Microchip AT89S4051-24SU, 8bit 8051 Microcontroller, AT89, 24MHz, 4 kB Flash, 20-Pin SOIC

Atmel offers Flash 8051 microcontrollers featuring In-System Programming (ISP) that they can be programmed with the appropriate software, either in parallel or in serial mode.

For products that are Customized and under Non-cancellable & Non-returnable, Sales & Conditions apply.

8051 Architecture Microcontrollers

Atmel's 8-bit microcontrollers (MCUs) based on the 8051 instruction set, combine proven technology with the latest features and functionality, with all featuring advanced flash memory.

Device Family

Single Cycle Core
Flash ISP (In-System Programmable)
Flash (Reprogrammable)
CAN Networking MCUs
USB MCUs
ROMless