SN74CBTLV3125PWIn StockTexas Instruments
SN74CBTLV3125PW is a 4-channel 1:1 bus switch IC with low-voltage 3.3V operation, enable-low control, and power-off protection. Features 50pF load capacitance support and unidirectional signal path for clean bus switching. From $0.16 in stock, worldwide shipping available.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- SN74CBTLV3125PW Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1578(MOQ 251)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 4-Channel 1:1 Bus Switch with independent enable-low control per channel for flexible signal routing
- Power-Off Protection prevents backflow current when VCC is disconnected, safeguarding downstream devices
- Low-Voltage 3.3V CBTLV family operation with 50pF load capacitance support for high-speed bus applications
- TSSOP-14 (R-PDSO-G14) small outline package minimizes PCB footprint in space-constrained designs
- RoHS-compliant (JESD-609 e4) halogen-free construction meets modern environmental standards
Applications
The SN74CBTLV3125PW is widely used in portable electronics and embedded systems for bus isolation and signal multiplexing between 3.3V logic devices. It excels in memory interface designs, microcontroller I/O expansion, and hot-plug applications where power-off protection prevents bus contention. Typical deployment includes laptop motherboards, industrial controllers, and communication equipment requiring clean, low-capacitance signal switching.
Specifications
| YTEOL | 0 |
| Additional Feature | BUS SWITCH |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | CBTLV/3B |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Number of Bits | 1 |
| Number of Functions | 4 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TUBE |
| 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) | 2.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trigger Type | POSITIVE EDGE |
| 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 | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74CBTLV3125PW:
Bus Driver, CBTLV/3B Series, 4-Func, 4-Bit, True Output, CMOS, PDSO14
Bus Driver, CBTLV/3B Series, 4-Func, 1-Bit, True Output, CMOS, PDSO14
Bus Driver, CBTLV/3B Series, 1-Func, 8-Bit, True Output, CMOS, PDSO20
Bus Driver, CBTLV/3B Series, 1-Func, 10-Bit, True Output, CMOS, PDSO24
Bus Driver, CBTLV/3B Series, 1-Func, 10-Bit, True Output, CMOS, PDSO24
Bus Driver, CBTLV/3B Series, 1-Func, 1-Bit, True Output, CMOS, PDSO5
Frequently Asked Questions
What is the operating voltage range of the SN74CBTLV3125PW?
The SN74CBTLV3125PW operates from a 2.3V to 3.6V supply voltage, making it ideal for 3.3V logic systems. The CBTLV family is specifically designed for low-voltage bus switching applications where minimal signal distortion and low on-resistance are critical.
How does the power-off protection feature work in the SN74CBTLV3125PW?
The power-off protection feature ensures that when VCC is at 0V or below the switching threshold, the bus switch outputs remain in a high-impedance state. This prevents backflow current from a live bus into an unpowered device, protecting both the switch and connected components in hot-swap or sequenced power-up scenarios.
What package type does the SN74CBTLV3125PW use and what are the pin count details?
The SN74CBTLV3125PW comes in a 14-pin TSSOP package (JESD-30 code R-PDSO-G14) with 0.65mm pitch. This small outline package is well-suited for high-density PCB layouts. The device has 4 switch channels, each controlled by an active-low enable input, giving designers independent control over each signal path.
What are typical applications for the SN74CBTLV3125PW bus switch?
This bus switch IC is commonly used in memory interface isolation, I2C/SPI bus multiplexing, microcontroller I/O expansion, and hot-plug card designs. Its low on-resistance and 50pF load capacitance handling make it suitable for high-speed data buses in laptops, industrial controllers, and networking equipment operating at 3.3V logic levels.
Is the SN74CBTLV3125PW RoHS compliant, and what are its environmental certifications?
Yes, the SN74CBTLV3125PW is RoHS compliant with JESD-609 code e4, indicating it is lead-free and halogen-free. Texas Instruments manufactures this device to meet modern environmental standards, making it suitable for consumer electronics, automotive, and industrial applications requiring compliance with EU RoHS and WEEE directives.
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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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