J111,126

Overview

The J111,126 is a secure microcontroller unit manufactured by NXP USA Inc., belonging to the J11 series. It integrates an 8-bit CPU core with hardware security features designed for smart card and secure identification applications. The device includes non-volatile memory for program storage and data retention, along with cryptographic accelerators for standard algorithms. It supports standard communication interfaces required for contact-based smart card protocols. The component operates within specified voltage and temperature ranges suitable for embedded security environments.

Feature Summary

• Integrated hardware security engine supporting cryptographic operations
• Non-volatile memory architecture for secure data storage
• Compliance with international smart card standards

Applications

• Secure identity documents
• Financial smart cards
• Access control systems

Procurement Notes

Verify the exact ordering part number against the manufacturer's current catalog to ensure availability, as specific suffixes may indicate package or tape-and-reel variations. Confirm RoHS compliance status through official documentation before integration. Request the latest datasheet and errata sheet to validate electrical characteristics and known silicon revisions for the specific batch intended for procurement.

Selection Notes

Select this component when designing contact-based smart card solutions requiring certified security features. Ensure the system design accommodates the specific voltage levels and clock frequencies supported by the J11 series. Verify that the application logic fits within the available program memory and RAM constraints defined in the technical specifications.

Part Context

This part belongs to NXP's J11 family of secure microcontrollers, which are optimized for high-security applications. The series is widely used in industries demanding robust protection against physical and logical attacks. The J111 variant represents a specific configuration within this family, tailored for standard smart card form factors and protocol requirements.

Replacement Considerations

Check for direct replacements within the J11 series with different memory sizes or feature sets. Consult NXP documentation for any end-of-life notices or recommended new products (RNPs). Cross-compatibility with other secure MCU families requires careful verification of pinouts, voltage domains, and instruction set compatibility.