The memory is organized as 8M x 18 bits — 18-bit-wide data words are typical for parity or ECC alongside the payload. The separate read and write ports eliminate the bus-turnaround dead cycles that single-port SRAMs incur, so back-to-back transactions run at full line rate.
Cypress CY7C4122KV13-933FCXI QDR IV SRAM, 144Mbit, 933 MHz
MPNCY7C4122KV13-933FCXI
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Cypress CY7C4122KV13-933FCXI, QDR IV synchronous SRAM, 144Mbit (8M x 18), 933 MHz clock, 1.26V-1.34V supply, -40°C to 85°C, 361-FCBGA (21x21 mm), Tray.
$263.8467Ref. 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 | 1.26V ~ 1.34V |
| Clock frequency | 933 MHz |
| Memory interface | Parallel |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Tray |
| Technology | SRAM - Synchronous, QDR IV |
| Memory size | 144Mbit |
| Memory format | SRAM |
| Case | 361-BBGA, FCBGA |
| Memory organization | 8M x 18 |
Product details
Frequently asked questions
What is the voltage supply for CY7C4122KV13-933FCXI?
The supply range is 1.26 V to 1.34 V. A 1.2 V rail is below the minimum; you need a regulator that holds at least 1.26 V.
Does CY7C4122KV13-933FCXI work with 1.2V supply?
No — the minimum supply is 1.26 V. A 1.2 V rail will not guarantee proper operation.
What is a cross reference or replacement for CY7C4122KV13-933FCXI?
No official cross-reference or direct replacement is recorded in the Cypress documentation for this exact speed and density. For a pin-compatible alternative, check the QDR IV family with the same 8M x 18 organization and 1.26V-1.34V supply.
Where can I download the CY7C4122KV13-933FCXI datasheet?
The datasheet is available from the Cypress (now Infineon) website under the base product number CY7C4122. A PDF manual is also accessible through the distributor's document portal.