74CBT1G125DBVRG4 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
The 74CBT1G125DBVRG4 is a single-bit bus switch from Texas Instruments with active-low output enable, packaged in a compact 5-pin SOT-23 form factor for space-constrained PCB designs. It provides transparent, near-zero propagation delay signal switching between A and B ports for 3.3V and 5V bus interface applications. Available in stock with worldwide shipping for high-volume consumer and industrial designs.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- 74CBT1G125DBVRG4 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
Key Features
- Single-bit (1 x 1:1) bus switch with active-low output enable for simple signal isolation
- Ultra-compact 5-pin SOT-23 package enabling minimal board footprint in dense PCB layouts
- Near-zero propagation delay with 50 pF load capacitance for transparent bus switching
- CBT/FST logic family compatibility offering low on-resistance for minimal signal distortion
- Pb-free RoHS-compliant construction (JESD-609 e4) for green product certification
Applications
The 74CBT1G125DBVRG4 is used in signal routing, bus isolation, and live switching applications in mobile devices, consumer electronics, and embedded systems. Its ultra-compact SOT-23 package and single-bit architecture make it ideal for I2C bus isolation, GPIO protection, and signal multiplexing in space-critical designs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | CBT/FST/QS/5C/B |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Number of Bits | 1 |
| Number of Functions | 1 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.001mA |
| Prop. Delay@Nom-Sup | 0.35ns |
| Propagation Delay (tpd) | 0.35ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for 74CBT1G125DBVRG4:
Bus Driver, CBT/FST/QS/5C/B Series, 1-Func, 1-Bit, True Output, CMOS, PDSO5
Bus Driver, CBT/FST/QS/5C/B Series, 1-Func, 1-Bit, True Output, CMOS, PDSO5
Bus Driver, CBT/FST/QS/5C/B Series, 1-Func, 1-Bit, True Output, CMOS, PDSO5
Bus Driver, CBT/FST/QS/5C/B Series, 1-Func, 1-Bit, True Output, CMOS, PDSO5
Bus Driver, CBT/FST/QS/5C/B Series, 1-Func, 1-Bit, True Output, CMOS, PDSO5
Frequently Asked Questions
What is the maximum operating voltage for the 74CBT1G125DBVRG4?
The 74CBT1G125DBVRG4 operates with a supply voltage (VCC) range of 2.3V to 3.6V, making it compatible with 3.3V bus systems. It also supports 5V-tolerant inputs and outputs, allowing it to interface between 3.3V and 5V logic systems without additional level-shifting components.
What is the propagation delay of the 74CBT1G125DBVRG4 bus switch?
The 74CBT1G125DBVRG4 provides near-zero propagation delay, typically around 0.1ns, which is characteristic of CBT-series bus switches. This ultra-low delay is achieved because the device operates as a pass-gate switch rather than a buffered logic gate, making it ideal for high-speed bus switching applications.
How is the output enable (OE) pin used on the 74CBT1G125DBVRG4?
The 74CBT1G125DBVRG4 features an active-low output enable (OE#) pin. When OE# is driven LOW, the bus switch is enabled and the A and B ports are connected. When OE# is driven HIGH, the switch is disabled and both ports are placed in a high-impedance state, effectively isolating the connected buses.
What package does the 74CBT1G125DBVRG4 come in and what are its dimensions?
The 74CBT1G125DBVRG4 is packaged in a 5-pin SOT-23 (DBV) package with tape and reel (R4) packaging for automated assembly. The SOT-23 package is extremely compact, measuring approximately 2.9mm x 1.6mm, making it suitable for space-constrained PCB designs in portable and handheld devices.
Is the 74CBT1G125DBVRG4 RoHS compliant and lead-free?
Yes, the 74CBT1G125DBVRG4 is RoHS compliant and lead-free, as indicated by the 'G4' suffix in the part number and the JESD-609 Code e4. Texas Instruments manufactures this device using a lead-free soldering process, making it suitable for applications requiring compliance with environmental regulations such as 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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