EPM7256BFI256-7

Complex Programmable Logic Devices Overview

The EPM7256BFI256-7 is a high-performance, 2.5-V CMOS EEPROM-based programmable logic device (PLD) belonging to the MAX 7000B family. It features 5,000 usable gates, 256 macrocells, and 16 logic array blocks. The device supports up to 164 maximum user I/O pins and operates with a pin-to-pin logic delay of 5.0 ns. It enables counter frequencies in excess of 188.7 MHz and includes advanced in-system programmability via an IEEE Std. 1149.1 JTAG interface.

Complex Programmable Logic Devices Feature Summary

• High-density PLD architecture with 5,000 usable gates and 256 macrocells
• Advanced 2.5-V in-system programmability (ISP) compliant with IEEE Std. 1532
• MultiVolt I/O interface supporting 3.3-V, 2.5-V, and 1.8-V logic levels
• Pin-compatible with 5.0-V MAX 7000S and 3.3-V MAX 7000A families

Complex Programmable Logic Devices Applications

• Complex digital logic replacement for SSI, MSI, and LSI functions
• Mixed-voltage system interfacing requiring MultiVolt compatibility
• Prototyping and design iterations utilizing in-system programmability
• PCI-compatible logic designs

Complex Programmable Logic Devices Procurement Notes

Verify the package type corresponds to the 256-pin FineLine BGA configuration indicated by the model suffix. Confirm that the required speed grade matches the -7 designation for 5.0 ns timing performance. Ensure programming hardware supports the specific ISP requirements of the MAX 7000B family.

Complex Programmable Logic Devices Selection Notes

Select this device when designs require 256 macrocells and high-speed performance at 2.5 V. Consider the -7 speed grade for applications needing 5.0 ns delays. Evaluate the MultiVolt I/O capability if interfacing with 3.3-V or 1.8-V peripherals. Check pin count requirements against the 164 maximum user I/O limit.

Complex Programmable Logic Devices Part Context

This component is part of the Altera MAX 7000B family, which utilizes second-generation Multiple Array MatriX (MAX) architecture. The family offers high integration with EEPROM technology, allowing reprogramming up to 100 times. It bridges the gap between simple PALs and complex FPGAs with predictable routing delays.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-compatible replacements within the same package include other MAX 7000B devices such as the EPM7128B or EPM7512B, subject to density and I/O constraints. Cross-family migration to MAX 7000A or MAX 7000S requires voltage level verification.