View at88sc102 datasheet:

Features • 1K X 1 Serial EEPROM with Security Logic • Two Application Zones • Stores and Validates Security Codes • Maximum of Eight Incorrect Security Code Attempts • Provides Transport Code Security • Low Voltage Operation: 2.7V to 5.5V • Manufactured using Low Power CMOS Technology • Supports ISO/IEC 7816-3 Synchronous Protocol • VPP Internally Generated • 2 µs Read Access Time; 2 ms Write Cycle Time 1K EEPROM - • Temperature Range from -40°C to 85°C • ESD Protection 4,000V Minimum. Security Logic • High Reliability: 100,000 Program/Erase Cycles Guaranteed with Two Data Retention of 10 years Application Description Zones The AT88SC102 device is a low-cost, synchronous, secure memory integrated circuit, designed for use in prepaid and loyalty smart card appli