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STK15C68-P35I Datasheet(PDF) 6 Page - List of Unclassifed Manufacturers |
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STK15C68-P35I Datasheet(HTML) 6 Page - List of Unclassifed Manufacturers |
6 / 9 page STK15C68 4-66 SOFTWARE MODE SELECTION Note l: The six consecutive addresses must be in order listed. W must be high during all six consecutive cycles to enable a nonvolatile cycle. SOFTWARE CYCLES #1 & #2m,n (VCC = 5.0V ± 10%) Note m: The software sequence is clocked with E controlled reads. Note n: The six consecutive addresses must be in the order listed in the SOFTWARE MODE SELECTION Table - (0000, 1555, 0AAA, 1FFF, 10F0, 0F0F) for a STORE cycle or (0000, 1555, 0AAA, 1FFF, 10F0, 0F0E) for a RECALL cycle. W must be high during all six consecutive cycles. SOFTWARE CYCLE: E CONTROLLED E W GA12 - A0 (hex) MODE I/O with G Low I/O with G High NOTES LH X 0000 1555 0AAA 1FFF 10F0 0F0F Read SRAM Read SRAM Read SRAM Read SRAM Read SRAM Nonvolatile STORE Output data Output data Output data Output data Output data Output high Z Output High Z Output High Z Output High Z Output High Z Output High Z Output High Z l LH X 0000 1555 0AAA 1FFF 10F0 0F0E Read SRAM Read SRAM Read SRAM Read SRAM Read SRAM Nonvolatile RECALL Output data Output data Output data Output data Output data Output high Z Output High Z Output High Z Output High Z Output High Z Output High Z Output High Z l NO. SYMBOLS PARAMETER STK15C68-25 STK15C68-35 STK15C68-45 UNITS #1 MIN MAX MIN MAX MIN MAX 27 tAVAV STORE/RECALL Initiation Cycle Time 25 35 45 ns 28 tELQZ g,m End of Sequence to Outputs Inactive 650 650 650 ns 29 tAVEL m Address Set-up Time 0 0 0 ns 30 tELEH m Clock Pulse Width 20 25 30 ns 31 tELAX g,m Address Hold Time 20 20 20 ns 32 tRECALL Recall Cycle Duration 20 20 20 µs 28 32 23 31 30 29 27 27 DATA VALID DQ(Data Out) ELQZ t RECALL DATA VALID t STORE t HIGH IMPEDANCE ELAX t ELEH AVEL AVAV AVAV t E t t ADDRESS #1 t ADDRESS #6 ADDRESS |
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