FULL PARAMETRICS
Full parametrics
Specifications1 params
- Lifecycle Status
- Obsolete
AT89C4051-24SI
Microchip Technology·
Obsolete
8051 89C Microcontroller IC 8-Bit 24MHz 4KB (4K x 8) FLASH 20-SOIC
Category
Microcontrollers
Status
Obsolete
Manufacturer
Microchip Technology
Quick RFQ — Single Part
Sourcing parts forAerospace & DefenseIndustrialMedicalAutomotiveTelecomEnergy
Related Parts
More from Microcontrollers
Select parts to bundle into a single RFQ
We stand behind every part we quote
IC Parts Hub sources verified, traceable parts from a global network of vetted suppliers. When your production line depends on a part that's been discontinued for a decade, you need a partner who knows where to look.
Location
US-Based & Operated
Turnaround
Quote within 24 hours
Suppliers
Verified Sources Only
WHY IC PARTS
Built for procurement engineers.
01 / SPECIALTY
Obsolete & Hard-to-Find
Decades of experience sourcing parts that other distributors no longer carry — EOL ICs, last-time-buy stock, and parts in active production allocation.
02 / SPEED
Fast Quote Turnaround
A real sourcing engineer reviews every RFQ and most responses go out same business day — not a templated reply, a real quote with provenance.
03 / QUALITY
Verified Supplier Network
Every part is sourced through vetted channels with documented chain-of-custody. Test reports and date codes available on request.
04 / IDENTITY
US-Based, US-Operated
Headquartered in New Jersey with a US-based sourcing team. No outsourced reps, no offshore handoffs — just a phone number that goes to a person who knows ICs.