onsemi MC74AC646
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. The four fundamental data handling functions available are illustrated Figures 1 to 4.| Part No. | MC74AC646 |
|---|---|
| Datasheet | MC74AC646 Download |
| Manufacturer |  onsemi |
| Description | Octal Transceiver/Register |
| Buy | Stock & Price |
FEATURES
● 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
● These are Pb−Free Devices REAL TIME TRANSFER A‐BUS TO B‐BUS A‐BUS REAL TIME TRANSFER B‐BUS TO A‐BUS A‐BUS REG REG REG REG B‐BUS Figure 1. B‐BUS Figure 2. MARKING DIAGRAMS 24 1 SO−24 DW SUFFIX CASE 751E AC646 AWLYYWWG ACT646 AWLYYWWG A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G = Pb−Free Package ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 9 of this data sheet. STORAGE FROM BUS TO REGISTER A‐BUS REG REG B‐BUS Figure 3. TRANSFER FROM REGISTER TO BUS A‐BUS REG REG B‐BUS Figure 4. © Semiconductor Components Industries, LLC, 2015 1 May, 2024 − Rev. 8 Publication Order Number: MC74AC646/D MC74AC646, MC74ACT646 VCC CBA SBA G B0 B1 B2 B3 B4 B5 B6 B7 24 23 22 21 20 19 18 17 16 15 14 13 1 2 3 4 5 6 7 8 9 10 11 12 CAB SAB DIR A0 A1 A2 A3 A4 A5 A6 A7 GND Figure 5.
