LC4128V-27TN100C

Complex Programmable Logic Devices Overview

The LC4128V-27TN100C is a Complex Programmable Logic Device (CPLD) from the ispMACH 4000V family, manufactured by Lattice Semiconductor. It features 128 macrocells and 64 I/O pins housed in a TQFP-100 package. The device operates at a maximum frequency of 333 MHz with a maximum propagation delay of 2.7 ns. It supports a supply voltage range of 3 V to 3.6 V, typically 3.3 V, and functions within a commercial temperature range of 0°C to +90°C.

Complex Programmable Logic Devices Feature Summary

• High-performance SuperFAST architecture with up to 333 MHz operating frequency
• In-system programmability via JTAG interface for flexible design updates
• 5 V tolerant I/Os supporting LVCMOS 3.3, LVCMOS 2.5, LVCMOS 1.8, and LVTTL standards

Complex Programmable Logic Devices Applications

• Interface bridging between different voltage domains in embedded systems
• Address decoding and control logic generation in industrial equipment
• State machine implementation for communication protocol controllers
• Replacement for legacy GAL devices in high-density logic applications

Complex Programmable Logic Devices Procurement Notes

This component is identified as an End-of-Life (EOL) product by the manufacturer. Availability is limited to existing stock or third-party distributors. Verify RoHS compliance status carefully, as some listings indicate non-compliance while others may reflect updated manufacturing runs. Confirm the specific suffix 'C' denotes lead-free packaging if required for assembly processes. Due to EOL status, long-term supply continuity cannot be guaranteed without explicit vendor confirmation.

Complex Programmable Logic Devices Selection Notes

Select this CPLD when designing systems requiring moderate logic density with predictable timing characteristics. The 27 speed grade offers a balance between performance and power consumption suitable for commercial applications. Ensure the design fits within the 128 macrocell limit and utilizes the available 64 I/O pins efficiently. Consider the TQFP-100 package constraints for PCB layout. For higher density or lower power requirements, evaluate other members of the ispMACH 4000V/B/C/Z family.

Complex Programmable Logic Devices Part Context

The LC4128V-27TN100C belongs to the ispMACH 4000V family, which integrates low-power SuperFAST CPLD technology. This family combines features from previous ispLSI and ispMACH 4A lines, offering global clocking resources and output routing for improved timing predictability. The 'V' suffix indicates a 3.3 V core voltage, while '27' specifies the 2.7 ns propagation delay speed grade. The 'TN100' identifies the TQFP-100 package variant.

Complex Programmable Logic Devices Replacement Considerations

As an End-of-Life product, direct replacements are scarce. Designers should consider migrating to newer Lattice families such as ispMACH 4000Z or MachXO series for continued support. When substituting, verify pin compatibility and logic capacity. No public confirmed substitutes are listed for this specific discontinued part number.