MCZ33199EF

Specialized Overview

The MCZ33199EF is an automotive serial interface circuit designed for diagnostic applications, serving as the bridge between a microcontroller and the ISO 9141 K and L lines. It features a bidirectional K-line driver with short-circuit protection and an L-line receiver for wake-up sequences. The device supports transmission speeds up to 200 kBaud via a dynamic current source on the I1 pin. Operating temperatures range from -40°C to +125°C. Electrical characteristics include a VCC supply of 4.5V to 5.5V and a VS supply of 4.5V to 20V. The component is housed in a 14-pin SOIC package.

Specialized Feature Summary

• Complies with ISO 9141 Diagnosis System specifications
• Includes internal voltage reference generator for line comparator thresholds
• Features over-temperature shutdown with hysteresis and short-circuit protection

Specialized Applications

• Automotive diagnostic systems connecting microcontrollers to ISO ports
• Vehicle electronic control unit (ECU) interfaces
• End-of-line programming and manufacturer system checking

Specialized Procurement Notes

Verify the specific ordering suffix EF indicates lead-free packaging compliance. Confirm that the component meets the required automotive temperature range specifications for your application environment. Ensure compatibility with the host microcontroller's logic levels before integration into the design.

Specialized Selection Notes

Select this component when designing interfaces requiring ISO 9141 protocol support. Consider the 14-pin SOIC package constraints for board layout. Evaluate the need for the high baud rate feature by determining if parasitic capacitance on the K-line requires the dynamic current source functionality provided by the I1 pin connection.

Specialized Part Context

This part belongs to the MC33199 series of analog front-end devices specialized for automotive diagnostics. It functions specifically as a physical layer driver and receiver for serial communication buses used in vehicle maintenance and programming scenarios.

Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.