Data sheet acquired from Harris Semiconductor
SCHS293 This data sheet is applicable to the CD74AC646 and CD74ACT646. The CD54AC646, CD54/74AC648, CD54ACT646, and
CD54/74ACT648 were not acquired from Harris Semiconductor. PACKAGE OPTION ADDENDUM www.ti.com 15-Oct-2015 PACKAGING INFORMATION
Orderable Device Status
(1) Package Type Package Pins Package
Drawing
Qty Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Op Temp (В°C) Device Marking
(4/5) CD74AC646M ACTIVE SOIC DW 24 25 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -55 to 125 AC646M CD74AC646M96 ACTIVE SOIC DW 24 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -55 to 125 AC646M CD74AC646MG4 ACTIVE SOIC DW 24 25 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -55 to 125 AC646M CD74ACT646M ACTIVE SOIC DW 24 25 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -55 to 125 ACT646M CD74ACT646M96 ACTIVE SOIC DW 24 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -55 to 125 ACT646M (1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan -The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) -please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. …
