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Partname:Z8S18020FEC
Description:Enhanced Z180 microprocessor. 20 MHz
Manufacturer:ZILOG
Package:PQFP
Pins:80
Oper. temp.:-40 to 85
Datasheet:PDF (387K).
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The enhanced Z80180/Z8S180/Z8L180TM significantly improves on the previous Z80180 models while still providing full backward compatibility with existing Zilog Z80 devices. The Z80180/Z8S180/Z8L180 now offers faster execution speeds, power saving modes, and EMI noise reduction. This enhanced Z180 design also incorporates additional feature enhancements to the ASCIs, DMAs, and Icc STANDBY Mode power consumption. With the addition of "ESCC-like" Baud Rate Generators (BRGs), the two ASCIs now have the flexibility and capability to transfer data asynchronously at rates of up to 512 Kbps. In addition, the ASCI receiver has added a 4-byte First In First Out (FIFO) which can be used to buffer incoming data to reduce the incidence of overrun errors. The DMAs have been modified to allow for a "chain-linking" of the two DMA channels when set to take their DMA requests from the same peripherals device. This feature allows for non-stop DMA operation between the two DMA channels, reducing the amount of CPU intervention (Figure 1).

Click here to download Z8S18020FEC Datasheet
Click here to download Z8S18020FEC Datasheet
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