8XC251TP

ADVANCE INFORMATION 8xC251TA/TB/TP/TQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER Commercial/Express s Real-time and Programmed Wait State s User-selectable Configurations: Bus Operation s Binary-code Compatible with MCS® 51 s Pin Compatible with 44-pin PLCC and 40-pin PDIP MCS 51 Sockets s Register-based MCS® 251 Architecture — 40-byte Register File — Registers Accessible as Bytes, Words, or Double Words s Enriched MCS 51 Instruction Set — 16-bit and 32-bit Arithmetic and Logic Instructions — Compare and Conditional Jump Instructions — Expanded Set of Move Instructions s Linear Addressing s 256-Kbyte Expanded External — External Wait States (0-3 wait states) — Address Range & Memory Mapping — Page Mode — Extended Data Float Timings or 8xC251Sx Compatible AC Timings s 32 Programmable I/O Lines s Eight Maskable Interrupt Sources with Four Programmable Priority Levels s Three Flexible 16-bit Timer/counters s Hardware Watchdog Timer s Programmable Counter Array Code/Data Memory Space s ROM Options: 16 Kbytes (TB/TQ), 8 Kbytes (TA/TP), or without ROM s 16-bit Internal Code Fetch s 64-Kbyte Extended Stack Space s On-chip Data RAM Options: — High-speed Output — Compare/Capture Operation — Pulse Width Modulator — Watchdog Timer s Two Programmable Serial I/O Ports — Framing Error Detection — Automatic Address Recognition s High-performance CHMOS Technology s Static Standby to 24-MHz Operation s Complete System Development 1-Kbyte (TA/TB) or 512-Byte (TP/TQ) s 8-bit, 2-clock Exte...