The STMicroelectronics MT80C51FB is an 8-bit microcontroller built around the 8051 CPU core, clocked at 12 MHz, in a PQFP44 package. It is a classic 8051 architecture part suited for embedded control tasks — think keypad scanning, simple motor sequencing, or UART-bridged sensor readouts — where the 8-bit data path and mature toolchain keep the BOM predictable.
Lifecycle and sourcing
Listed as Active in the lifecycle record. The part is sourced and quoted to order against an RFQ through independent distribution.
