FULL PARAMETRICS
Full parametrics
Specifications14 params
- Speed
- 50MHz
- RAM Size
- 8.25K x 8
- Core Size
- 8-Bit
- Peripherals
C8051F581-IQ
Silicon Labs·
Last Time Buy
8051 C8051F58x Microcontroller IC 8-Bit 50MHz 128KB (128K x 8) FLASH 48-TQFP (7x7)
Core
8051
Core Size
8-Bit
Flash
128KB (128K x 8)
RAM
8.25K x 8
Speed
50MHz
Sourcing parts forAerospace & DefenseIndustrialMedicalAutomotiveTelecomEnergy
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.