M27256

DUAL 2宽2输入和/或反转门 DUAL 2 WIDE 2 INPUT AND/OR INVERT GATE

DESCRIPTION

The is a 262,144 bit UV erasable and electrically programmable memory EPROM. It is organized as 32.768 words by 8 bits. The M27256 is housed in a 28 pin Window Ceramic Frit-Seal Dual-in-Line package. The transparent lid allows the user to expose the chip to ultraviolet light to erase the bit pattern. A new pattern can then be written to the device by following the programming procedure.

■FAST ACCESS TIME: 170ns

■EXTENDED TEMPERATURE RANGE

■SINGLE 5V SUPPLY VOLTAGE

■LOW STANDBY CURRENT: 40mA max

■TTL COMPATIBLE DURING READ and PROGRAM

■FAST PROGRAMMING ALGORITHM

■ELECTRONIC SIGNATURE

■PROGRAMMING VOLTAGE: 12V