AT27C400-90PC

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Memory Type:	Non-Volatile
Memory Format:	EPROM
Technology:	EPROM - OTP
Memory Size:	4Mb (512K x 8, 256K x 16)
Write Cycle Time - Word, Page:	--
Access Time:	90ns
Memory Interface:	Parallel
Voltage - Supply:	4.5 V ~ 5.5 V
Operating Temperature:	0°C ~ 70°C (TC)
Mounting Type:	Through Hole
Package / Case:	40-DIP (0.600", 15.24mm)
Supplier Device Package:	40-PDIP
Base Part Number:	AT27C400

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AT27C400-90PC Application Field and Working Principle Memory plays an important role in various highly advanced technology applications. AT27C400-90PC is a kind of low power static RAM which was widely used in advanced embedded system applications. It is an integrated device suitable for integration in mass production consumer products, industry control, communication products and other fields. The AT27C400-90PC is used to store a wide variety of data, including text, sound and video. This memory device can provide up to 512K bits (64KB) of non-volatile memory at minimum power consumption, making it ideal for design in space-limited consumer and industrial products. It features 4-bit wide byte-wide access with byte-wide control and data bus.It has fast access and read speeds, and can operate in both 5V and 3V supply voltage options. It also offers other features such as automatic write protection, power-down mode and software/hardware data protection.The device is powered by a 5V or 3V source. The operating voltage can be 3.3V, 2.7V, and even 1.65V. The access time of the device is 90ns, which makes it one of the fastest random access memories. The AT27C400-90PC is available in the form of a 40-pin DIP package in a variety of shapes and sizes.The AT27C400-90PC adopts non-volatile memory technology. It can store data even after power off, and its data retention time can be up to 100 years. It can also be programmed with various controls and data registers as needed.The AT27C400-90PC has two modes of operation: read-only memory (ROM) and programmable read-only memory (PROM). In the ROM mode, the memory is preloaded with a fixed set of instructions and data provided by the manufacturer. In the PROM mode, the user can program their own instructions. The device is programmed by the four-level voltage EPROM method and is programmable at the lowest voltage of 1.65V.In addition, the AT27C400-90PC is equipped with a write protection switch in order to safely store data and prevent accidental erasures. The device can be manually or electronically locked using the write-enable switch.Overall, the AT27C400-90PC is an ideal choice for embedded system applications due to its fast access speed and low power consumption. It provides a long-term solution for data storage and is suitable for use in a wide variety of applications. It is also easy to program and provides an inexpensive and efficient solution for long-term data storage and applications.

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