MSC2323258A-60BS4
¡ Semiconductor
MSC2323258A-xxBS4/DS4
¡ Semiconductor
MSC2323258A-xxBS4/DS4
2,097,152-Word ¥ 32-Bit DRAM MODULE : FAST PAGE MODE TYPE WITH EDO
1
DESCRIPTION
The Oki MSC2323258A-xxBS4/DS4 is a fully decoded 2,097,152-word ¥ 32-bit CMOS dynamic
random access memory composed of two 16-Mb (1M ¥ 16) DRAMs in SOJ. The mounting of two
DRAMs together with decoupling capacitors on a 72-pin glass epoxy SIMM Package supports
any application where high density and large capacity of storage memory are required.
FEATURES
• 2,097,152-word ¥ 32-bit organization
• 72-pin SIMM
MSC2323258A-xxBS4 : Gold tab
MSC2323258A-xxDS4 : Solder tab
• Single 5 V supply ±10% tolerance
• Input : TTL compatible
• Output : TTL compatible, 3-state, nonlatch
• Refresh : 1024 cycles/16 ms
• CAS before RAS refresh, CAS before RAS hidden refresh, RAS-only refresh capability
• Fast Page Mode with EDO capability
PRODUCT FAMILY
Family
MSC2323258A-60BS4/DS4 2475 mW
MSC2323258A-70BS4/DS4 2255 mW
Access Time (Max.)
t
RAC
60 ns 30 ns 15 ns 110 ns
70 ns 35 ns 20 ns 130 ns
t
AA
t
CAC
Cycle Time
(Min.)
Operating (Max.)
Power Dissipation
Standby (Max.)
22 mW
77
MSC2323258A-xxBS4/DS4 ¡ Semiconductor
PIN CONFIGURATION
MSC2323258A-xxBS4/DS4
(Unit : mm)
* 1
107.95 ±0.2
101.19 Typ.3.38 Typ.
3.18f
19.0 ±0.2
Typ.
10.16
Typ.
6.35
2.03 Typ.
6.35 Typ.
1
1.27 ±0.2
R1.57
95.25
6.35
1.04 Typ.
*1 The common size difference of the board width 12.5 mm of its height is
specified as ±0.2. The value above 12.5 mm is specified as ±0.5.
Pin No.
Pin Name
Pin No.
Pin Name
Pin No.
Pin Name
1VSS16 A4 31 A8
Pin No.
46 NC
2 DQ0 17 A5 32 A9 47 WE
3 DQ16 18 A6 33 RAS3 48 NC
4 DQ1 19 NC 34 RAS2 49 DQ8
5 DQ17 20 DQ4 35 NC 50 DQ24
6 DQ2 21 DQ20 36 NC 51 DQ9
7 DQ18 22 DQ5 37 NC 52 DQ25
8 DQ3 23 DQ21 38 NC 53 DQ10
9 DQ19 24 DQ6 39 V
10 V
CC
25 DQ22 40 CAS0 55 DQ11
SS
54 DQ26
11 NC 26 DQ7 41 CAS2 56 DQ27
12 A0 27 DQ23 42 CAS3 57 DQ12
13 A1 28 A7 43 CAS1 58 DQ28
14 A2 29 NC 44 RAS0 59 V
15 A3 30 Vcc 45 RAS1 60 DQ29
72
Pin Name
CC
6.0 Min.
+0.1
1.27
–0.08
Pin No.
61 DQ13
62 DQ30
63 DQ14
64 DQ31
65 DQ15
66 NC
67 PD1
68 PD2
69 PD3
70 PD4
71 NC
72 V
9.3 Max.
Pin Name
SS
Presence Detect Pins
Pin No.
67 PD1
68 PD2
69 PD3
70 PD4
78
Pin Name
-60BS4/DS4
NC
NC
NC
NC
MSC2323258AMSC2323258A
-70BS4/DS4
NC
NC
V
SS
NC
¡ Semiconductor
BLOCK DIAGRAM
MSC2323258A-xxBS4/DS4
A0 - A9
CAS0
CAS1
WE
A0 - A9
RAS
LCAS
UCAS
WE
OE
V
A0 - A9
SSVCC
DQ0
DQ1
DQ2
DQ15
DQ0
DQ0
DQ1
DQ2
DQ15
DQ16
DQ0
DQ1
DQ2
DQ15
V
DQ0
A0 - A9
CCVSS
A0 - A9
RAS
LCAS
UCAS
WE
OE
1
RAS1RAS0
RAS2
CAS2
CAS3
V
CC
V
SS
RAS
LCAS
UCAS
WE
OE
C8C1
V
SSVCC
DQ1
DQ2
DQ15
DQ17
DQ18
DQ31
DQ1
DQ2
DQ15
V
CCVSS
RAS
LCAS
UCAS
WE
OE
RAS3
79
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