AMD

Description

Dallas Semiconductor DS12885, DS12887, DS1685, or DS1687 . This application note discusses the differences between these parts and potential issues in 24 PIN 740-Mil ENCAPSULATED DIP PACKAGE. NOTE: SOME PINS ARE MISSING BY DESIGN. PKG. 24-PIN. DIM. MIN. MAX. A IN. MM. 1.320. 33.53. 1.335. May 31, 2001 Keywords: DS1685, DS1687 ,DS17285,DS17287,DS17485,DS17487,DS17885, DS17887,extended ram,user ram, RAM. APPLICATION NOTE Oct 8, 2002 refer to the DS87C320 and the DS1687 Quick View data sheets. PIN CONFIGURATIONS. Application Note 516. Using Multiplexed Bus Clocks. Jul 17, 2002 In Figure 1, the interface between the RTC ( DS1687 ) and an 8051-type processor (DS2250) ignores the expanded memory multiplexed