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M69KB128AA Datasheet(PDF) 42 Page - STMicroelectronics |
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M69KB128AA Datasheet(HTML) 42 Page - STMicroelectronics |
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42 / 68 page ![]() 9 DC and AC parameters M69KB128AA 42/68 Table 17. Asynchronous Read AC Characteristics Symbol Alt. Parameter(1) 1. These timings have been obtained in the measurement conditions described in Table 14: Operating and AC Measurement Conditions and Figure 13: AC Measurement Load Circuit. M69KB128AA Unit 70ns 85ns Min Max Min Max tAVQV tAA Address Valid to Output Valid 70 85 ns tAVLH tRHLH tAVS Address Valid to L High Configuration Register High to L High 55 ns tBLQV tBA Upper/Lower Byte Enable Low to Output Valid 70 85 ns tBHQZ (2) 2. The Hi-Z timings measure a 100mV transition from either VOH or VOL to VCCQ/2. tBHZ Upper/Lower Byte Enable High to Output Hi-Z 8 8 ns tBLQX (3) 3. The Low-Z timings measure a 100mV transition from the Hi-Z (VCCQ/2) level to either VOH or VOL. tBLZ Upper/Lower Byte Enable Low to Output Transition 10 10 ns tELTV tCEW Chip Enable Low to WAIT Valid 1 7.5 1 7.5 ns tELQV tCO Chip Enable Low to Output Valid 70 85 ns tELLH tCVS Chip Enable Low to L High 7 7 ns tEHEL tCPH Chip Enable High between Subsequent Asynchronous Operations 55 ns tEHQZ (2) tHZ Output Enable High to Output Hi-Z Chip Enable High to Output Hi-Z 88 ns tELQX (3) tLZ Chip Enable Low to Output Transition 10 10 ns tGLQV tOE Output Enable Low to Output Valid 20 20 ns tGHQZ (2) tOHZ Output Enable Low to Output Hi-Z 8 8 ns tGLQX (3) tOLZ Output Enable Low to Output Transition 3 3 ns tAVAX tRC Read Cycle Time 70 85 ns tLLLH tVP Latch Enable Low Pulse Width 5 7 ns tLHLL tVPH Latch Enable High Pulse Width 10 10 ns tLLQV tAADV Latch Enable Low to Output Valid 70 85 ns tLHAX tLHRL tAVH Latch Enable High to Address Transition Latch Enable High to Configuration Register Low 22 ns |
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