N80C42 데이터 시트보기 (PDF) - Intel

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N80C42

UNIVERSAL PERIPHERAL INTERFACE CHMOS 8-BIT SLAVE MICROCONTROLLER

Intel 

SYNC MODE TIMING DIAGRAMS

UPI-C42 UPI-L42

Minimum Specifications

SYNC Operation Time tSYNC e 3 5 XTAL 2 Clock cycles Reset Time tRS e 4 tCY

NOTE

The rising and falling edges of T0 should occur during low state of XTAL 2 clock

APPLICATIONS

290414 – 15

Figure 7 UPI-C42 Keyboard Controller

290414 – 12

Figure 8 8088-UPI-C42 Interface

290414 – 9

13

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