27256

M27256
NMOS 256 Kbit (32Kb x 8) UV EPROM

FAST ACCESS TIME: 170ns

EXTENDED TEMPERATURE RANGE

SINGLE 5V SUPPLY VOLTAGE

LOW STANDBY CURRENT: 40mA m

TTL COMPATIBLE DURING READ a PROGRAM

FAST PROGRAMMING ALGORITHM

ELECTRONIC SIGNATURE

PROGRAMMING VOLTAGE: 12V

D e s c r i p t  i o n :

The M27256 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.

logic diagram:

Pin Connection diagram