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Home Product PCA9517ADP NXP I2C Repeater, 5V-3.3V Level Shifter, Hot-Swap, Multi-Master Support Telecom/Consumer
PCA9517ADP Interfaces

PCA9517ADP NXP I2C Repeater, 5V-3.3V Level Shifter, Hot-Swap, Multi-Master Support Telecom/Consumer

PCA9517ADP I2C buffer
I2C hot swap buffer
NXP level translator IC
PCA9517ADP
NXP PCA9517ADP is an I2C buffer and hot swap solution providing bidirectional voltage level translation between mixed-voltage I2C buses. This I2C hot swap buffer features live insertion capability, bus capacitance isolation, and supports 0.9V to 5.5V level translation. Ideal for multi-master systems requiring robust I2C communication across voltage domains.
Categories:Electronic components
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Product Description

The PCA9517ADP from NXP is a bidirectional I2C buffer and hot-swap compatible level translator IC designed to interface between I2C buses operating at different voltage levels (1.8V to 5.5V). It features two-channel buffering, enabling seamless communication between multiple I2C modules without data corruption during live insertion or removal. This device supports standard and fast-mode I2C protocols, with voltage translation across its dual supply rails (1.8V-5.5V on either side). It operates in industrial temperature ranges (-40°C to +85°C), making it suitable for automation, telecom, and embedded systems. Key advantages include bus isolation, hot-swap protection, and reduced signal distortion, though its limited channel count may require cascading for multi-bus applications. No integrated battery or display components are included.
Parameter Specification
Device Type I2C buffer with hot swap and level translation
Manufacturer NXP Semiconductors
Supply Voltage Range 2.3 V to 5.5 V
Channels 1 bidirectional buffer
Maximum Data Rate 400 kHz (Fast-mode I2C)
Hot Swap Support Yes (I2C bus precharge)
Level Translation Range 1.8 V to 5.5 V (bidirectional)
Operating Temperature -40°C to +85°C
Package TSSOP-8 (3 mm x 4.4 mm)
ESD Protection ±6 kV HBM per JESD22-A114
Applications I2C bus buffering, hot-swap systems, voltage level shifting
question:Can I apply for low-value declaration for shipments?
answer:Low-value declaration depends on destination customs policies. We assist in assessing eligibility legally to optimize your shipping costs.
question:Why is shipping so expensive? Are there cheaper options?
answer:We offer diverse logistics solutions, including economy sea/air freight for bulk orders. Contact us to tailor cost-effective shipping plans.
question:Why choose your company for industrial automation products?
answer:With 20+ years as Asia's leader, 85% repeat clients rely on our quality, reliability, and commitment to long-term partnerships.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:Can I apply for low-value declaration for shipments?
answer:Low-value declaration depends on destination customs policies. We assist in assessing eligibility legally to optimize your shipping costs.
question:Why is shipping so expensive? Are there cheaper options?
answer:We offer diverse logistics solutions, including economy sea/air freight for bulk orders. Contact us to tailor cost-effective shipping plans.
question:Why choose your company for industrial automation products?
answer:With 20+ years as Asia's leader, 85% repeat clients rely on our quality, reliability, and commitment to long-term partnerships.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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