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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ST10R272L датащи(PDF) 67 Page - STMicroelectronics |
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ST10R272L датащи(HTML) 67 Page - STMicroelectronics |
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67 / 77 page  67/77 ST10R272L - ELECTRICAL CHARACTERISTICS 1 Cycle as programmed, including MCTC waitstates (Example shows 0 MCTC WS). 2 The leading edge of the respective command depends on RW-delay. 3READY (or READY) sampled HIGH (resp. LOW) at this sampling point generates a READY controlled waitstate, READY (resp. READY) sampled LOW (resp. HIGH) at this sampling point terminates the currently running bus cycle. 4READY (resp. READY) may be deactivated in response to the trailing (rising) edge of the corresponding command (RD or WR). 5 If the Asynchronous READY (or READY) signal does not fulfill the indicated setup and hold times with respect to CLKOUT (e.g. because CLKOUT is not enabled), it must fulfill t 37 in order to be safely synchronized. This is guaranteed, if READY is removed in response to the command (see Note 4)). Figure 24 CLKOUT and READY/READY Sync READY t35 t36 t35 t36 Async READY t58 t59 t58 t59 t37 3) 3) 5) t60 4) see 6) 3) 3) CLKOUT ALE t30 t34 Sync READY t35 t36 t35 t36 Async READY t58 t59 t58 t59 waitstate READY MUX/Tristate 6) t32 t33 t29 Running cycle 1) t31 t37 3) 3) 5) Command RD, WR t60 4) 2) 7) 3) 3) 1 |
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