8XC251TQ
8XC251TQ is HIGH-PERFORMANCE CHMOS MICROCONTROLLER manufactured by Intel Corporation.
ADVANCE INFORMATION
8x C251TA/TB/TP/TQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER mercial/Express s Real-time and Programmed Wait State s User-selectable Configurations:
Bus Operation s Binary-code patible with MCS® 51 s Pin patible 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
- pare 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 8x C251Sx patible 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
- pare/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 plete System Development
1-Kbyte (TA/TB) or 512-Byte (TP/TQ) s 8-bit, 2-clock External Code Fetch in
Page Mode s Fast MCS 251 Instruction Pipeline
Support
- patible with Existing Tools
- MCS 251 Tools Available: piler, Assembler, Debugger, ICE s Package Options (PDIP and PLCC)
© INTEL CORPORATION, 1997
November, 1997
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