512 DRAM 2,400+

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Part RoHS Manufacturer Memory IC Type Temperature Grade No. of Terminals Package Code Refresh Cycles Package Shape Package Body Material Access Mode Surface Mount No. of Functions Technology Screening Level Nominal Negative Supply Voltage Terminal Form Parallel or Serial Operating Mode Maximum Supply Current No. of Words Sequential Burst Length Self Refresh Input/Output Type Nominal Supply Voltage / Vsup (V) Mixed Memory Type Power Supplies (V) Memory Width Package Style (Meter) Package Equivalence Code Alternate Memory Width Sub-Category Terminal Pitch Maximum Operating Temperature Reverse Pinout Output Characteristics Organization No. of Words Code Minimum Standby Voltage Minimum Operating Temperature Terminal Finish Terminal Position No. of Ports JESD-30 Code Moisture Sensitivity Level (MSL) Maximum Supply Voltage (Vsup) Maximum Seated Height Maximum Clock Frequency (fCLK) Width Qualification Memory Density Minimum Supply Voltage (Vsup) Additional Features JESD-609 Code Maximum Time At Peak Reflow Temperature (s) Peak Reflow Temperature (C) Maximum Standby Current Interleaved Burst Length Length Maximum Access Time

TMS44C257-15NL

Texas Instruments

STATIC COLUMN DRAM

COMMERCIAL

20

DIP

512

RECTANGULAR

PLASTIC/EPOXY

STATIC COLUMN

NO

1

CMOS

THROUGH-HOLE

ASYNCHRONOUS

262144 words

5

4

IN-LINE

2.54 mm

70 Cel

3-STATE

256KX4

256K

0 Cel

DUAL

1

R-PDIP-T20

5.5 V

5.08 mm

7.62 mm

Not Qualified

1048576 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH

24.325 mm

150 ns

TMS44C260-80DJ

Texas Instruments

FAST PAGE DRAM

COMMERCIAL

24

SOJ

512

RECTANGULAR

PLASTIC/EPOXY

FAST PAGE

YES

1

CMOS

J BEND

ASYNCHRONOUS

75 mA

262144 words

5

5

4

SMALL OUTLINE

SOJ24/26,.34

DRAMs

1.27 mm

70 Cel

3-STATE

256KX4

256K

0 Cel

DUAL

1

R-PDSO-J24

5.5 V

3.76 mm

7.57 mm

Not Qualified

1048576 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH

NOT SPECIFIED

NOT SPECIFIED

.002 Amp

17.145 mm

80 ns

SMJ55166-70GB

Texas Instruments

VIDEO DRAM

MILITARY

68

PGA

512

SQUARE

CERAMIC, METAL-SEALED COFIRED

FAST PAGE WITH EDO

NO

1

CMOS

PIN/PEG

ASYNCHRONOUS

262144 words

5

16

GRID ARRAY

125 Cel

3-STATE

256KX16

256K

-55 Cel

PERPENDICULAR

2

S-CPGA-P68

5.5 V

Not Qualified

4194304 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH; 256 X 16 SAM PORT

70 ns

SMJ44C250-1HJM

Texas Instruments

VIDEO DRAM

MILITARY

28

SOJ

512

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

FAST PAGE

YES

1

CMOS

38535Q/M;38534H;883B

J BEND

ASYNCHRONOUS

110 mA

262144 words

5

5

4

SMALL OUTLINE

SOJ28,.44

Other Memory ICs

1.27 mm

125 Cel

3-STATE

256KX4

256K

-55 Cel

DUAL

2

R-CDSO-J28

5.25 V

4.521 mm

10.541 mm

Not Qualified

1048576 bit

4.75 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH; 512 X 4 SAM PORT

NOT SPECIFIED

NOT SPECIFIED

.015 Amp

18.542 mm

100 ns

TMS45169-70DZ

Texas Instruments

EDO DRAM

COMMERCIAL

40

SOJ

512

RECTANGULAR

PLASTIC/EPOXY

YES

CMOS

J BEND

160 mA

262144 words

YES

COMMON

5

5

16

SMALL OUTLINE

SOJ40,.44

DRAMs

1.27 mm

70 Cel

3-STATE

256KX16

256K

0 Cel

DUAL

R-PDSO-J40

Not Qualified

4194304 bit

NOT SPECIFIED

NOT SPECIFIED

.001 Amp

70 ns

TMX4C1026-15N

Texas Instruments

NIBBLE MODE DRAM

18

DIP

512

RECTANGULAR

PLASTIC/EPOXY

NIBBLE

NO

1

CMOS

THROUGH-HOLE

ASYNCHRONOUS

1048576 words

5

1

IN-LINE

2.54 mm

3-STATE

1MX1

1M

DUAL

1

R-PDIP-T18

5.5 V

5.08 mm

7.62 mm

Not Qualified

1048576 bit

4.5 V

22.48 mm

150 ns

SM44C256-12JDM

Texas Instruments

FAST PAGE DRAM

MILITARY

20

DIP

512

RECTANGULAR

CERAMIC

NO

CMOS

THROUGH-HOLE

262144 words

COMMON

5

5

4

IN-LINE

DIP20,.3

DRAMs

2.54 mm

125 Cel

3-STATE

256KX4

256K

-55 Cel

DUAL

R-XDIP-T20

Not Qualified

1048576 bit

NOT SPECIFIED

NOT SPECIFIED

120 ns

TMX4C1029-10N

Texas Instruments

NIBBLE MODE DRAM

18

DIP

512

RECTANGULAR

PLASTIC/EPOXY

NIBBLE

NO

1

CMOS

THROUGH-HOLE

ASYNCHRONOUS

1048576 words

5

1

IN-LINE

2.54 mm

3-STATE

1MX1

1M

DUAL

1

R-PDIP-T18

5.5 V

5.08 mm

7.62 mm

Not Qualified

1048576 bit

4.5 V

22.48 mm

100 ns

5962-9061702MYA

Texas Instruments

FAST PAGE DRAM

MILITARY

20

SON

512

RECTANGULAR

UNSPECIFIED

FAST PAGE

YES

1

CMOS

MIL-STD-883

NO LEAD

ASYNCHRONOUS

60 mA

262144 words

COMMON

5

5

4

SMALL OUTLINE

SOLCC20/26,.35

DRAMs

1.27 mm

125 Cel

3-STATE

256KX4

256K

-55 Cel

DUAL

1

R-XDSO-N20

5.5 V

2.54 mm

8.89 mm

Not Qualified

1048576 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH

NOT SPECIFIED

NOT SPECIFIED

.004 Amp

17.145 mm

120 ns

TMS45160P-10DZ

Texas Instruments

FAST PAGE DRAM

COMMERCIAL

40

SOJ

512

RECTANGULAR

PLASTIC/EPOXY

FAST PAGE

YES

1

CMOS

J BEND

ASYNCHRONOUS

262144 words

YES

5

16

SMALL OUTLINE

1.27 mm

70 Cel

256KX16

256K

0 Cel

DUAL

1

R-PDSO-J40

5.5 V

3.76 mm

10.16 mm

Not Qualified

4194304 bit

4.5 V

RAS ONLY; CAS BEFORE RAS; HIDDEN; SELF REFRESH

26.035 mm

100 ns

TM256GU9C-80

Texas Instruments

FAST PAGE DRAM MODULE

COMMERCIAL

30

SIMM

512

RECTANGULAR

UNSPECIFIED

FAST PAGE

NO

1

CMOS

NO LEAD

ASYNCHRONOUS

225 mA

262144 words

COMMON

5

5

9

MICROELECTRONIC ASSEMBLY

SIM30

DRAMs

2.54 mm

70 Cel

3-STATE

256KX9

256K

0 Cel

SINGLE

1

R-XSMA-N30

5.5 V

16.637 mm

Not Qualified

2359296 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH

.006 Amp

80 ns

TMS55161-80DGH

Texas Instruments

VIDEO DRAM

COMMERCIAL

64

SSOP

512

RECTANGULAR

PLASTIC/EPOXY

FAST PAGE WITH EDO

YES

1

CMOS

GULL WING

ASYNCHRONOUS

185 mA

262144 words

5

5

16

SMALL OUTLINE, SHRINK PITCH

SOP64,.54,32

Other Memory ICs

.8 mm

70 Cel

3-STATE

256KX16

256K

0 Cel

DUAL

2

R-PDSO-G64

5.5 V

2.38 mm

12.04 mm

Not Qualified

4194304 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH; 256 X 16 SAM PORT

NOT SPECIFIED

NOT SPECIFIED

.005 Amp

26.295 mm

80 ns

TM256KBK36B-70

Texas Instruments

FAST PAGE DRAM MODULE

COMMERCIAL

72

SIMM

512

RECTANGULAR

UNSPECIFIED

FAST PAGE

NO

1

CMOS

NO LEAD

ASYNCHRONOUS

720 mA

262144 words

COMMON

5

5

36

MICROELECTRONIC ASSEMBLY

SSIM72

18

DRAMs

1.27 mm

70 Cel

3-STATE

256KX36

256K

0 Cel

SINGLE

1

R-XSMA-N72

5.5 V

25.4 mm

Not Qualified

9437184 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH

.018 Amp

70 ns

SMJ44C256-12FQL

Texas Instruments

FAST PAGE DRAM

COMMERCIAL

20

SON

512

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

FAST PAGE

YES

1

CMOS

NO LEAD

ASYNCHRONOUS

262144 words

5

4

SMALL OUTLINE

1.27 mm

70 Cel

3-STATE

256KX4

256K

0 Cel

DUAL

1

R-CDSO-N20

5.5 V

2.34 mm

8.89 mm

Not Qualified

1048576 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH

17.145 mm

120 ns

SMJ4C1024-10SVM

Texas Instruments

FAST PAGE DRAM

MILITARY

20

DIP

512

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

FAST PAGE

NO

1

CMOS

38535Q/M;38534H;883B

THROUGH-HOLE

SYNCHRONOUS

70 mA

1048576 words

SEPARATE

5

5

1

IN-LINE

ZIP20,.1

DRAMs

1.27 mm

125 Cel

3-STATE

1MX1

1M

-55 Cel

DUAL

1

R-CDIP-T20

5.5 V

10.92 mm

2.92 mm

Not Qualified

1048576 bit

4.5 V

CAS BEFORE RAS REFRESH

NOT SPECIFIED

NOT SPECIFIED

.003 Amp

26.67 mm

100 ns

TM024GAD8-10

Texas Instruments

FAST PAGE DRAM MODULE

COMMERCIAL

30

512

RECTANGULAR

UNSPECIFIED

FAST PAGE

NO

1

CMOS

NO LEAD

ASYNCHRONOUS

1048576 words

5

8

MICROELECTRONIC ASSEMBLY

70 Cel

3-STATE

1MX8

1M

0 Cel

SINGLE

1

R-XSMA-N30

5.5 V

Not Qualified

8388608 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH

100 ns

SM4C1024-12HKM

Texas Instruments

FAST PAGE DRAM

MILITARY

512

CERAMIC

CMOS

1048576 words

SEPARATE

5

5

1

DRAMs

125 Cel

3-STATE

1MX1

1M

-55 Cel

Not Qualified

1048576 bit

120 ns

TMS44C256-12N

Texas Instruments

FAST PAGE DRAM

COMMERCIAL

20

DIP

512

RECTANGULAR

PLASTIC/EPOXY

FAST PAGE

NO

1

CMOS

THROUGH-HOLE

ASYNCHRONOUS

55 mA

262144 words

COMMON

5

5

4

IN-LINE

DIP20,.3

DRAMs

2.54 mm

70 Cel

3-STATE

256KX4

256K

0 Cel

DUAL

1

R-PDIP-T20

5.5 V

5.08 mm

7.62 mm

Not Qualified

1048576 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH

NOT SPECIFIED

NOT SPECIFIED

.002 Amp

24.325 mm

120 ns

TM024HAC4-12L

Texas Instruments

FAST PAGE DRAM MODULE

COMMERCIAL

24

512

RECTANGULAR

UNSPECIFIED

FAST PAGE

NO

1

CMOS

THROUGH-HOLE

ASYNCHRONOUS

240 mA

1048576 words

SEPARATE

5

5

4

MICROELECTRONIC ASSEMBLY

SIP24,.2

DRAMs

2.54 mm

70 Cel

3-STATE

1MX4

1M

0 Cel

SINGLE

1

R-XSMA-T24

5.5 V

Not Qualified

4194304 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH

NOT SPECIFIED

NOT SPECIFIED

.012 Amp

120 ns

TMS44C250-10SDL

Texas Instruments

VIDEO DRAM

COMMERCIAL

28

ZIP

512

RECTANGULAR

PLASTIC/EPOXY

FAST PAGE

NO

1

CMOS

THROUGH-HOLE

ASYNCHRONOUS

262144 words

5

4

IN-LINE

1.27 mm

70 Cel

3-STATE

256KX4

256K

0 Cel

ZIG-ZAG

2

R-PZIP-T28

5.5 V

10.16 mm

2.8 mm

Not Qualified

1048576 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH; 512 X 4 SAM PORT

100 ns

TMS45160S-70DZ

Texas Instruments

FAST PAGE DRAM

COMMERCIAL

40

SOJ

512

RECTANGULAR

PLASTIC/EPOXY

FAST PAGE

YES

1

CMOS

J BEND

ASYNCHRONOUS

160 mA

262144 words

YES

COMMON

5

5

16

SMALL OUTLINE

SOJ40,.44

DRAMs

1.27 mm

70 Cel

3-STATE

256KX16

256K

0 Cel

DUAL

1

R-PDSO-J40

5.5 V

3.76 mm

10.16 mm

Not Qualified

4194304 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN/SELF REFRESH; BYTE ACCESS

NOT SPECIFIED

NOT SPECIFIED

.0002 Amp

26.035 mm

70 ns

TMX4C1026-15DJ

Texas Instruments

NIBBLE MODE DRAM

20

SOJ

512

RECTANGULAR

PLASTIC/EPOXY

NIBBLE

YES

1

CMOS

J BEND

ASYNCHRONOUS

1048576 words

5

1

SMALL OUTLINE

1.27 mm

3-STATE

1MX1

1M

DUAL

1

R-PDSO-J20

5.5 V

3.76 mm

7.57 mm

Not Qualified

1048576 bit

4.5 V

17.145 mm

150 ns

SMJ44C251B-12JDM

Texas Instruments

VIDEO DRAM

MILITARY

28

DIP

512

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

FAST PAGE

NO

1

CMOS

38535Q/M;38534H;883B

THROUGH-HOLE

ASYNCHRONOUS

100 mA

262144 words

5

5

4

IN-LINE

DIP28,.4

Other Memory ICs

2.54 mm

125 Cel

3-STATE

256KX4

256K

-55 Cel

DUAL

2

R-CDIP-T28

5.5 V

4.83 mm

15.24 mm

Not Qualified

1048576 bit

4.5 V

CAS BEFORE RAS/HIDDEN REFRESH

NOT SPECIFIED

NOT SPECIFIED

.015 Amp

36.835 mm

120 ns

TM512LBK36B-80

Texas Instruments

FAST PAGE DRAM MODULE

COMMERCIAL

72

SIMM

512

RECTANGULAR

UNSPECIFIED

FAST PAGE

NO

1

CMOS

NO LEAD

ASYNCHRONOUS

675 mA

524288 words

COMMON

5

5

36

MICROELECTRONIC ASSEMBLY

SSIM72

18

DRAMs

1.27 mm

70 Cel

3-STATE

512KX36

512K

0 Cel

SINGLE

1

R-XSMA-N72

5.5 V

25.4 mm

Not Qualified

18874368 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH

.018 Amp

80 ns

SMJ44C251B-10HML

Texas Instruments

VIDEO DRAM

COMMERCIAL

28

SON

512

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

FAST PAGE WITH EDO

YES

1

CMOS

NO LEAD

ASYNCHRONOUS

262144 words

5

4

SMALL OUTLINE

1.27 mm

70 Cel

3-STATE

256KX4

256K

0 Cel

DUAL

2

R-CDSO-N28

5.5 V

2.54 mm

10.16 mm

Not Qualified

1048576 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH; 512 X 4 SAM PORT

18.288 mm

100 ns

5962-9061701MYA

Texas Instruments

FAST PAGE DRAM

MILITARY

20

SON

512

RECTANGULAR

UNSPECIFIED

FAST PAGE

YES

1

CMOS

MIL-STD-883

NO LEAD

ASYNCHRONOUS

55 mA

262144 words

COMMON

5

5

4

SMALL OUTLINE

SOLCC20/26,.35

DRAMs

1.27 mm

125 Cel

3-STATE

256KX4

256K

-55 Cel

DUAL

1

R-XDSO-N20

5.5 V

2.54 mm

8.89 mm

Not Qualified

1048576 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH

NOT SPECIFIED

NOT SPECIFIED

.004 Amp

17.145 mm

150 ns

TM024EAD9-70

Texas Instruments

FAST PAGE DRAM MODULE

COMMERCIAL

30

512

RECTANGULAR

UNSPECIFIED

FAST PAGE

NO

1

CMOS

NO LEAD

ASYNCHRONOUS

1048576 words

5

9

MICROELECTRONIC ASSEMBLY

70 Cel

3-STATE

1MX9

1M

0 Cel

SINGLE

1

R-XSMA-N30

5.5 V

Not Qualified

9437184 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH

70 ns

TM024HAC4-10L

Texas Instruments

FAST PAGE DRAM MODULE

COMMERCIAL

24

512

RECTANGULAR

UNSPECIFIED

FAST PAGE

NO

1

CMOS

THROUGH-HOLE

ASYNCHRONOUS

280 mA

1048576 words

SEPARATE

5

5

4

MICROELECTRONIC ASSEMBLY

SIP24,.2

DRAMs

2.54 mm

70 Cel

3-STATE

1MX4

1M

0 Cel

SINGLE

1

R-XSMA-T24

5.5 V

Not Qualified

4194304 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH

NOT SPECIFIED

NOT SPECIFIED

.012 Amp

100 ns

5962-9061704MYA

Texas Instruments

FAST PAGE DRAM

MILITARY

20

SON

512

RECTANGULAR

UNSPECIFIED

FAST PAGE

YES

1

CMOS

MIL-STD-883

NO LEAD

ASYNCHRONOUS

80 mA

262144 words

COMMON

5

5

4

SMALL OUTLINE

SOLCC20/26,.35

DRAMs

1.27 mm

125 Cel

3-STATE

256KX4

256K

-55 Cel

DUAL

1

R-XDSO-N20

5.5 V

2.54 mm

8.89 mm

Not Qualified

1048576 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH

NOT SPECIFIED

NOT SPECIFIED

.004 Amp

17.145 mm

80 ns

TMS44C256-15FML

Texas Instruments

FAST PAGE DRAM

COMMERCIAL

QCCJ

512

PLASTIC/EPOXY

YES

CMOS

J BEND

55 mA

262144 words

COMMON

5

5

4

CHIP CARRIER

LDCC(UNSPEC)

DRAMs

70 Cel

3-STATE

256KX4

256K

0 Cel

QUAD

Not Qualified

1048576 bit

NOT SPECIFIED

NOT SPECIFIED

.003 Amp

150 ns

SMJ55161-80HKCM

Texas Instruments

VIDEO DRAM

MILITARY

64

GDFP

512

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

FAST PAGE WITH EDO

YES

1

MOS

38535Q/M;38534H;883B

FLAT

ASYNCHRONOUS

200 mA

262144 words

5

5

16

FLATPACK

TPAK64,1.6SQ,20

Other Memory ICs

.5 mm

125 Cel

3-STATE

256KX16

256K

-55 Cel

DUAL

2

R-CDFP-F64

5.5 V

3.81 mm

10.985 mm

Not Qualified

4194304 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH; 256 X 16 SAM PORT

NOT SPECIFIED

NOT SPECIFIED

.012 Amp

18.985 mm

80 ns

SMJ4C1024-80JDM

Texas Instruments

FAST PAGE DRAM

MILITARY

18

DIP

512

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

FAST PAGE

NO

1

CMOS

38535Q/M;38534H;883B

THROUGH-HOLE

SYNCHRONOUS

75 mA

1048576 words

SEPARATE

5

5

1

IN-LINE

DIP18,.3

DRAMs

2.54 mm

125 Cel

3-STATE

1MX1

1M

-55 Cel

DUAL

1

R-CDIP-T18

5.5 V

4.45 mm

7.62 mm

Not Qualified

1048576 bit

4.5 V

CAS BEFORE RAS REFRESH

NOT SPECIFIED

NOT SPECIFIED

.003 Amp

22.606 mm

80 ns

TMS44C256-10N

Texas Instruments

FAST PAGE DRAM

COMMERCIAL

20

DIP

512

RECTANGULAR

PLASTIC/EPOXY

FAST PAGE

NO

1

CMOS

THROUGH-HOLE

ASYNCHRONOUS

65 mA

262144 words

COMMON

5

5

4

IN-LINE

DIP20,.3

DRAMs

2.54 mm

70 Cel

3-STATE

256KX4

256K

0 Cel

DUAL

1

R-PDIP-T20

5.5 V

5.08 mm

7.62 mm

Not Qualified

1048576 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH

NOT SPECIFIED

NOT SPECIFIED

.002 Amp

24.325 mm

100 ns

5962-9061703MYA

Texas Instruments

FAST PAGE DRAM

MILITARY

20

SON

512

RECTANGULAR

UNSPECIFIED

FAST PAGE

YES

1

CMOS

MIL-STD-883

NO LEAD

ASYNCHRONOUS

70 mA

262144 words

COMMON

5

5

4

SMALL OUTLINE

SOLCC20/26,.35

DRAMs

1.27 mm

125 Cel

3-STATE

256KX4

256K

-55 Cel

DUAL

1

R-XDSO-N20

5.5 V

2.54 mm

8.89 mm

Not Qualified

1048576 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH

NOT SPECIFIED

NOT SPECIFIED

.004 Amp

17.145 mm

100 ns

TM512CBK32-80

Texas Instruments

FAST PAGE DRAM MODULE

COMMERCIAL

72

SIMM

512

RECTANGULAR

UNSPECIFIED

FAST PAGE

NO

1

CMOS

NO LEAD

ASYNCHRONOUS

616 mA

524288 words

NO

COMMON

5

5

32

MICROELECTRONIC ASSEMBLY

SSIM72

16

DRAMs

1.27 mm

70 Cel

3-STATE

512KX32

512K

0 Cel

SINGLE

1

R-XSMA-N72

5.5 V

25.5778 mm

Not Qualified

16777216 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH

.016 Amp

80 ns

SMJ44C256-12HJL

Texas Instruments

FAST PAGE DRAM

COMMERCIAL

20

SOJ

512

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

FAST PAGE

YES

1

CMOS

J BEND

ASYNCHRONOUS

262144 words

5

4

SMALL OUTLINE

1.27 mm

70 Cel

3-STATE

256KX4

256K

0 Cel

DUAL

1

R-CDSO-J20

5.5 V

3.48 mm

8.382 mm

Not Qualified

1048576 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH

17.145 mm

120 ns

TMX44C256-12DJ

Texas Instruments

FAST PAGE DRAM

20

SOJ

512

RECTANGULAR

PLASTIC/EPOXY

FAST PAGE

YES

1

CMOS

J BEND

ASYNCHRONOUS

262144 words

5

4

SMALL OUTLINE

1.27 mm

3-STATE

256KX4

256K

DUAL

1

R-PDSO-J20

5.5 V

3.76 mm

7.57 mm

Not Qualified

1048576 bit

4.5 V

17.145 mm

120 ns

TM024EAD9-6L

Texas Instruments

FAST PAGE DRAM MODULE

COMMERCIAL

30

SIMM

512

RECTANGULAR

PLASTIC/EPOXY

NO

CMOS

NO LEAD

855 mA

1048576 words

COMMON

5

5

9

MICROELECTRONIC ASSEMBLY

SIM30

DRAMs

2.54 mm

70 Cel

3-STATE

1MX9

1M

0 Cel

SINGLE

R-PSMA-N30

20.4978 mm

Not Qualified

9437184 bit

.018 Amp

60 ns

SMJ44C251A-10HJM

Texas Instruments

VIDEO DRAM

MILITARY

28

SOJ

512

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

FAST PAGE

YES

1

CMOS

38535Q/M;38534H;883B

J BEND

ASYNCHRONOUS

110 mA

262144 words

5

5

4

SMALL OUTLINE

SOJ28,.44

Other Memory ICs

1.27 mm

125 Cel

3-STATE

256KX4

256K

-55 Cel

DUAL

2

R-CDSO-J28

5.5 V

4.521 mm

10.541 mm

Not Qualified

1048576 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH; 512 X 4 SAM PORT

NOT SPECIFIED

NOT SPECIFIED

.015 Amp

18.542 mm

100 ns

TM024EAD9-12L

Texas Instruments

FAST PAGE DRAM MODULE

COMMERCIAL

30

SIMM

512

RECTANGULAR

UNSPECIFIED

FAST PAGE

NO

1

CMOS

NO LEAD

ASYNCHRONOUS

540 mA

1048576 words

COMMON

5

5

9

MICROELECTRONIC ASSEMBLY

SIM30

DRAMs

2.54 mm

70 Cel

3-STATE

1MX9

1M

0 Cel

SINGLE

1

R-XSMA-N30

5.5 V

Not Qualified

9437184 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH

.027 Amp

120 ns

TMS45169-70DGE

Texas Instruments

EDO DRAM

COMMERCIAL

40

TSOP

512

RECTANGULAR

PLASTIC/EPOXY

YES

CMOS

GULL WING

160 mA

262144 words

NO

COMMON

5

5

16

SMALL OUTLINE, THIN PROFILE

TSOP40/44,.46,32

DRAMs

.8 mm

70 Cel

3-STATE

256KX16

256K

0 Cel

DUAL

R-PDSO-G40

Not Qualified

4194304 bit

NOT SPECIFIED

NOT SPECIFIED

.001 Amp

70 ns

SMJ4C1024-15SV

Texas Instruments

FAST PAGE DRAM

MILITARY

20

ZIP

512

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

FAST PAGE

NO

1

CMOS

THROUGH-HOLE

ASYNCHRONOUS

1048576 words

5

1

IN-LINE

2.54 mm

125 Cel

3-STATE

1MX1

1M

-55 Cel

ZIG-ZAG

1

R-CZIP-T20

5.5 V

10.92 mm

2.92 mm

Not Qualified

1048576 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH

26.67 mm

150 ns

SMJ44C256-80HLM

Texas Instruments

FAST PAGE DRAM

MILITARY

20

SON

512

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

FAST PAGE

YES

1

CMOS

MIL-PRF-38535

NO LEAD

SYNCHRONOUS

80 mA

262144 words

COMMON

5

5

4

SMALL OUTLINE

SOLCC20/26,.35

DRAMs

1.27 mm

125 Cel

3-STATE

256KX4

256K

-55 Cel

DUAL

1

R-CDSO-N20

5.5 V

2.03 mm

8.89 mm

Not Qualified

1048576 bit

4.5 V

CAS BEFORE RAS REFRESH

NOT SPECIFIED

NOT SPECIFIED

.003 Amp

17.145 mm

80 ns

TMS45165P-10DGE

Texas Instruments

FAST PAGE DRAM

COMMERCIAL

40

TSOP2

512

RECTANGULAR

PLASTIC/EPOXY

FAST PAGE

YES

1

CMOS

GULL WING

ASYNCHRONOUS

120 mA

262144 words

YES

COMMON

5

5

16

SMALL OUTLINE, THIN PROFILE

TSOP40/44,.46,32

DRAMs

.8 mm

70 Cel

3-STATE

256KX16

256K

0 Cel

DUAL

1

R-PDSO-G40

5.5 V

1.2 mm

10.16 mm

Not Qualified

4194304 bit

4.5 V

RAS ONLY/CAS BEFORE RAS/HIDDEN/SELF REFRESH

NOT SPECIFIED

NOT SPECIFIED

.0002 Amp

18.41 mm

100 ns

TMX4C1027-10N

Texas Instruments

STATIC COLUMN DRAM

18

DIP

512

RECTANGULAR

PLASTIC/EPOXY

STATIC COLUMN

NO

1

CMOS

THROUGH-HOLE

ASYNCHRONOUS

1048576 words

5

1

IN-LINE

2.54 mm

3-STATE

1MX1

1M

DUAL

1

R-PDIP-T18

5.5 V

5.08 mm

7.62 mm

Not Qualified

1048576 bit

4.5 V

22.48 mm

100 ns

TM024EAD9-6

Texas Instruments

FAST PAGE DRAM MODULE

COMMERCIAL

30

512

RECTANGULAR

UNSPECIFIED

FAST PAGE

NO

1

CMOS

NO LEAD

ASYNCHRONOUS

1048576 words

5

9

MICROELECTRONIC ASSEMBLY

70 Cel

3-STATE

1MX9

1M

0 Cel

SINGLE

1

R-XSMA-N30

5.25 V

Not Qualified

9437184 bit

4.75 V

RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH

60 ns

SMJ44C256-10JDM

Texas Instruments

FAST PAGE DRAM

MILITARY

20

DIP

512

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

FAST PAGE

NO

1

CMOS

MIL-PRF-38535

THROUGH-HOLE

SYNCHRONOUS

70 mA

262144 words

COMMON

5

5

4

IN-LINE

DIP20,.3

DRAMs

2.54 mm

125 Cel

3-STATE

256KX4

256K

-55 Cel

DUAL

1

R-CDIP-T20

5.5 V

4.45 mm

7.62 mm

Not Qualified

1048576 bit

4.5 V

CAS BEFORE RAS REFRESH

NOT SPECIFIED

NOT SPECIFIED

.003 Amp

100 ns

TMX4C1025-12DJ

Texas Instruments

NIBBLE MODE DRAM

20

SOJ

512

RECTANGULAR

PLASTIC/EPOXY

NIBBLE

YES

1

CMOS

J BEND

ASYNCHRONOUS

1048576 words

5

1

SMALL OUTLINE

1.27 mm

3-STATE

1MX1

1M

DUAL

1

R-PDSO-J20

5.5 V

3.76 mm

7.57 mm

Not Qualified

1048576 bit

4.5 V

17.145 mm

120 ns

DRAM

DRAM, or Dynamic Random Access Memory, is a type of volatile computer memory that stores data in a digital format. It is commonly used in personal computers, laptops, mobile devices, and other digital devices.

DRAM stores digital data as a charge on a capacitor. Each capacitor in DRAM represents one bit of data, and the state of the capacitor is refreshed periodically to maintain its charge. The refreshing process is necessary because the charge on the capacitor leaks over time, leading to data loss. The refreshing process is managed by a control circuitry that is integrated into the DRAM module.

DRAM is an important component of modern computer systems because it provides fast access to data for the processor. DRAM access times are measured in nanoseconds, which is much faster than access times for secondary storage devices like hard drives or solid-state drives. DRAM is also cheaper and more energy-efficient than other types of computer memory.

There are different types of DRAM, including SDRAM (Synchronous DRAM), DDR SDRAM (Double Data Rate Synchronous DRAM), and GDDR SDRAM (Graphics Double Data Rate Synchronous DRAM). These different types of DRAM have different characteristics, such as speed, capacity, and power consumption, and are used in different types of computer systems.

One of the disadvantages of DRAM is that it is volatile, which means that it loses data when the power is turned off. To prevent data loss, DRAM is typically used in conjunction with non-volatile storage devices like hard drives or solid-state drives, which can store data even when the power is turned off.