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AT89C51-RD2-CM — TQFP/LQFP-32/44 package (representative)
TQFP/LQFP-32/44
Representative of package type
Atmel

AT89C51-RD2-CM

Microcontroller · VQFP-44 · Microcontroller
Part Status: Obsolete In demand
Data last refreshed Jun 18, 2026
Manufacturer
Atmel
Mfr Part #
AT89C51-RD2-CM
Series
AT89C51RD2
Category
Microcontroller
Datasheet
View datasheet ↗
Availability & Pricing
ZDI Price$16.50
Last transacted2005-09-28
Market range$8.75 – $16.50
Sourcing channels11
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Live pricing on request · most quotes same business day

Product Attributes

Electrical & Parametric
Core8051
Program Memory64 KB Flash
Ram1 KB
Voltage Range2.7-5.5 V
Physical & Thermal
Package / CaseVQFP-44
Mounting TypeSurface Mount
SeriesAT89C51RD2
Operating Temperature-40°C ~ 85°C
Classification & Lifecycle
CategoryMicrocontroller
TypeMicrocontroller
Part StatusObsolete

8-bit 8051-compatible MCU, 64KB Flash, 256B RAM + 1KB XRAM

Availability & Sourcing

11 sources
SourceMfrQtyDate CodeConditionStatus
Market ATMEL 156 — — Available RFQ
Market ATMEL 675 09+ — Available RFQ
Market ATMEL 54 0322+ — Available RFQ
Market ATMEL 36 2 — Available RFQ
Market ATMEL 17 — — Available RFQ
Market ATMEL 8 02+ — Available RFQ
Market MICROCHIP 15000 25+ — Available RFQ
Market MICROCHIP 8712 — — Available RFQ
Market ATMEL 2200 — — Available RFQ
Market ATMEL 2000 — — Available RFQ
Market ATMEL 700 — — 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$16.50
Low$8.75
Last$16.50
Price as of2005-09-28

ZDI Transaction

Last ZDI price$16.50
As of2005-09-28
Active offers11

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

Part Activity

recent searches, RFQs & offers
AT89C51-RD2-CM viewed on the web · Web User
AT89C51-RD2-CM viewed on the web · Web User
AT89C51-RD2-CM viewed on the web · Web User
AT89C51-RD2-CM viewed on the web · Web User
AT89C51-RD2-CM viewed on the web · Web User
AT89C51-RD2-CM viewed on the web · Web User
AT89C51-RD2-CM viewed on the web · Web User
AT89C51-RD2-CM viewed on the web · Web User

Recent search and sourcing activity for AT89C51-RD2-CM.

Engineering FAQ

AT89C51-RD2-CM 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 AT89C51-RD2-CM?
Core: 8051; Program Memory: 64 KB Flash; Ram: 1 KB; Voltage Range: 2.7-5.5 V.
What package is AT89C51-RD2-CM supplied in?
AT89C51-RD2-CM is supplied in the VQFP-44 package, surface mount, rated -40°C ~ 85°C.
Can ZDI source AT89C51-RD2-CM 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

AT89C51-RD2-CM 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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