The ST23YL18 product is a serial access microcontroller specially designed for secure smartcard applications.
It is based on an enhanced STMicroelectronics 8/16-bit CPU core offering 16 Mbytes linear addressing space. It is manufactured using an advanced highly reliable ST CMOS EEPROM technology.
Moreover, an ISO 7816-3 EMV-compliant Asynchronous Receiver Transmitter (IART) communication peripheral is available.
**Key Features**
ST23YL18 major applications include:
Banking, IT and Pay TV applications
Hardware features
Enhanced 8/16-bit ST23 CPU core with 16 Mbytes linear addressable memory
196 Kbytes User ROM
4 Kbytes User RAM
2 Kbytes NESCRYPT RAM
18 Kbytes User EEPROM including 128 Bytes User OTP area:
Highly reliable CMOS EEPROM submicron technology
10-year data retention
500,000 Erase/Write cycles endurance typical at 25°C
1 to 64 Bytes Erase or Program in 1.5 ms
NESCRYPT crypto-processor for public key cryptography
Three 8-bit timers with watchdog and interrupt capability
3V and 5V supply voltage ranges
External clock frequency up to 10 MHz
High performance provided by:
CPU clock frequency up to 29 MHz
Power-saving Standby state
Contact assignment compatible ISO 7816-3
Asynchronous Receiver Transmitter (IART) for high speed serial data support (ISO 7816-3 and EMV™ compliant)
ESD protection greater than 5 kV (HBM)
Security features
Active shield
Monitoring of environmental parameters
Protection mechanisms against faults
Hardware Security Enhanced DES accelerator
AIS-31 class P2 compliant True RandomNumber Generator (TRNG)
ISO 3309 CRC calculation block
Memory Protection Unit (MPU)
Unique serial number on each die
Development environment
Software development and firmware generation are supported by a comprehensive set of development tools dedicated to software design and validation:
