EM Microelectronic announces the EMTCG256-3G, a flash memory-based smart card IC designed for use in SIM and Java cards for GSM mobile pones. The EMTCG256-3G is compatible with the ISO7816-3 Integrated Circuit Card (smart card) specification, and operates with power supplies from 5 V down to 1.8 V. The EMTCG256-3G contains 256kB of pure flash memory. The device features a high-performance 8-bit market standard 8051 microcontroller core that is implemented in hardware. An internal tamper-proof clock operates at up to 30 MHz. Security is also enhanced by the built-in analog sensors (frequency, voltage, and temperature), triple DES encryption algorithms, hardware-protected memory partitioning and tamper notification.