Microchip Technology AT27C256R-12RC
IC EPROM 256KBIT PARALLEL 28SOIC
Answer first: this page is a purchasing reference for the exact part number AT27C256R-12RC from Microchip Technology. Use it to start datasheet, package, manufacturer and RFQ verification; do not treat page text as a live stock, price or lead-time promise.
Key Parameters
| Part Number | AT27C256R-12RC |
|---|---|
| Manufacturer | Microchip Technology |
| Category | Memory |
| package | 28-SOIC (0.342", 8.69mm Width) |
| series | - |
| packaging | Tube |
| product status | Obsolete |
| param 1 | Not Verified |
| param 2 | Non-Volatile |
| param 3 | EPROM |
| param 4 | EPROM - OTP |
| param 5 | 256Kbit |
| param 6 | 32K x 8 |
| param 7 | Parallel |
| param 8 | - |
| param 9 | - |
| param 10 | 120 ns |
| param 11 | 4.5V ~ 5.5V |
| param 12 | 0°C ~ 70°C (TC) |
| param 13 | - |
| param 14 | - |
| param 15 | Surface Mount |
| param 16 | 28-SOIC |
Parameters are provided for purchasing review. Confirm package, suffix, lifecycle status, datasheet revision and approved substitutes before ordering.
How to Verify AT27C256R-12RC Before Ordering
Datasheet and parameter checks
- Confirm the full manufacturer part number, not only a shortened search keyword.
- Compare package, pinout, dimensions, voltage or rating fields, temperature range and compliance wording against the released BOM.
- Use the manufacturer datasheet or drawing for electrical and mechanical limits before approving a substitute.
RFQ fields SENICO needs
- Send exact part number, manufacturer, quantity, target delivery date, destination and required packaging.
- State whether alternates are allowed, and list any date-code, certificate, traceability or customer AVL requirement.
- Keep exact stock, factory lead time and proposed alternatives in separate quote lanes.
For AT27C256R-12RC, SENICO recommends checking manufacturer marking, package, date code, requested quantity, approved vendor requirements and replacement risk before issuing a purchase order. If a supplier suggests an equivalent, record the changed fields and approval owner before comparing price.
We do not treat displayed data as a real-time stock or price commitment. The RFQ reply is the verified commercial reference.
Related buying guides: stock and lead-time verification, equivalent IC comparison, and BOM RFQ preparation.