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Analog Devices Inc. LTC4331CUFD#PBF
- Part No.:
- LTC4331CUFD#PBF
- Manufacturer:
- Analog Devices Inc.
- Category:
- Specialized ICs
- Package:
- 20-WFQFN Exposed Pad
- Description:
- IC DIFFERENTIAL LINK 20QFN
- Quantity:
Unit Price:$6.85
Ext Price:$6.85
- Payment:
- Shipping:
Product Details
LTC4331CUFD#PBF - Rugged I2C Slave Device Extender
LTC4331CUFD#PBF from Analog Devices is a commercial-temperature I2C/SMBus slave-device extender in a 20-lead 4 mm by 5 mm QFN with exposed pad, supplied in tube packaging.
Specifications were checked against the manufacturer data sheet and current distributor listing.
Overview
A pair of LTC4331 devices carries I2C traffic, SMBALERT and a control signal over one differential twisted pair between local and remote electronics. The link supports selectable rates and distance up to 1200 m under the data-sheet application conditions.
Key Advantages
Extends a local I2C/SMBus slave interface across a protected differential link.
Integrates link status, remote interrupt and control signaling in a compact QFN.
Available in an established surface-mount or through-hole ordering format.
Electrical and environmental limits are defined by the official data sheet.
Feature Summary
Point-to-point I2C slave-device extender
I2C/SMBus logic side and differential A/B link
3 V to 5.5 V VCC; 1.62 V to 5.5 V VL; 0 C to 70 C for C grade
20-WFQFN Exposed Pad
Package & Footprint
This ordering code uses the 20-WFQFN Exposed Pad package.
Pin Functions
Confirm exact numbering and the latest land pattern before PCB release.
Key Specifications
| Function | I2C slave-device extender |
|---|---|
| VCC operating range | 3 V to 5.5 V |
| VL logic supply range | 1.62 V to 5.5 V |
| Exact C-grade ambient range | 0 C to 70 C |
| I2C clock | Up to 1 MHz, Fast-mode Plus |
| Maximum link distance | Up to 1200 m with suitable cable and selected link settings |
| A/B fault protection | +/-60 V |
| A/B common-mode range | +/-15 V |
| A/B ESD rating | +/-40 kV, data-sheet link-pin rating |
| SMBus compatibility | SMBus 3.0 compatible |
| Exposed pad | Ground, solder to PCB |
| Package | 20-lead QFN, 4 mm by 5 mm |
| Ordering medium | Tube |
Replacement Considerations
LTC4331CUFD#TRPBF is a related product in the library. Confirm electrical behavior, package, pinout, ordering media and configuration before substitution.
Similarity of family name or package does not establish drop-in compatibility.
Manufacturer Information
Analog Devices LTC4331 Rev. A gives the C-grade 0 to 70 C range, 20-QFN pin functions and exact #PBF tube order code.
Applications
Carries I2C control and alert signals between separated controller and sensor nodes.
Maintains an I2C peripheral interface across a long, noisy interconnect.
Quality & Authenticity
Match the complete ordering code, package marking and reel or lot label to authorized-channel records. Inspect moisture handling and solderability requirements before assembly.
FAQ
What is the main function?
Point-to-point I2C slave-device extender
What package is used?
20-WFQFN Exposed Pad
Can the related part be substituted directly?
No. Validate all electrical, mechanical and configuration differences first.
Is the package image ready?
No. The registered package JPG is currently missing.
Engineering Notice
Use the latest manufacturer documentation for schematic, PCB, thermal and production approval. Distributor attributes are useful for sourcing but do not replace the official data sheet.
LTC4331CUFD#PBF Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 20-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Differential Link
- Applications:
- Industrial, Lighting
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-QFN (4x5)
- Grade:
- -
- Qualification:
- -
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In Stock:255
| Qty. | Unit Price | Ext. Price |
| 1+ | $6.85 | $6.85 |
| 10+ | $5.32 | $53.20 |
| 73+ | $4.60 | $335.80 |
| 146+ | $4.43 | $646.78 |
| 292+ | $4.29 | $1252.68 |
| 511+ | $4.19 | $2141.09 |
| 1022+ | $4.10 | $4190.20 |
