LTC4312CMS#PBF Analog Devices Integrated Circuit (Small Outline Packages) In Stock
Analog Devices LTC4312CMS#PBF is a pin-selectable 2-channel I2C bus multiplexer with integrated bus buffers in a 16-pin MSOP package. It isolates capacitance on each I2C channel and supports bus speeds up to 400 kHz Fast Mode and 1 MHz Fast-Mode Plus. RoHS-compliant and available from stock with worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- LTC4312CMS#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.7100(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC4312CMS#PBF?
- 2-channel pin-selectable I2C multiplexer isolates bus capacitance, enabling up to 400 kHz Fast Mode and 1 MHz Fast-Mode Plus across each channel independently
- Integrated bidirectional bus buffers allow each I2C segment to drive heavily loaded buses with up to 400 pF capacitance
- Pin-selectable channel control eliminates the need for a separate I2C command to switch channels, reducing firmware complexity
- 16-pin MSOP (R-PDSO-G16) package minimizes PCB area while supporting 3.3 V and 5 V mixed-voltage I2C systems
What is LTC4312CMS#PBF used for?
LTC4312CMS#PBF is used in multi-sensor boards, FPGA development cards, and server management controllers where multiple I2C slave devices share the same address or create excessive bus capacitance exceeding the 400 pF limit. The integrated buffers allow each downstream channel to support up to 400 pF of total bus capacitance, extending reach to remote sensors on cables up to several meters. It is also suited for hot-swap card designs where I2C isolation prevents bus corruption during card insertion.
What are the specifications of LTC4312CMS#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1669 |
| YTEOL | 10 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | eFUSE |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e3 |
| Number of Channels | 2 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.9V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| 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 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Where can I find the LTC4312CMS#PBF datasheet?
LTC4312CMS#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC4312CMS#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What I2C bus speeds does LTC4312CMS#PBF support across its 2 channels?
LTC4312CMS#PBF supports Standard Mode at 100 kHz, Fast Mode at 400 kHz, and Fast-Mode Plus at 1 MHz on each of its 2 isolated I2C channels. The integrated bus buffers allow full-speed operation even when each channel drives up to 400 pF of bus capacitance.
How does the pin-selectable channel control of LTC4312CMS#PBF reduce firmware overhead?
Unlike I2C-addressed multiplexers that require sending a channel-select command over the bus, LTC4312CMS#PBF switches its 2 channels via logic input pins. This allows a GPIO toggle to select the active channel in under 1 µs, avoiding the time and code overhead of an I2C transaction on every sensor switch.
Which supply voltage range does LTC4312CMS#PBF support, and is it compatible with 3.3 V and 5 V systems?
LTC4312CMS#PBF operates from a 2.7 V to 5.5 V supply, making it directly compatible with both 3.3 V and 5 V I2C systems. Its level-shifting capability allows upstream and downstream buses to operate at different voltages within this range, simplifying mixed-voltage board designs.
When should LTC4312CMS#PBF be chosen over a passive I2C switch in a multi-sensor system?
A passive I2C switch simply routes SCL and SDA without buffering, so bus capacitance accumulates across all segments. LTC4312CMS#PBF is preferred when any single I2C channel carries more than 400 pF of total capacitance or when sensors with conflicting 7-bit addresses need to share a common controller bus with 2 independent isolated channels.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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|---|---|---|
| 1+ | $7.2300 | $7.23 |
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