93C86C/W15K

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The 93C86C/W15K is a low cost, 1,048,576 bit, serial electrically erasable semiconductor memory. It is organized in 512K addresses of 16 bits each and uses a two-wire Serial Peripheral Interface (SPI) suitable for microcontroller, microprocessor and digital signal controller applications. This memory has a sequential and page write that allows up to 32 locations to be written at once. 

The 93C86C/W15K is a versatile memory and can be used for multiple types of applications including data storage and communications, automotive, and consumer goods. In data storage and communications, the 93C86C/W15K is used for encryption, communication protocols and data logger applications. In automotive applications, the 93C86C/W15K is used for airbag activation systems and keyless entry modules. Finally, in consumer goods, the 93C86C/W15K is used for game and toy applications. 

The 93C86C/W15K operates in both SPI and I2C modes and is a low powered device with maximum operating current from the Vcc supply of 15mA. It offers an active current of 10mA which is typical for a 2-wire serial memory device. The 93C86C/W15K also has a maximum standby current of 2mA when the SPI or I2C is inactive, making it an ideal choice for battery-operated applications.

The 93C86C/W15K uses a simple two-wire interface for serial communication. It has the typical four state operations, Write Enable (WE), Read Enable (RE), Chip Select (CS) and Clock (SCK). When the WE pin is asserted, data transfer will begin. Data is written on the rising edge of the clock and read on the falling edge. The chip select pin is used to activate the chip and is active low; when the pin is de-asserted, the chip will enter a power down mode.

The 93C86C/W15K can store up to 512Kbits of data and data can be stored At Block, line and page levels. Blocks are 4KB in size, lines are 32 bytes in size, and pages are 64 bytes in size. The device offers a write protection feature for secure operations. This feature can be enabled or disabled via the WE pin. When the write protection is enabled, data is prevented from being written to or erased from the memory or a particular memory location.

The 93C86C/W15K also offers an auto-address increment feature which is used to increase the speed of data transmission. This feature is enabled via the WE pin and consists of the internal address counter which is incremented each time a byte of data is transferred. This means that the user does not have to keep track of the current address and write data at the right address.

In summary, the 93C86C/W15K is a low cost, low power, 1,048,576-bit serial electrically erasable semiconductor memory. It has versatile applications in automotive, consumer goods, and data storage and communications applications making it ideal for a variety of applications. It offers a write protection feature, an auto-address increment feature and uses a simple two-wire SPI/I2C interface for serial communication.

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