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¡¡SemicondSucetormiconductor
MSC23B236A-xxBS8/DS8
MSC23B236A-xxBS8/DS8
2,097,152-Word ¥ 36-Bit DRAM MODULE : FAST PAGE MODE TYPE
DESCRIPTION
The Oki MSC23B236A-xxBS8/DS8 is a fully decoded 2,097,152-word ¥ 36-bit CMOS dynamic random access memory composed of four 16-Mb (1M ¥ 16) DRAMs in SOJ and four 2-Mb (1M ¥ 2) DRAMs in SOJ. The mounting of eight DRAMs together with decoupling capacitors on a 72pin glass epoxy SIMM Package supports any application where high density and large capacity of storage memory are required.
FEATURES
• 2,097,152-word ¥ 36-bit (Parity) organization • 72-pin SIMM
MSC23B236A-xxBS8 : Gold tab MSC23B236A-xxDS8 : 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 capability
PRODUCT FAMILY
Family MSC23B236A-60BS8/DS8 MSC23B236A-70BS8/DS8
Access Time (Max.)
tRAC 60 ns
tAA 30 ns
tCAC 15 ns
70 ns 35 ns 20 ns
Cycle Time
Power Dissipation
(Min.) Operating (Max.) Standby (Max.)
110 ns 130 ns
3410 mW 3080 mW
44 mW
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MSC23B236A-xxBS8/DS8
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PIN CONFIGURATION MSC23B236A-xxBS8/DS8
3.38 ±0.13
*1 107.95 ±0.2
101.19 Typ.
(Unit : mm) 9.3 Max.
f 3.18
25.4 ±0.13
10.16 ±0.13
6.35 ±0.13
2.03 ±0.13
1
6.35 Typ.
1.27 ±0.1
R1.57
6.35
95.25
72 5.7 Min.
1.04 Typ.
1.27
+0.1 –0.08
*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
1 VSS 2 DQ0 3 DQ18 4 DQ1 5 DQ19 6 DQ2 7 DQ20 8 DQ3 9 DQ21 10 VCC 11 NC 12 A0 13 A1 14 A2 15 A3
Pin No. Pin Name 16 A4 17 A5 18 A6 19 NC 20 DQ4 21 DQ22 22 DQ5 23 DQ23 24 DQ6 25 DQ24 26 DQ7 27 DQ25 28 A7 29 NC 30 VCC
Pin No. Pin Name
31 A8 32 A9 33 RAS3 34 RAS2 35 DQ26 36 DQ8 37 DQ17 38 DQ35 39 VSS 40 CAS0 41 CAS2 42 CAS3 43 CAS1 44 RAS0 45 RAS1
Pin No. Pin Name
46 NC 47 WE 48 NC 49 DQ9 50 DQ27 51 DQ10 52 DQ28 53 DQ11 54 DQ29 55 DQ12 56 DQ30 57 DQ13 58 DQ31 59 VCC 60 DQ32
Pin No. Pin Name 61 DQ14 62 DQ33 63 DQ15 64 DQ34 65 DQ16 66 NC 67 PD1 68 PD2 69 PD3 70 PD4 71 NC 72 VSS
Presence Detect Pins
Pin No.
67 68 69 70
Pin Name
PD1 PD2 PD3 PD4
MSC23B236A -60BS8/DS8
NC NC NC NC
MSC23B236A -70BS8/DS8
NC NC VSS NC
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MSC23B236A-xxBS8/DS8
BLOCK DIAGRAM
A0 - A9 CAS0 CAS1 WE
RAS0
A0 - A9 RAS LCAS UCAS WE OE
VSS
DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8
DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15
DQ16 VCC
DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7
DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 DQ16
DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8
DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15
DQ16 VCC
A0 - A9 RAS LCAS
UCAS WE OE
VSS
RAS2
A0 - A9 RAS CAS1 CAS2 WE OE
VSS
DQ1 DQ8
DQ1
DQ2 DQ17 DQ2
VCC VCC
A0 - A9 RAS CAS1 CAS2 WE OE
VSS
A0 - A9 RAS LCAS UCAS WE OE
VSS
DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8
DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15
DQ16 VCC
DQ18 DQ19 DQ20 DQ21 DQ22 DQ23 DQ24 DQ25
DQ27 DQ28 DQ29 DQ30 DQ31 DQ32 DQ33 DQ34
DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8
DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15
DQ16 VCC
A0 - A9 RAS LCAS
UCAS WE OE
VSS
CAS2 CAS3
VCC C1
VSS
A0 - A9 RAS CAS1 CAS2 WE OE
VSS
DQ1 DQ26 DQ1 DQ2 DQ35 DQ2
VCC VCC
A0 - A9 RAS CAS1 CAS2 WE OE
VSS
C8
RAS1 RAS3
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MSC23B236A-xxBS8/DS8
¡ Semiconductor
ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings
Parameter
Voltage on Any Pin Relative to VSS Voltage VCC Supply Relative to VSS Short Circuit Output Current Power Dissipation Operating Temperature Storage Temperature
Symbol
VIN, VOUT VCC IOS PD Topr Tstg
Rating –1.0 to 7.0 –1.0 to 7.0
50 9.2 0 to 70 –40 to 125
Unit V V mA W °C °C
Note: Permanent device damage may occur if ABSOLUTE MAXIMUM RATINGS are exceeded. Functional operation should be restricted to the conditions as detailed in the operational sections of this data sheet. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter
Power Supply Voltage
Input High Voltage Input Low Voltage
Symbol
VCC VSS VIH VIL
Min. 4.5 0 2.4 –1.0
Typ. 5.0 0 — —
Max. 5.5 0 6.5 0.8
(Ta = 0°C to 70°C) Unit V V V V
Capacitance
Parameter
Input Capacitance (A0 - A9) Input Capacitance (WE) Input Capacitance (RAS0 - RAS3) Input Capacitance (CAS0 - CAS3) I/O Capacitance (DQ0 - DQ35)
Symbol
CIN1 CIN2 CIN3 CIN4 CDQ
Typ. — — — — —
Note : Capacitance measured with Boonton Meter.
Max. 53 65 20 35 20
(Ta = 25°C, f = 1 MHz) Unit pF pF pF pF pF
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MSC23B236A-xxBS8/DS8
DC Characteristics
Parameter
Symbol Condition
0 V £ VI £ 6.5 V;
Input Leakage Current ILI All other pins not
under test = 0 V
Output Leakage Current
ILO
DOUT disable 0 V £ VO £ 5.5 V
Output High Voltage
VOH IOH = –5.0 mA
Output Low Voltage
VOL IOL = 4.2 mA
Average Power Supply Current (Operating)
RAS, CAS cycling, ICC1 tRC = Min.
Power Supply Current (Standby)
Average Power
RAS, CAS = VIH ICC2 RAS, CAS
≥ VCC –0.2 V RAS cycling,
Supply Current (RAS-only .