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SN74HC640N — DIP-24/28/40 package (representative)
DIP-24/28/40
Representative of package type
Texas Instruments Inc

SN74HC640N

Bus Transceiver · PDIP-20 · Logic
Part Status: Active In demand
Data last refreshed Jun 20, 2026
Manufacturer
Texas Instruments Inc
Mfr Part #
SN74HC640N
Series
SN74HC
Category
Bus Transceiver
Datasheet
View datasheet ↗
Availability & Pricing
ZDI Price$0.5
Last transacted1999-09-22
Market range$0.5
Sourcing channels16
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Product Attributes

Electrical & Parametric
Logic Family74HC
Voltage Range2 V ~ 6 V
Io Type3-State
Physical & Thermal
Package / CasePDIP-20
Mounting TypeThrough Hole
SeriesSN74HC
Operating Temperature-40°C ~ 85°C
Classification & Lifecycle
CategoryBus Transceiver
TypeLogic
Part StatusActive

Octal inverting bus transceiver, 3-state outputs, 2 V to 6 V, DIP-20

Environmental & Export Classifications

RoHS Status
RoHS Compliant

Availability & Sourcing

16 sources
SourceMfrQtyDate CodeConditionStatus
Market TI 921 19 — Available RFQ
Market TEXAS INSTRUMEN 260 — — Available RFQ
Market Texas Instrumen 194 8327 — Available RFQ
Market T-I 164 — — Available RFQ
Market Texas Instrumen 130 — — Available RFQ
Market TEXAS INSTRUMEN 98 — — Available RFQ
Market TI8340 86 — — Available RFQ
Market TI 65 93+ — Available RFQ
Market Texas Instrumen 40 03+ — Available RFQ
Market TI 39 1999 — Available RFQ
Market TEXAS IN 29 — — Available RFQ
Market TI 28 — — Available RFQ
Market TI 8 — — Available RFQ
Market TI 5 8745 — Available RFQ
Market TI 6000 25+ — Available RFQ
Market Texas 61934 — — Available RFQ

ZDI Stock — in our warehouse · Market — offers available through our sourcing network · Live — recent offers from our sourcing network.

Price History & Market Reference

Market Price Range

High$0.5
Low$0.5
Last$0.5
Price as of1999-09-22

ZDI Transaction

Last ZDI price$0.5
As of1999-09-22
Active offers16

Pricing reflects ZDI's transaction and market-reference data. Firm pricing confirmed per RFQ against current availability.

Part Activity

recent searches, RFQs & offers
SN74HC640N viewed on the web · Web User
SN74HC640N viewed on the web · Web User
SN74HC640N viewed on the web · Web User
SN74HC640N viewed on the web · Web User
SN74HC640N viewed on the web · Web User
SN74HC640N viewed on the web · Web User
SN74HC640N searched via the web · Web User
SN74HC640N searched via the web · Web User

Recent search and sourcing activity for SN74HC640N.

Engineering FAQ

What are the key specifications of SN74HC640N?
Logic Family: 74HC; Voltage Range: 2 V ~ 6 V; Io Type: 3-State.
What package is SN74HC640N supplied in?
SN74HC640N is supplied in the PDIP-20 package, through hole, rated -40°C ~ 85°C.
Can ZDI source SN74HC640N beyond the quantities shown?
Yes — ZD Integrated Circuits specializes in sourcing hard-to-find, obsolete, and excess electronic components through its global network, with counterfeit-avoidance inspection on every lot. Submit an RFQ with your target quantity for availability and pricing.

Documents & Media

Quality & Counterfeit Avoidance

ISO 9001 ERAI Member ESD Certified GIDEP Participant ZDI EQuality Process CAGE Code 1V8K2

ZD Integrated Circuits operates an ISO 9001-certified quality system incorporating JEDEC-standard process-control elements. In an era of global sourcing and internet procurement, standards compliance alone no longer assures component authenticity — so ZDI pioneered a multi-layered counterfeit-avoidance program: supplier analysis at the source-country level, detailed component analysis, defined inspection standards for all incoming devices, and stringent supplier rating and review. These programs let ZDI guarantee the integrity and the source of every component it ships.

Every lot moves through ZDI's EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with Quality-Manager disposition before release. Nonconforming material is quarantined; conforming material is warehoused or shipped.

✓Multi-stage EQuality Process™ inspection (QI-1 · QI-2/camera · QI-3)
✓Source-country supplier analysis, rating & review
✓Incoming inspection, RoHS verification, bake, full lot traceability
✓ESD-controlled handling · authentic parts guaranteed

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