TC55B4257J ram equivalent, 256k x 4-bit bicmos static ram.
low power dissipation when the device is deselected using chip enable (CE), and has an output enable input (OE) for fast memory access.
The TC55B4257J is suitable for use.
where high speed is required such as cache memory, high speed storage, and main memory. All inputs and outputs are TIL c.
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