EPM7256BUC169-7N

Complex Programmable Logic Devices Overview

The Altera EPM7256BUC169-7N 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 and 256 macrocells organized into 16 Logic Array Blocks (LABs). The device provides up to 164 user I/O pins and supports advanced in-system programmability (ISP) via an IEEE Std. 1149.1 JTAG interface. Key electrical parameters include a maximum pin-to-pin propagation delay of 7 ns, a setup time of 3.3 ns, and a counter frequency capability of 188.7 MHz. It operates with a 2.5-V core voltage while supporting MultiVolt I/O compatibility for 3.3-V, 2.5-V, and 1.8-V logic levels.

Complex Programmable Logic Devices Feature Summary

• High-density architecture with 5,000 usable gates, 256 macrocells, and 16 LABs.
• Advanced 2.5-V in-system programmability (ISP) through IEEE Std. 1149.1 JTAG interface.
• MultiVolt I/O interface enabling compatibility with 3.3-V, 2.5-V, and 1.8-V logic levels.
• Programmable speed/power optimization allowing 50% or greater power reduction per macrocell.

Complex Programmable Logic Devices Applications

• System-level logic replacement for SSI, MSI, and LSI functions.
• Mixed-voltage system integration requiring compatible I/O standards.
• High-speed digital signal processing with predictable timing performance.
• Applications requiring field upgrades via in-system programming.

Complex Programmable Logic Devices Procurement Notes

Verify component authenticity and datasheet revision alignment prior to procurement. Confirm package integrity and moisture sensitivity handling procedures as specified in the manufacturer's guidelines. Ensure programming hardware compatibility with the IEEE Std. 1532 standard for in-system programming operations.

Complex Programmable Logic Devices Selection Notes

Select this device for designs requiring 256 macrocells and high I/O counts within a 169-ball Ultra FineLine BGA package. Consider the 7-ns speed grade for applications needing 188.7 MHz counter frequencies. Evaluate power consumption requirements against the available programmable power-saving modes. Verify voltage level compatibility for all connected I/O interfaces.

Complex Programmable Logic Devices Part Context

The EPM7256BUC169-7N is part of the MAX 7000B series, which utilizes second-generation Multiple Array MatriX (MAX) architecture. This family offers pin-compatibility with MAX 7000S and MAX 7000A devices, facilitating migration paths across different voltage domains and densities while maintaining footprint compatibility through SameFrame pin-out features.

Complex Programmable Logic Devices Replacement Considerations

Pin-compatible alternatives 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 may require voltage level adjustments and software recompilation.