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18-bit universal bus transceiver (3-State)

The 74ALVCH16601 is an 18-bit universal transceiver featuring non-inverting 3-State bus compatible outputs in both send and receive directions. Data flow in each direction is controlled by output enable (OE AB and OE BA) latch enable (LEAB and LEBA ) , and clock (CPAB and CPBA) inputs. For A-to-B data flowthe device operates in the transparent mode when LEAB is High. When LEAB is Low, the A data is latched if CPAB is held at a High or Low logic level. If LEAB is Low, the A-bus data is stored in the latch/flip-flop on the Low-to-High transition of CPAB. When OE AB is Low, the outputs are active. When OE AB is High, the outputs are in the high-impedance state. The clocks can be controlled with the clock-enable inputs (CE BA /CE AB).

Data flow for B-to-A is similar to that of A-to-B but uses OE BA LEBA and CPBA.

To ensure the high impedance state during power up or power down, OE BA and OE AB should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking/current-sourcing capability of the driver. Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74ALVCH16601DGG 74ALVCH16601DGGY 935262546518 SOT364-1 Order product

Features and benefits

  • Complies with JEDEC standard no. 8-1A
  • CMOS low power consumption
  • Direct interface with TTL levels
  • MULTIBYTE™™ flow-through standard pin-out architecture
  • Low inductance multiple VCC and ground pins for minimum noise and ground bounce
  • Current drive ±24 mA at 3.0 V
  • All inputs have bus hold circuitry
  • Output drive capability 50 Ω transmission lines @ 85 °C



Type numberProduct statusVCC(A) (V)VCC(B) (V)Logic switching levelsOutput drive capability (mA)tpd (ns)No of bitsfmax (MHz)Power dissipation considerationsTamb (°C)Rth(j-a) (K/W)Package name
74ALVCH16601DGGProduction1.65 - 3.6n.a.TTL± 242.818150low-40~8593TSSOP56


Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
( 9352 625 46518 )
Reel 13" Q1/T1 in Drypack

The variants in the table below are discontinued. See the table Discontinuation information for more information.

Type numberOrderable part number, (Ordering code (12NC))StatusMarkingPackagePackage informationReflow-/Wave solderingPacking
( 9352 625 46512 )
Discontinued / End-of-lifeALVCH16601
Tube in Drypack

Discontinuation information

Type numberOrderable part numberOrdering codeLast time buy dateLast time delivery dateReplacement productStatusComments
74ALVCH16601DGG74ALVCH16601DGGS9352625465122021-12-312022-06-3074ALVCH16601DGGVersion withdrawal

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHS / RHFEFRIFRMTBF (hour)MSLMSL leadfree

The variants in the table below are discontinued. See the table Discontinuation information for more information.

Type numberOrderable part numberChemical contentRoHS / RHFEFRIFRMTBF (hour)MSLMSL leadfree
Quality and reliability disclaimer

Documentation (4)

File nameTitleTypeDate
74ALVCH1660118-bit universal bus transceiver; 3-stateData sheet2018-08-14
alvch16601alvch16601 IBIS modelIBIS model2013-04-07
74ALVCH16601DGG_Nexperia_Product_Reliability74ALVCH16601DGG Nexperia Product ReliabilityQuality document2022-01-19
SSOP-TSSOP-VSO-WAVEFootprint for wave solderingWave soldering2009-10-08


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
alvch16601alvch16601 IBIS modelIBIS model2013-04-07

Ordering, pricing & availability

Type numberOrderable part numberOrdering code (12NC)PackingPacking quantityBuy online
74ALVCH16601DGG74ALVCH16601DGGY935262546518Reel 13" Q1/T1 in Drypack- Order product


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