Cypress CY7C1399B-12ZXC 256Kbit Async SRAM, 12ns, 3.3V, 28-TSSOP
Cypress CY7C1399B-12ZXC, 256Kbit async SRAM organized 32Kx8, 12ns access time, 3V-3.6V supply, 28-TSSOP (0.465inch 11.80mm), 0°C to 70°C, tray.
- 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
- Date & lot codes on quoteStated per line before you commit; label photos on request.
- MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
- PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.
Specifications
| Parameter | Value |
|---|---|
| Memory type | Volatile |
| Mounting type | Surface Mount |
| Voltage | 3V ~ 3.6V |
| Memory interface | Parallel |
| Operating temperature | 0°C ~ 70°C (TA) |
| Package | Tray |
| Technology | SRAM - Asynchronous |
| Access time | 12 ns |
| Memory size | 256Kbit |
| Memory format | SRAM |
| Case | 28-TSSOP (0.465\", 11.80mm Width) |
| Memory organization | 32K x 8 |
| Write cycle time - word, page | 12ns |
Frequently asked questions
Does the 3V-3.6V window on the CY7C1399B-12ZXC share enough headroom to avoid brown-out on a shared 3.3V rail during write bursts?
The 3V-3.6V range sits within the standard 3.3V tolerance band and does not impose unusual headroom demands beyond its 3.0V minimum. Brown-out risk during write bursts depends on the overall rail regulation under load — if your shared rail sags below 3.0V, the problem is upstream of the SRAM and decoupling or rail sizing at the board level is the fix, not a different SRAM spec.
Is the CY7C1399B-12ZXC still franchised-channel stock or fully in the independent market?
Eol_hot means no franchised stock — the available pool is independent excess and broker channel only. For traceable supply, request lot traceability and authenticity screening if part provenance is a concern for your application.