Cypress CY7C1399B-15ZC, 256Kbit asynchronous SRAM, 15 ns access time, 3.3 V supply, 32K x 8 organization, 28-TSSOP (0.465 inch width), 0°C to 70°C commercial grade, end-of-life lifecycle.
| Parameter | Value |
|---|---|
| Memory type | Volatile |
| Mounting | Surface Mount |
| Supply voltage | 3V ~ 3.6V |
| Memory interface | Parallel |
| Operating temperature | 0°C ~ 70°C (TA) |
| Package | Bag |
| Technology | SRAM - Asynchronous |
| Access time | 15 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 | 15ns |
The CY7C1399B-15ZC: 256Kbit asynchronous SRAM organized as 32K x 8 bits, with 15 ns access time and 3V to 3.6V supply range. Parallel memory interface, 28-TSSOP surface-mount package (0.465 inch width).
15 ns access time sets address-to-data valid window on read cycle. Write cycle time matches at 15 ns at 3V to 3.6V.
The CY7C1399B-15ZC uses a 28-TSOP I body at 0.465 inch (11.80 mm) width. The spec table lists this as both 28-TSSOP and 28-TSOP I — same pinout, same footprint, drop-in for boards designed around either designation.