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EPM7032JC44-2资料 | |
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EPM7032JC44-2 PDF Download |
File Size : 116 KB
Manufacturer:ALTERA Description:The operation mode of the M5M51016B series are determined by a combination of the device control inputs BC1, BC 2, CS, W and OE. Each mode is summarized in the function table. A write cycle is executed whenever the low level W overlaps with the low level BC1 and/or BC2 and the high level CS. The address must be set up before the write cycle and must be stable during the entire cycle. The data is latched into a cell on the trailing edge of W, BC1, BC2 or CS, whichever occurs first, requiring the set-up and hold time relative to these edge to be maintained. The output enable input OE directly controls the output stage. Setting the OE at a high level, the output stage is in a high-impedance state, and the databus contention problem in the write cycle is eliminated. A read cycle is executed by setting W at a high level and OE at a low level while BC1 and/or BC2 and CS are in an active state. (BC1 and/or BC2=L,CS=H) When setting BC1 at a high level and the other pins are in an active state, upper-Byte are in a selectable mode in which both reading and writing are enabled, and lower-Byte are in a non-selectable mode.And when setting BC2 at a high level and the other pins are in an active state, lower-Byte are in a selectable mode and upper -Byte are in a non-selectable mode. |
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1PCS | 100PCS | 1K | 10K | ||
价 格 | |||||
型 号:EPM7032JC44-2 厂 家:ALTERA 封 装:83 批 号:93+ 数 量:PLCC44 说 明: |
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运 费: 所在地: 新旧程度: |
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