CY7C09449PVA-AC

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CY7C09449PVA-AC is a high-speed synchronous 8-bit 64K RAM that is manufactured and sold by Cypress Semiconductor Corporation. The memory is 67-lead Surface Mount Technology (SMT) and operates at 3.3V. It includes automatic selection of either fast asynchronous write timing or synchronous write timing, which can be done by pulling up or down the chip\'s WE pin with a 3-stated control. It also has an integrated self-timer and a two-stage write-protect circuit for the full 64K address range. Furthermore, the memory can tolerate a wide range of supply voltages of 2.7 to 3.6V and operating temperature from -45°C to 85°C.

The CY7C09449PVA-AC offers easy interfacing with any 8-bit microcontroller. It offers both 8-bit and 16-bit microprocessors support, with a monolithic memory solution including a 64K RAM, a latch, and control logic on-chip. Other features include high-speed write capability, access time of 10 ns, and a no-wait-state write time of 25 ns. It also has a current consumption of 70 mA(max), a read cycle time of 70 ns, and synchronous write cycle time of 70 ns.

In terms of application fields, the CY7C09449PVA-AC is an ideal memory solution for embedded applications such as Industrial Control, Factory Automation, Computing, Medical Devices, Security Systems, Networking, and Telecommunications. It is also suitable for automotive, mobile, gaming, and consumer electronics.

In terms of working principle, the CY7C09449PVA-AC memory is organized as a 64K by 8 bit RAM, with each RAM location storing 1 byte of data. It has three main pins for operation, i.e., the Address (A), the Data (D), and the Write Enable (WE). The address pin is 8-bit wide and provides the address of the RAM location that is to be read or written. The Data pin is 8-bit wide and provides the data to be written or the data read from the addressed RAM location. The Write Enable pin is an active low pin that, when pulled low, enables writing to the addressed RAM location.

Also, the CY7C09449PVA-AC has a write protection and self-timing feature. The write protect feature prevents the memory locations from being written when it is not required. This is done by activating the chip’s WE pin with a 3-stated control. A self-timer feature is also included for faster write operation and can run continuously with the WE pin. The self-timer can be used to activate and deactivate the WE pin as needed.

In conclusion, the CY7C09449PVA-AC is a high-speed synchronous 8-bit 64K RAM that is ideal for a wide range of applications, such as Industrial Control, Factory Automation, Computing, Medical Devices, Security Systems, Networking, and Telecommunications. It is also suitable for automotive, mobile, gaming, and consumer electronics. Furthermore, it offers features such as high-speed write capability, access time of 10 ns, and a no-wait-state write time of 25 ns. With its integrated self-timer and a two-stage write-protect circuit, the memory is highly reliable and durable.

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