FULL PARAMETRICS
Full parametrics
Specifications10 params
- Technology
- EPROM - UV
- Access Time
- 45 ns
- Memory Size
- 256Kbit
- Memory Type
M27C256B-45XF1
STMicroelectronics·
Obsolete
EPROM - UV Memory IC 256Kbit Parallel 45 ns 28-CDIP Frit Seal with Window
Memory
256Kbit
Org
32K x 8
Type
EPROM
Speed
45 ns
Supply
4.75V ~ 5.25V
Sourcing parts forAerospace & DefenseIndustrialMedicalAutomotiveTelecomEnergy
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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
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Turnaround
Quote within 24 hours
Suppliers
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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.