AT88SC1003

• Compatible with Many Existing Memory Card Applications
• 1-Kbit EEPROM User Memory Two256x1ApplicationZonesOne512x1ApplicationZone Protected by Security Logic Vpp Internally Generated for Single Voltage Operation 2 µs Read Access Time 2 ms Write Cycle (Self-timed)
• Additional EEPROM Memory for Code Storage Three OTP Areas, 144 Bits Total 64-bit Code-protected Zone
• Security Features Stores and Validates Security Codes Maximum of Four Incorrect Security Code Attempts Provides Security Code Protection During Transportation
• High Reliability Endurance: 100,000 Cycles Data Retention: 10 Years ESD Protection: 4,000V Minimum
• Manufactured Using Low-power CMOS Technology
• Temperature Range from −25°Cto+85°C
• ISO 7816-compliant Card Modules

The AT88SC1003 is a low-cost synchronous integrated circuit, designed for use inprepaid and loyalty smart card applications. The AT88SC1003 provides 1024 bits ofserial EEPROM (Electrically Erasable and Programmable Read Only Memory) withinthree application zones, plus 64 bits in a code-protected zone. Security logic providesaccess protection through use of a 16-bit security code.

Additional EEPROM memory is available to hold unalterable information about thecard history. Separate zones are available for data written by the fabrication facility,card manufacturer and card issuer. After personalization of the memory by the issuer,an internal fuse is blown that secures critical memory areas of the device AT88SC1003 and config-ures the IC for use by the end customer. The action of blowing this fuse is irreversible.

The AT88SC1003 is manufactured using low-power CMOS technology. EEPROMprogramming functions are accomplished using an internally generated high-voltagepump for single voltage supply operation. Program timing is controlled internally.Memory endurance is guaranteed to 100,000 erase/write cycles. Ten-year data reten-tion is guaranteed.