93C86CT-E/ST

The 93C86CT-E/ST is a static, 16-bit mask programmable, read only memory chip produced by Microchip Technologies. It is suited for a wide array of applications and is remarkably easy to use.

Applications

The 93C86CT-E/ST can be used in a variety of systems and applications. For example, it can be used in address decoding, such as in system controllers, routers and network controllers. It can also be used for LED control, memory and disk drive addressing and control. Additionally, the chip can be employed for address comparison, gate arrays, instrumentation, and serial and parallel port acquisition.

Features

The 93C86CT-E/ST offers impressive and advantageous features, such as an extremely fast erase/write cycle time of 250ms, and it outperforms many other industry standard ROMs. It also offers a power down or stand-by feature with a maximum consumption of only 0.5μA, plus high data retention capability with a minimum data retention voltage of 1.5V. On top of that, the chip is tested and approved in accordance to UL, CUL, VDE and other safety requirements.

Pin Out

The 93C86CT-E/ST includes a total of 16 pins, with one used for pin number 1, nine used data pins-A0 to A8, three used for chip select-CS1, CS2 and CS3, one used for write enable-WE, one used for output enable-OE, and one used for ground.

Working Principle

The 93C86CT-E/ST utilizes a self-timed write cycle using a negative edge triggered write enable (WE) signal. Data is written into the cells with the CS pins being active low. The data is then held in the cells after the write cycle is finished.

In order to read data from the chip, both CS pins must go low and the address pins (AO-A8) must provide the desired address. The output enable (OE) must be low while the data pins will output the data bits. The data is retained by the device even after the power is removed.

Conclusion

The 93C86CT-E/ST is an incredibly versatile read-only memory chip that can be used for a wide variety of applications. It offers many great features, such as a fast erase/write cycle time and a low power consumption, making it a cost-effective choice for many systems.