Synchronous FIFO for 5 V high-speed data buffering
The Cypress CY7C4241-10AXCT is a synchronous FIFO memory organized as 4K x 9 bits (36 Kbit total), designed for unidirectional data buffering at clock rates up to 100 MHz with an 8 ns access time. The device supports depth and width expansion for larger buffer arrays and includes programmable flag outputs for almost-full/almost-empty status.
For existing BOM lines requiring this exact order code, procurement must rely on independent distribution channels. Buyers should verify stock position before ordering.
The 100 MHz clock rate supports a 100 Mword/s synchronous transfer rate. The 8 ns access time from the clock edge sets the timing budget for the data bus.
4K x 9 organization and expansion capability
The 4K x 9 memory array provides 4,096 words of 9 bits each — the ninth bit is often used for parity or as a control/data flag in 8-bit-plus-parity systems. Depth expansion (cascading multiple devices for deeper buffers) and width expansion (wider data paths) are supported without external logic, simplifying board layout for larger FIFO arrays. The absence of FWFT (First-Word Fall-Through) means the first written word is not available on the output until the first read clock cycle after the write operation — a consideration for latency-sensitive designs.
5 V supply and commercial temperature — deployment constraints
Level translation is required for lower-voltage systems.