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74ALS651N 数据表(PDF) 4 Page - NXP Semiconductors |
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74ALS651N 数据表(HTML) 4 Page - NXP Semiconductors |
4 / 13 page Philips Semiconductors Product specification 74ALS651/74ALS651-1 74ALS652/74ALS652-1 Transceiver/register 1991 Feb 08 4 BUS MANAGEMENT FUNCTIONS The following examples demonstrate the four fundamental bus-management functions that can be performed with the 74ALS651/74ALS651-1 and 74ALS652/74ALS652-1. The select pins determine whether data is stored or transferred through the device in real time. The output enable pins determine the direction of the data flow. REAL TIME BUS TRANSFER BUS B TO BUS A REAL TIME BUS TRANSFER BUS A TO BUS B STORAGE FROM A, B, OR A AND B TRANSFER STORED DATA TO A AND/OR B BUS A BUS A BUS A BUS A BUS B BUS B BUS B BUS B OEAB OEBA CPAB CPBA SAB SBA LL X X X L OEAB OEBA CPAB CPBA SAB SBA HH X X L X OEAB OEBA CPAB CPBA SAB SBA XX ↑ XX X LX X ↑ XX LX ↑↑ XX OEAB OEBA CPAB CPBA SAB SBA H L H or L H or L H H SC00133 |
类似零件编号 - 74ALS651N |
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类似说明 - 74ALS651N |
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