IS62LV256AL-45TLI

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The IS62LV256AL-45TLI is part of ISSI’s product offering in the low voltage, low power static Random Access Memory (SRAM) market. It is a rapidly increasing segment of the semiconductor market driven by the need to conserve power, reduce cost, and increase storage capacity. The IS62LV256AL-45TLI SRAM is offered in a 28 pin package and operates with a single 3.3V power supply.

The IS62LV256AL-45TLI combines low power consumption with 225 ns access time at 5 V and a total power dissipation of 480 mW at 5 V. This SRAM features a number of features including an on-die programmable time out circuit, an automatic selectable power down mode, an on-chip data retention circuitry and a low voltage detection circuit. The IS62LV256AL-45TLI also offers a variety of options in terms of external memory interface and logic levels.

Due to its low power consumption, low power dissipation and wide variety of built-in features, the IS62LV256AL-45TLI SRAM is well suited for applications that require low power operation and memory storage capacity. These include embedded systems, cellular phones, PDAs, digital cameras, digital video recorder (DVR)s and industrial electronics.

The IS62LV256AL-45TLI features a unique architecture comprising two data registers, two address registers and a chip select register. Each register consists of a number of bus pins, allowing for communication with a host microcontroller. The address and data registers are used to transfer data between the SRAM and the microcontroller, while the chip select register is used to enable the device and initiate a memory transfer.

The IS62LV256AL-45TLI operates by receiving and storing information on a byte-wide bus and storing it in a 256KByte internal memory array. The internal memory array is composed of 32K words of 8 bits each. Each of the 8 bits stored in the array is organized into a byte. This configuration allows for up to 256Kbytes of storage.

To communicate with the IS62LV256AL-45TLI, the host microcontroller must first generate an active low chip select signal, which enables the device. The microcontroller can then set the address and data registers to initiate a write or read operation. During a write operation, information is transferred from the microcontroller to the SRAM via the data pins, while during a read operation, the SRAM transfers the requested data to the microcontroller. Once the operation has completed, the device is disabled by asserting a high chip select signal.

The IS62LV256AL-45TLI is an ideal solution for applications that require low power operation, memory storage capacity and a wide variety of logic levels and external memory interface options. The device offers an efficient solution for embedded systems, consumer electronics and industrial applications.

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