LC4064B-5TN44I vs LC4064B-75TN100C
| Part Number |
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| Category | Embedded - CPLDs (Complex Programmable Logic Devices) | Embedded - CPLDs (Complex Programmable Logic Devices) |
| Manufacturer | Lattice Semiconductor Corporation | Lattice Semiconductor Corporation |
| Description | IC CPLD 64MC 5NS 44TQFP | IC CPLD 64MC 7.5NS 100TQFP |
| Package | Tray | Tray |
| Series | ispMACH® 4000B | ispMACH® 4000B |
| Operating Temperature | -40°C ~ 105°C (TJ) | 0°C ~ 90°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 44-TQFP | 100-LQFP |
| Supplier Device Package | 44-TQFP (10x10) | 100-TQFP (14x14) |
| Programmable Type | In System Programmable | In System Programmable |
| Delay Time tpd(1) Max | 5 ns | 7.5 ns |
| Voltage Supply - Internal | 2.3V ~ 2.7V | 2.3V ~ 2.7V |
| Number of Logic Elements/Blocks | 4 | 4 |
| Number of Macrocells | 64 | 64 |
| Number of I/O | 30 | 64 |
| Number of Gates | - | - |
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1. How do CPLDs integrate with microcontrollers?
CPLDs are often used as auxiliary devices to microcontrollers to handle complex logic control tasks. a CPLD can reduce the burden on the microcontroller, allowing it to focus on core processing while the CPLD handles logic control, signal conditioning, and more.
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2. How to choose the right CPLD?
Factors such as the number of logic cells (number of logic gates), number of I/O pins, power consumption, operating frequency, and package type need to be considered when selecting a CPLD to ensure that the performance needs of the application are met.
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3. How does a CPLD work?
CPLDs implement specific functions by combining logic gates together. The user writes the code in HDL according to the design requirements, maps the logic functions to the CPLD hardware, and the device is configured with circuits and logic to accomplish specific tasks.
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4. Can a CPLD be used as a replacement ASIC?
CPLDs can be used as an alternative to ASICs (Application Specific Integrated Circuits) in certain low-complexity applications, especially in shorter development cycles and more cost-sensitive projects. Although CPLDs are not as efficient as ASICs, they offer flexible programmability.
