SN74LVC2G125DCU Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
SN74LVC2G125DCU is a dual single-bit tri-state bus buffer operating from 1.65 V to 5.5 V, achieving 4.3 ns propagation delay at 3.3 V with 32 mA output drive, featuring independent active-low output enables in an ultra-compact 8-pin VSSOP package for signal isolation and bus buffering.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- SN74LVC2G125DCU 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 SN74LVC2G125DCU?
- Dual independent single-bit tri-state buffers
- 4.3 ns propagation delay at 3.3 V supply
- 32 mA output drive current for bus driving
- 1.65 V to 5.5 V wide supply voltage range
- Independent active-low enable per buffer channel
- LVC family for low-voltage CMOS signal compatibility
- 8-pin VSSOP package for space-critical PCB layouts
What is SN74LVC2G125DCU used for?
SN74LVC2G125DCU is used in I/O expansion, bus isolation, and signal buffering for microcontroller and SoC designs operating from 1.8 V to 3.3 V. The device is well suited for bidirectional data bus management in embedded systems where two independent tri-state outputs allow separate enable control for transmit and receive signal paths. It also serves in portable consumer electronics, wearables, and IoT sensor nodes where the 8-pin VSSOP footprint and 1.65 V minimum supply meet tight space and power constraints.
What are the specifications of SN74LVC2G125DCU?
| YTEOL | 0 |
| Family | LVC/LCX/Z |
| JESD-30 Code | R-PDSO-G8 |
| Logic IC Type | BUS DRIVER |
| Number of Bits | 1 |
| Number of Functions | 2 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH |
| Propagation Delay (tpd) | 9.1ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.65V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Where can I find the SN74LVC2G125DCU datasheet?
SN74LVC2G125DCU Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74LVC2G125DCU?
Compatible alternatives and drop-in replacements for SN74LVC2G125DCU:
Frequently Asked Questions
How does SN74LVC2G125DCU achieve bus isolation between two signal paths?
Each of the two buffer channels has an independent active-low output enable pin. When one enable is deasserted, the corresponding output enters high-impedance tri-state mode, disconnecting it from the bus. With 4.3 ns enable-to-output propagation at 3.3 V, the device supports fast bus arbitration in multi-master designs.
Can SN74LVC2G125DCU drive a 5 V bus from a 3.3 V microcontroller output?
SN74LVC2G125DCU inputs accept signals from 1.65 V to 5.5 V, making them compatible with 3.3 V logic, but the output drive voltage is determined by its own supply (V_CC). At 3.3 V supply, outputs swing to within millivolts of supply rails, so for 5 V bus driving the device supply must also be 5 V, while the input signal from the 3.3 V MCU is accepted without level-shifting.
For a wearable IoT design running on a 1.8 V coin cell, does SN74LVC2G125DCU operate correctly?
Yes, SN74LVC2G125DCU supports a minimum supply of 1.65 V, covering standard 1.8 V low-power SoC rails. At 1.8 V supply the propagation delay increases to roughly 8 ns but remains well within most sensor interface timing budgets, and quiescent current stays below 10 µA for battery-friendly operation.
How does SN74LVC2G125DCU compare to SN74LVC1G125 for a two-channel buffer need?
SN74LVC1G125 is a single-channel tri-state buffer in a 5-pin SOT-23, requiring two devices and two PCB footprints for a 2-channel design. SN74LVC2G125DCU integrates both channels with independent enables into one 8-pin VSSOP package, reducing BOM count and PCB area by roughly 40% for designs needing 2 isolated buffer paths.
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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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