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Texas Instruments 74CBTLV3253DBQRG4
- Part No.:
- 74CBTLV3253DBQRG4
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
74CBTLV3253DBQRG4.pdf
- Description:
- IC MUX/DEMUX 2 X 4:1 16SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,946
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Product details
Overview
74CBTLV3253DBQRG4 from Texas Instruments is a dual 1-of-4 FET multiplexer/demultiplexer optimized for low-voltage (2.3 V to 3.6 V) high-speed signal routing in video broadcasting and communications systems. It features 5 Ω typical ON-state resistance, rail-to-rail I/O switching, Ioff partial-power-down protection, and operates across –40°C to +85°C.
For engineers reviewing the 74CBTLV3253DBQRG4 datasheet, 74CBTLV3253DBQRG4 pinout, 74CBTLV3253DBQRG4 application, or 74CBTLV3253DBQRG4 equivalent, this device supports simultaneous 2-channel 4:1 mux/demux with sub-1 ns propagation delay, active-low OE control per channel, and robust ESD tolerance (2000 V HBM).
Technical Context
The 74CBTLV3253DBQRG4 implements two independent 1-of-4 bidirectional analog/digital switches using low-threshold FETs. Each channel uses S0/S1 binary select inputs and dedicated active-low OE pins (1OE, 2OE) to enable/disable routing between common port (1A/2A) and four I/O ports (1B1–1B4 / 2B1–2B4).
Its Ioff specification ensures <15 µA leakage when VCC = 0 V, enabling safe back-drive isolation during partial power-down. The device maintains rail-to-rail signal integrity with VI/O tolerance up to 4.6 V regardless of VCC level, supporting mixed-voltage interface bridging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.3 V to 3.6 V - Enables operation in modern low-power 2.5 V and 3.3 V systems without level-shifting. |
| ON-State Resistance | 5 Ω (typ) at VCC = 2.5 V - Minimizes insertion loss and signal distortion in high-frequency data paths. |
| Propagation Delay | 0.15 ns (min) - Supports >1 GHz signal routing with negligible timing skew in critical paths. |
| Ioff Leakage | 15 µA max at VCC = 0 V - Prevents damaging back-current flow during hot-swap or partial power-down sequences. |
| ESD Rating | 2000 V HBM - Meets industrial-grade electrostatic discharge immunity requirements without external protection. |
| Operating Temperature | –40°C to +85°C - Qualified for use in extended-temperature industrial and broadcast equipment environments. |
| Switch I/O Voltage Range | –0.5 V to 4.6 V - Allows overvoltage-tolerant signal handling beyond VCC, simplifying interface design. |
Pinout & Package
74CBTLV3253DBQRG4 is packaged in a 16-pin SSOP (Shrink Small-Outline Package) with 0.65 mm lead pitch and 4.90 mm × 3.90 mm body size. This compact surface-mount package supports high-density PCB layouts while maintaining thermal performance (RθJA = 112.4°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE | Active-low output enable for Channel 1 | Drives all Channel 1 switches into high-impedance state when logic HIGH; ties to VCC via pullup for power-up safety. |
| S1, S0 | Binary select inputs for both channels | Set which of four B-port connections (B1–B4) routes to A-port; shared between channels for synchronized selection. |
| 1A, 2A | Common I/O ports (Channel 1 & 2) | Bidirectional signal path endpoints; connect to system buses or processors requiring flexible routing. |
| 1B1–1B4, 2B1–2B4 | Individual I/O ports per channel | Four selectable bidirectional paths per channel; support point-to-multipoint or multipoint-to-point configurations. |
| 2OE | Active-low output enable for Channel 2 | Independent control enables asymmetric channel activation-e.g., route only Channel 1 while holding Channel 2 isolated. |
| VCC, GND | Power supply and reference | Single 2.3–3.6 V supply; decoupling capacitor (0.1 µF) required near VCC pin to suppress switching noise. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail I/O switching | Supports full-swing signals from –0.5 V to 4.6 V regardless of VCC, enabling interoperability with legacy 5 V logic and mixed-supply systems. |
| 5 Ω low ON-resistance | Reduces voltage drop and power dissipation in high-current digital or analog signal paths, preserving signal integrity up to 100 MHz. |
| Ioff partial-power-down | Guarantees <15 µA off-state current when VCC = 0 V, preventing backflow damage during hot-plug or power sequencing events. |
| Dual independent channels | Enables concurrent 4:1 multiplexing on two separate data streams-e.g., stereo audio, dual video lanes, or redundant control buses. |
| Sub-1 ns propagation delay | Ensures minimal timing skew between selected paths, critical for high-speed parallel interfaces like DDR memory test fixtures or FPGA I/O expansion. |
Applications
| Video Broadcasting Infrastructure | High-Speed Test Equipment |
|---|---|
|
Use Scenario: IP-based multi-format video transcoders requiring dynamic routing of HDMI or SDI signals between encoding engines and output modules. IC Role / Device Role / Timing Role: Dual 4:1 analog/digital switch enabling real-time reconfiguration of video data lanes without interrupting system operation. Use Value: 5 Ω Ron and rail-to-rail operation preserve signal fidelity across 3 Gbps video rates; Ioff prevents latch-up during encoder firmware updates. |
Use Scenario: Automated test equipment (ATE) switching multiple DUTs to shared measurement instruments under microcontroller control. IC Role / Device Role / Timing Role: Bidirectional signal router isolating test probes from unused DUTs while maintaining nanosecond-level timing precision. Use Value: Sub-1 ns tpd ensures accurate timing capture; independent OE pins allow per-DUT power gating without affecting other test channels. |
| Industrial Communication Gateways | FPGA I/O Expansion |
|
Use Scenario: Protocol-agnostic fieldbus gateways consolidating Modbus, CAN, and RS-485 traffic onto a single processor interface. IC Role / Device Role / Timing Role: Level-translating multiplexer bridging disparate voltage domains (e.g., 3.3 V MCU to 5 V legacy bus transceivers). Use Value: 4.6 V I/O tolerance eliminates external level shifters; dual channels support simultaneous serial port arbitration and diagnostics access. |
Use Scenario: FPGA-based vision systems expanding limited I/O pins to drive multiple camera sensors or display interfaces. IC Role / Device Role / Timing Role: High-bandwidth signal selector routing pixel clock, sync, and data lines between FPGA banks and peripheral modules. Use Value: Low capacitance (5.5 pF B-port OFF-capacitance) minimizes signal degradation; SSOP package fits tight FPGA carrier board layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FET multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBTLV3253DBQR | Same silicon die and electrical specs; RoHS-compliant CU NIPDAU finish, MSL Level-2 rating. | No functional difference; identical pinout, timing, and thermal behavior. | Select 74CBTLV3253DBQRG4 only if G4 suffix (TI's green/RoHS+halogen-free marking) is required for compliance documentation. |
| QS3253M | Functionally equivalent per TI documentation; 5.5 Ω Ron (typ), same 16-pin SSOP footprint but different marking and packaging. | Validated in legacy telecom designs; slightly higher Ron increases insertion loss marginally at >100 MHz. | Choose QS3253M for drop-in replacement where existing qualification data exists; verify MSL handling due to differing moisture sensitivity profile. |
Compared with SN74CBTLV3253DBQR and QS3253M, the 74CBTLV3253DBQRG4 offers identical core functionality but includes TI's latest green material specification and tighter process controls for enhanced long-term reliability in high-volume industrial deployments.
Availability
74CBTLV3253DBQRG4 is available at Aetrix Electronics and suitable for video broadcasting infrastructure, high-speed test equipment, and industrial communication gateways requiring stable component supply with guaranteed long-term availability.
Supply support for 74CBTLV3253DBQRG4 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 connectivity technologies with over 90 years of innovation in high-reliability components.
The SN74CBTLV3253 product line delivers ultra-low-latency, low-power signal routing ICs designed specifically for high-fidelity video, test instrumentation, and industrial interface consolidation applications.
FAQ
What is the maximum signal frequency supported by the 74CBTLV3253DBQRG4?
The 74CBTLV3253DBQRG4 does not specify a hard maximum frequency limit, but its 5 Ω ON-resistance and 5.5 pF OFF-capacitance support clean signal transmission up to at least 100 MHz in typical PCB layouts. Propagation delay of 0.15 ns confirms suitability for sub-1 GHz digital routing when combined with proper impedance control and layout practices.
Does the 74CBTLV3253DBQRG4 require external pull-up resistors on OE pins?
Yes - to ensure high-impedance state during power-up or brownout, 1OE and 2OE must be tied to VCC through pull-up resistors. TI recommends minimum values based on driver sink capability; typical values range from 4.7 kΩ to 10 kΩ for standard CMOS drivers, as specified in the device's Detailed Description section.
Can the 74CBTLV3253DBQRG4 interface between 3.3 V and 5 V systems?
Yes - the 74CBTLV3253DBQRG4 supports I/O voltages from –0.5 V to 4.6 V independent of VCC, allowing safe connection to 5 V logic outputs when powered from 3.3 V. However, it cannot drive 5 V logic high levels directly; external level-shifting is needed for bidirectional 5 V signaling.
What is the thermal resistance (RθJA) of the 74CBTLV3253DBQRG4 in its SSOP package?
The 74CBTLV3253DBQRG4 in SSOP (DBQ) package has a junction-to-ambient thermal resistance (RθJA) of 112.4°C/W under standard JEDEC test conditions. This value assumes a 2-layer PCB with minimal copper; actual performance improves significantly with thermal vias and internal ground/power planes.
Is the 74CBTLV3253DBQRG4 pin-compatible with the QS3253 family?
Yes - the 74CBTLV3253DBQRG4 is functionally equivalent to the QS3253 and shares identical pin configuration, electrical behavior, and timing characteristics. TI explicitly states this equivalence in the Features and Feature Description sections of the official datasheet.
74CBTLV3253DBQRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74CBTLV
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Multiplexer/Demultiplexer
- Circuit:
- 2 x 4:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- -
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 2.3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SSOP
74CBTLV3253DBQRG4 FAQ
1.How can I place an order for 74CBTLV3253DBQRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74CBTLV3253DBQRG4 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 74CBTLV3253DBQRG4 reliable?
The price and inventory of 74CBTLV3253DBQRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74CBTLV3253DBQRG4 is usually 5 days.
3.What payment methods are accepted for 74CBTLV3253DBQRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74CBTLV3253DBQRG4 transactions.
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4.How is shipping managed for 74CBTLV3253DBQRG4?
74CBTLV3253DBQRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74CBTLV3253DBQRG4 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 74CBTLV3253DBQRG4?
For technical support, including 74CBTLV3253DBQRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74CBTLV3253DBQRG4 requirements.
6.How does Aetrix verify that 74CBTLV3253DBQRG4 is sourced from the original manufacturer or authorized distributors?
All 74CBTLV3253DBQRG4 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 74CBTLV3253DBQRG4 meets industry standards.
7.What is the process for return or replacement of 74CBTLV3253DBQRG4?
All 74CBTLV3253DBQRG4 units undergo pre-shipment inspection (PSI). If there is an issue with 74CBTLV3253DBQRG4, 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 74CBTLV3253DBQRG4 part is unused and in its original packaging.
Return procedure for 74CBTLV3253DBQRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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