8051 Architecture
8051 Architecture

8051 Microcontrollers

Atmel offers a broad range of microcontrollers based on the 8051 architecture ranging in code density from 2K bytes to 128K bytes. The product line includes 8-bit microcontrollers based on the powerful, low-power Single-Cycle AT89LP core as well as MCS-51® industry standard socket drop-in devices and small footprint 14/16/20/28-pin derivatives, all manufactured in advanced Flash technologies (see on-line selection table). Most members in this product line include ISP (In-System Programming) capability, while some also support the high-speed (X2) mode which doubles the internal clock frequency for CPU and peripherals upon user selection.

There are also Application Specific 8051 Products with specialized functions to serve dedicated markets:

  • CAN Networking
  • Smart Card Readers
  • USB Applications

Atmel's single-cycle AT89LP devices can be used in existing 80C51-based applications with binary-level code compatibility while substantially increasing performance by a factor of 6 to12 times, up to 30MIPS. This exciting family brings modern features and peripherals to the user while minimizing power consumption for low-voltage and battery-powered applications.