SN74ALVC125DRE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74ALVC125DRE4 is a quad non-inverting 3-state bus buffer and line driver from Texas Instruments in the ALVC/VCX low-voltage CMOS logic family, packaged in a 14-pin SOIC with 24mA output drive. Each channel is independently enabled by an active-low output enable input for flexible bus sharing and signal isolation. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- SN74ALVC125DRE4 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 SN74ALVC125DRE4?
- Quad 3-state non-inverting buffer with independent active-low output enables per channel enables precise bus control and signal multiplexing in multi-master systems
- ALVC/VCX low-voltage CMOS family supports 1.65V to 3.6V operation with 5V-tolerant inputs for seamless mixed-voltage system interfacing
- 24mA output drive current (Iol max) and 50pF load capacitance rating support fast signal transitions on capacitively loaded bus lines
What is SN74ALVC125DRE4 used for?
The SN74ALVC125DRE4 is widely used as a bus buffer and level-shifting interface in microcontroller, FPGA, and memory systems where multiple devices share a common data or address bus. Its 3-state outputs allow the device to disconnect from the bus when not selected, preventing bus conflicts in multi-master designs such as I2C expanders, SPI multiplexers, and processor memory interfaces. The ALVC family's low-voltage CMOS operation with 5V-tolerant inputs makes it ideal for bridging between 3.3V logic controllers and legacy 5V peripherals.
What are the specifications of SN74ALVC125DRE4?
| YTEOL | 0 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | ALVC/VCX/A |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.024A |
| 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 | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.01mA |
| Prop. Delay@Nom-Sup | 2.8ns |
| Propagation Delay (tpd) | 5.3ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 1.65V |
| Supply Voltage-Nom (Vsup) | 1.8V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| 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 |
| HTS Code | 8542.39.00.60 |
Where can I find the SN74ALVC125DRE4 datasheet?
SN74ALVC125DRE4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74ALVC125DRE4?
Compatible alternatives and drop-in replacements for SN74ALVC125DRE4:
Bus Driver, ALVC/VCX/A Series, 4-Func, 1-Bit, True Output, CMOS, PDSO14
Bus Driver, ALVC/VCX/A Series, 4-Func, 1-Bit, True Output, CMOS, PDSO14
Bus Driver, ALVC/VCX/A Series, 4-Func, 1-Bit, True Output, CMOS, PDSO14
Bus Driver, ALVC/VCX/A Series, 4-Func, 1-Bit, True Output, CMOS, PDSO14
Frequently Asked Questions
What is the SN74ALVC125DRE4 and how does its 3-state output work?
The SN74ALVC125DRE4 is a quad non-inverting buffer with 3-state (tri-state) outputs, meaning each output can be actively driven high, actively driven low, or placed in a high-impedance state. When the active-low output enable (OE) pin is high, the corresponding buffer output is disconnected from the bus, allowing other devices to drive the shared line without conflict.
What voltage levels does the SN74ALVC125DRE4 support?
The SN74ALVC125DRE4 belongs to the ALVC/VCX logic family, which operates from a supply voltage (VCC) of 1.65V to 3.6V. Its inputs are 5V-tolerant, allowing it to accept signals from 5V logic devices while operating the output stage at 3.3V or lower, making it an effective level translator in mixed-voltage systems.
What is the output drive strength of the SN74ALVC125DRE4?
The SN74ALVC125DRE4 provides a maximum low-level output current (Iol) of 24mA, which is sufficient to drive most standard logic loads and capacitive bus lines. This drive strength, combined with a 50pF rated load capacitance, ensures clean signal edges even on moderately loaded PCB traces and inter-board connectors.
What package does the SN74ALVC125DRE4 use?
The SN74ALVC125DRE4 is housed in a 14-pin SOIC (Small Outline Integrated Circuit) surface-mount package, as indicated by JESD-30 code R-PDSO-G14 and the 'DR' package suffix. The 'E4' suffix in the part number denotes RoHS-compliant and lead-free material compliance per Texas Instruments' green product requirements.
Is the SN74ALVC125DRE4 compatible with 5V logic?
Yes, the SN74ALVC125DRE4 features 5V-tolerant inputs, allowing it to directly accept input signals from 5V TTL or CMOS logic devices without requiring level-shifting circuitry on the input side. This makes it a convenient interface component between legacy 5V systems and modern 3.3V or lower-voltage microcontrollers and FPGAs.
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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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