Cypress CY7C1399BNL-15ZXC, 256Kbit (32K x 8) asynchronous SRAM, 15 ns access time, 3V–3.6V supply, parallel interface, 28-TSSOP (11.80mm width), commercial temperature 0°C to 70°C.
| Parameter | Value |
|---|---|
| Memory type | Volatile |
| Mounting | Surface Mount |
| Supply voltage | 3V ~ 3.6V |
| Memory interface | Parallel |
| Operating temperature | 0°C~70°C(TA) |
| Package | Tray |
| 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 CY7C1399BNL-15ZXC: This speed grade suits systems with moderate clock rates where address-to-data valid must complete within a single bus cycle. The asynchronous interface eliminates the need for a synchronising clock, simplifying the board-level timing closure work.
Cypress has classified the CY7C1399BNL-15ZXC as Obsolete.
The surface-mount package is supplied in Tray form.
Yes, Cypress has listed the CY7C1399BNL-15ZXC as Obsolete in its product lifecycle status.
Yes. The parallel interface is 3.3V-tolerant on the I/O pins, matching typical 3.3V logic families.
No official equivalent or cross-reference is recorded. A functionally equivalent part would be a 256 Kbit asynchronous SRAM with 32K x 8 organization, 15 ns access time, 3V–3.6V supply, and a 28-TSOP I footprint. Confirm pin compatibility from the respective datasheets before substituting.