ST22N144 Datasheet - STMicroelectronics

DESCRIPTION
The ST22N144 is a member of the SmartJ™ platform using a 32-bit Reduced Instruction Set Computer (RISC) core to execute both Native RISC instructions and JavaCard™ 2.x Technology instruction (byte codes) directly (See Figure 2. "SmartJ™ Platform EEPROM Architecture", on page 3).
Direct JavaCard™ byte code execution provides high performance advantage over processors that emulate the JavaCard™ byte code instruction set.