EPM7256BTC100-7N

Complex Programmable Logic Devices Overview

The Altera EPM7256BTC100-7N is a high-performance, 2.5-V CMOS EEPROM-based programmable logic device (PLD) belonging to the MAX 7000B family. It features 256 macrocells organized into 16 Logic Array Blocks (LABs), providing 5,000 usable gates and up to 164 user I/O pins in its TQFP-100 package. The device operates with a supply voltage range of 2.375 V to 2.625 V. Key electrical parameters include a maximum propagation delay (tPD) of 7 ns, a setup time (tSU) of 3.3 ns, and a counter frequency (fCNT) of 188.7 MHz. It supports advanced in-system programming via IEEE Std. 1149.1 JTAG.

Complex Programmable Logic Devices Feature Summary

• High-density architecture with 256 macrocells, 16 LABs, and 5,000 usable gates.
• Advanced 2.5-V in-system programmability (ISP) using IEEE Std. 1149.1 JTAG interface.
• MultiVolt I/O interface compatible with 3.3-V, 2.5-V, and 1.8-V logic levels.
• Programmable Interconnect Array (PIA) for predictable timing performance.

Complex Programmable Logic Devices Applications

• Complex address decoding and bus interfacing in embedded systems.
• State machine implementation and sequential logic control.
• Replacement for legacy PALs, GALs, and pLSI devices.
• Mixed-voltage system integration requiring level translation.

Complex Programmable Logic Devices Procurement Notes

Verify the specific speed grade suffix (-7) corresponds to the required 7 ns propagation delay during sourcing. Confirm the TQFP-100 package availability matches design footprint requirements. Ensure programming hardware supports the enhanced ISP algorithm and IEEE Std. 1532 compliance for in-system configuration.

Complex Programmable Logic Devices Selection Notes

Select this component when a 2.5-V core voltage is required alongside MultiVolt I/O compatibility. Compare against MAX 7000A (3.3-V) or MAX 7000S (5.0-V) families if voltage levels differ. Consider the 164 I/O pin count and 5,000 gate density for designs exceeding standard SSI/MSI capabilities but not requiring FPGA complexity.

Complex Programmable Logic Devices Part Context

The EPM7256BTC100-7N is part of the second-generation MAX 7000B family, designed for high-speed applications with low power consumption. It is pin-compatible with other MAX 7000B devices in the same package, facilitating migration within the family. The device utilizes CMOS EEPROM technology, allowing reprogramming up to 100 times.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-compatible replacements within the MAX 7000B family include EPM7256B variants with different speed grades (e.g., -5, -10). Cross-family migration to MAX 7000A requires voltage level adjustment due to 3.3-V operation.