FULL PARAMETRICS
Full parametrics
Specifications14 params
- Speed
- 25MHz
- RAM Size
- 4.25K x 8
- Core Size
- 8-Bit
- Peripherals
EFM8SB20F64G-B-QFP32R
Silicon Labs·
Obsolete
CIP-51 8051 Sleepy Bee Microcontroller IC 8-Bit 25MHz 64KB (64K x 8) FLASH 32-QFP (7x7)
Core
CIP-51 8051
Core Size
8-Bit
Flash
64KB (64K x 8)
RAM
4.25K x 8
Speed
25MHz
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.