l !UNITED TECHNOLOGIES MOSTEK
MEMORY COMPONENTS
65,536 x 1-BIT DYNAMIC RAM
MK4564(P/N/J/E)-15/20
FEATURES
o Recognized...
l !UNITED TECHNOLOGIES MOSTEK
MEMORY COMPONENTS
65,536 x 1-BIT DYNAMIC RAM
MK4564(P/N/J/E)-15/20
FEATURES
o Recognized industry standard 16-pin configuration from
Mostek
o Single +5V (± 10%) supply operation
o On chip substrate bias generator for optimum
performance
o Low power: 300 mW active, max
22 mW standby, max
o 150 ns access time, 260 ns cycle time (MK4564-15)
200 ns access time, 330 ns cycle time (MK4564-20)
o Extended DOUT hold using CAS control (Hidden Refresh)
o Common I/O capability using "early write"
o Read, Write, Read-Write, Read-Modify-Write and Page-
Mode capability
o All inputs TTL compatible, low capacitance, and
protected against static charge
o Scaled POLY 5™ technology
o 128 refresh cycles (2 msec)
Pin 9 is not needed for refresh
DESCRIPTION
The MK4564 is the new generation dynamic RAM. Organized 65,536 words by 1 bit, it is the successor to the industry standard MK4116. The MK4564 utilizes Mostek's Scaled POLY 5 process technology as well as advanced circuit techniques to provide wide operating margins, both internally and to the system user. The use of dynamic circuitry throughout, including the 512 sense
amplifiers, assures that power dissipation is minimized without any sacrifice in speed or internal and external operating margins. Refresh characteristics have been chosen to maximize yield (low cost to user) while maintaining compatibility between dynamic RAM generations.
PIN FUNCTIONS
Multiplexed address inputs (a feature dating back to ...
