CY37128P160-125AC

Complex Programmable Logic Devices Overview

The CY37128P160-125AC is a 5V In-System Reprogrammable (ISR) CMOS Complex Programmable Logic Device (CPLD) from the Ultra37000 family. It features 128 macrocells, 133 I/O pins, and five dedicated inputs. The device operates within a commercial temperature range of 0°C to +70°C with a supply voltage of 5V ± 0.25V. It supports VCCO levels of either 5V or 3.3V for flexible interfacing. The maximum propagation delay is 6.5 ns, corresponding to a maximum frequency of 167 MHz.

Complex Programmable Logic Devices Feature Summary

• In-System Reprogrammable (ISR) 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
• Bus-interface applications requiring noise reduction

Complex Programmable Logic Devices Procurement Notes

Verify package type and speed bin compatibility during procurement. Confirm that the specific ordering suffix matches the required lead frame finish and operating temperature range. Ensure design tools support the Ultra37000 architecture for proper synthesis and fitting.

Complex Programmable Logic Devices Selection Notes

Select this component for designs requiring 128 macrocells and high pin counts in a 160-lead TQFP package. The 5V version allows 3.3V I/O operation when VCCO is set to 3.3V. Consider the simple timing model which eliminates routing-dependent delays for predictable performance.

Complex Programmable Logic Devices Part Context

This part belongs to the Ultra37000 CPLD family, originally developed by Cypress Semiconductor Corporation. The family offers densities ranging from 32 to 512 macrocells with consistent pinouts across densities to simplify design migration. The CY37128 provides a balance of logic density and I/O flexibility.

Complex Programmable Logic Devices Replacement Considerations

Check for availability of other speed bins within the CY37128 series, such as the -100 or -83 variants, if lower performance is acceptable. Verify pinout compatibility with existing PCB layouts before substituting.