2,097,152-wo rd x 32-bit DYNAMIC RAM MODULE : FAST PAGE MODE TYPE
DESCRIPTION
The MSC23232D/DL-x xBS16/DS16 is a f ully decoded, 2,097,152- word x 32-bi t CMOS dynamic r andom access
memor y module com posed of sixt een 4Mb DRAMs in SO J packages mount ed with six teen decoupli ng capaci tors
on a 72-pin glass epox y singl e-i nl i ne package. T hi s modul e supports any appli cat i on where hi gh density and l arge
capacity of storage memory are required. The MSC23232DL (the low-power version) is specially designed for
lower-power applicat ions.
FEATURES
· 2,097,152-word x 32- bit organization
· 72-pin Single Inline Memory M odule
MSC23232D/DL-x xBS16 : Gold tab
MSC23232D/DL-x xDS16 : Sol der tab
Average Power Supply Current
(/CAS before /RAS refresh)
Average Power Supply Current
(Fast Page Mode)
Average Power Supply Current
(Battery Backup)
I
CC6
I
CC7
I
CC10
/RAS cycling,
/CAS before /RAS
/RAS = VIL,
/CAS cycling,
= Min.
t
PC
tRC = 125µs,
/CAS before /RAS
Notes: 1. ICC Max. is specified as ICC for output open conditi on.
2. Address can be changed once or less while / RA S = V
3. Address can be changed once or less while / CA S = V
4. V
- 0.2V ≤ VIH ≤ 6.5V, - 1.0V ≤ VIL ≤ 0.2V.
CC
5. L-version.
-760-680mA1, 2
-600-520mA1, 3
-4.8-4.8mA1, 4, 5
.
IL
.
IH
Page 7
SemiconductorMSC23232D/DL
AC Characteristics (1/2)
Paramete rSymbol
(VCC = 5V ± 10%, Ta = 0°C to +70°C ) Note: 1, 2, 3, 9, 10
MSC23232D/DL
-60BS16/DS16
MSC23232D/DL
-70BS16/DS16
UnitNote
Min.Max.Min.Max.
Random Read or Writ e Cycle Timet
Fast Page Mode Cycle Timet
Access Time from /RASt
Access Time from /CASt
Access Time from Column Addresst
Access Time from /CAS Precharget
Output Low Impedance Time from /CASt
/CAS to Data Output Buffer Turn-off Delay Timet
Transition Timet
Refresh Periodt
Refresh Period (L-version)t
/RAS Precharge Tim et
/RAS Pulse Widtht
/RAS Pulse Width ( Fast Page Mode)t
/RAS Hold Timet
/CAS Precharge Time (Fast Page Mode)t
/CAS Pulse Widtht
1510K2010Kns
/CAS Hold Timet
/CAS to /RAS Pr echarge Timet
/RAS Hold Time from /CAS Precharget
/RAS to /CAS Delay Timet
/RAS to Column Address Delay Timet
Row Address Set-up Timet
Row Address Hol d Timet
Column Address Set-up Timet
Column Address Hol d Timet
Column Address Hold Time from /RASt
Column Address to /RAS Lead Timet
Read Command Set-up Timet
Read Command Hold Timet
Read Command Hold Time referenced to /RASt
CSH
CRP
RHCP
RCD
RAD
ASR
RAH
ASC
CAH
AR
RAL
RCS
RCH
RRH
60-70-ns
5-5-ns
35-40-ns
20452050ns5
15301535ns6
0-0-ns
10-10-ns
0-0-ns
15-15-ns
50-55-ns
30-35-ns
0-0-ns
0-0-ns8
0-0-ns8
Page 8
SemiconductorMSC23232D/DL
AC Characteristics (2/2)
Paramete rSymbol
(VCC = 5V ± 10%, Ta = 0°C to +70°C ) Note: 1, 2, 3, 9, 10
MSC23232D/DL
-60BS16/DS16
MSC23232D/DL
-70BS16/DS16
UnitNote
Min.Max.Min.Max.
Writ e Command Set-up Timet
Writ e Command Hold Timet
Writ e Command Hold Time from /RASt
Writ e Command Pulse Wi dtht
Writ e Command to /RAS Lead Timet
Writ e Command to /CAS Lead Timet
Data-in Set-up Timet
Data-i n Ho ld Timet
Data-in Hold Time from /RASt
/CAS Active Delay Time from /RAS Precharget
/RAS to /CAS Set-up Time
Notes: 1. A start-up delay of 200µs is required after power-up, fol lowed by a minimum of eight initialization cycles
(/RAS only r efresh or /CAS before /RAS refresh) befor e pr oper devic e oper ation is achieved.
2. The AC characteristic s assumes t
3. V
(Min.) and VIL(Max.) are ref erence lev els f or m easuring input tim ing signals. Transiti on ti me (tT) are
IH
measured between V
and VIL.
IH
= 5ns.
T
4. This parameter is m easured wit h a load circuit equivalent t o 2TTL loads and 100pF.
5. Operation within the t
(Max.) is specified as a reference point only. If t
t
RCD
RCD
the access tim e is controll ed by t
6. Operation within the t
(Max.) is specified as a reference point only. If t
t
RAD
RAD
the access tim e is controll ed by t
7. t
(Max.) define the time at which the output achieves the open circuit condition and are not referenced
OFF
(Max.) limit ensures that t
.
CAC
(Max.) limit ensures that t
.
AA
(Max.) can be met.
RAC
is greater than the specified t
RCD
(Max.) can be met.
RAC
is greater than the specified t
RAD
(Max.) limit, then
RCD
(Max.) limit, then
RAD
to output voltage levels.
8. t
RCH
or t
must be satisfi ed for a read cycle.
RRH
9. The test mode is initiated by perf orming a /WE and /CAS before /RAS ref resh 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 parallel test functi on. CA0 is not used. In a read cycle, if all internal bits are equal, the DQ pin
will indicate a high level. If any internal bits are not equal, the DQ pin will indicate a low level.
The test mode is cl eared and t he mem ory devic e retur ned to i ts norm al operati ng state by a / RAS onl y
refresh or /CAS before /RAS refresh cycle.
10. In a test mode read cycle, the value of access time parameters is delayed for 5ns for the specified value.
These parameters should be specifi ed in test m ode cycle by adding the abov e v alue t o the specif ied
value in this data sheet.
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