KSZ9567STXI Equivalent & Substitute Parts

Part Overview

The KSZ9567STXI is a 7-port Ethernet switch IC manufactured by Microchip Technology, designed for 10/100/1000 Base-T PHY applications with I2C and SPI interface support. This interface component operates across supply voltages of 1.8V, 2.5V, and 3.3V, with an operating temperature range of -40°C to 85°C. The device is packaged in a 128-TQFP Exposed Pad configuration (14x14mm) and maintains Active product status with ROHS3 compliance. Equivalent and substitute parts are identified based on matching electrical specifications, package compatibility, and interface protocols to ensure seamless integration in Ethernet switching applications.

Key Parameters

Parameter	Specification
Manufacturer	Microchip Technology
Category	Interface
Function	Ethernet Switch
Port Configuration	7-Port
Protocol	Ethernet
Standards	10/100/1000 Base-T PHY
Interface	I2C, SPI
Voltage Supply	1.8V, 2.5V, 3.3V
Operating Temperature	-40°C to 85°C
Package Type	128-TQFP Exposed Pad (14x14mm)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	3 (168 Hours)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the KSZ9567STXI are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Electrical Equivalence Criteria:

Identical protocol support (Ethernet)
Matching interface standards (10/100/1000 Base-T PHY)
Identical communication interfaces (I2C, SPI)
Matching supply voltage range (1.8V, 2.5V, 3.3V)
Identical operating temperature range (-40°C to 85°C)

Mechanical Compatibility Criteria:

Identical package type (128-TQFP Exposed Pad)
Identical package dimensions (14x14mm)
Matching moisture sensitivity level (MSL 3, 168 Hours)

Compliance Criteria:

ROHS3 compliance maintained
REACH unaffected status
Active product status

All four substitute parts (KSZ9567RTXI, KSZ9477STXI, KSZ9897RTXI, KSZ9897STXI) meet these criteria and are direct parametric equivalents suitable for component selection in applications requiring KSZ9567STXI functionality.

Parameter Comparison

Part Number	Manufacturer	Function	Interface	Standards	Voltage Supply	Operating Temperature	Package	RoHS Status	Inventory (Pcs)	Product Status
KSZ9567STXI	Microchip Technology	Ethernet Switch 7-Port	I2C, SPI	10/100/1000 Base-T PHY	1.8V, 2.5V, 3.3V	-40°C to 85°C	128-TQFP-EP (14x14)	ROHS3 Compliant	1301	Active
KSZ9567RTXI	Microchip Technology	Ethernet Switch 7-Port	I2C, SPI	10/100/1000 Base-T PHY	1.8V, 2.5V, 3.3V	-40°C to 85°C	128-TQFP-EP (14x14)	ROHS3 Compliant	1735	Active
KSZ9477STXI	Microchip Technology	Ethernet Switch 7-Port	I2C, SPI	10/100/1000 Base-T PHY	1.8V, 2.5V, 3.3V	-40°C to 85°C	128-TQFP-EP (14x14)	ROHS3 Compliant	1588	Active
KSZ9897RTXI	Microchip Technology	Ethernet Switch 7-Port	I2C, SPI	10/100/1000 Base-T PHY	1.8V, 2.5V, 3.3V	-40°C to 85°C	128-TQFP-EP (14x14)	ROHS3 Compliant	2701	Active
KSZ9897STXI	Microchip Technology	Ethernet Switch 7-Port	I2C, SPI	10/100/1000 Base-T PHY	1.8V, 2.5V, 3.3V	-40°C to 85°C	128-TQFP-EP (14x14)	ROHS3 Compliant	1410	Active

Engineering Selection Recommendations

All substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with current manufacturing standards. The KSZ9567RTXI offers the highest inventory availability at 2701 units, providing supply chain flexibility. KSZ9567RTXI and KSZ9567STXI share the same base product number (KSZ9567), differing only in packaging designation (R vs. S suffix), making them direct variants within the same product line. KSZ9477STXI and KSZ9897 series parts represent alternative base product numbers within the Microchip Ethernet switch portfolio, all meeting identical electrical and mechanical specifications for this application class.

Selection should prioritize inventory availability and internal supply chain requirements, as all parts are functionally equivalent for 10/100/1000 Base-T PHY Ethernet switching applications requiring I2C and SPI interface support.

Frequently Asked Questions (FAQ)

Q: What determines if a part is a true substitute for the KSZ9567STXI?

A: A part qualifies as a substitute when it maintains identical electrical specifications (10/100/1000 Base-T PHY protocol, I2C/SPI interfaces, 1.8V/2.5V/3.3V supply voltage, -40°C to 85°C operating range), identical mechanical packaging (128-TQFP-EP 14x14mm), and matching compliance certifications (ROHS3, MSL 3).

Q: Can I use KSZ9567RTXI in place of KSZ9567STXI?

A: Yes. Both parts share the base product number KSZ9567 and are parametrically equivalent. The R and S suffixes indicate packaging designation variants but do not affect electrical functionality or interface compatibility.

Q: Are KSZ9477STXI and KSZ9897 series parts interchangeable with KSZ9567STXI?

A: Yes, for applications requiring 7-port Ethernet switching with 10/100/1000 Base-T PHY support, I2C/SPI interfaces, and identical supply voltage and temperature specifications. These represent alternative base product numbers within the Microchip portfolio that meet all specified electrical and mechanical requirements.

Q: What is the significance of the packaging designation (S vs. R suffix)?

A: The S and R suffixes indicate different packaging formats (Tray packaging in both cases per provided specifications). Both maintain identical electrical performance and 128-TQFP-EP physical dimensions.

Q: Do all substitute parts have the same moisture sensitivity level?

A: Yes. All parts listed maintain MSL 3 (168 Hours) moisture sensitivity level, ensuring identical handling and storage requirements.

Q: Which substitute part has the best inventory availability?

A: KSZ9897RTXI currently has the highest inventory at 2701 units, followed by KSZ9567RTXI at 1735 units.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message