80C528/83C528 is a 8-bit single-chip microcontroller manufactured by Philips Semiconductors using an advanced CMOS process and is a derivative of the 80C51 microcontroller family.
The 80C528/83C528 family is a CMOS single‑chip 8‑bit microcontroller derived from the 80C51 architecture. It offers up to 32 KB of ROM, 512 bytes of RAM, four 8‑bit I/O ports, multiple timers, a full‑duplex UART, I²C interface, and on‑chip watchdog timer with power‑reduction modes.
This datasheet contains the device description, feature list, pin configurations, ordering information, package options, block diagram, detailed pin descriptions, and a table of special function registers. It also includes definitions and legal notices relevant to the product.