Semiconductor
MSC23237D-xxBS18/DS18
2,097, 152- word x 36- bit DY NAMIC RAM MO DULE : FAST PAGE MODE TY P E
This vers ion: Mar. 3. 1999
DESCRIPTION
The MSC23237D-xxBS18/DS18 is a fully decoded, 2,097,152-word x 36-bit CMOS dynamic random access
memory module composed of eighteen 4Mb DRAMs in SOJ packages mounted with eighteen decoupling capacitors
on a 72-pi n glass epox y si ngle- inl i ne package. Thi s modul e supports any appl ic ati on where hi gh densit y and lar ge
capacity of stor age memory ar e r equired.
FEATURES
· 2, 097,152-word x 36- bit or ganizat ion
· 72-pin Single Inline Memory M odule
MSC23237D-xxBS18 : Gold tab
MSC23237D-xxDS18 : S older t ab
· Singl e +5V supply ± 10% tol er anc e
· I nput : T TL compatible
· Output : TTL compatible, 3-state
· Refresh : 1024cycles/16ms
· / CA S befor e /RAS refr esh, hidden refresh, /RAS only refresh capability
· F ast page mode capability
· Multi-bit t est mode capability
PRODUCT FAMILY
Access Time (Max. ) Power Dissipat i on
Family tRAC tAA tCAC tOEA
Cycle
Time
(Min.) Operating (Max.) Standby (Max.)
MSC23237D-60BS18/DS18 60ns 30ns 15ns 15ns 110ns 4703mW
MSC23237D-70BS18/DS18 70ns 35ns 20ns 20ns 130ns 4208mW 99mW
Semiconductor MSC23237D
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
(
3.18
25.4±0.2
101.19Typ.
107.95±0.2*1
3.38Typ.
3.7Min. 6.7Min.
9.3Max.
+0.1
-0.08
1.27
(Un i t : m m)
MSC23237D-xxBS18/DS18
*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 MSC23237D
PIN C ONFIGURATI ON
Pin No. Pin Na me Pin No. Pin Na me Pin No. Pin Na me Pin No. Pin Na me
1V
SS 19 /OE 37DQ1955DQ28
2 DQ0 20 DQ8 38 DQ20 56 DQ29
3DQ121DQ939V
SS 57 DQ30
4 DQ2 22 DQ10 40 /CAS0 58 DQ31
5 DQ3 23 DQ11 41 NC 59 VCC
6 DQ4 24 DQ12 42 NC 60 DQ32
7 DQ5 25 DQ13 43 /CAS1 61 DQ33
8 DQ6 26 DQ14 44 /RAS0 62 DQ34
9 DQ7 27 DQ15 45 /RAS1 63 DQ35
10 VCC 28 A7 46 DQ21 64 NC
11 NC 29 DQ16 47 /WE 65 NC
12 A0 30 VCC 48 VSS 66 NC
13 A1 31 A8 49 DQ22 67 PD1
14 A2 32 A9 50 DQ23 68 PD2
15 A3 33 NC 51 DQ24 69 PD3
16 A4 34 NC 52 DQ25 70 PD4
17 A5 35 DQ17 53 DQ26 71 NC
18 A6 36 DQ18 54 DQ27 72 VSS
Presence Det ect P ins
Pin No. Pin Na me MSC23237D
-60BS18/DS18 MSC23237D
-70BS18/DS18
67 PD1 NC NC
68 PD2 NC NC
69 PD3 NC VSS
70 PD4 NC NC
Semiconductor MSC23237D
BLOCK DIAGRAM
/WE
A0-A9
DQ
DQ
DQ0
DQ
DQ
/OE
V
SS
/RAS
/CAS
/WE
V
CC
A0-A9
DQ
DQ
DQ
DQ
/OE
V
CC
/RAS
/CAS
/WE
V
SS
DQ1
DQ2
DQ3
A0-A9
DQ
DQ8
DQ
/OE
V
SS
/RAS
/CAS
/WE
V
CC
A0-A9
DQ
DQ
/OE
V
CC
/RAS
/CAS
/WE
V
SS
DQ9
V
CC
V
SS
C1-C18
A0-A9
DQ
DQ
DQ
DQ
/OE
V
CC
/RAS
/CAS
/WE
V
SS
A0-A9
DQ
DQ
DQ
DQ
/OE
V
SS
/RAS
/CAS
/WE
V
CC
DQ4
DQ5
DQ6
DQ7
A0-A9
DQ
DQ
DQ
DQ
/OE
V
CC
/RAS
/CAS
/WE
V
SS
A0-A9
DQ
DQ
DQ
DQ
/OE
V
SS
/RAS
/CAS
/WE
V
CC
DQ12
DQ13
DQ14
DQ15
A0-A9
DQ
DQ
DQ
DQ
/OE
/RAS
/CAS
/WE
A0-A9
DQ
DQ
DQ
DQ
/OE
/RAS
/CAS
/WE
DQ16
DQ17
DQ18
DQ19
A0-A9
DQ
DQ
DQ20
DQ
DQ
/OE
/RAS
/CAS
/WE
A0-A9
DQ
DQ
DQ
DQ
/OE
/RAS
/CAS
/WE
DQ21
DQ22
DQ23
V
SS
V
CC
V
CC
V
SS
V
CC
V
SS
V
SS
V
CC
A0-A9
DQ
DQ
DQ24
DQ
DQ
/OE
/RAS
/CAS
/WE
A0-A9
DQ
DQ
DQ
DQ
/OE
/RAS
/CAS
/WE
DQ25
DQ26
DQ27
V
SS
V
CC
V
CC
V
SS
A0-A9
DQ
DQ28
DQ
/OE
V
SS
/RAS
/CAS
/WE
V
CC
A0-A9
DQ
DQ
/OE
V
CC
/RAS
/CAS
/WE
V
SS
DQ29
A0-A9
DQ
DQ
DQ32
DQ
DQ
/OE
/RAS
/CAS
/WE
A0-A9
DQ
DQ
DQ
DQ
/OE
/RAS
/CAS
/WE
DQ33
DQ34
DQ35
V
SS
V
CC
V
CC
V
SS
/OE
DQ
DQ
DQ10
DQ11
DQ
DQ
DQ
DQ30
DQ
DQ31
DQ
DQ
Semiconductor MSC23237D
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
Parameter Symbol Rating Unit
Volt age on Any Pin Relat i ve to VSS VIN, VOUT -1.0 to +7.0 V
Vol t age on VCC Supply Relative to V SS VCC -1.0 to +7.0 V
Short Ci r cuit Output Current IOS 50 mA
Power Dissipation PD *18W
Operating Temperature TOPR 0 to +70 °C
Storage Temperature TSTG - 40 to +125 °C
* Ta = 25°C
Recommen ded O perating Conditions ( Ta = 0°C to +70°C )
Parameter Symbol Min. Typ. Max. Unit
VCC 4.5 5.0 5.5 V
Power Suppl y Volt age VSS 000V
Input High Volt age VIH 2.4 - 6.5 V
Input Low Vol tage VIL -1.0 - 0.8 V
Capacitance ( VCC = 5V ± 10%, Ta = 25°C, f = 1 MHz )
Parameter Symbol Typ. Max. Unit
Input Capacitance (A0 - A9) CIN1 - 122 pF
Input Capaci t ance (/RAS0, /RAS1, /CAS0, / CAS1) C IN2 -73pF
Input Capaci t ance (/WE, /OE) CIN3 - 140 pF
I/O Capacitance (DQ0 - DQ35) CDQ -20pF
Note: Capaci tance measured wi th Boonton M eter.
Semiconductor MSC23237D
DC Characteristics (VCC = 5V ± 10% , Ta = 0°C to +70°C )
MSC23237D
-60BS18/DS18 MSC23237D
-70BS18/DS18
Parameter Symbo
lCondition
Min. Max. Min. Max.
Unit Note
Input Leakage Current ILI
0V ≤ VIN ≤ 6.5V;
All ot her pins not
under test = 0V -180 180 -180 180 µA
Out put Leakage Current ILO DQ disable
0V ≤ VOUT ≤ 5.5V -20 20 -20 20 µA
Out put Hi gh Volt age VOH IOH = -5.0mA 2.4 VCC 2.4 VCC V
Out put Low Vol tage VOL IOL = 4.2mA 0 0.4 0 0.4 V
Average Power Suppl y Curr ent
(Operating) ICC1 /RAS, /CAS cycling,
tRC = Min. - 855 - 765 mA 1, 2
/RAS, /CAS = VIH -36-36mA1
Power Suppl y Curr ent
(Standby) ICC2 /RAS, /CAS
≥ VCC -0.2V -18-18mA1
Average Power Suppl y Curr ent
(/RAS only r efresh) ICC3
/RAS cy c lin g ,
/CAS = VIH,
tRC = Min. - 855 - 765 mA 1, 2
Average Power Suppl y Curr ent
(/CAS before /RAS refresh) ICC6 /RAS cyc lin g,
/CAS before /RAS - 855 - 765 m A 1, 2
Average Power Suppl y Curr ent
(Fast Page Mode) ICC7
/RAS = VIL,
/CAS cy c lin g ,
tPC = Min. - 675 - 585 mA 1, 3
Notes: 1. ICC Max. is specified as ICC for output open condition.
2. Address can be changed once or less whil e /RAS = VIL.
3. Address can be changed once or less whil e /CAS = VIH.
Semiconductor MSC23237D
AC Characteristics (1/2) (VCC = 5V ± 10% , Ta = 0°C to +70°C ) Note: 1, 2, 3, 11, 12
MSC23237D
-60BS18/DS18 MSC23237D
-70BS18/DS18
Parameter Symbol
Min. Max. Min. Max.
Unit Note
Random Read or Wr ite Cycle Time tRC 110 - 130 - ns
Read Modify Wri t e Cycle Ti me tRWC 150 - 180 - ns
Fast Page Mode Cycle Time tPC 40 - 45 - ns
Fast Page Mode Read Modify Write Cycle Time tPRWC 80 - 95 - ns
Access Time from /RAS tRAC - 60 - 70 ns 4, 5, 6
Access Time from /CAS tCAC - 15 - 20 ns 4, 5
Access Time from Colum n Address tAA - 30 - 35 ns 4, 6
Access Time from /CAS Precharge tCPA - 35 - 40 ns 4
Access Time from /OE tOEA - 15 - 20 ns 4
Out put Low Impedance Tim e from /CAS t CLZ 0-0-ns4
/CAS to Data Output Buffer Turn-off Delay Time t OFF 0 15 0 20 ns 7
/OE to Data Output Buffer Turn-off Delay Ti me tOEZ 0 15 0 20 ns 7
Transi tion Time tT3 50 3 50 ns 3
Refr esh Period tREF -16-16ms
/RAS Pr echarge Time tRP 40 - 50 - ns
/RAS Pulse Wi d th tRAS 60 10K 70 10K ns
/RAS Pulse Widt h ( Fast Page Mode) tRASP 60 100K 70 100K ns
/RAS Hold Time tRSH 15 - 20 - ns
/RAS Hold Time referenced to /OE tROH 15 - 20 - ns
/CAS Precharge Time (Fast Page Mode) tCP 10 - 10 - ns
/CAS Pulse Wi d th tCAS 15 10K 20 10K ns
/CAS Hold Time tCSH 60 - 70 - ns
/CAS t o /RAS Prechar ge Time tCRP 5-5-ns
/RAS Hold Time from /CAS Precharge tRHCP 35 - 40 - ns
/RAS to /CAS Delay Time tRCD 20 45 20 50 ns 5
/RAS to Column Address Delay Time tRAD 15 30 15 35 ns 6
Row Address Set-up Time tASR 0-0-ns
Row Address Hol d Ti me tRAH 10 - 10 - ns
Column Address Set-up Time tASC 0-0-ns
Col u mn Add ress Hol d Ti me tCAH 15 - 15 - ns
Column Address Hold Time from /RAS tAR 50 - 55 - ns
Column Address to /RAS Lead Time tRAL 30 - 35 - ns
Semiconductor MSC23237D
AC Characteristics (2/2) (VCC = 5V ± 10% , Ta = 0°C to +70°C ) Note: 1, 2, 3, 11, 12
MSC23237D
-60BS18/DS18 MSC23237D
-70BS18/DS18
Parameter Symbol
Min. Max. Min. Max.
Unit Note
Read Com mand Set-up Tim e tRCS 0-0-ns
Read Com mand Hold Time tRCH 0-0-ns8
Read Com mand Hold Time referenced t o / RAS tRRH 0-0-ns8
W r ite Command Set-up Time tWCS 0-0-ns9
W r ite Command Hold Time t WCH 10 - 10 - ns
W r ite Command Hold Time from /RAS tWCR 45 - 50 - ns
W r ite Command Pulse Wi dt h tWP 10 - 10 - ns
/O E Comm and Hol d Time tOEH 15 - 20 - ns
W r ite Command to / RAS Lead Ti me t RWL 15 - 20 - ns
W r ite Command to / CAS Lead time tCWL 15 - 20 - ns
Data-i n Set-up Time tDS 0-0-ns10
Dat a-i n Ho ld Time t DH 15 - 15 - ns 10
Data-in Hold Time from /RAS tDHR 50 - 55 - ns
/OE to Data-in Delay Tim e tOED 15 - 20 - ns
/CAS to /W E Delay Tim e tCWD 35 - 45 - ns 9
Column Address to /W E Delay Time tAWD 50 - 60 - ns 9
/RAS to /W E Delay Tim e tRWD 80 - 95 - ns 9
/CAS Pr echarge /WE Del ay Time tCPWD 55 - 65 - ns 9
/CAS Active Delay Time from /RAS Precharge tRPC 10 - 10 - ns
/RAS to /CAS Set-up Time
(/ CAS b efore /RAS) tCSR 5-5-ns
/RAS to /CAS Hold Tim e
(/ CAS b efore /RAS) tCHR 10 - 10 - ns
/WE to /RAS Precharge Ti me
(/ CAS b efore /RAS) tWRP 10 - 10 - ns
/WE Hold Time from /RAS
(/ CAS b efore /RAS) tWRH 10 - 10 - ns
/RAS to /W E Set-up Time
(Test Mode) tWTS 10 - 10 - ns
/RAS to /W E Hold Tim e
(Test Mode) tWTH 10 - 10 - ns
Semiconductor MSC23237D
Notes: 1. A start- up delay of 200µs is required after power-up, followed by a mi nimum of eight ini tializ ation cycles
(/RA S only refr esh or / CA S befor e /RAS refr esh) before pr oper devi c e oper ation is achieved.
2. The AC c har ac teri stics assumes tT = 5ns.
3. VIH(Min. ) and VIL(Max .) are ref erence l ev els for measuring input timi ng signals. Transiti on ti me (tT) are
m easured bet ween VIH and VIL.
4. This parameter i s measured wi th a load c ircuit equivalent to 2TT L loads and 100pF.
5. Operation within the tRCD(M ax. ) li mit ensures that t RAC(Max . ) can be met.
tRCD(Max.) is s pecified as a reference point only . If tRCD is greater than the s pecified tRCD(Max.) limit, then
the acc ess ti me is controlled by tCAC.
6. Operation within the tRAD(Max.) li mit ensures that tRAC(Max . ) can be met.
tRAD(Max.) is s pecified as a reference point only. If tRAD is greater than the specified tRAD(Max.) limit, the n
the acc ess ti me is controlled by tAA.
7. tOFF(Max.) and tOEZ(Max.) define the time at which the output achieves the open circuit condition and are
not refer enc ed to output vol tage levels.
8. tRCH or tRRH must be satisfied for a read cycle.
9. tWCS, tCWD, tRWD and t CPWD are not restri cti ve operati ng param et ers. T hey are incl uded i n the dat a sheet
as electrical characteristics only. If tWCS ≥ tWCS(Min.), the cycle is an early write cycle and the data out will
remain open circuit (high impedance) throughout the entire cycle. If tCWD ≥ tCWD(Min.), tRWD ≥ tRWD(Min.),
tAWD ≥ tAWD(Min.) and tCPWD ≥ tCPWD(Min.), the cycle is a read modify w rite cycle and data out will co ntain
data read fr om the selec ted cel l ; i f nei t her or t he abov e sets of condi t ions i s sati sf i ed, t he condi ti ons of
the dat a out (at ac c ess ti me) is indet er minate.
10. These parameters are referenced to /CAS leading edge in an early write cycle, and to /WE leading edge
in an / OE control wri te cycle or a read modi fy write cycle.
11. The test mode is initiated by performing a /WE and /CAS before /RAS refresh cycle. This mode is
latched and remains in effect until the exit cycle is generated. The test mode specified in this data sheet
is a 2-bit parall el test function. CA0 is not used. In a read cycle, if al l internal bits are equal , t he DQ pin
will indicate a high lev el. If any internal bits are not equal, the DQ pin will indicate a low level.
The test m ode i s cleared and t he mem ory dev i ce r eturned t o i ts norm al operating stat e by a / RAS onl y
refresh or /CAS bef ore /RAS ref resh cycle.
12. In a test mode read cycle, the value of access time parameters is delayed for 5ns for the specified value.
These parameters should be specified in test mode cycle by adding the abov e value to the specified
value in this data sheet.