Z86243

The Z86233/243 Consumer Controller Processor is a member of Zilog's Z8® single-chip microcontroller family featuring enhanced wake-up circuitry, programmable Watc-Dog timers and low-EMI options. The Z86233/243 parts provide flexible and efficient growth paths for designers currently using the 4K ROM versions of the consumer controller devices (Z86C30/C40/C33/C43).

Four address spaces, the Program Memory, Register File, Data Memory and Expanded Register File (ERF), support a wide range of memory configurations. Through the ERF, the designer has access to two additional control registers which provide extra peripheral devices, I/O ports, and register addresses.For applications demanding powerful I/O capabilities, the Z86243 provides 32 pins dedicated to input and output. The Z86233 provides 24 pins dedicated to input and output. These  Z86233/243 lines are grouped into four ports with eight lines each, and are configurable under software control to provide timing, status signals, or parallel I/O.

With ROM/ROMless selectivity, the Z86233/243 provides both external memory and pre-programmed ROM, which enables this Z8 microcontroller to be used in high-volume applications, or where code flexibility is required.