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Part Number: 74ACQ646

 

 

 

 

Description: The ACQ/ACTQ646 consist of registered bus transceiver circuits, with outputs, D-type flip-flops, and c...


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74ACQ646 General Description


The ACQ/ACTQ646 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 (CPAB or CPBA). The four fundamental handling functions available are illustrated in Figure 1, Figure 2, Figure 3 and Figure 4.

The ACQ/ACTQ utilizes Fairchild Quiet Series technology to guarantee quiet output switching and improved dynamic threshold performance. FACT Quiet Series features GTO output control and undershoot corrector in addition to a split ground bus for superior performance.

74ACQ646 Maximum Ratings

 

Supply Voltage (VCC) ........−0.5V to +7.0V
DC Input Diode Current (IIK)
VI = −0.5V ...................−20 mA
VI = VCC + 0.5V ................+20 mA
DC Input Voltage (VI) ......−0.5V to VCC0.5V
DC Output Diode Current (IOK)
VO = −0.5V .................. −20 mA
VO = VCC + 0.5V ...............+20 mA
DC Output Voltage (VO) ..  −0.5V to VCC + 0.5V
DC Output Source
or Sink Current (IO)..............±50 mA
DC VCC or Ground Current
per Output Pin (ICC or IGND)........ ±50 mA
Storage Temperature (TSTG).. −65°C to +150°C
DC Latch-Up Source
or Sink Current ................±300 mA
Junction Temperature (TJ)PDIP ........140°C

74ACQ646 Features

·Guaranteed simultaneous switching noise level and dynamic threshold performance
·Guaranteed pin-to-pin skew AC performance
·Independent registers for A and B busses
·Multiplexed real-time and stored data transfers
·300 mil slim dual-in-line package
·Outputs source/sink 24 mA
·Faster prop delays than the standard AC/ACT646

74ACQ646 Connection Diagram

74ACQ646  Connection Diagram

74ACQ646 datasheet

74ACQ646
PDF/DataSheet Download

  • Datasheet: 74ACQ646
  • File Size: 99511 KB
  • Manufacturer: FAIRCHILD [Fairchild Semiconductor]
  • Click here to Download

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