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Texas Instruments 74CBTLV3253DGVRE4
- Part No.:
- 74CBTLV3253DGVRE4
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
74CBTLV3253DGVRE4.pdf
- Description:
- IC LV FET MUX/DEMUX 16-TVSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,000
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Product details
Overview
74CBTLV3253DGVRE4 from Texas Instruments is a dual 1-of-4 low-voltage FET multiplexer/demultiplexer with 5Ω ON-state resistance, rail-to-rail switching on all I/O ports, and Ioff support for partial-power-down operation. It operates from 2.3V to 3.6V supply and delivers sub-nanosecond propagation delay (tpd ≤ 0.25 ns at VCC = 3.3V), enabling high-speed signal routing in enterprise computing backplanes and wired networking switches.
For engineers reviewing the 74CBTLV3253DGVRE4 datasheet, 74CBTLV3253DGVRE4 pinout, 74CBTLV3253DGVRE4 application, or 74CBTLV3253DGVRE4 equivalent, this device serves as a functionally compatible replacement for QS3253 in 4:1 bidirectional signal path selection where low capacitance (Cio(OFF) = 5.5 pF on B port), high isolation (>100 mA latch-up rating), and power-off signal blocking are required.
Technical Context
The 74CBTLV3253DGVRE4 implements two independent 1-of-4 analog/digital FET switch arrays controlled by active-low OE and 2-bit S1/S0 select logic. Each channel supports bidirectional rail-to-rail signal transfer with no level-shifting requirement, and the Ioff feature actively blocks current flow when VCC = 0V, ensuring system-level safety during hot-swap or partial-power-down sequences.
Its TVSOP-16 package (3.60 mm × 4.40 mm) enables dense PCB layouts while maintaining thermal performance (RθJA = 123.1°C/W). The device meets JESD78 Class II latch-up immunity (>100 mA) and JEDEC JS-001 HBM ESD rating (±2000 V), making it suitable for industrial-grade interconnect applications requiring robustness against transient stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ON-state resistance (ron) | 5 Ω typical at VCC = 3V, II = 64 mA - ensures minimal voltage drop and signal distortion in high-current digital or analog paths |
| Propagation delay (tpd) | ≤ 0.25 ns at VCC = 3.3V - enables GHz-range signal routing without timing budget penalty |
| I/O capacitance (Cio(OFF)) | 5.5 pF on B port - reduces loading on source/sink nodes and preserves signal integrity in high-speed buses |
| Supply voltage range | 2.3 V to 3.6 V - compatible with 2.5V and 3.3V logic domains without external level translation |
| Operating temperature | –40°C to +85°C - qualified for industrial and enterprise infrastructure environments |
| ESD rating (HBM) | ±2000 V - provides robust handling margin during board assembly and field service |
| Latch-up immunity | >100 mA per JESD78 Class II - prevents destructive failure under I/O overvoltage or ground bounce |
Pinout & Package
74CBTLV3253DGVRE4 uses a 16-pin TVSOP (Thin Very Small Outline Package) with 0.5 mm pitch, footprint dimensions of 3.60 mm × 4.40 mm, and exposed pad for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE | Active-low output enable | Disables both multiplexers simultaneously; high state forces all B-port I/Os into high-impedance mode |
| S0, S1 | Binary select inputs | Control which of four B-port channels connects to corresponding A-port; decoded per truth table |
| 1A, 2A | Common I/O terminals | Bidirectional signal interface for Channel 1 and Channel 2; connect to system bus or controller |
| 1B1–1B4, 2B1–2B4 | Channel I/O terminals | Four selectable bidirectional paths per channel; support simultaneous 2×4:1 routing |
| VCC | Power supply | Single 2.3–3.6V supply powers internal FET gates and logic; bypass capacitor required |
| GND | Ground reference | Return path for all signals and supply current; must be low-impedance for noise control |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail switching | Supports full 0V to VCC signal swing on all I/O ports - eliminates need for external biasing in mixed-voltage systems |
| Ioff partial-power-down | Blocks >99% of backflow current when VCC = 0V - enables safe hot-plug operation in modular chassis |
| 5Ω low ON-resistance | Minimizes insertion loss and duty-cycle distortion in clock/data lines up to 500 MHz |
| Functionally equivalent to QS3253 | Drop-in replacement with identical pinout, timing, and electrical behavior - simplifies legacy design migration |
| High ESD and latch-up immunity | ±2000 V HBM and >100 mA JESD78 Class II rating - reduces field failure risk in unshielded enclosures |
Applications
| Enterprise Server Backplane Switching | Industrial Ethernet PHY Multiplexing |
|---|---|
Use Scenario: Routing PCIe or SATA lanes between redundant controllers and storage modules in 1U rack servers. IC Role / Device Role / Timing Role: Dual 4:1 FET mux selects active data path while maintaining signal integrity across 2.5–8 Gbps links. Use Value: 5Ω ron and 5.5 pF Cio(OFF) limit jitter accumulation and insertion loss, preserving eye diagram margins at multi-gigabit rates. |
Use Scenario: Sharing a single Ethernet PHY between multiple MAC interfaces in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional analog switch routes MDI/MDIO signals under software control without signal degradation. Use Value: Rail-to-rail operation supports 0–3.3V PHY signaling; Ioff prevents cross-talk during PHY reconfiguration. |
| Video Broadcast IP Transcoder I/O Expansion | Motor Drive Control Signal Isolation |
Use Scenario: Expanding GPIO and status lines from a baseband processor to multiple video encoder ASICs in broadcast transcoders. IC Role / Device Role / Timing Role: Low-latency signal routing for frame sync, interrupt, and configuration signals across distributed subsystems. Use Value: Sub-0.3 ns tpd ensures deterministic timing alignment; 2.3–3.6V operation matches FPGA I/O banks. |
Use Scenario: Isolating PWM and fault feedback signals between MCU and gate drivers in servo motor inverters. IC Role / Device Role / Timing Role: High-reliability analog switch providing galvanic separation for safety-critical control loops. Use Value: Ioff blocks fault currents during power sequencing; latch-up immunity prevents latch-up-induced shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FET multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74CBTLV3253DR | SOIC-16 package (9.90 mm × 3.90 mm); higher RθJA (102.5°C/W); same electrical specs | Preferred for through-hole prototyping or legacy PCBs with SOIC footprints | Select when board space allows larger package and thermal management uses heatsinking or airflow |
| SN74CBTLV3253RGYR | VQFN-16 package (4.00 mm × 3.50 mm); lower RθJA (78.4°C/W); identical switching performance | Optimized for compact, thermally constrained designs such as fanless edge compute modules | Select when minimizing footprint and junction temperature rise is critical in sealed enclosures |
Compared with SN74CBTLV3253DR and SN74CBTLV3253RGYR, the 74CBTLV3253DGVRE4 offers the best balance of compactness (TVSOP), manufacturability (lead-free, Level-1 MSL), and thermal performance (123.1°C/W) for volume production of mid-density networking equipment.
Availability
74CBTLV3253DGVRE4 is available at Aetrix Electronics and suitable for enterprise server backplanes, industrial Ethernet switches, and broadcast video transcoders requiring stable component supply across multi-year production cycles.
Supply support for 74CBTLV3253DGVRE4 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 decades of experience in high-reliability interface solutions.
The CBTLV logic family, including the 74CBTLV3253DGVRE4, was designed specifically for low-voltage, high-speed signal routing in datacenter, telecom, and industrial infrastructure-prioritizing minimal propagation delay, rail-to-rail compatibility, and robust power-down behavior.
FAQ
What is the maximum operating frequency supported by the 74CBTLV3253DGVRE4?
The 74CBTLV3253DGVRE4 does not specify a hard maximum frequency but supports signal routing up to 500 MHz in practice due to its 5Ω ON-resistance and 5.5 pF OFF-capacitance. Measured propagation delay is ≤0.25 ns at 3.3V, enabling use in PCIe Gen1/Gen2, SATA I/II, and DDR2 clock/data paths where timing budgets permit sub-nanosecond skew. Layout-dependent trace impedance and capacitive loading ultimately determine usable bandwidth.
Does the 74CBTLV3253DGVRE4 support hot-swap or partial-power-down operation?
Yes, the 74CBTLV3253DGVRE4 fully supports partial-power-down via its Ioff feature: when VCC = 0V, leakage current is limited to 15 µA max, preventing damaging backflow current from live I/O lines into the unpowered device. This enables safe hot-plug insertion in modular server and telecom chassis where subsystems power up/down independently.
Is the 74CBTLV3253DGVRE4 pin-compatible with the QS3253?
Yes, the 74CBTLV3253DGVRE4 is functionally and pin-compatible with the IDT QS3253. Both devices share identical pin assignments, logic behavior (active-low OE, binary S1/S0 decode), electrical specifications (5Ω ron, rail-to-rail I/O), and timing parameters-enabling direct substitution without PCB or firmware changes.
What is the recommended bypass capacitor for the 74CBTLV3253DGVRE4?
A 0.1 µF ceramic capacitor placed as close as possible to the VCC pin (Pin 16) and GND (Pin 8) is recommended for the 74CBTLV3253DGVRE4. This minimizes high-frequency supply noise and stabilizes internal FET gate drive during fast switching transitions. For systems with shared VCC rails, additional bulk capacitance (e.g., 1 µF–10 µF) may be added nearby.
Can the 74CBTLV3253DGVRE4 handle signals above its VCC supply voltage?
Yes, the 74CBTLV3253DGVRE4 supports overvoltage-tolerant I/O: data and control pins tolerate voltages up to 4.6 V regardless of VCC setting (2.3–3.6 V), as specified in Absolute Maximum Ratings. This allows safe interfacing with 5V-tolerant peripherals or legacy 3.3V/5V mixed-signal systems without external clamping diodes.
74CBTLV3253DGVRE4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74CBTLV
- Package/Case:
- 16-TFSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- 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-TVSOP
74CBTLV3253DGVRE4 FAQ
1.How can I place an order for 74CBTLV3253DGVRE4 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74CBTLV3253DGVRE4 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 74CBTLV3253DGVRE4 reliable?
The price and inventory of 74CBTLV3253DGVRE4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74CBTLV3253DGVRE4 is usually 5 days.
3.What payment methods are accepted for 74CBTLV3253DGVRE4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74CBTLV3253DGVRE4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74CBTLV3253DGVRE4?
74CBTLV3253DGVRE4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74CBTLV3253DGVRE4 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 74CBTLV3253DGVRE4?
For technical support, including 74CBTLV3253DGVRE4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74CBTLV3253DGVRE4 requirements.
6.How does Aetrix verify that 74CBTLV3253DGVRE4 is sourced from the original manufacturer or authorized distributors?
All 74CBTLV3253DGVRE4 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 74CBTLV3253DGVRE4 meets industry standards.
7.What is the process for return or replacement of 74CBTLV3253DGVRE4?
All 74CBTLV3253DGVRE4 units undergo pre-shipment inspection (PSI). If there is an issue with 74CBTLV3253DGVRE4, 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 74CBTLV3253DGVRE4 part is unused and in its original packaging.
Return procedure for 74CBTLV3253DGVRE4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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