Click to expand full text
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 t