XL33290 – ISO K-Line Serial Link Interface – Xinluda

About this part

The XL33290 from Xinluda is an ISO K-Line serial link interface IC built for bi-directional, half-duplex communication on the automotive diagnostic K line. It bridges a vehicle’s on-board microcontroller and off-board diagnostic equipment in accordance with the Diagnostic Systems ISO9141 specification, making it a popular drop-in functional equivalent to the legacy NXP/Freescale MC33290 in an economical SOP-8 surface-mount package.

The device translates between 5.0 V microcontroller logic levels and battery-level logic on the single-wire K line, and includes a chip-enable (CEN) pin that places the part into a low-power sleep state when held low. The K-line bus driver output is protected against bus shorts and over-temperature conditions, and the part is parametrically specified over a wide 8.0 V to 18 V battery (VBB) supply range and an automotive ambient temperature range of -40°C to +125°C.

Key Features

• ISO K-Line serial link interface; meets Diagnostic Systems ISO9141 specification
• Bi-directional, half-duplex single-wire K-line communication
• VBB battery supply range: 8.0 V to 18 V
• Interfaces 5.0 V microcontroller logic to battery-level logic (and back)
• K-line bus driver output protected against shorts to ground and over-temperature (thermal shutdown with hysteresis)
• CEN chip-enable pin with low-power sleep mode
• Operating ambient temperature range: -40°C to +125°C
• 8-pin SOP-8 surface-mount package
• Functional equivalent to NXP/Freescale MC33290

Applications

• Automotive ISO9141 / K-line diagnostic interfaces
• OBD-II diagnostic tools and scan tools
• ECU on-board diagnostic communication
• Vehicle test and service equipment
• K-line gateway and adapter modules

Why Source XL33290 from Pacific Component Xchange

The XL33290 is a specialized, hard-to-find interface IC with little to no authorized-distributor stock. Pacific Component Xchange is an independent distributor focused on locating obsolete and hard-to-source interface and power-management ICs like the XL33290. We support legacy and end-of-life designs, perform authenticity and quality verification on incoming product, and ship globally to OEM, repair, and aftermarket customers.

Pricing on this part is quote-based. Request a quote (RFQ) with your target quantity and delivery requirements and our sourcing team will confirm current availability, lead time, and pricing for the XL33290.