Texas Instruments · Electronic Components
CD54HC640F3A
High Speed CMOS Logic Octal Inverting Bus Transceiver with 3-State Outputs
Part NumberCD54HC640F3A
ManufacturerTexas Instruments
LifecycleACTIVE
AvailabilityAvailable to order — request a quote
Specifications
Generic Part NumberCD54HC640
Pin Count20
EccnEAR99
Product FamilyGeneral-purpose transceivers
PackageCDIP
Defective Ppm691
Fit Failures In Time0.3
Mtbf Hours3080000000
Operating Temperature Range-55 to 125 °C
Supply Voltage2 to 6 V
Input TypeCMOS
Technology FamilyHC
Iohmax -7.8 mA
RatingMilitary
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is CD54HC640F3A available?
We can source CD54HC640F3A even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is CD54HC640F3A by Texas Instruments obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If CD54HC640F3A has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like CD54HC640F3A?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for CD54HC640F3A?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.