AT88SC0104CA-SH

Updated: 2026-09-17

Overview

The AT88SC0104CA-SH is a 1Kbit serial EEPROM with advanced cryptographic security features, manufactured by Microchip Technology (formerly Atmel). This integrated circuit is designed for applications requiring secure data storage and authentication, such as printer consumables, medical devices, and industrial control systems. The chip implements multiple security mechanisms including password protection, encrypted communication, and authentication protocols. It operates across a wide voltage range (2.7V to 5.5V) and features a standard 2-wire serial interface for easy integration with various host systems.

Structure and Working Principle

The AT88SC0104CA-SH consists of 1024 bits of EEPROM memory organized as 8 zones with separate access controls. Each zone can be configured with different security levels, allowing flexible protection schemes for various data types. The security features work through challenge-response authentication protocols. When accessed, the chip requires cryptographic verification before permitting read or write operations. This prevents unauthorized access and cloning attempts, making it suitable for anti-counterfeiting applications.

Key Features

Primary features include 64-bit authentication password, 8 independent memory zones with configurable access rights, and 32-bit transaction counter that prevents replay attacks. The device supports high-speed operation up to 1MHz clock frequency. Additional security measures include voltage and frequency monitors that detect tampering attempts, and a permanent write protection option for critical data areas. The chip's small TSOP package (8-pin) makes it suitable for space-constrained applications.

Application Areas

This secure memory chip is widely used in printer cartridges for OEM authentication, preventing the use of counterfeit consumables. Other common applications include medical device authentication, IoT security, and industrial control system protection. In commercial products, it's often deployed in point-of-sale systems, vending machines, and gaming peripherals where secure identification is required. The automotive industry utilizes similar chips for ECU authentication and spare part verification.

Maintenance and Precautions

Proper ESD handling procedures must be followed during installation and handling. The chip should be stored in anti-static packaging when not in use, with recommended storage conditions of -40°C to +85°C and <60% relative humidity. Programming should be performed using manufacturer-approved tools and procedures. Incorrect voltage during programming or operation outside specified parameters may damage the security features or memory contents.

B2B Procurement Guide

When sourcing AT88SC0104CA-SH chips, verify the supplier's authorization from Microchip Technology to ensure genuine products. Lead times typically range from 4-8 weeks for standard orders, though some distributors may keep limited stock. For high-volume purchases (10,000+ units), direct manufacturer quotes often provide the best pricing. Consider ordering evaluation kits for prototyping. Some suppliers offer pre-programmed units with customer-specific security configurations.