CY7C374I-125AC

Complex Programmable Logic Devices Overview

The CY7C374I-125AC is a Flash-based Complex Programmable Logic Device (CPLD) from Cypress Semiconductor's UltraLogic family. It features 128 macrocells and supports in-system programmability via the JTAG interface. The device operates with a maximum propagation delay of 12.5 ns and utilizes non-volatile Flash technology, allowing for unlimited reprogramming cycles without the need for an erasure cycle. It is designed for high-density logic applications requiring rapid design iteration and field updates.

Complex Programmable Logic Devices Feature Summary

• 128 Macrocells with 16 I/Os
• In-System Programmability via JTAG
• Non-volatile Flash Technology
• 12.5 ns Maximum Propagation Delay

Complex Programmable Logic Devices Applications

• High-speed logic replacement
• Interface bridging between different voltage domains
• State machine implementation
• Address decoding and control logic

Complex Programmable Logic Devices Part Context

This component belongs to the UltraLogic series of Flash CPLDs. Unlike SRAM-based devices, it retains configuration data when power is removed. The 'I' suffix typically denotes industrial temperature range operation, while '125' indicates the speed grade. It serves as a drop-in replacement for older EEPROM or EPROM-based PLDs in many legacy designs.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-compatible replacements within the same package may include other CY7C37x variants with different speed grades or macrocell counts, provided timing requirements are met. Cross-vendor equivalents such as Xilinx XC9500 series should be evaluated for pinout compatibility and logic density.