LC4512B-5T176I

Complex Programmable Logic Devices Overview

The LC4512B-5T176I is a high-density Complex Programmable Logic Device (CPLD) from the Lattice ispMACH 4000B family. It features 512 macrocells and supports up to 128 I/O pins within a 176-pin TQFP package. The device operates with supply voltages of 3.3V, 2.5V, or 1.8V and delivers a maximum operating frequency of 400 MHz with a propagation delay as low as 2.5 ns. It includes In-System Programmability (ISP) via IEEE 1532 and supports JTAG boundary scan testing.

Complex Programmable Logic Devices Feature Summary

• 512 Macrocells with enhanced logic blocks for complex state machines
• Up to 400 MHz maximum operating frequency
• In-System Programmability (ISP) using IEEE 1532 interface
• Supports 3.3V, 2.5V, and 1.8V I/O standards

Complex Programmable Logic Devices Applications

• High-speed data bus interfacing
• Address decoding and control logic
• Protocol conversion between different voltage domains

Complex Programmable Logic Devices Procurement Notes

Verify the specific suffix 'I' indicates industrial temperature range (-40°C to +105°C). Confirm package type is TQFP-176. Check RoHS compliance status against current manufacturing notices. Ensure design files support the 4000B architecture specifically.

Complex Programmable Logic Devices Selection Notes

Select this model when 512 macrocells are required for moderate complexity designs. Choose the B variant over V or C if specific legacy feature sets or timing characteristics of the 4000B family are needed. Verify I/O voltage requirements match the target system's 3.3V/2.5V/1.8V capabilities.

Complex Programmable Logic Devices Part Context

Part of the ispMACH 4000B series, designed for high-performance applications requiring non-volatile configuration and fast turnaround. It sits between lower-density devices like the LC4256 and higher-density options in the same family, offering a balance of pin count and logic resources.

Complex Programmable Logic Devices Replacement Considerations

Direct replacements include other variants in the LC4512 family such as LC4512V or LC4512C, provided timing and temperature specifications align. Cross-family migration to newer Lattice architectures may require design re-verification.