16-bit transceiver/register with dual enable; 3-state

The 74ALVCH16652 consists of 16 non-inverting bus transceiver circuits with 3-state outputs, D-type flip-flops and control circuitry arranged for multiplexed transmission of data directly from the data bus or from the internal storage registers.

Data on the ‘A’ or ‘B’, or both buses, will be stored in the internal registers, at the appropriate clock inputs (nCPAB or nCPBA) regardless of the select inputs (nSAB and nSBA) or output enable (nOEAB and nOEBA) control inputs.

Depending on the select inputs nSAB and nSBA data can directly go from input to output (real-time mode) or data can be controlled by the clock (storage mode), when OE inputs permit this operating mode.

The output enable inputs nOEAB and nOEBA determine the operation mode of the transceiver. When nOEAB is LOW, no data transmission from nBn to nAn is possible and when nOEBA is HIGH, no data transmission from nBn to nAn is possible.

When nSAB and nSBA are in the real-time transfer mode, it is also possible to store data without using the internal D-type flip-flops by simultaneously enabling nOEAB and nOEBA. In this configuration each output reinforces its input.

Active bus hold circuitry is provided to hold unused or floating data inputs at a valid logic level.

Features and benefits

  • Wide supply voltage range of 1.2 V to 3.6 V
  • CMOS low power consumption
  • Direct interface with TTL levels
  • Current drive ±24 mA at VCC = 3.0 V.
  • MULTIBYTE flow-through standard pin-out architecture
  • Low inductance multiple VCC and GND pins for minimum noise and ground bounce
  • All data inputs have bushold
  • Output drive capability 50 Ω transmission lines at 85 °C
  • Complies with JEDEC standards:
    • JESD8-5 (2.3 V to 2.7 V)
    • JESD8B/JESD36 (2.7 V to 3.6 V)
  • ESD protection:
    • HBM ANSI/ESDA/JEDEC JS-001 exceeds 2000 V
    • CDM JESD22-C101E exceeds 1000 V


Type numberProduct statusVCC(A) (V)VCC(B) (V)Logic switching levelsOutput drive capabilitytpd (ns)No of bitsfmax (MHz)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Ψth(j-top) (K/W)Package name
74ALVCH16652DGGProduction1.65 - 3.6n.a.TTL+/- 242.616150low-40~859321.0TSSOP56


Type numberPackagePackage informationReflow-/Wave solderingPackingStatusMarkingOrderable part number, (Ordering code (12NC))
Tube in DrypackActiveALVCH1665274ALVCH16652DGGS
( 9352 627 99512 )
Reel 13" Q1/T1 in DrypackActiveALVCH1665274ALVCH16652DGGY
( 9352 627 99518 )

Discontinuation information

Type numberOrderable part number, (Ordering code (12NC))Last time buy dateLast time delivery dateReplacement productStatusComments

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFLeadfree conversion dateEFRIFRMTBF (hour)MSLMSL leadfree
74ALVCH16652DGG74ALVCH16652DGGS74ALVCH16652DGGAlways Pb-free123.83.872.58E822
74ALVCH16652DGG74ALVCH16652DGGY74ALVCH16652DGGAlways Pb-free123.83.872.58E822
Quality and reliability disclaimer

Documentation (4)

File nameTitleTypeDate
74ALVCH1665216-bit transceiver/register with dual enable; 3-stateData sheet2018-09-12
alvch16652alvch16652 IBIS modelIBIS model2013-04-07
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08
SOT364-1plastic, thin shrink small outline package; 56 leads; 0.5 mm pitch; 14 mm x 6.1 mm x 1.2 mm bodyPackage information2020-04-21


If you are in need of design/technical support, let us know and fill in the answer form, we'll get back to you shortly.


File nameTitleTypeDate
alvch16652alvch16652 IBIS modelIBIS model2013-04-07

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