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C161PI 数据表(PDF) 71 Page - Infineon Technologies AG |
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C161PI 数据表(HTML) 71 Page - Infineon Technologies AG |
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71 / 82 page ![]() &3, Data Sheet 69 1999-07 Address hold after RdCS, WrCS W 55 CC -16 + W F – -16 + W F –ns Data hold after WrCS W 57 CC 9 + W F – TCL - 16 + W F –ns 1) RW-delay and W A refer to the next following bus cycle (including an access to an on-chip X-Peripheral). 2) Read data are latched with the same clock edge that triggers the address change and the rising RD edge. Therefore address changes before the end of RD have no impact on read cycles. 3) These parameters refer to the latched chip select signals (CSxL). The early chip select signals (CSxE) are specified together with the address and signal BHE (see figures below). Demultiplexed Bus (Reduced Supply Voltage Range) (continued) (Operating Conditions apply) ALE cycle time = 4 TCL + 2 W A + WC + WF (100 ns at 20 MHz CPU clock without waitstates) Parameter Symbol Max. CPU Clock = 20 MHz Variable CPU Clock 1 / 2TCL = 1 to 20 MHz Unit min. max. min. max. |
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