Z8018x

Based on a microcoded execution unit and an advanced CMOS manufacturing technology, the Z8018x is an 8-bit MPU which provides the benefits of reduced system costs and low power operation while offering higher performance and maintaining compatibility with a large base of industry standard software written around the ZiLOG Z8X CPU.

Higher performance of Z8018x is obtained by virtue of higher operating frequencies, reduced instruction execution times, an enhanced instruction set, and an on-chip memory management unit (MMU) with the capability of addressing up to 1 MB of memory.

Reduced system of Z8018x costs are obtained by incorporating several key system functions on-chip with the CPU. These key functions include I/O devices suc as DMA, UART, and timer channels. Also included on-chip are several glue functions such as dynamic RAM refresh control, wait state generators, clock oscillator, and interrupt controller.

Not only does the Z8X180 consume a low amount of power during normal operation, but processors with Z8S180 and Z8L180 class processors also provides two operating modes that are designed to drastically reduce the power consumption even further. The SLEEP mode reduces power by placing the CPU into a stopped state, thereby consuming less current, while the on-chip I/O device is still operating. The SYSTEM STOP mode of Z8018x  places both the CPU and the on-chip  peripherals into a stopped state, thereby reducing power consumption even further.When combined with other CMOS VLSI devices and memories, the Z8X180 provides an excellent solution to system applications requiring high performance, and low power operation.

Figures 1 through 3 illustrate the three pin packages in the Z8X180 MPU family:
• 64-Pin Dual In-line Package (DIP), Figure 1
• 68-Pin Plastic Leaded Chip Carrier (PLCC), Figure 2
• 80-Pin Quad Flat Pack (QFP), Figure 3

Pin out package descriptions for other Z8X180-based products are covered in their respective product specifications.Figure 4 depicts the block diagram that is shared throughout all configurations of the Z8X180.