74ABT623

Octal transceiver with dual enable, non-inverting; (3-State)


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The 74ABT623 high performance BiCMOS device combines low static and dynamic power dissipation with high speed and high output drive.

The 74ABT623 is an octal transceiver featuring non-inverting 3-state bus compatible outputs in both send and receive directions. This octal bus transceiver is designed for asynchronous two-way communication between data buses.

The control function implementation allows maximum flexibility in timing. This device allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending upon the logic levels at the enable inputs (pins OEAB and OEBA). The enable inputs can be used to disable the device so that the buses are effectively isolated. The dual enable function configuration gives this transceiver the capability to store data by simultaneous enabling of pins OEAB and OEBA. Each output reinforces its input in this transceiver configuration. Thus, when both control inputs are enabled and all other data sources to the two sets of the bus lines are at high-impedance OFF-state, both sets of the bus lines will remain at their last states. The 8-bit codes appearing on the two sets of buses will be identical.

Features and benefits

  • Octal bidirectional bus interface
  • 3-state buffers
  • Power-up 3-state
  • Output capability: +64 mA and -32 mA
  • data inputs are disabled during 3-state mode
  • Latch-up protection exceeds 500 mA per JESD78B class II level A
  • ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V

Show functional diagram

Block diagram: 74ABT623D, 74ABT623DB, 74ABT623PW, 74LVC623AD, 74LVC623ADB, 74LVC623APW
Block diagram: 74ABT623D, 74ABT623DB, 74ABT623PW, 74LVC623AD, 74LVC623ADB, 74LVC623APW

Parametrics of this product

Type numberPackageNr of pinsPackage nameProduct statustpd(ns)VCC(V)FamilyNr of bitsPower dissipation considerationsLogic switching levelsOutput drive capabilityfmax(MHz)Description
74ABT623DSOT163-1
(SO20)		20SO20Production2.74.5 - 5.5ABT8mediumTTL-32/+64100octal transceiver with dual enable (3-state)
74ABT623DBSOT339-1
(SSOP20)		20SSOP20Production2.74.5 - 5.5ABT8mediumTTL-32/+64100octal transceiver with dual enable (3-state)
74ABT623PWSOT360-1
(TSSOP20)		20TSSOP20Production2.74.5 - 5.5ABT8mediumTTL-32/+64100octal transceiver with dual enable (3-state)

Package

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarking
74ABT623D74ABT623D,6029350 328 90602Volume productionSOT163-1
(SO20) 		Tube (Signetics)Standard Marking
74ABT623D74ABT623D,6239350 328 90623Volume productionSOT163-1
(SO20) 		Reel Pack, SMD, 13" (Signetics)Standard Marking
74ABT623DB74ABT623DB,1129350 665 40112Volume productionSOT339-1
(SSOP20) 		TubeStandard Marking
74ABT623DB74ABT623DB,1189350 665 40118Volume productionSOT339-1
(SSOP20) 		Reel Pack, SMD, 13"Standard Marking
74ABT623PW74ABT623PW,1129351 804 00112Volume productionSOT360-1
(TSSOP20) 		TubeStandard Marking
74ABT623PW74ABT623PW,1189351 804 00118Volume productionSOT360-1
(TSSOP20) 		Reel Pack, SMD, 13"Standard Marking

Outline drawing

Package VersionPackage NamePackage DescriptionReference CodesIssue Date
SOT339-1SSOP20plastic shrink small outline package; 20 leads; body width 5.3 mmMO-150 (JEDEC); 2003-02-19
SOT163-1SO20plastic small outline package; 20 leads; body width 7.5 mmMS-013 (JEDEC); 075E04 (IEC); 2003-02-19
SOT360-1TSSOP20plastic thin shrink small outline package; 20 leads; body width 4.4 mmMO-153 (JEDEC); 2003-02-19

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
74ABT623D74ABT623D,60274ABT623Dweek 4, 20041.337.518796992481203E811
74ABT623D74ABT623D,62374ABT623Dweek 4, 20041.337.518796992481203E811
74ABT623DB74ABT623DB,11274ABT623DBweek 12, 20051.337.518796992481203E811
74ABT623DB74ABT623DB,11874ABT623DBweek 12, 20051.337.518796992481203E811
74ABT623PW74ABT623PW,11274ABT623PWweek 7, 20051.337.518796992481203E811
74ABT623PW74ABT623PW,11874ABT623PWweek 7, 20051.337.518796992481203E811
Quality and reliability disclaimer

Quality and reliability disclaimer

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Documentation for this product

File nameTitleTypeFormatDate
74ABT623Octal transceiver with dual enable, non-inverting; (3-State)Data sheetpdf2010-02-15
AN203Test Fixtures for High Speed LogicApplication notepdf1998-04-02
AN223Ground and VCC Bounce of High-Speed Integrated CircuitsApplication notepdf2013-03-13
AN212Package lead inductance considerations in high-speed applicationsApplication notepdf2013-03-13
abt623abt623 IBIS modelIBIS modelibs2013-04-07
ABT_FUNCSELGDFunctional selection guide ABT familyOther typepdf2004-08-13
abtabt Spice modelSPICE modelzip2013-05-07

Ordering & availability

Type numberOrdering code (12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
74ABT623DB9350 665 4011274ABT623DB,112      Not available
74ABT623DB9350 665 4011874ABT623DB,118      Not available
74ABT623PW9351 804 0011274ABT623PW,112      Not available
74ABT623PW9351 804 0011874ABT623PW,118      Not available
74ABT623D9350 328 9060274ABT623D,602      Not available
74ABT623D9350 328 9062374ABT623D,623      Not available

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