LC5512MC-75F256C CPLD: A Technical Guide to Features, Specs, and Applications

Table of Contents

• 1.0 What is the LC5512MC-75F256C? An Overview
  • 1.1 Core Definition: A High-Density CPLD
  • 1.2 Belonging to the ispXPLD® 5000 Family
• 2.0 Key Technical Specifications (Datasheet Breakdown)
  • 2.1 Core Logic and Memory
  • 2.2 Performance and Speed
  • 2.3 Operating Conditions and Package Details
• 3.0 Advanced Features of the LC5512MC-75F256C
  • 3.1 sysIO™ Interfaces for Flexible Connectivity
  • 3.2 sysCLOCK™ PLLs for Timing Control
  • 3.3 Expanded In-System Programmability (ispXP™)
• 4.0 Applications, Programming, and Design Considerations
  • 4.1 Common Applications for the LC5512MC-75F256C
  • 4.2 Programming and Development
  • 4.3 Frequently Asked Questions

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In the realm of digital logic design, Complex Programmable Logic Devices (CPLDs) serve as a crucial bridge between simple logic gates and highly complex FPGAs. For engineers needing a combination of speed, significant I/O, and non-volatile configuration, the LC5512MC-75F256C from Lattice Semiconductor is a powerful and flexible solution. This CPLD is designed to handle complex logic functions with deterministic timing, making it a robust choice for a variety of control and interface applications.

This technical guide will provide a comprehensive breakdown of the LC5512MC-75F256C datasheet, exploring its core specifications, advanced features, and typical applications to help you determine if it's the right fit for your next embedded system design.

1.0 What is the LC5512MC-75F256C? An Overview

The LC5512MC-75F256C is a high-density, In-System Programmable (ISP) Complex Programmable Logic Device (CPLD) manufactured by Lattice Semiconductor. It integrates a significant amount of reconfigurable logic, memory, and specialized I/O into a single chip.

1.1 Core Definition: A High-Density CPLD

At its core, this device is designed for:

• Logic Integration: Consolidating glue logic, state machines, and other digital functions into one package.
• High Performance: Offering fast pin-to-pin delays for time-critical applications.
• Flexibility: Being infinitely reconfigurable through its programming interface.

1.2 Belonging to the ispXPLD® 5000 Family

The LC5512MC-75F256C is part of the ispXPLD® 5000 series (specifically, the 5000MC variant, indicating a 1.8V core). This family is known for its flexible architecture, advanced I/O capabilities, and on-chip memory resources.

2.0 Key Technical Specifications (Datasheet Breakdown)

A deep dive into the datasheet reveals the capabilities of this CPLD.

2.1 Core Logic and Memory

Specification	Value	Source
Programmable Type	In-System Programmable
Number of Macrocells	512
Number of Gates	150k
Logic Elements/Blocks	16
Memory Type	EEPROM, SRAM
Maximum RAM Bits	256K

2.2 Performance and Speed

Specification	Value	Source
Delay Time tpd(1) Max	7.5 ns
Maximum Operating Frequency (fMAX)	275 MHz

2.3 Operating Conditions and Package Details

Specification	Value	Source
Voltage Supply - Internal	1.65V ~ 1.95V (1.8V nominal)
Operating Supply Voltage	3.3 V
Number of I/O	193
Operating Temperature	0°C ~ 90°C (TJ)
Package / Case	256-BGA
Supplier Device Package	256-FPBGA (17x17)
Mounting Type	Surface Mount

3.0 Advanced Features of the LC5512MC-75F256C

This CPLD is more than just a collection of logic cells; it integrates powerful features to simplify system design.

3.1 sysIO™ Interfaces for Flexible Connectivity

The device supports a wide range of I/O standards, allowing it to interface directly with various components without the need for external level-shifting logic. Key features of the sysIO cells include:

• Multiple Standards: Support for LVCMOS (1.8V, 2.5V, 3.3V), LVTTL, SSTL, HSTL, PCI, LVDS, and more.
• 5V Tolerant I/O: Inputs can be safely driven up to 5.5V when an I/O bank is configured for 3.3V operation.
• Hot-Socketing: Allows the device to be safely inserted or removed from a live backplane.
• Programmable Impedance and Bus-Keepers: Flexible control over bus maintenance (pull-up, pull-down, etc.).

3.2 sysCLOCK™ PLLs for Timing Control

On-chip Phase-Locked Loops (PLLs) provide sophisticated clock management capabilities.

• Clock Synthesis: Multiply and divide clock frequencies by factors between 1 and 32.
• Clock Shifting: The ability to phase-shift clock signals to manage timing within the system.
• External Feedback: Enables board-level clock deskewing for improved system timing margins.

3.3 Expanded In-System Programmability (ispXP™)

The ispXP technology offers a high degree of flexibility and security.

• Instant-On Capability: The device is live at power-up.
• Infinite Reconfigurability: The CPLD can be reprogrammed in the field via its IEEE 1532 interface or a microprocessor interface.
• Design Security: Features to protect the intellectual property programmed into the device.

4.0 Applications, Programming, and Design Considerations

The combination of high-density logic, speed, and advanced I/O makes the LC5512MC-75F256C suitable for a variety of demanding applications.

4.1 Common Applications for the LC5512MC-75F256C

• Industrial Automation: Implementing control logic, state machines, and interfacing with various sensors and actuators.
• Test and Measurement Instruments: Creating custom logic for data acquisition, signal processing, and control interfaces.
• Medical Devices: Used in control modules and data acquisition systems where reliable and stable performance is required.
• Control Systems: The device is well-suited for embedded and control applications that require reliable logic and easy programmability.

4.2 Programming and Development

• Programming Interface: The LC5512MC-75F256C is an In-System Programmable device, configured via its IEEE 1532 interface.
• Development Tools: Lattice Semiconductor provides a suite of development tools for designing, compiling, and programming their CPLDs.
• Hardware: A compatible programming cable (e.g., Lattice USB programmer) is required to interface between the development PC and the target board's JTAG/IEEE 1532 port.

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The LC5512MC-75F256C stands out as a powerful and versatile CPLD for designers who need a balance of speed, density, and advanced I/O capabilities. Its in-system programmability, combined with on-chip PLLs and highly flexible I/O banks, allows it to serve as a robust logic hub in a wide array of complex electronic systems.

Looking to integrate this powerful CPLD into your next design? Find the LC5512MC-75F256C and a comprehensive range of programmable logic devices at aichiplink.com today!

 

 

 

 

 

Written by Jack Elliott from AIChipLink.

 

AIChipLink, one of the fastest-growing global independent electronic   components distributors in the world, offers millions of products from thousands of manufacturers, and many of our in-stock parts is available to ship same day.

 

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