Product Overview
Intel's 8-bit MCS® 51 family of microcontrollers is a leading choice for embedded control. This Classic family consists of CHMOS versions of all the original 8-bit microcontrollers that introduced the MCS 51 microcontroller family. Intel offers a wide variety of on-board memory in EPROM and ROM, as well as CPU-only microcontrollers. Intel's proven CHMOS technology provides lower power, higher integration and higher performance.

Features	Benefits
- MCS® 251 microcontroller architecture core
8-bit CPU optimized for event control	Efficient. Event control design
Boolean processing	Ease. Simple bit manipulation
On-chip memory (up to 32K)	Solutions. Enables single-chip designs
On-chip peripherals (timer/counters, serial ports, PCA, etc.)	High integration. Enables low-cost and I/O ports, low-chip count designs