EPM1270T144I5N vs EPM7256SRC208-7

Part Number	EPM1270T144I5N	EPM7256SRC208-7
Category	Embedded - CPLDs (Complex Programmable Logic Devices)	Embedded - CPLDs (Complex Programmable Logic Devices)
Manufacturer	Intel	Altera
Description	IC CPLD 980MC 6.2NS 144TQFP	IC CPLD 256MC 7.5NS 208RQFP
Package	144-LQFP	Tray
Series	MAX® II	MAX® 7000S
Operating Temperature	-40°C ~ 100°C (TJ)	0°C ~ 70°C (TA)
Mounting Type	Surface Mount	Surface Mount
Package / Case	144-LQFP	208-BFQFP Exposed Pad
Supplier Device Package	144-TQFP (20x20)	208-RQFP (28x28)
Programmable Type	In System Programmable	In System Programmable
Delay Time tpd(1) Max	6.2ns	7.5 ns
Voltage Supply - Internal	2.5V, 3.3V	4.75V ~ 5.25V
Number of Logic Elements/Blocks	1270	16
Number of Macrocells	980	256
Number of I/O	116	164
Number of Gates	-	5000

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.
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. 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.
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.