SoC Interconnect | Industrial Sensor Hub |
|---|---|
Use Scenario: Connecting a 1.2V mobile application processor to a 3.3V display interface IC in a smartphone or tablet. IC Role / Device Role / Timing Role: Bidirectional level translator managing command/data flow between processor GPIOs and display controller, with precise timing control via DIR/OE. Use Value: Eliminates need for discrete MOSFET translators or resistor networks, reducing BOM count and PCB area while supporting 380Mbps pixel clock rates. | Use Scenario: Aggregating multiple 1.8V sensor outputs (I²C, SPI) into a 2.5V microcontroller-based gateway in factory automation equipment. IC Role / Device Role / Timing Role: Voltage-level bridging transceiver enabling reliable communication across mixed-voltage sensor subsystems with configurable channel enable/disable. Use Value: Provides deterministic 3-state isolation during sensor initialization or fault recovery, preventing bus contention on shared I²C lines. |
| Enterprise SSD Controller | Telecom Baseband Module |
Use Scenario: Interfacing a 1.5V NVMe controller ASIC to 3.3V PCIe PHY and flash memory buffers in enterprise solid-state drives. IC Role / Device Role / Timing Role: High-speed bidirectional data translator handling command/status traffic between controller and peripheral logic, synchronized to 100MHz+ clocks. Use Value: Delivers sub-3ns propagation delay (tPLH/tPHL) at 1.5V→3.3V, meeting tight timing budgets for PCIe Gen3/Gen4 auxiliary signaling. | Use Scenario: Level-shifting between 1.8V FPGA fabric and 2.5V RF front-end ICs in 5G small-cell baseband units. IC Role / Device Role / Timing Role: Low-latency, low-noise voltage translator for control and status signals in RF signal chain management. Use Value: Maintains signal integrity with <15pF I/O capacitance and 100mA latch-up immunity, ensuring stable operation in EMI-sensitive RF environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVC4T245PWG4 | TSSOP-16 package (5mm × 6.4mm); higher RθJA (102.8°C/W) vs RSV's 146.9°C/W; identical electrical specs | Suitable for prototyping or through-hole assembly; less suitable for space-constrained mobile designs | Select when board real estate permits larger footprint and hand-soldering is required |
| SN74LVC4T245RSVR | LVC family: lower drive strength (24mA vs 32mA), no 1.2V VCCA support, max 24mA IOL/IOH, no 4.6V tolerance | Not recommended for 1.2V systems or 4.6V-tolerant interfaces; limited to ≥1.65V operation | Choose only if cost sensitivity outweighs 1.2V compatibility and robustness requirements |
Compared with SN74AVC4T245PWG4 and SN74LVC4T245RSVR, the 74AVC4T245RSVRG4 uniquely combines ultra-compact UQFN packaging, full 1.2V–3.6V dual-rail support, and 4.6V I/O tolerance-making it the only option qualified for next-generation low-voltage, high-density portable and telecom designs requiring guaranteed interoperability across five voltage nodes.
Availability
74AVC4T245RSVRG4 is available at Aetrix Electronics and suitable for mobile SoC interconnect, industrial sensor hub, enterprise SSD controller, and telecom baseband module applications requiring stable component supply across extended temperature and mixed-voltage environments.
Supply support for 74AVC4T245RSVRG4 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 and embedded processing solutions, with over 90 years of innovation in precision analog, power management, and logic devices.
The SN74AVC4T245 product line targets low-voltage, high-speed bidirectional interface bridging in battery-powered and thermally constrained systems where voltage domain interoperability and power sequencing resilience are critical design requirements.
FAQ
What voltage ranges does the 74AVC4T245RSVRG4 support on its VCCA and VCCB rails?
The 74AVC4T245RSVRG4 supports 1.2V to 3.6V on both VCCA and VCCB independently. VCCA powers the A-port I/Os and all control inputs (1DIR, 2DIR, 1OE, 2OE), while VCCB powers only the B-port I/Os. This enables translation between any pair within the 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V domains. Operation at 1.2V is fully specified-not just functional but characterized for timing and drive strength.
How does the 74AVC4T245RSVRG4 handle power sequencing when VCCA and VCCB ramp at different rates?
The 74AVC4T245RSVRG4 incorporates VCC isolation: if either VCCA or VCCB is at GND, both A- and B-ports automatically enter high-impedance state. Additionally, tying OE to VCCA via a pullup resistor ensures outputs remain disabled until VCCA is stable. This prevents bus contention during asymmetric power-up/down sequences common in multi-rail systems.
What is the maximum data rate supported by the 74AVC4T245RSVRG4, and under what conditions?
The 74AVC4T245RSVRG4 achieves up to 380Mbps only when translating from 1.8V to 3.3V. Data rates decrease with lower voltage combinations: 200Mbps for <1.8V→3.3V or ↔2.5V/1.8V, 150Mbps for ↔1.5V, and 100Mbps for ↔1.2V. These values are measured under specified load and transition conditions per TI's switching characteristics tables and reflect guaranteed performance-not typical-only values.
Does the 74AVC4T245RSVRG4 require external pullup/pulldown resistors on DIR or OE inputs?
No external resistors are required on DIR or OE inputs because they are CMOS-compatible and referenced to VCCA. However, TI recommends tying OE to VCCA via a pullup resistor during power-up/down to guarantee high-impedance state before supplies stabilize. The minimum resistor value depends on the driver's sink capability; for most microcontrollers, 10kΩ suffices. DIR inputs may be driven directly from logic outputs without biasing.
Is the 74AVC4T245RSVRG4 pin-compatible with other packages in the SN74AVC4T245 family?
Yes-the 74AVC4T245RSVRG4 shares identical pin functionality and logic behavior with all SN74AVC4T245 variants (e.g., D, PW, RGY, BQB), including the same 16-pin assignment for DIR, OE, A/B I/Os, VCCA, VCCB, and GND. However, mechanical dimensions, thermal performance, and soldering requirements differ significantly between UQFN (RSV), WQFN (RGY), TSSOP (PW), and SOIC (D) packages-PCB layout must match the specific variant selected.
74AVC4T245RSVRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AVC
- Package/Case:
- 16-UFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Logic Type:
- Translation Transceiver
- Number of Elements:
- 2
- Number of Bits per Element:
- 2
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 12mA, 12mA
- Voltage - Supply:
- 0.8V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-UQFN (2.6x1.8)
74AVC4T245RSVRG4 FAQ
1.How can I place an order for 74AVC4T245RSVRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AVC4T245RSVRG4 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 74AVC4T245RSVRG4 reliable?
The price and inventory of 74AVC4T245RSVRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AVC4T245RSVRG4 is usually 5 days.
3.What payment methods are accepted for 74AVC4T245RSVRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AVC4T245RSVRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AVC4T245RSVRG4?
74AVC4T245RSVRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AVC4T245RSVRG4 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 74AVC4T245RSVRG4?
For technical support, including 74AVC4T245RSVRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AVC4T245RSVRG4 requirements.
6.How does Aetrix verify that 74AVC4T245RSVRG4 is sourced from the original manufacturer or authorized distributors?
All 74AVC4T245RSVRG4 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 74AVC4T245RSVRG4 meets industry standards.
7.What is the process for return or replacement of 74AVC4T245RSVRG4?
All 74AVC4T245RSVRG4 units undergo pre-shipment inspection (PSI). If there is an issue with 74AVC4T245RSVRG4, 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 74AVC4T245RSVRG4 part is unused and in its original packaging.
Return procedure for 74AVC4T245RSVRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74AVC4T245RSVRG4 Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
