EPM240T100C4

Complex Programmable Logic Devices Overview

The Altera EPM240T100C4 is a Complex Programmable Logic Device (CPLD) belonging to the MAX II family. It features 240 logic elements organized into 24 Logic Array Blocks (LABs), providing 192 macrocells for user logic implementation. The device offers up to 80 I/O pins and includes 8,192 bits of embedded Flash memory for configuration storage. It operates with supply voltages of 2.5 V or 3.3 V, supporting IO banks at 1.5 V, 1.8 V, 2.5 V, or 3.3 V. Key electrical parameters include a maximum propagation delay of 4.7 ns and a maximum operating frequency of 304 MHz. The component is housed in a 100-pin TQFP package.

Complex Programmable Logic Devices Feature Summary

• Non-volatile Flash architecture allows immediate operation upon power-up without external configuration devices.
• Supports flexible I/O voltage standards including LVCMOS and LVTTL across two independent voltage domains.
• Integrated 8 Kbit user-accessible Flash memory for storing small data sets or configuration parameters.
• System-in-Programmability (ISP) capability via JTAG interface for in-system reprogramming.

Complex Programmable Logic Devices Applications

• Logic glue functions in embedded systems
• Timing control and signal buffering
• Bus level translation between different voltage domains
• I/O expansion for microcontrollers

Complex Programmable Logic Devices Procurement Notes

Verify the specific suffix 'C4' against official Intel/Altera documentation to confirm speed grade and temperature range, as distributor listings may vary. Confirm RoHS compliance status and moisture sensitivity level (MSL) prior to PCB assembly planning. Check for end-of-life notices or production change notifications that may affect long-term availability.

Complex Programmable Logic Devices Selection Notes

Select this model when non-volatile configuration is required to eliminate external Flash chips. Ensure the design fits within the 240 LE and 192 macrocell limits. Verify that the 100-pin TQFP footprint matches the board layout constraints. Consider the 4.7 ns delay if high-speed synchronous interfaces are critical to the application.

Complex Programmable Logic Devices Part Context

The EPM240T100C4 is part of the MAX II series, which succeeded the MAX 7000 family using a more advanced 0.18 μm process technology. This series emphasizes low power consumption and reduced cost for small-scale logic applications. The 'T' indicates the TQFP package, while '100' denotes the pin count, and 'C4' specifies the commercial temperature range and speed grade.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-compatible replacements within the same package and logic density should be sought from the MAX II family, such as the EPM240T100C5N or EPM240T100I5N, depending on required temperature ranges and speed grades. Verify software compatibility, as newer Quartus Prime versions may have limited support for older MAX II speed grades compared to legacy Quartus II tools.