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87C654-4N40 — DIP-24/28/40 package (representative)
DIP-24/28/40
Representative of package type
Philips Semiconductors

87C654-4N40

Microcontroller · DIP-40 · Microcontroller
Part Status: Obsolete
Data last refreshed Jul 23, 2026
Manufacturer
Philips Semiconductors
Mfr Part #
87C654-4N40
Series
87C654
Category
Microcontroller
Datasheet
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Availability & Pricing
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Product Attributes

Electrical & Parametric
Core80C51
Program Memory16KB EPROM
Data Ram256B
Speed16MHz
Physical & Thermal
Package / CaseDIP-40
Mounting TypeThrough Hole
Series87C654
Operating Temperature0°C ~ 70°C
Classification & Lifecycle
CategoryMicrocontroller
TypeMicrocontroller
Part StatusObsolete

8-bit 8051 MCU, 16KB EPROM, 256B RAM, 32 I/O, 6 interrupts

Part Activity

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Engineering FAQ

87C654-4N40 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 87C654-4N40?
Core: 80C51; Program Memory: 16KB EPROM; Data Ram: 256B; Speed: 16MHz.
What package is 87C654-4N40 supplied in?
87C654-4N40 is supplied in the DIP-40 package, through hole, rated 0°C ~ 70°C.
Can ZDI source 87C654-4N40 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

87C654-4N40 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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