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

Keywords :
27256
Writer : delon |
5 Mar 2011 Sat  
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