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memory products - Al Kossow's Bitsavers

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TS59C11The READ instruction is the only i~truction whichoutputs serial data on the DO pin. After a READisntruction is received, the instruction and addressare decoded, followed by data transfer from the<strong>memory</strong> register into a serial-out shift register. Adummy bit (logical "0") precedes the data outputstring. The output data changes during the highstates of the system clock.Organization128x864x 16ANONAs 07As 015FIG. 3 - PROGRAM MODECS-Ir--------------------~;~I------~!~I--~~~~mrn~~-------CLK01ROV/BUSY--------------------5-_'-06-3\----~:~7--------~!~p::rThe PROGRAM instruction is followed by eithereight or sixteen bits of data, which are to be writteninto the specified address.After the last data bit (DO) has been shifted intothe data register the contents of the specified addresswill be erased and the new data written tothe same address.Durin~ automatic erase/write. sequence theROY/BUSY output will go low for the duration ofthe automatic programming cycle as indicated bytp.During a program cycle the internal erase and writeoperations occur automatically and are self-timedon the device. A single <strong>memory</strong> location may alsobe erased by programming that address with all"1 's".Organization AN ON128x8 A6 0 764x 16 As 0155/8243

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