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MC74ACT646DW bảng dữ liệu(PDF) 1 Page - ON Semiconductor |
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1 / 12 page © Semiconductor Components Industries, LLC, 2001 May, 2001 – Rev. 5 1 Publication Order Number: MC74AC646/D MC74AC646, MC74ACT646 Octal Transceiver/Register with 3-State Outputs (Non-inverting) The MC74AC646/74ACT646 consist of registered bus transceiver circuits, with outputs, D–type flip–flops and control circuitry providing multiplexed transmission of data directly from the input bus or from the internal storage registers. Data on the A or B bus will be loaded into the respective registers on the LOW–to–HIGH transition of the appropriate clock pin (CAB or CBA). The four fundamental data handling functions available are illustrated Figures 1 to 4. • Independent Registers for A and B Buses • Multiplexed Real–Time and Stored Data Transfers • Choice of True and Inverting Data Paths • 3–State Outputs • 300 mil Slim Dual In–Line Package • Outputs Source/Sink 24 mA • ′ACT646 Has TTL Compatible Inputs REAL TIME TRANSFER ABUS TO BBUS REAL TIME TRANSFER BBUS TO ABUS REG REG REG REG REG REG REG REG BBUS BBUS ABUS ABUS BBUS BBUS ABUS ABUS STORAGE FROM BUS TO REGISTER TRANSFER FROM REGISTER TO BUS Figure 1. Figure 2. Figure 3. Figure 4. http://onsemi.com MARKING DIAGRAMS Device Package Shipping ORDERING INFORMATION MC74AC646N PDIP–24 15 Units/Rail MC74AC646DW SOIC–24 30 Units/Rail MC74ACT646N PDIP–24 15 Units/Rail MC74AC646DWR2 SOIC–24 1000 Tape & Reel MC74ACT646DW SOIC–24 30 Units/Rail MC74ACT646DWR2 SOIC–24 1000 Tape & Reel A = Assembly Location L, WL = Wafer Lot Y, YY = Year W, WW = Work Week PDIP–24 N SUFFIX CASE 724 SO–24 DW SUFFIX CASE 751E ACT646 AWLYYWW 1 24 MC74ACT646N AWLYYWW 1 24 PDIP–24 SO–24 MC74AC646N AWLYYWW AC646 AWLYYWW |
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