74CBTLV3257DBQRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments 74CBTLV3257DBQRG4 is a quad 2:1 multiplexer/demultiplexer in the CBTLV logic family, operating from 1.65V to 3.6V. It supports 4 independent channels with 50 pF load capacitance handling and ultra-low channel resistance for high-speed bus switching applications. Available in a 16-pin SSOP package with RoHS-compliant e4 lead-free finish.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- 74CBTLV3257DBQRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of 74CBTLV3257DBQRG4?
- Quad 2:1 multiplexer/demultiplexer architecture with 4 independent switching channels ideal for bus signal routing
- Low-voltage operation from 1.65V to 3.6V compatible with modern sub-3.3V logic systems and LVCMOS interfaces
- Ultra-low ON-state resistance enabling transparent signal switching with minimal voltage drop across channels
- 16-pin SSOP package with RoHS e4 lead-free qualification for compact, environmentally compliant PCB designs
What is 74CBTLV3257DBQRG4 used for?
The 74CBTLV3257DBQRG4 is used in memory bus expansion, processor data routing, and peripheral multiplexing in laptops, embedded controllers, and communications equipment operating at 1.8V or 3.3V logic levels. Its 4-channel structure allows a single IC to select between two independent data buses, reducing component count in space-constrained designs. The device is also well-suited for test and measurement equipment where flexible signal routing between 4 inputs and 2 outputs is required.
What are the specifications of 74CBTLV3257DBQRG4?
| YTEOL | 15 |
| Family | CBTLV/3B |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | MULTIPLEXER AND DEMUX/DECODER |
| Number of Functions | 4 |
| Number of Inputs | 4 |
| Number of Outputs | 2 |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SSOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, SHRINK PITCH |
| Packing Method | TR, 13 INCH |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.01mA |
| Prop. Delay@Nom-Sup | 0.25ns |
| Propagation Delay (tpd) | 0.25ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 2.3V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.635mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Mexico |
Where can I find the 74CBTLV3257DBQRG4 datasheet?
74CBTLV3257DBQRG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for 74CBTLV3257DBQRG4?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many independent switching channels does the 74CBTLV3257DBQRG4 provide, and what supply voltage range does it support?
The 74CBTLV3257DBQRG4 provides 4 independent 2:1 multiplexer channels, each switchable individually. It operates from 1.65V to 3.6V supply, making it compatible with 1.8V and 3.3V logic systems. With 50 pF load capacitance per channel, it handles high-speed digital signals without significant signal degradation.
In what scenarios is the 74CBTLV3257DBQRG4 a better choice than a standard 74CBT3257 for a 3.3V bus switching application?
The 74CBTLV3257DBQRG4 belongs to the low-voltage CBTLV family and tolerates supply voltages as low as 1.65V, whereas the standard CBT variant typically requires 3.3V minimum. If the design uses a 1.8V core logic rail but still needs to mux 3.3V bus signals, the CBTLV part handles mixed-voltage scenarios better. It also fits in the same 16-pin SSOP footprint for a direct substitution path.
What package does the 74CBTLV3257DBQRG4 use, and how does it affect PCB routing for 4 dual-input channels?
The 74CBTLV3257DBQRG4 is housed in a 16-pin SSOP (Small Outline Shrink Package) with 0.635 mm pin pitch. Routing 4 dual-input channels in this compact footprint requires careful trace impedance control, but the narrow body keeps the IC under 6 mm wide, saving significant board area compared to wider DIP or SOIC alternatives.
Can the 74CBTLV3257DBQRG4 handle bidirectional data bus signals, or is it limited to unidirectional muxing?
Yes, the 74CBTLV3257DBQRG4 is a bidirectional bus switch, meaning data can flow in either direction through each of the 4 channels. This makes it suitable for bidirectional data buses such as I2C, parallel memory interfaces, and processor expansion buses. The device's TRUE output polarity ensures no inversion during signal transfer.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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