• Full upward compatibility with SAB 80C517A/83C517A-5
• Up to 24 MHz external operating frequency
– 500 ns instruction cycle at 24 MHz operation
• Superset of the 8051 architecture with 8 datapointers
• On-chip emulation support logic (Enhanced Hooks Technology™)
• 32K byte on-chip ROM (with optional ROM protection)
– alternatively up to 64K byte external program memory
• Up to 64K byte external data memory
• 256 byte on-chip RAM
• Additional 2K byte on-chip RAM (XRAM)
• Seven 8-bit parallel I/O ports
• Two input ports for analog/digital input