EPM7256BUC169-10N

Complex Programmable Logic Devices Overview

The Altera EPM7256BUC169-10N is a Complex Programmable Logic Device (CPLD) belonging to the MAX 7000B family. It features 2,500 usable gates and 256 macrocells organized into 16 Logic Array Blocks (LABs). The device operates at a 2.5-V supply voltage with a maximum propagation delay of 5.0 ns and supports counter frequencies up to 188.7 MHz. It utilizes EEPROM technology for non-volatile storage and provides 164 user I/O pins in a 169-pin 0.8-mm Ultra FineLine BGA package.

Complex Programmable Logic Devices Feature Summary

• High-performance 2.5-V CMOS EEPROM-based architecture with 3.5-ns pin-to-pin delays on smaller devices and 5.0 ns for this model.
• Advanced In-System Programmability (ISP) via IEEE Std. 1149.1 JTAG interface compliant with IEEE Std. 1532.
• MultiVolt I/O interface allowing compatibility with 3.3-V, 2.5-V, and 1.8-V logic levels while the core runs at 2.5 V.
• Configurable expander product terms providing up to 32 product terms per macrocell through shareable and parallel expanders.

Complex Programmable Logic Devices Applications

• Digital signal processing applications requiring high-density integration.
• Interface bridging between different voltage domains in mixed-voltage systems.
• Replacement for legacy PALs, GALs, and pLSI devices in industrial control systems.

Complex Programmable Logic Devices Procurement Notes

Verify component authenticity upon receipt as this part number may be subject to obsolescence or limited availability from original manufacturers. Check for moisture sensitivity labeling if the package has been stored for extended periods. Ensure programming adapters support the specific ISP requirements of the MAX 7000B family before procurement.

Complex Programmable Logic Devices Selection Notes

Select this device when designs require 256 macrocells and 164 I/O pins within a compact 169-ball BGA footprint. Consider the 2.5-V core voltage requirement and ensure power supplies are compatible. Verify that the design fits within the 5.0 ns timing constraints and utilizes the SameFrame pin-out compatibility if migrating from other densities in the same package type.

Complex Programmable Logic Devices Part Context

This component is part of the MAX 7000B series, which offers pin-compatibility with the 5.0-V MAX 7000S and 3.3-V MAX 7000A families. The EPM7256BUC169-10N specifically uses the 'UC' suffix for the 0.8-mm Ultra FineLine BGA package and '-10' for the 5.0 ns speed grade. It shares architectural features like the Programmable Interconnect Array (PIA) with other devices in the MAX 7000B family.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-compatible replacements within the same package include other MAX 7000B devices such as EPM7128B or EPM7512B, provided the I/O count and logic density requirements are met. Cross-family migration to MAX 7000A or MAX 7000S requires verification of voltage level compatibility and pin mapping adjustments.