The Zilog

Zilog

Zilog, Inc., previously known as ZiLOG , is a manufacturer of 8-bit and 24-bit microcontrollers, and is most famous for its Intel 8080-compatible Z80 series.-History:...

 Z180 8-bit processor is a successor of the Z80

Zilog Z80

The Zilog Z80 is an 8-bit microprocessor designed by Zilog and sold from July 1976 onwards. It was widely used both in desktop and embedded computer designs as well as for military purposes...

 CPU. It is compatible with the large base of software written for the Z80. The Z180 family adds higher performance and integrated peripheral functions like clock generator, 16 bit counters/timers, interrupt controller, wait-state generators, serial ports and a DMA controller. It uses separate read and write strobes, sharing similar timings with the Z80 and Intel processors. The on-chip memory management unit (MMU) has the capability of addressing up to 1 MB

Megabyte

The megabyte is a multiple of the unit byte for digital information storage or transmission with two different values depending on context: bytes generally for computer memory; and one million bytes generally for computer storage. The IEEE Standards Board has decided that "Mega will mean 1 000...

 of memory. It is possible to configure the Z180 to operate as the Hitachi HD64180

HD64180

The HD64180 is a Z80-based embedded microprocessor developed by Hitachi with an integrated memory management unit . The Hitachi HD64180 "Super Z80" was later licensed to Zilog and sold by them as the Z64180 and with some enhancements as the Zilog Z180. It has the following features:* Memory...

.

Chip	Speed (MHz)	Timers	I/O	Comm. Contr.	Others
Z80180	6, 8, 10	2	N/S	CPU	1 MB MMU, 2xDMAs, 2xUARTs
Z80181	10	1	16	CPU	1 MB MMU, 2xDMAs, 2xUARTs
Z80182	16, 33, 20	0	Clock Serial, 24	ESCC, CSIO, UART	S180 Megacell, 2xESCC channels, 16550 MIMIC
Z80195	20, 33	4	7/24	SCC, CSIO, UART
Z8L180	20	2	Clock Serial	CSIO, UART	1 MB MMU, 2xDMAs, 2xUARTs, 3.3 V Operation
Z8L182	20	0	Clock Serial	ESCC, CSIO, UART	S180 Megacell, 2xESCC channels, 16550 MIMIC, 3.3V operation
Z8S180	10, 20, 33	2	Clock Serial	UART, DMA, I2C, SPI	1 MB MMU, 2xDMAs, 2xUARTs

Z80182

The Zilog

Zilog

Zilog, Inc., previously known as ZiLOG , is a manufacturer of 8-bit and 24-bit microcontrollers, and is most famous for its Intel 8080-compatible Z80 series.-History:...

 Z80182 is an enhanced, faster version of the older Z80 and is part of the Z180 microprocessor

Microprocessor

A microprocessor incorporates the functions of a computer's central processing unit on a single integrated circuit, or at most a few integrated circuits. It is a multipurpose, programmable device that accepts digital data as input, processes it according to instructions stored in its memory, and...

 family. It's nicknamed the Zilog Intelligent Peripheral Controller (ZIP). It's also fully static (the clock can be halted and no data in the registers will be lost) and has a low EMI

Electromagnetic interference

Electromagnetic interference is disturbance that affects an electrical circuit due to either electromagnetic induction or electromagnetic radiation emitted from an external source. The disturbance may interrupt, obstruct, or otherwise degrade or limit the effective performance of the circuit...

 option that reduces the slew rate

Slew rate

In electronics, the slew rate represents the maximum rate of change of a signal at any point in a circuit.Limitations in slew rate capability can give rise to non linear effects in electronic amplifiers...

of the outputs.

The Z80182 can operate at 33 MHz with an external oscillator for 5 volt operation, or at 20 MHz using the internal oscillator for 3.3 volt operation.