CY37256P160-83AXI

Complex Programmable Logic Devices Overview

The CY37256P160-83AXI is a high-density, electrically erasable, and In-System Reprogrammable (ISR) CMOS Complex Programmable Logic Device (CPLD). It belongs to the Ultra37000 family and features 256 macrocells with up to 197 I/O pins. The device operates at a maximum frequency of 83 MHz with a typical propagation delay of 7.5 ns. It supports both 5V and 3.3V supply voltages via VCCO connections, ensuring compatibility with PCI Local Bus specifications. The architecture utilizes a Programmable Interconnect Matrix (PIM) for robust global routing.

Complex Programmable Logic Devices Feature Summary

• In-System Reprogrammable (ISR) capability via JTAG interface
• PCI Local Bus Specification compliant
• Programmable bus-hold capabilities on all I/Os
• Intelligent product term allocator with steering and sharing

Complex Programmable Logic Devices Applications

• PCI-compatible system logic
• High-density programmable logic solutions
• In-system reconfiguration applications

Complex Programmable Logic Devices Procurement Notes

Verify component authenticity through authorized Infineon distributors or certified suppliers. Confirm package integrity and pin alignment prior to installation. Ensure proper ESD handling procedures are followed during storage and assembly. Check datasheet revisions for any updates to electrical characteristics or mechanical dimensions.

Complex Programmable Logic Devices Selection Notes

Select this model for designs requiring 256 macrocells and high-speed performance up to 83 MHz. The 160-lead TQFP package accommodates up to 197 I/Os. Verify voltage requirements; the device supports 5V operation with flexible VCCO settings for 3.3V or 5V I/O levels. Consider ISR needs for field upgrades or debug flexibility.

Complex Programmable Logic Devices Part Context

Part of the Ultra37000 CPLD family from Cypress Semiconductor, now part of Infineon Technologies. This series provides high-density programmable logic with consistent pinouts across densities, simplifying design migration within the family.

Complex Programmable Logic Devices Replacement Considerations

Check for direct equivalents within the CY37256 series with different speed grades or package options. Verify pinout compatibility if substituting with other CPLDs, as architectural differences may require schematic changes.

Complex Programmable Logic Devices FAQ

What is the maximum operating frequency?

The maximum operating frequency is 83 MHz.

Does the device support In-System Reprogramming?

Yes, it supports ISR via a JTAG-compliant serial interface.

Is the device PCI compliant?

Yes, the 5V operation is fully compliant with the PCI Local Bus Specification.