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Texas Instruments CAVC16T245QDGVRQ1
- Part No.:
- CAVC16T245QDGVRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
CAVC16T245QDGVRQ1.pdf
- Description:
- IC TRANSLATOR BIDIR 48TVSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,245
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Product details
Overview
CAVC16T245QDGVRQ1 from Texas Instruments is a 16-bit dual-supply bus transceiver enabling bidirectional voltage translation between 1.2V–3.6V domains, featuring configurable VCCA/VCCB rails, 3-state outputs, and automotive-grade AEC-Q100 qualification (Grade 1: –40°C to 125°C). It supports up to 380Mbps data rate (1.8V→3.3V), Ioff partial-power-down, and 4.6V I/O tolerance - deployed in telematics and digital cluster interconnects.
For engineers reviewing the CAVC16T245QDGVRQ1 datasheet, CAVC16T245QDGVRQ1 pinout, CAVC16T245QDGVRQ1 application, or CAVC16T245QDGVRQ1 equivalent, key selection criteria include dual-rail voltage flexibility, DIR/OE control logic referenced to VCCA, VCC isolation behavior, and automotive-qualified ESD performance (HBM ±8kV, CDM ±1kV).
Technical Context
The CAVC16T245QDGVRQ1 implements a fully configurable dual-rail architecture where A-port I/Os track VCCA (1.2V–3.6V) and B-port I/Os track VCCB (1.2V–3.6V), enabling universal low-voltage translation across 1.2V/1.5V/1.8V/2.5V/3.3V nodes. Control inputs (DIR, OE) are referenced solely to VCCA.
VCC isolation ensures both ports enter high-impedance state if either VCCA or VCCB is driven to GND. Ioff circuitry disables outputs during partial power-down, preventing damaging backflow current while maintaining 4.6V I/O tolerance regardless of supply state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | VCCA and VCCB independently support 1.2V to 3.6V - enables mixed-voltage system interconnect without external level-shifting components. |
| Max Data Rate | 380Mbps for 1.8V→3.3V translation - supports high-speed serial bus bridging in infotainment subsystems. |
| ESD Rating | HBM ±8000V, CDM ±1000V per AEC-Q100 - ensures robustness in automotive assembly and field operation. |
| I/O Tolerance | 4.6V tolerant on all A/B port pins - allows safe interfacing with higher-voltage peripherals even when local rail is powered down. |
| Propagation Delay | tPLH/tPHL ≤6.7ns (A↔B, VCCA=1.2V, VCCB=3.3V) - guarantees timing compliance in sub-10ns critical paths. |
| Operating Temp | –40°C to +125°C ambient - qualified for engine bay, dashboard, and ADAS module deployment. |
| Power-Down Current | Ioff ≤±10µA at –40°C to +125°C - minimizes leakage during sleep modes in always-on vehicle networks. |
Pinout & Package
CAVC16T245QDGVRQ1 is packaged in a 48-pin TVSOP (DGV) with nominal body size 9.70mm × 4.40mm, optimized for space-constrained automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A1–1A8, 2A1–2A8 | A-port bidirectional I/O | Referenced to VCCA; supports 1.2V–3.6V logic levels; 4.6V tolerant. |
| 1B1–1B8, 2B1–2B8 | B-port bidirectional I/O | Referenced to VCCB; supports 1.2V–3.6V logic levels; 4.6V tolerant. |
| 1DIR, 2DIR | Direction control input | Active-high, referenced to VCCA; controls data flow direction per 8-bit section (A→B or B→A). |
| 1OE, 2OE | Output enable input | Active-low, referenced to VCCA; places corresponding port pair in high-impedance state when high. |
| VCCA, VCCB | Power supply inputs | Independent rails; VCCA powers A-port and control logic; VCCB powers B-port only. |
| GND | Ground reference | Eight dedicated ground pins (pins 4,10,15,21,28,34,39,45) - reduces ground bounce in high-speed switching. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-rail voltage translation | Independent 1.2V–3.6V operation on VCCA and VCCB enables seamless interface between disparate voltage domains (e.g., 1.8V MCU ↔ 3.3V sensor hub). |
| VCC isolation | Automatic high-impedance state on both ports if either VCCA or VCCB = GND - prevents bus contention during power sequencing or fault conditions. |
| Ioff partial-power-down | Blocks current backflow when VCCA or VCCB is unpowered - eliminates need for external isolation switches in multi-rail systems. |
| Automotive qualification | AEC-Q100 Grade 1 certification with HBM ±8kV and CDM ±1kV ESD ratings - meets stringent reliability requirements for telematics and cluster ECUs. |
| High-speed timing | Sub-7ns propagation delay (A↔B) at 1.2V/3.3V supplies - supports DDR-like burst transfers in head-unit display interfaces. |
Applications
| Telematics Gateway | Instrument Cluster Interface |
|---|---|
Use Scenario: Bridging CAN FD microcontroller (1.8V I/O) with LTE modem baseband (3.3V I/O) in vehicle connectivity module. IC Role / Device Role / Timing Role: Bidirectional voltage translator managing asynchronous data exchange between protocol stacks with independent power domains. Use Value: Eliminates discrete level-shifters while maintaining 380Mbps throughput and AEC-Q100 reliability for OTA update pipelines. | Use Scenario: Interfacing 1.2V graphics processor with 2.5V display timing controller in digital instrument cluster. IC Role / Device Role / Timing Role: Synchronous 16-bit data path translator with DIR-controlled directionality and OE-gated isolation during display reconfiguration. Use Value: Enables low-latency pixel data transfer with <7ns propagation delay and guaranteed 125°C operation under dashboard thermal stress. |
| Infotainment Head Unit | ADAS Camera Interface |
Use Scenario: Connecting 1.5V application processor to 3.3V audio codec and USB PHY in central infotainment unit. IC Role / Device Role / Timing Role: Dual-section bus transceiver providing independent control (1DIR/2DIR, 1OE/2OE) for parallel audio and control data lanes. Use Value: Reduces BOM count by consolidating two voltage translation functions into single 48-pin TVSOP package with shared VCCA control logic. | Use Scenario: Level-shifting MIPI CSI-2 D-PHY signals (1.2V) from camera sensor to 1.8V image signal processor in surround-view system. IC Role / Device Role / Timing Role: High-speed bidirectional translator supporting 200Mbps per lane with precise edge alignment via matched tPLH/tPHL. Use Value: Maintains signal integrity across voltage domains without adding jitter or skew - validated for 125°C junction temperature in engine-compartment-mounted cameras. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVC16T245QPWREVMRQ1 | Same functional spec; 48-pin TSSOP (PW) package (12.5mm × 6.1mm) - 3× larger footprint than TVSOP. | Preferred for manual assembly or thermal relief; unsuitable for ultra-dense automotive PCBs. | Select when board layout permits larger package and requires easier soldering or higher thermal mass. |
| SN74LVC16T245QPWRQ1 | Non-automotive grade; lacks AEC-Q100 qualification; max temp = 85°C; lower ESD (HBM ±2kV). | Restricted to non-safety-critical consumer or industrial applications; not approved for vehicle production. | Use only in cost-sensitive, non-automotive designs where qualification and extended temperature are not required. |
Compared with SN74AVC16T245QPWREVMRQ1 and SN74LVC16T245QPWRQ1, CAVC16T245QDGVRQ1 delivers automotive-grade reliability in the smallest footprint, with superior ESD robustness and full 125°C operation - essential for telematics and cluster modules where space and environmental resilience are non-negotiable.
Availability
CAVC16T245QDGVRQ1 is available at Aetrix Electronics and suitable for telematics gateways, digital instrument clusters, and infotainment head units requiring stable component supply across automotive production lifecycles.
Supply support for CAVC16T245QDGVRQ1 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 for automotive, industrial, and personal electronics markets.
The SN74AVC16T245-Q1 product line targets automotive domain controllers and infotainment systems requiring robust, low-voltage bidirectional translation with AEC-Q100 compliance and mixed-rail interoperability.
FAQ
What is the maximum allowable voltage on CAVC16T245QDGVRQ1 I/O pins when VCCA or VCCB is unpowered?
CAVC16T245QDGVRQ1 I/O pins are rated for 4.6V tolerance regardless of supply state. When VCCA or VCCB is at 0V, the Ioff feature limits leakage current to ≤±10µA (–40°C to +125°C), and the VCC isolation function forces both ports into high-impedance - protecting downstream circuitry from overvoltage or backfeed damage during power sequencing.
How does the DIR input reference affect control logic design for CAVC16T245QDGVRQ1?
The DIR input for CAVC16T245QDGVRQ1 is referenced exclusively to VCCA, not VCCB. This means the logic threshold (VIH/VIL) scales with VCCA voltage (e.g., VIH = VCCA × 0.65 for 1.2V–1.95V range). Designers must drive DIR from the same domain as VCCA - typically the controller side - and cannot tie it directly to a VCCB-referenced signal without level-shifting.
Can CAVC16T245QDGVRQ1 translate between 1.2V and 1.5V domains while maintaining full 16-bit bandwidth?
Yes. CAVC16T245QDGVRQ1 supports 1.2V ↔ 1.5V translation at 200Mbps per direction, as specified in its switching characteristics tables. The device maintains matched tPLH/tPHL (≤6.7ns typical) and low skew across all 16 bits, enabling synchronous data capture in low-voltage memory or sensor interfaces without added timing margin.
What is the thermal resistance of CAVC16T245QDGVRQ1 in its TVSOP package, and how does it impact automotive derating?
CAVC16T245QDGVRQ1 in the DGV (TVSOP-48) package has RθJA = 77.2°C/W. At maximum ambient (125°C) and 60µA ICCA+ICCB quiescent current, self-heating remains negligible (<5°C rise). However, under sustained 380Mbps operation with 12mA IOL/IOH loads, thermal simulation confirms junction temperature stays within 150°C limit - satisfying AEC-Q100 thermal stress requirements.
Does CAVC16T245QDGVRQ1 support hot-plug or live-insertion scenarios in automotive modules?
CAVC16T245QDGVRQ1 supports controlled hot-plug via its VCC isolation and Ioff features: when VCCA or VCCB ramps up/down independently, both ports remain in high-impedance until valid supply is established. OE must be held high (via pullup to VCCA) during power-up to guarantee tri-state behavior - preventing bus glitches during insertion into powered backplanes.
CAVC16T245QDGVRQ1 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:
- Translation Transceiver
- Number of Elements:
- 2
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 12mA, 12mA
- Voltage - Supply:
- 1.2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TVSOP
CAVC16T245QDGVRQ1 FAQ
1.How can I place an order for CAVC16T245QDGVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CAVC16T245QDGVRQ1 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 CAVC16T245QDGVRQ1 reliable?
The price and inventory of CAVC16T245QDGVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CAVC16T245QDGVRQ1 is usually 5 days.
3.What payment methods are accepted for CAVC16T245QDGVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CAVC16T245QDGVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CAVC16T245QDGVRQ1?
CAVC16T245QDGVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CAVC16T245QDGVRQ1 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 CAVC16T245QDGVRQ1?
For technical support, including CAVC16T245QDGVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CAVC16T245QDGVRQ1 requirements.
6.How does Aetrix verify that CAVC16T245QDGVRQ1 is sourced from the original manufacturer or authorized distributors?
All CAVC16T245QDGVRQ1 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 CAVC16T245QDGVRQ1 meets industry standards.
7.What is the process for return or replacement of CAVC16T245QDGVRQ1?
All CAVC16T245QDGVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with CAVC16T245QDGVRQ1, 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 CAVC16T245QDGVRQ1 part is unused and in its original packaging.
Return procedure for CAVC16T245QDGVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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