This means the memory controller can issue a read or write on every clock cycle without inserting dead cycles for bus-turnaround — a pipelined throughput advantage over standard synchronous SRAMs that insert one idle cycle when switching from read to write. The 167 MHz clock frequency and 3.4 ns access time set the timing budget for the memory interface: at 167 MHz the cycle time is 6 ns, so the 3.4 ns access leaves 2.6 ns of setup margin before the next clock edge, which is tight but workable with controlled impedance routing on a four-layer board. The 18-bit wide data bus (2M x 18 organization) suits applications needing parity or ECC alongside a 16-bit word — common in networking packet buffers, baseband processing, and FPGA cache memory where the extra two bits carry a byte parity or sideband tag. Supply voltage spans 3.135V to 3.6V, making it a straight drop onto a 3.3V rail with 5% tolerance. This limits the part to indoor, controlled-environment equipment — telecom central-office racks, test instrumentation, and office networking gear.
Infineon (formerly Cypress) no longer manufactures this part, and there is no official last-time-buy window open. The Tape & Reel suffix (AXCT) indicates the original production packaging — any stock found in distribution will carry date codes from before the EOL announcement. The base product number CY7C1462 points to the broader NoBL family, but a direct pin-compatible drop-in replacement has not been designated.
Package and footprint — 100-TQFP with 14x20 mm body
The 100-LQFP case code is dimensionally identical — both refer to a 1.4 mm thick, 0.5 mm pitch quad flat pack with an exposed die pad. Surface-mount assembly requires a standard QFP footprint with a centre thermal pad; the pad should be stitched to a ground plane with thermal vias if the application runs sustained read/write cycles above 100 MHz.