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AT89S2051 — SOIC-W (18–28) package (representative)
SOIC-W (18–28)
Representative of package type
Atmel

AT89S2051

Microcontroller · 20-PDIP, 20-SOIC · Microcontroller
Part Status: NRND
Data last refreshed Jun 18, 2026
Manufacturer
Atmel
Mfr Part #
AT89S2051
Series
AT89S
Category
Microcontroller
Datasheet
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Availability & Pricing
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Product Attributes

Electrical & Parametric
Flash2KB
Ram256B
Speed24MHz
Voltage2.7-5.5V
Physical & Thermal
Package / Case20-PDIP, 20-SOIC
SeriesAT89S
Operating Temperature-40°C ~ 85°C
Classification & Lifecycle
CategoryMicrocontroller
TypeMicrocontroller
Part StatusNRND

8-bit 8051 MCU, 2KB Flash, 256B RAM, 15 I/O, 24 MHz

Part Activity

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AT89S2051 viewed on the web · Web User
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Engineering FAQ

What are the key specifications of AT89S2051?
Flash: 2KB; Ram: 256B; Speed: 24MHz; Voltage: 2.7-5.5V.
What package is AT89S2051 supplied in?
AT89S2051 is supplied in the 20-PDIP, 20-SOIC package, rated -40°C ~ 85°C.
Can ZDI source AT89S2051 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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