CY7C1399BN-15VXAT 256Kbit Async SRAM, 15ns, 3.3V, 28-SOJ
MPNCY7C1399BN-15VXAT
Obsolete
Cypress CY7C1399BN-15VXAT: 256Kbit asynchronous SRAM, 32K×8 organization, 15ns access time, 3V–3.6V supply, parallel interface, 28-SOJ/BSOJ 7.62mm package, -40°C to 85°C, Tape & Reel.
$1.7400Ref. price · indicative, final on quote
StockContact for availability
MOQ1 pcs
- 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 | -40°C ~ 85°C (TA) |
| Package | Tape & Reel (TR) |
| Technology | SRAM - Asynchronous |
| Access time | 15 ns |
| Memory size | 256Kbit |
| Memory format | SRAM |
| Case | 28-BSOJ (0.300\", 7.62mm Width) |
| Memory organization | 32K x 8 |
| Write cycle time - word, page | 15ns |
Frequently asked questions
Can I drop this SRAM into a 3.3 V legacy controller without level-shifting?
Yes. The 3 V to 3.6 V operating range is centered on the 3.3 V rail. LVTTL/LVCMOS logic thresholds at 3.3 V are fully compatible — no Vcc translation layer is needed if the board rail is nominal 3.3 V.
What is the package, and does a 28-SOIC footprint match the 28-SOJ on my board?
The part ships in 28-SOJ/BSOJ at 7.62 mm body width. The 28-SOIC uses a Gull-wing lead form vs the SOJ's J-bend — pad geometry and reflow profile differ. A direct SOJ-to-SOIC swap without reworking the land pattern is not guaranteed; match the package to the board footprint, not just the body width.