LC4256ZC-75T100C

Complex Programmable Logic Devices Overview

The LC4256ZC-75T100C is a Complex Programmable Logic Device (CPLD) from the ispMACH 4000Z family, manufactured by Lattice Semiconductor. It features 256 macrocells and 16 Logic Array Blocks (LABs). The device supports In-System Programming (ISP) and operates with a supply voltage range of 1.7V to 1.9V. Key electrical parameters include a maximum propagation delay of 7.5 ns and a maximum operating frequency of 200 MHz. It is housed in a 100-pin TQFP package and supports an industrial temperature range.

Complex Programmable Logic Devices Feature Summary

• Supports In-System Programming for flexible design updates
• Features enhanced macrocells with individual clock, reset, preset, and clock enable controls
• Includes wide input gating capabilities for efficient state machine and counter implementation

Complex Programmable Logic Devices Applications

• High-density logic replacement in industrial control systems
• Address decoding and bus bridging in embedded computing
• State machine implementation for automated manufacturing equipment
• Interface adaptation between legacy and modern digital components

Complex Programmable Logic Devices Procurement Notes

Verify the specific suffix 'C' against official Lattice documentation to confirm commercial grade temperature rating versus industrial variants. Ensure compatibility with 1.8V core voltage requirements during integration. Confirm moisture sensitivity level handling procedures are followed according to JESD-020 standards prior to assembly. Cross-reference pinout diagrams with target PCB layout specifications to prevent placement errors.

Complex Programmable Logic Devices Selection Notes

Select this component when 256 macrocells and 1.8V operation are required within a 100-pin surface mount package. Compare against the LC4256V series if 3.3V operation or higher speed performance is necessary instead. Consider the LC4256ZE variant if lower power consumption is critical for battery-operated applications. Evaluate package availability constraints between TQFP and BGA options based on board space limitations.

Complex Programmable Logic Devices Part Context

This part belongs to the ispMACH 4000Z family, designed for low-power, high-performance CPLD applications. The family integrates non-volatile configuration memory with fast programmable logic. It targets designs requiring moderate complexity with low standby power consumption. The Z-series specifically optimizes for 1.8V core voltage operation while maintaining robust I/O flexibility.

Complex Programmable Logic Devices Replacement Considerations

Direct functional substitutes within the same package include other LC4256ZC variants with different speed grades. Verify that alternative packages such as CSBGA-144 maintain compatible pin assignments if form factor changes are permissible. Ensure that any replacement maintains the 1.8V core voltage requirement to avoid logic level mismatches.