SIM card interface design

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According to the interface function

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SIM card interface design

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SIM card interface design scheme

The SIM card interface, as the core connection standard between mobile devices and the user identity module (SIM card), is designed with a focus on high reliability, miniaturization and secure communication. The physical layer adopts the 6/8 contact layout of ISO 7816 standard, compatible with micro-forms such as nano-SIM/eSIM. Gold-plated contacts and metal shielding layers ensure durability. The electrical layer follows the UART serial communication protocol, supports a maximum rate of 9600bps and SWP near-field communication, and has an internal voltage stabilizing circuit to ensure power supply stability. In terms of security, ESD protection and AES/RSA encryption algorithms prevent data leakage, while physical contact encryption design and multi-mode compatibility (2G/3G/4G/5G) meet global network requirements.

SIM card EMC interface design scheme

CVB1005E601T

ESD5D003TA