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STK15C88-S45I Datasheet(PDF) 6 Page - List of Unclassifed Manufacturers |
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STK15C88-S45I Datasheet(HTML) 6 Page - List of Unclassifed Manufacturers |
6 / 9 page STK15C88 August 1998 5-40 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. Note m: While there are 15 addresses on the STK15C88, only the lower 14 are used to control software modes. SOFTWARE CYCLES #1 & #2n,o (VCC = 5.0V ± 10%) Note n: The software sequence is clocked with E controlled reads. Note o: The six consecutive addresses must be in the order listed in the SOFTWARE MODE SELECTION Table - (0E38, 31C7, 03E0, 3C1F, 303F, 0FC0) for a STORE cycle or (0E38, 31C7, 03E0, 3C1F, 303F, 0C63) for a RECALL cycle. W must be high during all six consecutive cycles. SOFTWARE CYCLE: E CONTROLLED E WA13 - A0 (hex) MODE I/O NOTES LH 0E38 31C7 03E0 3C1F 303F 0FC0 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 l,m LH 0E38 31C7 03E0 3C1F 303F 0C63 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 l,m NO. SYMBOLS PARAMETER STK15C88-25 STK15C88-35 STK15C88-45 UNITS #1 MIN MAX MIN MAX MIN MAX 27 tAVAV STORE/RECALL initiation cycle time 25 35 45 ns 28 tELQZ g,n End of Sequence to Outputs Inactive 650 650 650 ns 29 tAVEL n Address Set-up Time 0 0 0 ns 30 tELEH n Clock Pulse Width 20 25 30 ns 31 tELAX g,n Address Hold Time 20 20 20 ns 32 tRECALL Recall 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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