LC4064B-5T48I

Complex Programmable Logic Devices Overview

The LC4064B-5T48I is a Complex Programmable Logic Device (CPLD) belonging to the Lattice ispMACH 4000B family. It features 64 macrocells organized into 4 Logic Array Blocks (LABs) and provides 32 I/O pins within a TQFP-48 surface-mount package. The device operates at a nominal voltage of 2.5 V, with a specified range of 2.3 V to 2.7 V. It supports a maximum operating frequency of 400 MHz and achieves a maximum propagation delay of 5 ns. The component is rated for industrial temperatures ranging from -40°C to +105°C.

Complex Programmable Logic Devices Feature Summary

• High-performance architecture supporting up to 400 MHz operation with 5 ns maximum propagation delay.
• Integrated 64 macrocells distributed across 4 Logic Array Blocks (LABs).
• Supports JTAG In-System Programming (ISP) for flexible configuration.
• Industrial temperature range capability (-40°C to +105°C).

Complex Programmable Logic Devices Applications

• High-speed digital logic interfacing and protocol conversion.
• Address decoding and bus bridging in embedded systems.
• State machine implementation for control logic.
• Replacement for legacy GAL or PAL devices requiring higher density.

Complex Programmable Logic Devices Procurement Notes

Verify the specific speed grade suffix '5' against official Lattice documentation to confirm the 5 ns timing specification. Confirm RoHS compliance status via the manufacturer datasheet, as availability varies by region. Check for End-of-Life (EOL) notices or obsolescence warnings before finalizing design-in decisions.

Complex Programmable Logic Devices Selection Notes

Select this model when a 2.5 V supply is required alongside high-speed performance (5 ns delay). Compare against the LC4064B-75 variant if slower switching speeds are acceptable for lower power consumption. Ensure the TQFP-48 footprint matches the PCB layout constraints compared to BGA options like FTBGA.

Complex Programmable Logic Devices Part Context

This part belongs to the ispMACH 4000B series, which combines low-power CMOS technology with high-density programmability. The 'B' designation indicates the second generation of the 4000 family, offering improved performance over the original 4000V/B/C/Z series while maintaining pin compatibility with certain legacy designs.

Complex Programmable Logic Devices Replacement Considerations

Direct functional substitutes include other members of the LC4064B family, such as the LC4064B-75TN48I or LC4064B-10T48I, provided the timing requirements allow for slower speeds. Cross-family replacements may require schematic and code adjustments.