TCA4311D Texas Instruments Integrated Circuit (Other) In Stock
The TCA4311D is a dual I2C bus buffer IC from Texas Instruments in an 8-pin SOIC package, operating from 2.7V to 5.5V supply voltage with 3mA drive capability. It supports hot-swap bus connection and capacitance isolation for extending I2C bus reach in multi-master systems. Available from authorized distributors with in-stock inventory and worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- TCA4311D Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7839(MOQ 1)
- 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 TCA4311D?
- Dual I2C bus buffer with 2.7V to 5.5V wide supply range enabling mixed-voltage I2C system integration
- 3mA drive strength with capacitance buffering to extend I2C bus length beyond standard 400pF limit
- Hot-swap capable 8-pin SOIC (R-PDSO-G8) with RoHS-compliant plastic packaging for easy PCB integration
What is TCA4311D used for?
The TCA4311D is designed for I2C bus extension and isolation in systems where multiple devices share a common bus with accumulated capacitance exceeding standard limits. It is commonly used in server management controllers, industrial automation systems, and embedded computing platforms to buffer and isolate I2C segments, enabling reliable communication over longer traces. Its wide 2.7V to 5.5V supply range makes it compatible with both 3.3V and 5V I2C bus environments.
What are the specifications of TCA4311D?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Interface IC Type | BUS BUFFERS |
| JESD-30 Code | R-PDSO-G8 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 2.7V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | BICMOS |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| Country of Origin | Malaysia |
Where can I find the TCA4311D datasheet?
TCA4311D Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TCA4311D?
Compatible alternatives and drop-in replacements for TCA4311D:
Frequently Asked Questions
What is the supply voltage range of the TCA4311D?
The TCA4311D operates from 2.7V to 5.5V supply voltage, making it compatible with both 3.3V and 5V I2C bus systems. This wide voltage range allows it to interface between different voltage domains in mixed-supply embedded systems.
What is the drive current capability of the TCA4311D?
The TCA4311D provides 3mA bus drive current per channel. This current capability allows it to buffer I2C buses with high capacitive loads, extending the bus beyond the standard 400pF capacitance limit defined by the I2C specification for reliable communication.
What package is the TCA4311D available in?
The TCA4311D is available in an 8-pin Small Outline SOIC package (JESD-30 code R-PDSO-G8) with a plastic/epoxy body. It is RoHS-compliant (Pb-free) and suitable for standard surface-mount PCB assembly in commercial and industrial applications.
Can the TCA4311D be used for hot-swap applications?
Yes, the TCA4311D supports hot-swap bus connection, allowing boards to be inserted and removed from a live I2C bus without disturbing communication on other bus segments. This feature is especially valuable in server and telecom systems requiring hot-pluggable module architectures.
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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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.7839 | $0.78 |
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