EPM7512BFI256-7

Complex Programmable Logic Devices Overview

The EPM7512BFI256-7 is a high-density, high-performance programmable logic device (PLD) from the MAX 7000B family. It operates with a 2.5-V supply voltage and features 512 macrocells organized into 32 logic array blocks (LABs). The device provides up to 10,000 usable gates and supports a maximum of 212 user I/O pins in its 256-pin package configuration. Key electrical parameters include a pin-to-pin propagation delay (tPD) of 5.5 ns, an input setup time (tSU) of 3.6 ns, and a counter frequency (fCNT) capability exceeding 163.9 MHz. It utilizes CMOS EEPROM technology for non-volatile storage.

Complex Programmable Logic Devices Feature Summary

• Advanced 2.5-V in-system programmability (ISP) via IEEE Std. 1149.1 JTAG interface with enhanced algorithm and ISP_Done bit.
• 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.
• Second-generation Multiple Array MatriX (MAX) architecture with Programmable Interconnect Array (PIA) for predictable timing.
• Configurable expander product terms providing up to 32 product terms per macrocell through shareable and parallel expanders.

Complex Programmable Logic Devices Applications

• High-speed data buffering and bus interfacing in mixed-voltage systems.
• Complex address decoding and glue logic replacement for SSI, MSI, and LSI functions.
• State machine implementation and sequential logic control with global clock capabilities.
• PCI-compatible designs requiring fast input setup times and bus-hold options.

Complex Programmable Logic Devices Procurement Notes

Verify the specific speed grade suffix (-7) corresponds to the required 5.5 ns tPD performance. Confirm the FI256 suffix indicates the FineLine BGA package type. Ensure design tools support the MAX 7000B family for compilation and programming. Check for end-of-life status as this is an older generation PLD.

Complex Programmable Logic Devices Selection Notes

Select this device when 512 macrocells and 10,000 usable gates are sufficient for the design complexity. Choose the -7 speed grade if a 5.5 ns delay meets the timing constraints; faster grades like -5 or -4 offer lower delays but may have different availability. Consider the MultiVolt I/O feature if interfacing with 3.3-V or 1.8-V peripherals without level shifters.

Complex Programmable Logic Devices Part Context

The EPM7512B belongs to the MAX 7000B series, which offers pin-compatibility with the earlier MAX 7000S (5.0-V) and MAX 7000A (3.3-V) families. This allows for potential migration paths between voltage domains while maintaining board layout integrity. The device represents a high-end option within the 2.5-V MAX 7000B lineup, offering the highest gate count in that specific voltage family.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-compatible replacements within the same package and voltage domain include other MAX 7000B devices such as EPM7256B, though with fewer resources. For higher density, consider migrating to the MAX 7000AE family (e.g., EPM7512AE) which maintains similar architectural features but operates at 3.3 V. Verify software toolchain compatibility when switching families.