27C256R eprom equivalent, 256k 32k x 8 otp cmos eprom.
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Fast Read Access Time - 45 ns Low Power CMOS Operation 100 µA max. Standby 20 mA max. Active at 5 MHz JEDEC Standa.
The AT27C256R is a low-power, high performance 262,144 bit one-time programmable read only memory (OTP EPROM) organized 32K by 8 bits. It requires only one 5V power supply in normal read mode operation. Any byte can be accessed in less than 45 ns, el.
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