MSC2343257D-70DS8
Semiconductor
MSC2343257D-xxBS8/DS8
4,194,304-word x 32-b i t DYNAMIC RAM MODULE : FAST PAGE MODE TYPE WITH EDO
This vers i on: Mar. 8. 1999
DESCRIPTION
The MSC2343257D-xxBS8/DS8 is a fully decoded, 4,194,304-word x 32-bit CMOS dynamic random access
memory module composed of eight 16Mb DRAMs (4Mx4) in SOJ packages mounted with eight decoupling
capacitors on a 72-pin glass epoxy single in-line package. This module supports any applicat ion where high density
and large capaci ty of storage m emory are required.
FEATURES
· 4,194,304-word x 32- bit organization
· 72-pin Single In-Line Memory Module
MSC2343257D-xxBS8 : Gold tab
MSC2343257D-xxDS8 : Solder t ab
· Singl e +5V supply ± 10% tolerance
· Input : TTL compatible
· Output : TTL compatible, 3-state
· Refresh : 2048cycles/32ms
· /CAS before /RAS refresh, hidden refr esh, /RAS only refresh capability
· Fast page mode with EDO capability
· Multi-bit test mode capability
PRODUCT FAMILY
Access Time (Max. ) Power Dissipation
Family
t
RAC
t
AA
t
CAC
Cycle
Time
(Min.)
Operating (Max.) Standby (Max.)
MSC2343257D-60BS8/DS8 60ns 30ns 15ns 104ns 4840mW
MSC2343257D-70BS8/DS8 70ns 35ns 20ns 124ns 4400mW
44mW
Semiconductor MSC2343257D
MODULE OUTLINE
1
72
R1.57
6.35
1.04Typ.
1.27±0.1
95.25
2.03Typ.
6.35Typ.
Typ.
6.35
Typ.
10.16
φ
3.18
25.4±0.2
101.19Typ.
107.95±0.2
*1
3.38Typ.
3.17Min.
5.28Max.
+0.1
-0.08
1.27
(Unit : mm )
MSC2343257D-xxBS8/DS8
*1 The common size difference of the board width 12.5mm of its height is specified as ±0.2.
The value above 12.5mm is specified as ±0.5.
Semiconductor MSC2343257D
PIN C ONFIGURATION
Pin No. Pin Name Pin No. Pin Nam e Pin No. Pin Nam e Pin No. Pin Nam e
1V
SS
19 A10 37 NC 55 DQ11
2 DQ0 20 DQ4 38 NC 56 DQ27
3 DQ16 21 DQ20 39 V
SS
57 DQ12
4 DQ1 22 DQ5 40 /CAS0 58 DQ28
5 DQ17 23 DQ21 41 /CAS2 59 V
CC
6 DQ2 24 DQ6 42 /CAS3 60 DQ29
7 DQ18 25 DQ22 43 /CAS1 61 DQ13
8 DQ3 26 DQ7 44 /RAS0 62 DQ30
9 DQ19 27 DQ23 45 NC 63 DQ14
10 V
CC
28 A7 46 NC 64 DQ31
11 NC 29 NC 47 /WE 65 DQ 1 5
12 A0 30 V
CC
48 NC 66 NC
13 A1 31 A8 49 DQ8 67 PD1
14 A2 32 A9 50 DQ24 68 PD2
15 A3 33 NC 51 DQ9 69 PD3
16 A4 34 / RAS2 52 DQ25 70 PD4
17 A5 35 NC 53 DQ10 71 NC
18 A6 36 NC 54 DQ26 72 V
SS
Presence Detect Pins
Pin No. Pin Name
MSC2343257D
-60BS8/DS8
MSC2343257D
-70BS8/DS8
67 PD1 V
SS
V
SS
68 PD2 NC NC
69 PD3 NC V
SS
70 PD4 NC NC
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