SN74CBTLV3251DIn StockTexas Instruments
SN74CBTLV3251D is a single 8:1 bus exchange multiplexer/demultiplexer from Texas Instruments, featuring low-voltage CBTLV logic with bidirectional operation and active-low enable control. From $0.48 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- SN74CBTLV3251D Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.4825(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Single 8:1 multiplexer/demultiplexer with bidirectional data flow
- Low-voltage CBTLV/3B family for 3.3V system compatibility
- Active-low enable control for flexible bus switching
- Supports 30 pF load capacitance for signal integrity
- Compact 16-pin SOIC package for space-constrained designs
Applications
The SN74CBTLV3251D is widely used in data bus switching and signal routing applications in embedded systems, networking equipment, and telecommunications hardware. Its bidirectional 8:1 multiplexing capability makes it ideal for memory bus expansion, CPU-to-peripheral interface switching, and multi-channel data path selection. The low-voltage CBTLV logic family ensures compatibility with modern 3.3V digital systems and high-speed board designs.
Specifications
| YTEOL | 0 |
| Control Type | ENABLE LOW |
| Count Direction | BIDIRECTIONAL |
| Family | CBTLV/3B |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 30pF |
| Logic IC Type | BUS EXCHANGER |
| Number of Bits | 8 |
| Number of Functions | 1 |
| Number of Ports | 3 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.01mA |
| Prop. Delay@Nom-Sup | 0.15ns |
| 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) | 2.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| 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 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Mexico |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the supply voltage range for the SN74CBTLV3251D?
The SN74CBTLV3251D operates from a 3.3V supply voltage, consistent with the CBTLV low-voltage logic family. It is designed for 3.3V systems and provides transparent bus switching with minimal voltage drop across the FET switches.
How does the enable control work on the SN74CBTLV3251D?
The SN74CBTLV3251D uses an active-low enable (OE#) pin. When OE# is driven low, the selected data path between the common port and one of the 8 channels is enabled. When OE# is high, all switches are open and the bus is isolated, allowing safe bus sharing in multi-device systems.
What are common applications for the SN74CBTLV3251D?
Common applications include data bus switching in embedded systems, memory bus expansion, CPU-to-peripheral routing, and multi-channel signal multiplexing in telecommunications and networking equipment. The bidirectional operation and low on-resistance make it suitable for high-speed digital data paths.
Is the SN74CBTLV3251D available in other packages?
Yes, the SN74CBTLV3251D is available in the 16-pin SOIC (Small Outline Integrated Circuit) package. Texas Instruments also offers similar CBTLV3251 devices in other package options such as TSSOP, providing flexibility for different PCB layout and space requirements.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.0130 | $2.01 |
| 13+ | $1.2078 | $15.70 |
| 46+ | $0.6462 | $29.73 |
| 156+ | $0.5514 | $86.02 |
| 337+ | $0.4825 | $162.60 |
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