100 MHz synchronous SRAM for industrial timing
The CY7C1361C-100AXET is a 9Mbit synchronous SRAM organized as 256K x 36 bits, clocked at 100 MHz with an 8.5 ns access time from clock edge to data valid. The 36-bit word width is a natural fit for 32-bit data buses plus parity or ECC coverage without external byte-lane muxing. Supply range is 3.135V to 3.6V, matching the 3.3V nominal rail common to FPGAs and ASIC memory controllers. The synchronous interface simplifies timing closure — the controller only needs to meet setup/hold at the clock edge rather than manage asynchronous address-to-output delays.
Temperature grade and board environment
The 100-TQFP package (14x20 mm body) has a 0.50 mm pitch — a 4-layer PCB is recommended for signal fan-out and a solid ground plane under the core supply. The tape-and-reel delivery indicates the part is intended for automated pick-and-place. Standard MSL for this package family is MSL-3; if the moisture-barrier bag is compromised, a 48-hour bake at 125°C before reflow is the typical recovery step.
Infineon lists the CY7C1361C-100AXET as Active. For BOM planning, the base product number CY7C1361 covers multiple speed and temperature variants. If the 100 MHz industrial grade is the target, confirm the full suffix — the -100AXET is the tape-and-reel version of the -100AXE tray part.