NM93C66EM8

NM93C66EM8 belongs to memory chips, it is designed as a 16-bit nonvolatile CMOS EEPROM. Compared to traditional EEPROMs, with advantage of low power dissipation and excellent retention qualities, the NM93C66EM8 is well suit for products those need memory chip, such as car computer, UPS and industrial products etc. This paragraph will talk about its application field and working principle.

The NM93C66EM8 gives you the low power required for portable and battery-powered systems, such as car computer, UPS and industrial products, not like the SRAM. It is a great replacement for the use of NVSRAM, for applications requiring greater endurance and data retention. Other features such as 16-bit extended address and 8-bit wide data bus can make the data-transferring process more easier.

The device has two operating modes, asynchronous and synchronous. In the asynchronous and standard write mode, all the writes operate on a byte-by-byte basis and addresses are incremented after each byte thereon. Asynchronous reads and writes can be done with standard write cycle time up to 1 microsecond. In the synchronous write mode, the serial-, byte- and word-modes all operate with the same programmed write cycle times, as low as 5 nanoseconds. It has two selectable write protect options.

The 3-wire serial interface of NM93C66EM8 is an extremely versatile and useful features. With this feature, the read and write can be controlled via the chip select, clock and data inputs. The programming and the erasing of the memory will be done through an external 3-pin control line. The master device of the serial interface is always a microcontroller. The interface can also support several chips at the same time for multi-chip operation or simulatenous read/write operation.

In particular, NM93C66EM8 has high resistance to ambient radiation, so it is ideal for radio frequency smart meter application. It can endure the pulse noise of the radio frequency, its data can be kept not to be lost. Overall, due its support of high reliability of data retension and wide operation temperature range(-40℃ to 105℃), it is great choice for device which demand high performance, high security and low cost.

In conclusion, NM93C66EM8 as a 16-bit nonvolatile CMOS EEPROM has many advantages, such as low power dissipation, excellent retention qualities, 16-bit extended address and 8-bit wide data bus and 3-wire serial interface. All these features can support it very well to compatible with variety of application fields, like car computer, UPS, industrial products, RF smart meter and etc.