Definitions

megacell

Zilog Z180

The Zilog Z180 8-bit processor is a successor of the Z80 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. The on-chip memory management unit (MMU) has the capability of addressing up to 1 MB of memory. It is possible to configure the Z180 to operate as the Hitachi HD64180.

Chip Speed (MHz) Timers I/O Comm. Contr. Others
Z80180

6, 8, 10 2 N/S CPU 1 MB MMU, 2xDMA's, 2xUARTs
Z80181

10 1 16 CPU 1 MB MMU, 2xDMA's, 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, 2xDMA's, 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, 2xDMA's, 2xUARTs

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