SN74CB3T3125PWIn StockTexas Instruments
SN74CB3T3125PW is a quadruple FET bus switch with 2.5V/3.3V low-voltage operation and 5V-tolerant level shifting. Features four independent channels with active-low enable control, 50pF load capacitance, and unidirectional signal routing. From $1.07, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- SN74CB3T3125PW Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.0700(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
- Quadruple FET bus switch with four independent channels for flexible signal routing
- 2.5V/3.3V low-voltage operation with 5V-tolerant level shifting capability
- Active-low enable control for simple and reliable bus switching logic
- 50pF load capacitance support in compact TSSOP-14 small outline package
- Unidirectional signal flow with CB3T/3VT family compatibility
Applications
The SN74CB3T3125PW is widely used in mixed-voltage digital systems where 3.3V logic must interface with 5V legacy buses, such as microcontroller GPIO expansion and memory bus switching. It is commonly deployed in industrial control boards, embedded systems, and communication equipment requiring reliable bus isolation. Its compact TSSOP-14 package and wide supply voltage range make it ideal for space-constrained PCB designs in consumer electronics and automotive applications.
Specifications
| YTEOL | 0 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | CB3T/3VT |
| 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) | 0.04mA |
| 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 |
| ## SN74CB3T3125PW Alternates Showing results | Image |
| 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 SN74CB3T3125PW:
suggested
suggested
Frequently Asked Questions
What voltage levels does the SN74CB3T3125PW support?
The SN74CB3T3125PW supports 2.5V and 3.3V supply voltages for its low-voltage bus switch operation, while remaining 5V-tolerant on its I/O pins. This makes it suitable for mixed-voltage systems where 3.3V logic must interface with 5V buses without additional level-shifting components.
How many channels does the SN74CB3T3125PW have and how are they controlled?
The SN74CB3T3125PW features four independent FET bus switch channels, each with an active-low enable (OE) control input. When the enable pin is pulled low, the corresponding channel conducts, allowing unidirectional signal passage with minimal propagation delay and low on-state resistance.
What package type is the SN74CB3T3125PW and what is its load capacitance rating?
The SN74CB3T3125PW is available in a 14-pin TSSOP (PDSO-G14) small outline package, which is ideal for compact PCB layouts. It is rated for a load capacitance of up to 50pF, ensuring stable signal integrity on typical digital bus lines in embedded and industrial applications.
What are common applications for the SN74CB3T3125PW?
Common applications include bus switching in microcontroller systems, memory interface isolation, GPIO expansion for FPGAs and CPLDs, and signal routing in industrial control equipment. Its 5V-tolerant inputs make it especially useful when bridging between 3.3V microcontrollers and older 5V peripheral devices.
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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+ | $2.1200 | $2.12 |
| 10+ | $1.5680 | $15.68 |
| 90+ | $1.2870 | $115.83 |
| 500+ | $1.2100 | $605.00 |
| 1000+ | $1.1400 | $1140.00 |
| 10000+ | $1.0700 | $10700.00 |
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