Infineon (Cypress) CY7C1393BV18-278BZC, 18Mbit synchronous DDR II SRAM, 278 MHz clock, 1.7-1.9V supply, 1M x 18 organization, 165-FBGA (13x15mm), 0 to 70°C.
| Parameter | Value |
|---|---|
| Memory type | Volatile |
| Mounting | Surface Mount |
| Supply voltage | 1.7V ~ 1.9V |
| Clock frequency | 278 MHz |
| Memory interface | Parallel |
| Operating temperature | 0°C ~ 70°C (TA) |
| Package | Tray |
| Technology | SRAM - Synchronous, DDR II |
| Memory size | 18Mbit |
| Memory format | SRAM |
| Case | 165-LBGA |
| Memory organization | 1M x 18 |
It clocks at 278 MHz, with data toggling on both clock edges.
For a procurement desk or a repair tech trying to bring a board back, the only path is the independent distribution market — surplus stock, new-old-stock, or broker-sourced material. If you are qualifying a replacement, you will need to compare the full timing and package parameters against a current-production DDR II SRAM.
No official replacement order code is listed for this specific variant. The base product number CY7C1393 may point to other density or speed grades, but those are not guaranteed direct replacements.