36 Mbit synchronous SRAM with 133 MHz pipeline
It runs on a 133 MHz clock with a 6.5 ns access time, making it a fit for high-bandwidth data buffers in networking line cards, telecom switches, and industrial controllers that need a wide 72-bit word for 64-bit data plus ECC or parity.
2.5 V supply — plan the rail tolerance
The supply range is 2.375 V to 2.625 V, a tight 250 mV window around the nominal 2.5 V rail. Any droop below 2.375 V during a read burst will corrupt the output data latch. The board's 2.5 V regulator needs to stay within ±5 % under load transients; a 3.3 V LDO feeding this part is not an option without an intermediate regulator.
The CY7C1447AV25-133BGI is officially obsolete per the manufacturer's lifecycle status.
