AT88SC3216C-PU

Specialized ICS Overview

The AT88SC3216C-PU is a secure memory device from the CryptoMemory family, manufactured by Microchip Technology. It provides 32 Kbits (4-Kbyte) of EEPROM user memory organized into sixteen 256-byte zones. The component supports asynchronous ISO 7816-3 T=0 smart card protocols and synchronous 2-wire serial interfaces operating up to 1 MHz. Key electrical specifications include a supply voltage range of 2.7V to 5.5V, a maximum supply current of 5 mA, and an operating temperature range of -40°C to +85°C. It features hardware encryption, mutual authentication, and anti-tearing capabilities.

Specialized ICS Feature Summary

• 32-Kbit EEPROM User Memory divided into 16 independent 256-byte zones with programmable access rights
• Integrated 64-bit mutual authentication protocol, encrypted checksums, and stream encryption
• Supports ISO 7816-3 asynchronous T=0 protocol and synchronous 2-wire serial interface
• Includes 2-Kbit configuration zone with 37-byte OTP area for user-defined codes

Specialized ICS Applications

• Smart card applications requiring high security without microprocessor OS
• Embedded systems needing secure nonvolatile storage for sensitive information
• Multi-application devices utilizing multiple zones, key sets, and passwords
• ISO 7816-2 compliant modules for contact-based smart card readers

Specialized ICS Procurement Notes

Verify the package type corresponds to the industrial grade (-40°C to +85°C) when ordering the PU suffix. Confirm that the specific revision level matches system requirements, as the datasheet indicates updates regarding RoHS compliance and module information. Ensure sourcing channels provide genuine Microchip or former Atmel inventory, noting the company acquisition history.

Specialized ICS Selection Notes

Select the AT88SC3216C-PU for applications requiring 32 Kbits of secure storage with industrial temperature tolerance. Choose this model over lower-density variants if sixteen distinct data files or access-controlled zones are necessary. Ensure the host controller supports either the asynchronous T=0 protocol for smart card compatibility or the synchronous 2-wire interface for embedded integration.

Specialized ICS Part Context

This component belongs to the CryptoMemory series, which was originally developed by Atmel Corporation before its acquisition by Microchip Technology. The AT88SC3216C represents a mid-range capacity within the family, bridging smaller 8-Kbit devices and larger 64-Kbit or 256-Kbit options. It serves as a direct successor to earlier secure EEPROM designs, maintaining pin compatibility with standard serial EEPROMs while adding cryptographic hardware.

Specialized ICS Replacement Considerations

Direct replacements within the same package and specification include other members of the CryptoMemory family such as the AT88SC1616C or AT88SC6416C, provided memory capacity differences are acceptable. Verify that any substitute maintains the 8-PDIP package and industrial temperature rating.