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ST90T40-ZC6 — DIP-24/28/40 package (representative)
DIP-24/28/40
Representative of package type
STMicroelectronics

ST90T40-ZC6

Microcontroller · SDIP42 · Microcontroller
Part Status: Obsolete
Data last refreshed Jun 18, 2026
Manufacturer
STMicroelectronics
Mfr Part #
ST90T40-ZC6
Series
ST90T40
Category
Microcontroller
Datasheet
View datasheet ↗
Availability & Pricing
ZDI Price$10.40
Last transacted1998-06-08
Market range$10.40 – $12.50
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Live pricing on request · most quotes same business day

Specifications

Physical & Thermal
Package / CaseSDIP42
Mounting TypeThrough Hole
SeriesST90T40
Classification & Lifecycle
CategoryMicrocontroller
TypeMicrocontroller
Part StatusObsolete

ST9 family 8/16-bit MCU, ROM/EPROM, 256 bytes RAM

Price History & Market Reference

Market Price Range

High$12.50
Low$10.40
Last$10.40
Price as of1998-06-08

ZDI Transaction

Last ZDI price$10.40
As of1998-06-08

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

Part Activity

recent searches, RFQs & offers
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ST90T40-ZC6 viewed on the web · Web User
ST90T40-ZC6 viewed on the web · Web User
ST90T40-ZC6 viewed on the web · Web User
ST90T40-ZC6 searched via the web · Web User
ST90T40-ZC6 searched via the web · Web User

Recent search and sourcing activity for ST90T40-ZC6.

Engineering FAQ

ST90T40-ZC6 is marked Obsolete — how does ZDI assure authenticity?
Obsolete and end-of-life parts carry elevated counterfeit risk, which is exactly why ZDI routes every lot through the full EQuality Process™ — validation, QI-1 and QI-2/camera inspection, RoHS verification, bake and bag-and-tag, and QI-3 final inspection — with source-country supplier vetting and full lot traceability before release.
What package is ST90T40-ZC6 supplied in?
ST90T40-ZC6 is supplied in the SDIP42 package, through hole.
Can ZDI source ST90T40-ZC6 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

ST90T40-ZC6 is marked Obsolete. Obsolete and end-of-life parts carry elevated counterfeit risk — exactly why ZDI routes them through the full EQuality Process™ with source-country supplier vetting, inspection, and traceability.

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