TI TM124BBK32H

TM124BBK32H, TM124BBK32I 1048576 BY 32-BIT
TM248CBK32H, TM248CBK32I 2097152 BY 32-BIT
DYNAMIC RAM MODULES
SMMS679 – MARCH 1997
D
D
D
D
D
D
D
D
D
D
Organization
TM124BBK32H/ I . . . 1 048 576 × 32
TM248CBK32H/ I . . . 2 097 152 × 32
Single 5-V Power Supply (±10% Tolerance)
72-Pin Single In-Line Memory Module
(SIMM) for Use With Socket
TM124BBK32H/ I – Uses Two 16M-Bit
DRAMs in Plastic Small-Outline J-Lead
(SOJ) Packages
TM248CBK32H/ I – Uses Four 16M-Bit
DRAMs in Plastic SOJ Packages
Long Refresh Period
16 ms (1 024 Cycles)
All Inputs, Outputs, Clocks Fully
TTL-Compatible
3-State Output
Common CAS Control for Eight Common
Data-In and Data-Out Lines in Four Blocks
Enhanced Page-Mode Operation With
CAS-Before-RAS ( CBR), RAS-Only, and
Hidden Refresh
D
D
D
D
D
D
Presence Detect
Performance Ranges:
ACCESS ACCESS ACCESS READ
TIME
TIME
TIME
OR
tRAC
tAA
tCAC WRITE
CYCLE
(MAX)
(MAX)
(MAX)
(MIN)
’124BBK32H / I-50 50 ns
25 ns
13 ns
90 ns
’124BBK32H / I-60 60 ns
30 ns
15 ns
110 ns
’124BBK32H / I-70 70 ns
35 ns
18 ns
130 ns
’248CBK32H / I-50 50 ns
25 ns
13 ns
90 ns
’248CBK32H / I-60 60 ns
30 ns
15 ns
110 ns
’248CBK32H / I-70 70 ns
35 ns
18 ns
130 ns
Low Power Dissipation
Operating Free-Air Temperature Range
0°C to 70°C
Gold-Tabbed Versions Available:†
TM124BBK32H
TM248CBK32H
Tin-Lead (Solder) Tabbed Versions
Available:
TM124BBK32I
TM248CBK32I
description
TM124BBK32H/ I
The TM124BBK32H / I is a 32M-bit dynamic random-access memory (DRAM) module organized as four times
1 048 576 × 8 in a 72-pin SIMM. The SIMM is composed of two TMS418160ADZ, 1 048 576 × 16-bit DRAMs,
each in a 42-lead plastic SOJ package mounted on a substrate with decoupling capacitors. The
TMS418160ADZ is described in the TMS418160A data sheet (literature number SMKS891). The
TM124BBK32H/ I SIMM is available in the single-sided BK-leadless module for use with sockets.
TM248CBK32H/ I
The TM248CBK32H / I is a 64M-bit DRAM organized as four times 2 097 152 × 8 in a 72-pin SIMM. The SIMM
is composed of four TMS418160ADZ, 1 048 576 × 16-bit DRAMs, each in a 42-lead plastic SOJ package
mounted on a substrate with decoupling capacitors. The TMS418160ADZ is described in the TMS418160A data
sheet (literature number SMKS891). The TM248CBK32H / I SIMM is available in the double-sided BK-leadless
module for use with sockets.
operation
The TM124BBK32H / I operates as two TMS418160ADZ DRAMs, connected as shown in the functional block
diagram and Table 1. The TM248CBK32H / I operates as four TMS418160ADZ DRAMs connected as shown
in the functional block diagram and Table 1. The common I / O feature dictates the use of early-write cycles to
prevent contention on D and Q.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
† Part numbers in this data sheet are for the gold-tabbed version; the information applies to both gold-tabbed and solder-tabbed versions.
Copyright  1997, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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1
TM124BBK32H, TM124BBK32I 1048576 BY 32-BIT
TM248CBK32H, TM248CBK32I 2097152 BY 32-BIT
DYNAMIC RAM MODULES
SMMS679 – MARCH 1997
BK SINGLE-IN-LINE MEMORY MODULE
( TOP VIEW )
2
VSS
DQ0
DQ16
DQ1
DQ17
DQ2
DQ18
DQ3
DQ19
VCC
NC
A0
A1
A2
A3
A4
A5
A6
NC
DQ4
DQ20
DQ5
DQ21
DQ6
DQ22
DQ7
DQ23
A7
NC
VCC
A8
A9
RAS3
RAS2
NC
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
NC
NC
VSS
CAS0
CAS2
CAS3
CAS1
RAS0
RAS1
NC
W
NC
DQ8
DQ24
DQ9
DQ25
DQ10
DQ26
DQ11
DQ27
DQ12
DQ28
VCC
DQ29
DQ13
DQ30
DQ14
DQ31
DQ15
NC
PD1
PD2
PD3
PD4
NC
VSS
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
TM124BBK32H/I
( SIDE VIEW )
TM248CBK32H/I
( SIDE VIEW )
PIN NOMENCLATURE
A0 – A9
CAS0 – CAS3
DQ0 – DQ31
NC
PD1 – PD4
RAS0 – RAS3
VCC
VSS
W
Address Inputs
Column-Address Strobe
Data In/Data Out
No Connection
Presence Detects
Row-Address Strobe
5-V Supply
Ground
Write Enable
PRESENCE DETECT
SIGNAL
(PIN)
PD1
(67)
PD2
(68)
PD3
(69)
PD4
(70)
VSS
VSS
VSS
VSS
VSS
NC
VSS
NC
50 ns
VSS
NC
VSS
NC
VSS
VSS
60 ns
NC
NC
NC
VSS
NC
70 ns
NC
NC
VSS
NC
50 ns
TM124BBK32H/I
60 ns
70 ns
TM248CBK32H/I
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TM124BBK32H, TM124BBK32I 1048576 BY 32-BIT
TM248CBK32H, TM248CBK32I 2097152 BY 32-BIT
DYNAMIC RAM MODULES
SMMS679 – MARCH 1997
operation (continued)
Table 1. Connection Table
DATA BLOCK
RASx
SIDE 1
SIDE 2†
CASx
DQ0 – DQ7
RAS0
RAS1
CAS0
DQ8 – DQ15
RAS0
RAS1
CAS1
DQ16 – DQ23
RAS2
RAS3
CAS2
DQ24 – DQ31
RAS2
RAS3
CAS3
† Side 2 applies to the TM248CBK32H/I only.
single in-line memory module and components
PC substrate: 1,27 ± 0,1 mm (0.05 inch) nominal thickness; 0.005 inch / inch maximum warpage
Bypass capacitors: Multilayer ceramic
Contact area for TM124BBK32H and TM248CBK32H: Nickel plate and gold plate over copper
Contact area for TM124BBK32I and TM248CBK32I: Nickel plate and tin / lead over copper
functional block diagram (TM124BBK32H/I and TM248CBK32H/I, side 1)
10
A0 – A9
RAS0
RAS2
W
10
CAS0
CAS1
1M × 16
A0 –A9
DQ0 –
RAS
DQ7
W
LCAS
DQ8 –
UCAS
DQ15
10
D0 – D7
CAS2
CAS3
D8 – D15
1M × 16
A0 –A9
DQ0 –
RAS
DQ7
W
LCAS
DQ8 –
UCAS
DQ15
D16 – D23
D24 – D31
functional block diagram (TM248CBK32H/I, side 2)
10
A0 – A9
RAS1
RAS3
W
10
CAS1
CAS0
1M × 16
A0 –A9
DQ0 –
RAS
DQ7
W
LCAS
DQ8 –
UCAS
DQ15
10
D8 – D15
D0 – D7
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CAS3
CAS2
• HOUSTON, TEXAS 77251–1443
1M × 16
A0 –A9
DQ0 –
RAS
DQ7
W
LCAS
DQ8 –
UCAS
DQ15
D24 – D31
D16 – D23
3
TM124BBK32H, TM124BBK32I 1048576 BY 32-BIT
TM248CBK32H, TM248CBK32I 2097152 BY 32-BIT
DYNAMIC RAM MODULES
SMMS679 – MARCH 1997
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 1 V to 7 V
Voltage range on any pin (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 1 V to 7 V
Short-circuit output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
Power dissipation: TM124BBK32H, TM124BBK32I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 W
TM248CBK32H, TM248CBK32I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 W
Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to VSS.
recommended operating conditions
MIN
NOM
MAX
VCC
VIH
Supply voltage
4.5
5
5.5
V
High-level input voltage
2.4
6.5
V
VIL
TA
Low-level input voltage (see Note 2)
–1
0.8
V
0
70
°C
Operating free-air temperature
UNIT
NOTE 2: The algebraic convention, where the more negative (less positive) limit is designated as minimum, is used for logic-voltage levels only.
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS‡
VOH
High-level output
voltage
IOH = – 5 mA
VOL
Low-level output
voltage
IOL = 4.2 mA
II
Input current
(leakage)
IO
ICC1
ICC2
’124BBK32H / I - 50
MIN
’124BBK32H / I - 60
MAX
2.4
MIN
MAX
2.4
’124BBK32H / I - 70
MIN
MAX
2.4
UNIT
V
0.4
0.4
0.4
V
VCC = 5.5 V, VI = 0 V to 6.5 V,
All other pins = 0 V to VCC
± 10
± 10
± 10
µA
Output current
(leakage)
VCC = 5.5 V,
VO = 0 V to VCC,
CAS high
± 10
± 10
± 10
µA
Read- or
write-cycle current
VCC = 5.5 V, Minimum cycle
360
320
300
mA
VIH = 2.4 V (TTL),
After 1 memory cycle,
RAS and CAS high
4
4
4
mA
VIH = VCC – 0.2 V (CMOS),
After 1 memory cycle,
RAS and CAS high
2
2
2
mA
Standby current
ICC3
Average refresh
current
(RAS only or CBR)
VCC = 5.5 V, Minimum cycle,
RAS cycling,
CAS high (RAS only);
RAS low after CAS low (CBR)
360
320
300
mA
ICC4
Average page
current
VCC = 5.5 V, tPC = MIN,
RAS low,
CAS cycling
220
180
160
mA
‡ For test conditions shown as MIN / MAX, use the appropriate value specified under recommended operating conditions.
4
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TM124BBK32H, TM124BBK32I 1048576 BY 32-BIT
TM248CBK32H, TM248CBK32I 2097152 BY 32-BIT
DYNAMIC RAM MODULES
SMMS679 – MARCH 1997
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
TEST CONDITIONS†
PARAMETER
VOH
High-level
output voltage
IOH = – 5 mA
VOL
Low-level
output voltage
IOL = 4.2 mA
II
Input current
(leakage)
IO
ICC1
ICC2
’248CBK32H / I - 50
MIN
MAX
2.4
’248CBK32H / I - 60
MIN
’248CBK32H / I - 70
MAX
MIN
2.4
MAX
2.4
UNIT
V
0.4
0.4
0.4
V
VCC = 5.5 V,
VI = 0 V to 6.5 V,
All other pins = 0 V to VCC
± 10
± 10
± 10
µA
Output current
(leakage)
VCC = 5.5 V,
VO = 0 V to VCC, CAS high
± 20
± 20
± 20
µA
Read- or
write-cycle
current (see
Note 3)
VCC = 5.5 V,
368
328
308
mA
VIH = 2.4 V (TTL),
After 1 memory cycle,
RAS and CAS high
8
8
8
mA
VIH = VCC – 0.2 V (CMOS),
After 1 memory cycle,
RAS and CAS high
4
4
4
mA
Standby current
Minimum cycle
ICC3
Average refresh
current (RAS
only or CBR)
(see Note 3)
VCC = 5.5 V,
Minimum cycle,
RAS cycling,
CAS high (RAS only);
RAS low after CAS low (CBR)
720
640
600
mA
ICC4
Average page
current
(see Note 4)
VCC = 5.5 V,
RAS low,
440
360
320
mA
tPC = MIN,
CAS cycling
† For test conditions shown as MIN / MAX, use the appropriate value specified under recommended operating conditions.
NOTES: 3. Measured with a maximum of one address change while RAS = VIL
4. Measured with a maximum of one address change while CAS = VIH
capacitance over recommended ranges of supply voltage and operating free-air temperature,
f = 1 MHz (see Note 5)
’124BBK32H / I
PARAMETER
MIN
MAX
’248CBK32H / I
MIN
MAX
UNIT
Ci(A)
Input capacitance, A0 – A9
10
20
pF
Ci(R)
Input capacitance, RAS inputs
7
7
pF
Ci(C)
Input capacitance, CAS inputs
7
14
pF
Ci(W)
Input capacitance, W
14
28
pF
Co(DQ)
Output capacitance on DQ0 – DQ31
7
14
pF
NOTE 5: VCC = 5 V ± 0.5 V, and the bias on pins under test is 0 V.
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TM124BBK32H, TM124BBK32I 1048576 BY 32-BIT
TM248CBK32H, TM248CBK32I 2097152 BY 32-BIT
DYNAMIC RAM MODULES
SMMS679 – MARCH 1997
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature
’124BBK32H / I - 50
’248CBK32H / I - 50
PARAMETER
MIN
’124BBK32H / I - 60
’248CBK32H / I - 60
MAX
MIN
MAX
’124BBK32H / I - 70
’248CBK32H / I - 70
MIN
UNIT
MAX
tAA
tCAC
Access time from column address
25
30
35
ns
Access time from CAS low
13
15
18
ns
tRAC
tCPA
Access time from RAS low
50
60
70
ns
Access time from column precharge
30
35
40
ns
tCLZ
tOH
CAS to output in the low-impedance state
0
0
0
Output disable time from start of CAS high
3
3
3
tOFF Output disable time after CAS high (see Note 6)
NOTE 6: tOFF is specified when the output is no longer driven.
0
13
0
15
0
ns
ns
18
ns
timing requirements over recommended ranges of supply voltage and operating free-air
temperature
’124BBK32H / I - 50
’248CBK32H / I - 50
MIN
tRC
tRWC
MIN
MAX
’124BBK32H / I - 70
’248CBK32H / I - 70
MIN
UNIT
MAX
90
110
130
ns
131
155
181
ns
Cycle time, page-mode read or write
(see Notes 7 and 8)
35
40
45
ns
tRASP
tRAS
Pulse duration, page mode, RAS low
50
100 000
60
100 000
70
100 000
ns
Pulse duration, nonpage mode, RAS low
50
10 000
60
10 000
70
10 000
ns
tCAS
tCP
Pulse duration, CAS low
13
10 000
15
10 000
18
10 000
ns
Pulse duration, CAS high
8
10
10
ns
tRP
tWP
Pulse duration, RAS high (precharge)
30
40
50
ns
Pulse duration, W low
10
10
10
ns
tASC
tASR
Setup time, column address before CAS low
0
0
0
ns
Setup time, row address before RAS low
0
0
0
ns
tDS
tRCS
Setup time, data before CAS low
0
0
0
ns
Setup time, W high before CAS low
0
0
0
ns
tCWL
tRWL
Setup time, W low before CAS high
13
15
18
ns
Setup time, W low before RAS high
13
15
18
ns
tWCS
tCAH
Setup time, W low before CAS low
0
0
0
ns
Hold time, column address after CAS low
10
10
15
ns
tRHCP
tDH
Hold time, RAS high from CAS precharge
30
35
40
ns
Hold time, data after CAS low
10
10
15
ns
tRAH
tRCH
Hold time, row address after RAS low
8
10
10
ns
Hold time, W high after CAS high (see Note 9)
0
0
0
ns
tRRH
Hold time, W high after RAS high (see Note 9)
NOTES: 7. All cycles assume tT = 5 ns.
8. To assure tPC min, tASC should be ≥ tCP .
9. Either tRRH or tRCH must be satisfied for a read cycle.
0
0
0
ns
tPC
6
Cycle time, random read or write (see Note 7)
MAX
’124BBK32H / I - 60
’248CBK32H / I - 60
Cycle time, read-write
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TM124BBK32H, TM124BBK32I 1048576 BY 32-BIT
TM248CBK32H, TM248CBK32I 2097152 BY 32-BIT
DYNAMIC RAM MODULES
SMMS679 – MARCH 1997
timing requirements over recommended ranges of supply voltage and operating free-air
temperature
’124BBK32H / I - 50
’248CBK32H / I - 50
MIN
MAX
’124BBK32H / I - 60
’248CBK32H / I - 60
MIN
MAX
’124BBK32H / I - 70
’248CBK32H / I - 70
MIN
UNIT
MAX
tWCH
Hold time, W low after CAS low
10
10
15
ns
tCHR
Delay time, RAS low to CAS high (CBR refresh
only)
10
10
10
ns
tCRP
tCSH
Delay time, CAS high to RAS low
5
5
5
ns
Delay time, RAS low to CAS high
50
60
70
ns
tCSR
Delay time, CAS low to RAS low (CBR refresh only)
5
5
5
ns
tRAD
Delay time, RAS low to column address
(see Note 10)
13
tRAL
tCAL
Delay time, column address to RAS high
25
30
35
Delay time, column address to CAS high
25
30
35
tRCD
tRPC
Delay time, RAS low to CAS low (see Note 10)
18
tRSH
tREF
Delay time, CAS low to RAS high
Delay time, RAS high to CAS low (CBR only)
25
37
15
20
30
45
15
20
5
5
5
13
15
18
Refresh time interval
16
tT
Transition time
2
NOTE 10: The maximum value is specified only to ensure access time.
30
16
2
30
2
35
ns
ns
ns
52
ns
ns
ns
16
ms
30
ns
device symbolization (TM124BBK32H/I illustrated)
TM124BBK32H
-SS
YY
MM
T
-SS
=
=
=
=
YYMMT
Year Code
Month Code
Assembly Site Code
Speed Code
NOTE A: Location of symbolization may vary.
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TM124BBK32H, TM124BBK32I 1048576 BY 32-BIT
TM248CBK32H, TM248CBK32I 2097152 BY 32-BIT
DYNAMIC RAM MODULES
SMMS679 – MARCH 1997
MECHANICAL DATA
BK (R-PSIM-N72)
SINGLE-IN-LINE MEMORY MODULE
0.054 (1,37)
0.047 (1,19)
4.255 (108,08)
4.245 (107,82)
0.125 (3,18) TYP
1.005 (25,53)
0.995 (25,27)
0.050 (1,27)
0.128 (3,25)
0.120 (3,05)
0.010 (0,25) MAX
0.400 (10,16) TYP
0.040 (1,02) TYP
0.208 (5,28) MAX
0.360 (9,14) MAX
(For Double-Sided SIMM)
4040197 / B 02/96
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
8
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