800-219-9001 RFQ
AT89C2051-12SI — SOIC-W (18–28) package (representative)
SOIC-W (18–28)
Representative of package type
Atmel Corp

AT89C2051-12SI

Microcontroller · SOIC-20 · Microcontroller
Part Status: Obsolete In demand
Data last refreshed Jul 28, 2026
Manufacturer
Atmel Corp
Mfr Part #
AT89C2051-12SI
Series
AT89C2051
Category
Microcontroller
Datasheet
View datasheet ↗
Availability & Pricing
Unit PriceRequest a Quote
Sourcing channels1
Request a Quote → Check Live Availability

Live pricing on request · most quotes same business day

Product Attributes

Electrical & Parametric
Flash Size2 KB
Ram Size128 B
Speed12 MHz
I/O Pins15
Physical & Thermal
Package / CaseSOIC-20
Mounting TypeSurface Mount
SeriesAT89C2051
Operating Temperature-40°C ~ 85°C
Classification & Lifecycle
CategoryMicrocontroller
TypeMicrocontroller
Part StatusObsolete

8-bit 8051 MCU, 2KB Flash, 128B RAM, 15 I/O, 12 MHz

Availability & Sourcing

1 source
SourceMfrQtyDate CodeConditionStatus
Market Atmel 4 200630 — 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
AT89C2051-12SI viewed on the web · Web User
AT89C2051-12SI viewed on the web · Web User
AT89C2051-12SI viewed on the web · Web User
AT89C2051-12SI viewed on the web · Web User
AT89C2051-12SI viewed on the web · Web User
AT89C2051-12SI viewed on the web · Web User
AT89C2051-12SI viewed on the web · Web User
AT89C2051-12SI viewed on the web · Web User

Recent search and sourcing activity for AT89C2051-12SI.

Engineering FAQ

AT89C2051-12SI 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 are the key specifications of AT89C2051-12SI?
Flash Size: 2 KB; Ram Size: 128 B; Speed: 12 MHz; I/O Pins: 15.
What package is AT89C2051-12SI supplied in?
AT89C2051-12SI is supplied in the SOIC-20 package, surface mount, rated -40°C ~ 85°C.
Can ZDI source AT89C2051-12SI 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

AT89C2051-12SI 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.

Related Parts

from Atmel Corp

Need AT89C2051-12SI?

ZD Integrated Circuits sources hard-to-find, obsolete, and excess components worldwide — pricing and availability, fast.

Request a Quote →