Cypress CY7C1643KV18-450BZI, QDR II+ synchronous SRAM, 144Mbit (8M x 18), 450 MHz parallel interface, 1.7V-1.9V supply, -40°C to 85°C industrial temperature, 165-FBGA tray.
| Parameter | Value |
|---|---|
| Memory type | Volatile |
| Mounting | Surface Mount |
| Supply voltage | 1.7V ~ 1.9V |
| Clock frequency | 450 MHz |
| Memory interface | Parallel |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Tray |
| Technology | SRAM - Synchronous, QDR II+ |
| Memory size | 144Mbit |
| Memory format | SRAM |
| Case | 165-LBGA |
| Memory organization | 8M x 18 |
The CY7C1643KV18-450BZI: 144Mbit synchronous SRAM using QDR II+ architecture, organized as 8M x 18. Clocks at 450 MHz on the parallel bus.
8M x 18 organization gives 18-bit-wide words. Compared to the 72Mbit CY7C25632KV18-400BZXI (4M x 18), this part doubles the depth at the same word width.
The CY7C2663KV18-450BZI is a pin-compatible functional second source at the same 450 MHz speed, 144Mbit density, 8M x 18 organization, and industrial temperature range, making it a drop-in alternate for dual-sourcing.
Yes, both parts share the same 165-FBGA footprint, 8M x 18 organization, 450 MHz clock, and 1.7V–1.9V supply, so the CY7C1643KV18-450BZI is a direct drop-in replacement without rewiring.