CY7C342B-30RI – A 100% USER CONFIGURABLE 128-MACROCELL MAX EPLD.

CY7C342B-30RI, manufactured by the Cypress Semiconductor Corporation, is a 128-Macrocell MAX EPLD. Which implies that CY7C342B-30RI is an Erasable Programmable Logic Device (EPLD) and uses CMOS EPROM cells to configure logic functions within the device. The key highlight of the CY7C342B is the inherent architecture MAX, which is 100% user configurable and therefore, allows the user to accommodate a host of independent logic functions in the device.

The Structural Details

CY7C342B-30RI comprises of eight logic array blocks (LAB), where each block consists of a macrocell array containing 16 macrocells, an expander product term array containing 32 expanders and an I/O block. In all therefore, there are 256 expander product terms, which are to be used and shared by the macrocells within each lab. The labs are all interconnected with a programmable interconnect array, which is given the task routing all signals throughout the chip. The maximum access time of a CY7C342B-30 is 30ns.

Functional Relevance Of Cy7c342b

CY7C342B-30RI owing to its features like high speed and density can be deployed in various applications. It can be used for replacements of large numbers of 7400 series TTL logic, can be deployed in complex controllers and multifunction chips. The device due to its higher functionality (about 25 times of the 20 pin PLDs) further allows replacement of over 50 TTL devices. By enabling replacements for large amount of logic, the CY7C342B-30RI reduces board space, part count and increases the system reliability and therefore, offers expertise in a compact package.