74LVC1G126DBVT Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
Texas Instruments 74LVC1G126DBVT is a single 3-state buffer and line driver operating from 1.65 V to 5.5 V with an active-high output enable. It provides 32 mA output drive capability in a 5-pin SOT-23 package for mixed-voltage bus interfaces. In-stock worldwide with fast shipping for immediate procurement.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- 74LVC1G126DBVT Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of 74LVC1G126DBVT?
- Wide supply voltage range from 1.65 V to 5.5 V enabling direct interfacing between 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains without level-shifting ICs
- 3-state output with 32 mA drive strength for driving bus lines in multi-master data bus architectures
- Ultra-compact 5-pin SOT-23 footprint (1.6 mm x 2.9 mm) ideal for space-constrained portable and wearable designs
What is 74LVC1G126DBVT used for?
The 74LVC1G126DBVT is used for bus isolation and signal buffering in mixed-voltage digital systems where logic levels must be selectively driven or tristated. It is suited to I2C and SPI bus expansion circuits in microcontroller boards, where 3-state capability prevents bus contention during multi-device arbitration. Its 1.65 V to 5.5 V compatibility also makes it a practical choice for interfacing legacy 5 V peripherals to modern 1.8 V or 3.3 V SoCs.
What are the specifications of 74LVC1G126DBVT?
| YTEOL | EYTEOL |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Country of Origin | Country of Origin |
Where can I find the 74LVC1G126DBVT datasheet?
74LVC1G126DBVT Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for 74LVC1G126DBVT?
Compatible alternatives and drop-in replacements for 74LVC1G126DBVT:
Bus Driver, LVC/LCX/Z Series, 1-Func, 1-Bit, True Output, CMOS, PDSO5
Bus Driver, LVC/LCX/Z Series, 1-Func, 1-Bit, True Output, CMOS, PDSO5
Frequently Asked Questions
What output drive current does the 74LVC1G126DBVT deliver and across which supply voltage range?
The 74LVC1G126DBVT sources and sinks up to 32 mA of output current while operating from any supply between 1.65 V and 5.5 V. This current drive is sufficient to directly drive standard CMOS bus lines at 3.3 V or 5 V without additional buffering, and the wide voltage range eliminates level-shifter ICs in mixed-voltage designs.
How does the 3-state output of the 74LVC1G126DBVT prevent bus contention in a multi-master SPI design?
When the active-high output enable pin is pulled low, the 74LVC1G126DBVT output enters a high-impedance state within 5.5 ns, effectively disconnecting the driven node from the bus. In a multi-master SPI topology with 4 devices sharing the MOSI line, each device uses a dedicated 74LVC1G126DBVT buffer controlled by a GPIO, ensuring only 1 driver is active at a time and preventing crowbar currents.
For a compact wearable sensor module on a 1.8 V rail, how does the SOT-23 package of the 74LVC1G126DBVT compare to SOIC alternatives?
The 5-pin SOT-23 package measures only 1.6 mm x 2.9 mm with a 0.95 mm pin pitch, occupying less than 5 mm2 of PCB area compared to the 30 mm2 footprint of a standard 8-pin SOIC package. For a 1.8 V wearable with a 20 mm x 20 mm PCB, this 6x area saving allows placement of additional passive components or sensors in the recovered board space.
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Why Buy from FindMyChip
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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