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M58LW032 数据表(PDF) 40 Page - STMicroelectronics |
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M58LW032 数据表(HTML) 40 Page - STMicroelectronics |
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40 / 61 page ![]() M58LW032A 40/61 Figure 19. Synchronous Burst Read - Continuous - Valid Data Ready Output Note: 1. Valid Data Ready = Valid Low during valid clock edge (M8 = 0) 2. V= Valid output, NV= Not Valid output. 3. R is an open drain output with an internal pull up resistor of 1M Ω. Depending on the Valid Data Ready pin capacitance load an external pull up resistor must be chosen according to the system clock period. Table 20. Synchronous Burst Read AC Characteristics Note: For other timings see Table 15, Asynchronous Bus Read Characteristics. Symbol Parameter Test Condition M58LW032A Unit 90 110 tAVKH Address Valid to Active Clock Edge E = VIL Min 7 7 ns tAVLH Address Valid to Latch Enable High E = VIL Min 10 10 ns tELKH Chip Enable Low to Active Clock Edge E = VIL Min 10 10 ns tELLH Chip Enable Low to Latch Enable High E = VIL Min 10 10 ns tGLKH Output Enable Low to Valid Clock Edge E = VIL, L = VIH Min 20 20 ns tKHAX Valid Clock Edge to Address Transition E = VIL Min 5 5 ns tKHLL Valid Clock Edge to Latch Enable Low E = VIL Min 0 0 ns tKHLH Valid Clock Edge to Latch Enable High E = VIL Min 0 0 ns tKHQX Valid Clock Edge to Output Transition E = VIL, G = VIL, L = VIH Min 3 3 ns tLLKH Latch Enable Low to Valid Clock Edge E = VIL Min 6 6 ns tLLLH Latch Enable Low to Latch Enable High E = VIL Min 6 6 ns tKHQV Valid Clock Edge to Output Valid E = VIL, G = VIL, L = VIH Max 10 10 ns tQVKH Output Valid to Active Clock Edge E = VIL, G = VIL, L = VIH Min 5 5 ns tRLKH Valid Data Ready Low to Valid Clock Edge E = VIL, G = VIL, L = VIH Min 5 5 ns AI05510 K Output (2) V V NV NV V V tRLKH R V (3) |
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