QDR II SRAM — 36 Mbit at 333 MHz
The CY7C1415KV18-333BZC is a 36 Mbit QDR II synchronous SRAM organized as 1M x 36, clocked at 333 MHz. It uses a parallel interface and operates from a 1.7 V to 1.9 V core supply. This is a volatile SRAM — data is retained only while power is applied. The QDR II architecture delivers two data words per clock cycle on independent read and write ports, effectively doubling the data throughput compared to a single-port device at the same clock rate.
The 0.80 mm ball pitch demands a controlled-impedance PCB stack-up for the high-speed QDR II bus — the 333 MHz clock rate means trace-length matching on the data and address lines is non-negotiable to maintain setup-and-hold margins. The 1.7 V to 1.9 V supply rail is tighter than a standard 1.8 V ±5 % — the board's VRM must hold regulation within 100 mV across load transients.
Lifecycle reality — obsolete, sourced to order
Infineon lists the CY7C1415KV18-333BZC as Obsolete. No official successor part number is published. This means the manufacturer no longer produces it, and no pin-compatible drop-in replacement is designated. We source it against an RFQ — each lot is verified for authenticity and date-code traceability before it ships.