LC4064B-5TN44I vs LC4064B-5TN100I

Part Number	LC4064B-5TN44I	LC4064B-5TN100I
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 5NS 100TQFP
Package	Tray	Tray
Series	ispMACH® 4000B	ispMACH® 4000B
Operating Temperature	-40°C ~ 105°C (TJ)	-40°C ~ 105°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	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	-	-

1. What is the difference between CPLD and FPGA?

Both CPLDs and FPGAs are programmable logic devices, but CPLDs typically have lower logic density, consume less power, and are suitable for simple logic tasks. FPGAs, on the other hand, are suitable for complex logic designs with more logic units and more flexible configuration capabilities.
2. What are the main applications of CPLDs?

CPLDs are commonly used to implement controllers, interface circuits, logic state machines, timing control, circuit signal conditioning, and other tasks, and are used in communication equipment, industrial automation, embedded systems, and consumer electronics.
3. How to program CPLD?

CPLDs are typically programmed through a hardware description language (HDL) such as VHDL or Verilog. Developers use development tools such as Xilinx ISE or Altera Quartus to design and simulate, and then burn the program into the CPLD.
4. 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.