LC4064ZC-5M56I

Complex Programmable Logic Devices Overview

The LC4064ZC-5M56I is a Complex Programmable Logic Device (CPLD) from Lattice Semiconductor’s MachXO2 family. It features 6,400 usable macrocells and supports up to 108 user I/Os within a 56-pin Thin Quad Flatpack (TQFP) package. The device utilizes non-volatile CMOS (NVCM) technology, allowing for instant-on operation without external configuration memory. Key electrical parameters include a maximum system clock frequency of 200 MHz at the -5 speed grade and an operating voltage range of 1.8V to 3.3V.

Complex Programmable Logic Devices Feature Summary

• Non-volatile CMOS (NVCM) architecture enables instant power-up with no boot time or external configuration flash required.
• High-density logic capacity with 6,400 macrocells and up to 108 flexible I/O pins in a compact 56-pin TQFP package.
• Integrated high-speed serial transceivers supporting data rates up to 625 Mbps for simplified connectivity.
• Supports multiple low-power modes including sleep mode with current consumption as low as 1 µA.

Complex Programmable Logic Devices Applications

• Replacement for legacy GALs and CPLDs in industrial control systems.
• Interface bridging between processors and peripherals in embedded designs.
• Address decoding and bus buffering in computer and communication equipment.
• State machine implementation in consumer electronics and IoT devices.

Complex Programmable Logic Devices Procurement Notes

Verify the specific suffix 'I' indicates the commercial temperature range (-40°C to +85°C). Confirm the package type matches the design footprint, as the M56 designation refers to the 56-pin TQFP. Ensure the speed grade '-5' meets the timing requirements of the target application, as higher grades offer faster performance but may have different availability.

Complex Programmable Logic Devices Selection Notes

Select this component when instant-on functionality is critical to eliminate external configuration memory costs and board space. The MachXO2 family offers a balance of density and power efficiency suitable for designs requiring moderate logic complexity. Compare against the LC4032ZC for lower density needs or LC4128ZC for higher macrocell counts if pin count allows.

Complex Programmable Logic Devices Part Context

This part belongs to the MachXO2 family, which represents Lattice's second-generation non-volatile FPGA/CPLD technology. It bridges the gap between traditional PLDs and larger FPGAs, offering reprogrammability with the simplicity and reliability of EEPROM-based devices. The family is widely adopted in high-volume applications due to its robust security features and low power profile.

Complex Programmable Logic Devices Replacement Considerations

Direct pin-to-pin replacements within the MachXO2 family include the LC4032ZC (lower density) and LC4128ZC (higher density), provided the package and pinout compatibility is verified. Cross-family replacements from older MachXO orispLever series require schematic review due to architectural differences in I/O banks and configuration methods.