The Cypress CY7C1550KV18-400BZC is a 72 Mbit synchronous SRAM organized 2M × 36, clocked at 400 MHz with a DDR II+ interface. The 1.7 V to 1.9 V core supply keeps I/O compatible with low-voltage logic families.
Cypress CY7C1550KV18-400BZC 72Mbit DDR II+ SRAM, 400 MHz
MPNCY7C1550KV18-400BZC
End of Life
Cypress CY7C1550KV18-400BZC, 72Mbit synchronous DDR II+ SRAM, 400 MHz clock, 2M×36 parallel organization, 1.7–1.9 V supply, 165-LBGA/FBGA (13×15 mm) tray, 0 °C to 70 °C commercial grade.
$183.0150Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Memory type | Volatile |
| Mounting | Surface Mount |
| Supply voltage | 1.7V ~ 1.9V |
| Clock frequency | 400 MHz |
| Memory interface | Parallel |
| Operating temperature | 0°C ~ 70°C (TA) |
| Package | Tray |
| Technology | SRAM - Synchronous, DDR II+ |
| Memory size | 72Mbit |
| Memory format | SRAM |
| Case | 165-LBGA |
| Memory organization | 2M x 36 |
Product details
Frequently asked questions
What's the closest functional second-source for CY7C1550KV18-400BZC?
The CY7C1520KV18-333BZXC is the closest functional peer — same 72 Mbit density, 2M × 36 organization, 1.7 V supply, and 165-FBGA footprint — but at 333 MHz instead of 400 MHz. It drops into the same board layout without rewiring, but the lower clock rate may not meet your throughput requirement. There is no official second-source alternate; these are Infineon/Cypress parts.
Will CY7C1550KV18-400BZC drop into a panel specified around CY7C1520KV18-333BZXC?
Yes — both parts share the same 165-FBGA (13 × 15 mm) footprint, supply voltage range, and pinout. No board rework is needed. The only difference is the 400 MHz vs 333 MHz clock speed; verify timing closure at the higher rate before swapping.