LC4032B-10T44I

Overview

The LC4032B-10T44I is a complex programmable logic device (CPLD) from the ispMACH 4000V/B/C/Z family, manufactured by Lattice Semiconductor Corporation. This specific part number denotes the 4032 variant with a -10 speed grade and TQFP-44 package. The device integrates 32 macrocells capable of operating at SuperFAST frequencies up to 400 MHz. It features a 1.8 V core voltage for low dynamic power consumption while supporting 5 V tolerant I/Os compatible with LVCMOS 3.3, LVTTL, and PCI interfaces. The typical standby current is 11.5 µA, and it supports JTAG in-system programming.

Feature Summary

• Integrates 32 macrocells with global routing pool for timing predictability
• SuperFAST performance with fMAX up to 400 MHz and propagation delay of 2.5 ns
• 1.8 V core voltage with 5 V tolerant I/Os for mixed-voltage systems
• Supports JTAG In-System Programming (ISP) for flexible configuration

Applications

• Interface bridging between different voltage domains
• Address/data bus buffering and protocol conversion
• Simple state machine implementation in embedded systems
• Clock distribution and synchronization circuits

Procurement Notes

Verify the package type matches the required TQFP-44 footprint. Confirm the temperature grade corresponds to industrial or commercial requirements as specified in the datasheet. Ensure compatibility with the intended programming toolchain for JTAG ISP. Check for any recent product change notices regarding marking or packaging updates.

Selection Notes

Select this component when a small form factor CPLD with 32 macrocells is sufficient for the design logic density. The -10 speed grade offers a balance between performance and power. Consider the TQFP-44 package constraints for PCB layout. Compare against higher-density variants like the LC4064B if future expansion is anticipated.

Part Context

This device belongs to the ispMACH 4000V/B/C/Z family, which blends architectures from previous ispLSI 2000 and ispMACH 4A series. The 'B' suffix indicates a 2.5 V supply voltage option within the family, although the core remains 1.8 V. The family is known for high density and low power consumption in a compact package.

Replacement Considerations

Direct pin-to-pin replacements within the same family include other speed grades of the LC4032 such as LC4032B-10TN44I or LC4032B-7T44I. Higher density equivalents like LC4064B require schematic and layout modifications due to additional macrocells and I/Os.