LC4256C-5F256BC is a complex programmable logic device (CPLD) from Lattice Semiconductor’s ispMACH 4000 series, designed for high-speed logic integration, low power consumption, and in-system programmability.This CPLD is equipped with 256 macrocells, a flexible I/O interface, and non-volatile EEPROM-based memory, making it the ideal choice for designers seeking reliable programmable logic solutions for telecommunications, consumer electronics, industrial systems, and automotive applications.
Technical specifications – LC4256C-5F256BC
Manufacturer Lattice Semiconductor
Product line ispMACH 4000 (LC4000C series)
Device type CPLD (complex programmable logic device)
Macro units 256
Logic blocks Programmable logic array based on product item architecture
I/O pins Maximum of 192
Operating voltage 3.3 V core / 5 V I/O resistant
Speed grade -5 (high performance, fastest delay propagation)
Configuration memory Non-alterable EEPROM
Package 256-ball BGA (BC package)
Temperature range Commercial and industrial variants available
Pre-programmability In-system programming (ISP) via JTAG
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Key features of the LC4256C-5F256BC
- High logic density – 256 macro units for processing complex logic designs.
- Low power consumption – suitable for battery-powered or power-sensitive applications.
- ISP via JTAG – supports in-system reprogramming and debugging.
- EEPROM-based configuration – the logic design remains intact even after a power failure.
- Flexible I/O patterns – supports multiple voltage levels, including 5 V surge-resistant inputs.
- High performance – -5 speed ensures faster execution of logic operations.
- Compact design – 256-pin BGA (BC) design offers a high pin count in a small footprint.
LC4256C-5F256BC application areas
The LC4256C-5F256BC is widely used in industries that require programmable logic flexibility and reliability, including:
- Telecommunications – line cards, network devices, and protocol bridges.
- Consumer electronics – multimedia device control logic, games, and peripherals.
- Industrial automation – custom control units, programmable interfaces, and safety logic.
- Automotive systems – diagnostic systems, in-vehicle entertainment systems, and control modules.
- Aerospace and defense – requiring rugged programmable control logic.
Why choose the LC4256C-5F256BC?
- Design flexibility – replaces fixed logic devices and supports evolving design requirements.
- Faster time to market – programmability speeds up development and prototype implementation.
- Non-volatile memory – no external configuration device required.
- Reliability – stable CPLD architecture proven in demanding conditions.
For designers looking for a compromise between CPLD and FPGA, CPLDs such as the LC4256C are the ideal choice for high-speed, low-power deterministic logic, while FPGAs are better suited for complex designs.
Other features
- Lattice Semiconductor ispMACH 4000 series – official product documentation.
- Key differences between CPLD and FPGA – to help you choose the right programmable device.
- DRex Electronics – advanced integrated circuit supplier – your global partner for the purchase of programmable logic and semiconductor components.
✅ LC4256C-5F256BC integrates performance, density, and programmability in a compact package and is the preferred solution for industries requiring flexible digital logic. Whether you are building telecommunications infrastructure, industrial controllers, or embedded systems, this CPLD offers the reliability and programmability that ensure your designs are future-proof.
