The CY7C1352B-100AC: Availability and pricing are lot-specific and confirmed at RFQ — no stock-holding claim is made here.
256K x 18 synchronous SDR SRAM — 100 MHz, 5 ns access
The CY7C1352B-100AC is a 4.5 Mbit synchronous SRAM organized as 256K words by 18 bits. The 100 MHz clock and 5 ns access time place it in the mid-speed synchronous SRAM class, suited for cache, buffer, and look-up table applications that need deterministic read/write latency without the refresh overhead of DRAM. The parallel memory interface and single-data-rate (SDR) pipeline mean the address is latched on the rising clock edge and data appears after the programmed CAS latency — a familiar flow for designers migrating from asynchronous SRAM to a clocked bus.
Supply rails and temperature envelope
Operates from a 3.135 V to 3.465 V core supply — a narrow 3.3 V ±5 % window that demands a clean rail. The commercial temperature grade (0°C to 70°C) limits this variant to indoor, controlled-environment equipment; the industrial or automotive grades in the same family use different suffix codes. Housed in a 100-lead LQFP (also specified as 100-TQFP, 14x20 mm body). The fine-pitch (0.5 mm) quad flat pack requires careful PCB land pattern design and a controlled soldering profile — standard for this package class.