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74LVTH646FAIRCHILDN/a1500avaiLow Voltage Octal Transceiver/Register with 3-STATE Outputs


74LVTH646 ,Low Voltage Octal Transceiver/Register with 3-STATE Outputsapplications, but with the capability to provide a TTL

74LVTH646
Low Voltage Octal Transceiver/Register with 3-STATE Outputs
74LVTH646 Low Voltage Octal Transceiver/Register with 3-STATE Outputs November 1999 Revised November 2000 74LVTH646 Low Voltage Octal Transceiver/Register with 3-STATE Outputs General Description Features The LVTH646 consists of registered bus transceiver cir-Input and output interface capability to systems at cuits, D-type flip-flops, and control circuitry providing multi- 5V V CC plexed transmission of data directly from the input bus or Bushold data inputs eliminate the need for external from the internal storage registers. Data on the A or B bus pull-up resistors to hold unused inputs will be loaded into the respective registers on the LOW-to- Live insertion/extraction permitted HIGH transition of the appropriate clock pin (CPAB or Power Up/Down high impedance provides glitch-free CPBA). (See Functional Description) bus loading The LVTH646 data inputs include bushold, eliminating the Outputs source/sink −32 mA/+64 mA need for external pull-up resistors to hold unused inputs. Functionally compatible with the 74 series 646 The bus transceivers are designed for low-voltage (3.3V) V applications, but with the capability to provide a TTLLatch-up performance exceeds 500 mA CC interface to a 5V environment. The LVTH646 is fabricatedESD performance: with an advanced BiCMOS technology to achieve high Human-body model > 2000V speed operation similar to 5V ABT while maintaining low Machine model > 200V power dissipation. Charged-device model > 1000V Ordering Code: Order Number Package Number Package Description 74LVTH646WM M24B 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 74LVTH646MTC MTC24 24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Devices also available in Tape and Reel. Specify by appending letter suffix “X” to the ordering code. Logic Symbols IEEE/IEC © 2000 DS012017
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