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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AM29BDS640G датащи(PDF) 12 Page - Advanced Micro Devices |
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AM29BDS640G датащи(HTML) 12 Page - Advanced Micro Devices |
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12 / 77 page  10 Am29BDS640G 25903C2 May 9, 2006 Data Sheet Input/Output Descriptions A21-A0 = Address inputs DQ15-DQ0 = Data input/output CE# = Chip Enable input. Asynchronous relative to CLK for the Burst mode. OE# = Output Enable input. Asynchronous relative to CLK for the Burst mode. WE# = Write Enable input. VCC = Device Power Supply (1.65 – 1.95 V). VIO = Input & Output Buffer Power Supply (either 1.65 – 1.95 V or 2.7 – 3.15 V). VSS =Ground VSSIO = Output Buffer Ground NC = No Connect; not connected internally RDY = Ready output; indicates the status of the Burst read. Low = data not valid at expected time. High = data valid. CLK = CLK is not required in asynchronous mode. In burst mode, after the initial word is output, subsequent active edges of CLK increment the internal address counter. AVD# = Address Valid input. Indicates to device that the valid address is present on the address inputs (A21–A0). Low = for asynchronous mode, indicates valid address; for burst mode, causes starting address to be latched. High = device ignores address inputs RESET# = Hardware reset input. Low = device resets and returns to reading array data WP# = Hardware write protect input. At VIL, disables program and erase functions in the two outermost sectors. Should be at VIH for all other conditions. ACC = At VID, accelerates programming; automatically places device in unlock bypass mode. At VIL, locks all sectors. Should be at VIH for all other conditions. Logic Symbol 22 16 DQ15–DQ0 A21–A0 CE# OE# WE# RESET# CLK RDY AVD# WP# ACC |
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