ST21Y068 is a smartcard MCU with 68 KBytes high density EEPROM. Its major applications include mobile communications (GSM and CDMA) and Java applications. Hardware features include an enhanced 8/16-bit CPU core, 16 MBytes linear addressable memory, 248 Kbytes User ROM, 6 Kbytes User RAM, and 68 Kbytes User EEPROM.
The ST21Y068 is a serial access microcontroller designed for cost-effective secure mobile applications. It features an enhanced 8/16-bit CPU core with 16 MBytes of linear addressable memory, including 248 Kbytes of User ROM and 6 Kbytes of User RAM.
The device includes 68 Kbytes of User EEPROM with a True Random Number Generator and hardware DES accelerator for cryptographic performance. It supports ISO 7816-3 T=0 and T=1 protocols via an Asynchronous Receiver Transmitter and operates on supply voltages ranging from 1.8V to 5V.
| CPU Core Type | Enhanced 8/16-bit CPU core |
|---|---|
| User ROM Size | 248 Kbytes |
| User RAM Size | 6 Kbytes |
| EEPROM Capacity | 68 Kbytes |
| Max CPU Clock Frequency | 22 MHz |
| External Clock Range | 1 to 7.5 MHz |
| Supply Voltage Ranges | 1.8V, 3V and 5V |
The device is intended for mobile communications (GSM and CDMA) and Java applications.
It supports ISO 7816-3 T=0 and T=1 protocols.
The typical endurance is 500,000 Erase/Write cycles at 25°C.