This version:
Mar. 3. 1999
Semiconductor
MSC23B2321D-xxBS4/DS4
2,097,152-word x 32-bit DYNAMIC RAM MODULE : FAST PAGE MODE TYPE
DESCRIPTION
The MSC23B2321D-xxBS4/DS4 is a fully decoded, 2,097,152-word x 32-bit CMOS dynamic random access
memory module composed of four 16Mb DRAMs in SOJ packages mounted with eight decoupling capacitors on a
72-pin glass epoxy single-inline package. This module supports any application where high density and large
capacity of storage memory are required.
FEATURES
路 2,097,152-word x 32-bit organization
路 72-pin Single Inline Memory Module
MSC23B2321D-xxBS4 : Gold tab
MSC23B2321D-xxDS4 : Solder tab
路 Single +5V supply 鹵 10% tolerance
路 Input
: TTL compatible
路 Output
: TTL compatible, 3-state
路 Refresh : 1024cycles/16ms
路 /CAS before /RAS refresh, hidden refresh, /RAS only refresh capability
路 Fast page mode capability
PRODUCT FAMILY
Access Time (Max.)
Family
t
RAC
MSC23B2321D-60BS4/DS4
MSC23B2321D-70BS4/DS4
60ns
70ns
t
AA
30ns
35ns
t
CAC
15ns
20ns
Cycle
Time
(Min.)
Operating (Max.)
Standby (Max.)
Power Dissipation
110ns
130ns
1430mW
22mW
1320mW