What the 100 MHz clock and 256K x 36 organization mean for your datapath
The CY7C1361C-100BZXE is a 9 Mbit synchronous SRAM organized 256K words by 36 bits wide, clocked at 100 MHz — the 36-bit word width matches the datapath of many network processors and DSPs without needing to mux two 18-bit devices, saving board space and reducing the load on the bus. The 8.5 ns access time at 100 MHz means the data appears on the bus within one clock cycle after the address is latched — zero-wait-state reads are achievable with most 100 MHz bus masters, keeping the pipeline full in a high-throughput buffer application.
Temperature grade and package — where this part survives
Rated for -40°C to +125°C (TA) ambient — this is the full industrial temperature band, so the part handles outdoor telecom cabinets in summer and engine-bay electronics where the soak temperature hits the upper end. Housed in a 165-FBGA (13x15 mm) package — the 1.0 mm ball pitch is fine-pitch but routable on a 4-layer PCB with micro-vias; the 13x15 mm footprint is compact enough for a mezzanine card or line-card blade where real estate is tight. Single 3.135V to 3.6V supply rail — a standard 3.3V rail with ±5% tolerance covers the entire range, so no secondary regulator or LDO is needed for the SRAM core.
Lifecycle and sourcing posture
ROHS3 compliant — no exemptions for lead in solder or other restricted substances, so it passes the material declaration requirements for new EU and UKCA shipments without a waiver.