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Infineon Technologies CY7C1312KV18-300BZXCT — Memory (DRAM / SRAM / Flash / EEPROM)

CY7C1312KV18-300BZXCT QDR II SRAM, 18 Mbit, 300 MHz

MPNCY7C1312KV18-300BZXCT
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Cypress CY7C1312KV18-300BZXCT, 18 Mbit synchronous QDR II SRAM, 300 MHz parallel interface, 1M x 18 organization, 1.7–1.9 V supply, 0–70 °C, 165-FBGA (13x15), Tape & Reel.

$37.4675Ref. price · indicative, final on quote
Infineon Technologies CY7C1312KV18-300BZXCT datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

CY7C1312KV18-300BZXCT specifications
ParameterValue
Memory typeVolatile
MountingSurface Mount
Supply voltage1.7V ~ 1.9V
Clock frequency300 MHz
Memory interfaceParallel
Operating temperature0°C~70°C(TA)
PackageTape & Reel (TR)
TechnologySRAM - Synchronous, QDR II
Memory size18Mbit
Memory formatSRAM
Case165-LBGA
Memory organization1M x 18

Product details

300 MHz QDR II SRAM for high-throughput buffer applications

The Cypress CY7C1312KV18-300BZXCT is an 18 Mbit synchronous QDR II SRAM organized as 1M x 18 bits, clocked at 300 MHz over a parallel interface. QDR II architecture provides separate read and write data ports, eliminating bus-turnaround dead cycles and sustaining back-to-back throughput at the full clock rate. The 165-ball FBGA package (13x15 mm body) requires careful PCB layout for signal integrity at 300 MHz, including matched trace lengths and adequate decoupling on the 1.8 V rail.

300 MHz clock — timing margin and signal-integrity budget

At 300 MHz the clock period is roughly 3.3 ns. The QDR II interface uses source-synchronous clocking with a separate read clock and write clock, so the timing budget is shared between the SRAM output hold and the FPGA or ASIC input setup. Board-level simulation should verify that the flight time and crosstalk on the 18-bit data bus stay within the datasheet's tCO and tOH specs.

Frequently asked questions

What is the closest pin-compatible alternative to CY7C1312KV18-300BZXCT?

The CY7C1312KV18 series includes density and speed variants within the same 165-FBGA footprint, but a drop-in replacement from another manufacturer is not confirmed. Verify compatibility with the original design's timing and organization before substituting.

Can I replace CY7C1312KV18-300BZXCT with a QDR II+ SRAM?

QDR II+ is a later-generation architecture with higher clock rates and different timing parameters. While the package and pinout may be similar within the same density family, the electrical interface and control-logic handshake differ. A direct replacement would require a board respin and FPGA timing revalidation. Stick with the QDR II variant unless you are planning a full design revision.