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The CY7C374i is an In-System Reprogrammable Complex rogrammable Logic Device (CPLD) and is part of the LASH370i™ family of high-density, high-speed CPLDs. Like ll members of the FLASH370i family, the CY7C374i is esigned t bring the ease of use as well as PCI Local Bus pecification support and high performance of the 22V10 to igh-density CPLDs.

Like all of the UltraLogic™ FLASH370i devices, the CY7C374i s electrically erasable and In-System Reprogrammable (ISR), hich simplifies both design and manufacturing flows, thereby educing costs. The Cypress ISR function is implemented hrough a JTAG serial interface. Data is shifted in and out hrough the SDI and SDO pin. The ISR interface is enabled sing the programming voltage pin (ISREN). Additionally, ecause of the superior routability of the FLASH370i devices, SR often allows users to change existing logic designs while imultaneously fixing pinout assignments.

The 128 macrocells in the CY7C374i are divided between ight logic blocks. Each logic block includes 16 macrocells, a 2 x 86 product term array, and an intelligent product term llocator.