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M69KB128AA Datasheet(PDF) 46 Page - STMicroelectronics |
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M69KB128AA Datasheet(HTML) 46 Page - STMicroelectronics |
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46 / 68 page  9 DC and AC parameters M69KB128AA 46/68 Table 19. Asynchronous Write AC Characteristics Symbol Alt. Parameter(1) M69KB128AA Unit 70ns 85ns MinMax MinMax tAVBL, tAVEL, tAVWL, tLLWL tAS Address Set-up to Beginning of Write Operation 0 0 ns tAVLH, tRHLH tAVS Address Valid to Latch Enable High Configuration Register High to Latch Enable High 55 ns tAVWH, tAVEH, tAVBH tAW Address Set-up to End of Write Operation 70 85 ns tAVAX tWC Write Cycle Time 70 85 ns tBLBH, tBLEH tBLWH tBW Upper/Lower Byte Enable Low to End of Write Operation 70 85 ns tELTV tCEW Chip Enable Low to WAIT Valid 1 7.5 1 7.5 ns tEHEL tCPH Chip Enable High between Subsequent Asynchronous Operations 55 ns tELLH tCVS Chip Enable Low to L High 7 7 ns tELWH tELEH tELBH tCW Chip Enable Low to End of Write Operation 70 85 ns tEHDX, tWHDX, tBHDX tDH Input Hold from Write 0 0 ns tELWH, tDVBH, tDVEH tDVWH tDW Input Valid to Write Setup Time 20 20 ns tEHTZ, tBHTZ (2) tHZ Chip Enable High to WAIT Hi-Z LB/UB High to WAIT Hi-Z Write Enable High to WAIT Hi-Z 88 ns tLHAX, tLHRL tAVH Latch Enable High to Address Transition or Latch Enable High to Configuration Register Low 22 ns tLLLH tVP Latch Enable Low Pulse Width 5 7 ns tLHLL tVPH Latch Enable High Pulse Width 10 10 ns tLLWH tVS Latch Enable Low to Write Enable High 70 85 ns tWHQZ tWHZ Beginning of Asynchronous Write to Data Output Hi-Z 10 10 ns tWLBH, tWLEH, tWLWH (3) tWP Write Pulse Width 45 55 ns |
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