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Alternatives to NXP PCA9517ADP

NXP PCA9517ADP and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.

PCA9517ADP compared against its qualified second sources
PCA9517ADPNXPTCA9517ADGKRTexas InstrumentsPI6ULS5V9617CUEXDiodes Incorporated+2more
FFF CompatibilityThe 8-VSSOP (DGK) package is physically and electrically identical in pinout and land pattern to the NXP 8-TSSOP (SOT505-1) package.Identical package dimensions (3mm x 3mm body size with 0.65mm pin pitch) and surface-mount package.Identical I2C bus buffer performance with standard/fast mode (400 kHz) support.Pin assignment and pin count are identical to the original PCA9517ADP.MSOP-8 (U-package) is functionally and dimensionally interchangeable with the SOT505-1 package.Parametric upgrade that easily covers and exceeds all the original electrical performance capabilities.
AI Summary

PCA9517ADP by NXP: Interface - Signal Buffers, Repeaters Bus buffer.

This is the direct drop-in replacement from Texas Instruments. It matches the exact electrical performance and physical package of the original PCA9517ADP without needing any PCB or software layout changes.

  • Direct drop-in replacement with identical package, pitch, and footprint
  • Same high noise margin contention level (VILC = 0.5V on port B) as the A-version
  • Active lifecycle with excellent distributor stock availability

An upgraded and active option from Diodes Incorporated that supports faster I2C speeds up to 1 MHz and provides a significantly lower supply current, making it highly efficient for low-power designs.

  • Upgraded Fast-Mode Plus (FM+) support with clock speeds up to 1 MHz
  • Extended operating supply ranges: VCCA down to 0.6V and VCCB down to 2.2V
  • Extremely low standby/active supply current (typical 50 µA vs 5 mA)
Lifecycle StatusObsoleteActiveUnknown
Market AvailabilityDiscontinuedIn stockUnknown
REACHUnknownREACHUnknown
RoHSRoHSRoHSUnknown
DescriptionInterface - Signal Buffers, Repeaters Bus bufferVoltage Level Translator Bidirectional 1 Circuit 2 Channel 8-VSSOPAn upgraded and active option from Diodes Incorporated that supports faster I2C speeds up to 1 MHz and provides a significantly lower supply
ManufacturerNXPTexas InstrumentsDiodes Incorporated
TypeInterface - Signal Buffers, RepeatersLogicComponent
DatasheetOpenOpenN/A
Lead TimeUnknown16 weeksUnknown
Country of Origin---
Export Control Class NumberEAR99EAR99EAR99
HTSUS Code8542390090--
Moisture Sensitivity Level---

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PCA9557PWRTexas InstrumentsIn stockActive3Alternatives availableSee Alternatives
PCA9546APW,112NXPIn stockObsolete4Alternatives availableSee Alternatives

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Frequently asked questions

Yes. The NXP PCA9517ADP is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.

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