LC4064B-5TN44I vs LC4064B-75TN44C

Part Number	LC4064B-5TN44I	LC4064B-75TN44C
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 44TQFP
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	44-TQFP
Supplier Device Package	44-TQFP (10x10)	44-TQFP (10x10)
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	30
Number of Gates	-	-

1. 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.
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.
3. Do CPLDs have high power consumption?

Compared to FPGAs, CPLDs typically have lower power consumption and are suitable for battery-powered or applications that require low power consumption. However, the exact power consumption still depends on the CPLD model used and the logic complexity in the application.
4. How does a CPLD's memory work?

CPLDs typically use non-volatile memory (such as Flash or EEPROM) to store configuration data, so the device maintains the programmed logic even after a power failure. This allows the CPLD to quickly boot up and return to a previously configured state.