AT28LV010-20PI

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Application field and working principle of AT28LV010-20PI

The AT28LV010-20PI is a low voltage nonvolatile memory manufactured by Atmel Corporation. It is a byte-wide nonvolatile memory designed for in-system programming and has a storage capacity of one million bits (128K bytes).

Overview

The AT28LV010-20PI nonvolatile memory is a CMOS nonvolatile memory that is optimized for in-system programming applications. It has a 16-bit address space, providing a storage capacity of one million bits (128K bytes). The device can be programmed byte by byte via an 8-bit wide multiplexed data/address bus. It is organized as one thousand sector addressable units. Each sector is divided into 16 pages, with each page being 512-bytes wide. The power supply required for programming and reading is 2.7V to 5.5V.

Features

The AT28LV010-20PI device includes a vast array of features and support, such as:

• Medium access time of 30 ns
• 1 million bits of memory storage
• Two chip enable signals
• Low voltage operation of 2.7V to 5.5V
• Data throughput rate of 8 bits/second
• 54-byte program buffer
• Byte-oriented address and data bus
• High data retention
• Low power consumption

Applications

The AT28LV010-20PI is suitable for a wide range of embedded application applications, such as digital camera, cellular phones, and automotive. The device is also suitable for industrial and consumer applications, such as data logging, memory expansion and general-purpose flash memory.

Working principle

The AT28LV010-20PI allows in-system programming, which means that the device can be programmed in the end-user\'s target system, instead of having to be programming in a programmer. The programming process is initiated by supplying a single voltage (Vpp) between 5V and 12V to the device. Once programming is initiated, the device will enter Program/Verify Mode, and the process of sending data to the device can begin. Data is sent one byte at a time over an 8-bit wide multiplexed address/data bus. The device can also enter Data Polling Mode, which allows continuous database access at full speed, with no delays from the programming algorithm.

Conclusion

The AT28LV010-20PI nonvolatile memory chip from Atmel Corporation is a byte-wide nonvolatile memory designed for in-system programming applications. It is suitable for a wide range of applications, including digital cameras, cellular phones, automotive, industrial, and consumer applications. The device has an array of features, including a medium access time of 30 ns, one million bits of memory storage, two chip enable signals, a low voltage operation of 2.7V to 5.5V, and a 54-byte program buffer. The programming process is initiated by supplying a single voltage to the device, allowing it to enter Program/Verify or Data Polling Mode, and data is sent one byte at a time over an 8-bit wide multiplexed address/data bus.

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