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SN74LS645-1N — DIP-24/28/40 package (representative)
DIP-24/28/40
Representative of package type
Texas Instruments Inc

SN74LS645-1N

Bus Transceiver · PDIP-20 · Logic
In demand
Data last refreshed Jun 20, 2026
Manufacturer
Texas Instruments Inc
Mfr Part #
SN74LS645-1N
Series
74LS
Category
Bus Transceiver
Datasheet
View datasheet ↗
Availability & Pricing
Unit PriceRequest a Quote
Sourcing channels15
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Product Attributes

Electrical & Parametric
Supply Voltage4.75V ~ 5.25V
Logic Family74LS
Physical & Thermal
Package / CasePDIP-20
Mounting TypeThrough Hole
Series74LS
Operating Temperature0°C ~ 70°C
Classification & Lifecycle
CategoryBus Transceiver
TypeLogic

Octal bus transceiver, non-inverting, 3-state outputs, TTL

Availability & Sourcing

15 sources
SourceMfrQtyDate CodeConditionStatus
Market TEXASINSTR 136 — — Available RFQ
Market TEXASINSTR 99000 — — Available RFQ
Market TEXASINSTR 8168 — — Available RFQ
Market TEXASINSTR 2306 — — Available RFQ
Market TIN 592 — — Available RFQ
Market MMI 458 84 — Available RFQ
Market TEXAS INSTRUMEN 373 — — Available RFQ
Market TI 261 — — Available RFQ
Market T-I 233 — — Available RFQ
Market Texas Instrumen 169 — — Available RFQ
Market TEXAS INSTRUMEN 167 83 87 — Available RFQ
Market TI 142 — — Available RFQ
Market T.I. 137 — — Available RFQ
Market TI 134 82+ 82+ — Available RFQ
Market TEXAS INSTRUMEN 127 — — Available RFQ

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

Part Activity

recent searches, RFQs & offers
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SN74LS645-1N viewed on the web · Web User
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Recent search and sourcing activity for SN74LS645-1N.

Engineering FAQ

What are the key specifications of SN74LS645-1N?
Supply Voltage: 4.75V ~ 5.25V; Logic Family: 74LS.
What package is SN74LS645-1N supplied in?
SN74LS645-1N is supplied in the PDIP-20 package, through hole, rated 0°C ~ 70°C.
Can ZDI source SN74LS645-1N 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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