EPM3064ATI44-10N

Complex Programmable Logic Devices Overview

The Altera EPM3064ATI44-10N is a CMOS EEPROM-based Complex Programmable Logic Device (CPLD) belonging to the MAX 3000A family. It provides 1,250 usable gates organized into 64 macrocells and 4 Logic Array Blocks (LABs). The device operates at a 3.3-V supply voltage with a maximum propagation delay of 4.5 ns and supports counter frequencies up to 222.2 MHz. It features MultiVolt I/O compatibility for 5.0-V, 3.3-V, and 2.5-V logic levels. The component is housed in a 44-pin Thin Quad Flat Pack (TQFP) package and includes built-in IEEE Std. 1149.1 JTAG boundary-scan test circuitry.

Complex Programmable Logic Devices Feature Summary

• EEPROM-based architecture allowing 100 reprogramming cycles and In-System Programming (ISP) via IEEE Std. 1149.1 JTAG interface.
• MultiVolt I/O interface supporting 5.0-V, 3.3-V, and 2.5-V logic levels while maintaining a 3.3-V core.
• Programmable Interconnect Array (PIA) providing continuous routing for fast, predictable performance with 4.5 ns pin-to-pin delays.
• Configurable macrocells with shareable and parallel expander product terms, offering up to 32 product terms per macrocell.

Complex Programmable Logic Devices Applications

• Replacement for PALs, GALs, and high-density SSI/MSI/LSI logic functions.
• PCI Local Bus Specification Revision 2.2 compatible designs.
• Mixed-voltage system integration requiring 5.0-V, 3.3-V, and 2.5-V I/O tolerance.

Complex Programmable Logic Devices Procurement Notes

Verify the specific speed grade suffix (-10) against the required timing parameters, as the MAX 3000A family includes -4, -5, -6, -7, and -10 grades. Confirm that the TQFP-44 package matches the target PCB footprint. Check for End-of-Life (EOL) status or obsolescence notices from Intel/Altera, as this series may be discontinued. Ensure programming hardware supports IEEE Std. 1532 ISP compliance if field updates are required.

Complex Programmable Logic Devices Selection Notes

Select the EPM3064ATI44-10N when 64 macrocells and 34 user I/O pins are sufficient for the design logic density. The -10 speed grade offers 4.5 ns delay, suitable for applications requiring up to 222.2 MHz counter frequencies. Consider the EPM3032A for lower gate counts or the EPM3128A for higher density if more LABs are needed. Verify that the 3.3-V operating voltage aligns with the system power supply constraints.

Complex Programmable Logic Devices Part Context

The EPM3064ATI44-10N is part of the MAX 3000A family, which succeeded earlier MAX families by integrating ISP capabilities directly into the silicon. This family utilizes a programmable interconnect array (PIA) rather than channel-based routing, ensuring deterministic timing performance. The device is manufactured using advanced CMOS technology and is designed for cost-effective, high-performance programmable logic solutions.

Complex Programmable Logic Devices Replacement Considerations

Direct functional replacements within the same package and speed grade are limited due to the discontinuation of the MAX 3000A line. Designers may need to migrate to newer Intel/Altera CPLD families such as MAX 10 or MAX V, which require schematic redesign and pin reassignment. Legacy EPM3064 variants with different speed grades (e.g., -4, -7) may fit physically but will have different timing characteristics.