CY7C136-25NXCT

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Memory

CY7C136-25NXCT has multiple functions as static RAM, dual port RAM, shift registers, and memory mapping functions, making it unique and one of its kind.

The CY7C136-25NXCT is a static random access memory device (SRAM) manufactured by Cypress Semiconductor Corp. It is composed of 4K x 8 bits of on-chip CMOS RAM, with a power supply voltage range between a minimum of 2.7 volts and a maximum of 5 volts. It is a very low power consumption device, with standby current rating of 10 µA max, and access time of 40 ns max.

CY7C136-25NXCT is suitable for any microcontroller or embedded system application which requires static RAM, dual port RAM, shift registers, or memory mapping functions. It is particularly well-suited for applications that require multiple access bus operations simultaneously, for example, any application that requires two-way communication with a host processor and a peripheral device.

The working principle of CY7C136-25NXCT is quite simple. It is designed to interface with a microcontroller or embedded system with multiple access ports, each of which has its own multiplexed address and control lines. When an address is received by the CY7C136-25NXCT, a valid address indicator is driven and an address buffer stores the information. The address is then compared with the content of the address buffer and, if a match is found, the valid address indicator is cleared, the read/write signals are driven, and the appropriate operation is executed.

In addition, the CY7C136-25NXCT is designed with multiple I/O functions. These functions allow the user to interface any single port memory device with multiple external peripherals, such as UART, I2C, SPI, PIO and timer. The I/O functions also offer flexibility in connecting external devices, as they offer various levels of bus width such as a multiplexed 8-bit input and output, multiplexed 16-bit input and output, multiplexed 32-bit input and output, etc.

The CY7C136-25NXCT also features an onboard oscillator, which provides a reference frequency for synchronous operations. The oscillator has an adjustable frequency range from 1 MHz to 6 MHz, allowing users to tailor its frequency to match their own requirements. Furthermore, the CY7C136-25NXCT also offers built-in stack operations, providing flexibility for users in applications requiring multi-level stack operation.

In short, the CY7C136-25NXCT provides multiple functions with low power consumption and high integration, making it an ideal solution for a wide range of application, including static RAM, dual port RAM, shift registers, memory mapping functions, and much more. It is also very easy to use, and its onboard oscillator, along with its multiple I/O functions, provide flexibility and convenience in applications such as UART, I2C, SPI, PIO, and timer.

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