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Part	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	Terminal Form	Operating Mode	Maximum Supply Current	No. of Words	Self Refresh	Input/Output Type	Nominal Supply Voltage / Vsup (V)	Power Supplies (V)	Memory Width	Package Style (Meter)	Package Equivalence Code	Sub-Category	Terminal Pitch	Maximum Operating Temperature	Output Characteristics	Organization	No. of Words Code	Minimum Operating Temperature	Terminal Finish	Terminal Position	No. of Ports	JESD-30 Code	Moisture Sensitivity Level (MSL)	Maximum Supply Voltage (Vsup)	Maximum Seated Height	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	Length	Maximum Access Time
KM416V256BLT-7	Samsung	FAST PAGE DRAM	COMMERCIAL	40	TSOP2	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS		GULL WING	ASYNCHRONOUS	80 mA	262144 words	NO	COMMON	3.3	3.3	16	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.46,32	DRAMs	.8 mm	70 Cel	3-STATE	256KX16	256K	0 Cel	TIN LEAD	DUAL	1	R-PDSO-G40		3.6 V	1.2 mm	10.16 mm	Not Qualified	4194304 bit	3 V	RAS ONLY/CAS BEFORE RAS/HIDDEN/SELF REFRESH	e0			.0001 Amp	18.41 mm	70 ns
MT42C4256Z-8	Micron Technology	VIDEO DRAM	COMMERCIAL	28	ZIP	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	NO	1	CMOS		THROUGH-HOLE	ASYNCHRONOUS	130 mA	262144 words			5	5	4	IN-LINE	ZIP28,.1	Other Memory ICs	1.27 mm	70 Cel	3-STATE	256KX4	256K	0 Cel	TIN LEAD	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	e0			.008 Amp	36 mm	80 ns
LH64256BK-70	Sharp Corporation	FAST PAGE DRAM	COMMERCIAL	26	SOJ	512	RECTANGULAR	PLASTIC/EPOXY	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-PDSO-J26		5.5 V	3.7 mm	7.7 mm	Not Qualified	1048576 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH					17.2 mm	70 ns
MT42C8128DJ-7	Micron Technology	VIDEO DRAM	COMMERCIAL	40	SOJ	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS		J BEND	ASYNCHRONOUS	160 mA	131072 words			5	5	8	SMALL OUTLINE	SOJ40,.44	Other Memory ICs	1.27 mm	70 Cel	3-STATE	128KX8	128K	0 Cel	TIN LEAD	DUAL	2	R-PDSO-J40		5.5 V	3.81 mm	10.21 mm	Not Qualified	1048576 bit	4.5 V	RAS ONLY; CAS BEFORE RAS; HIDDEN REFRESH	e0			.008 Amp	26.06 mm	70 ns
KM416C256BJ-6	Samsung	FAST PAGE DRAM	COMMERCIAL	40	SOJ	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS		J BEND	ASYNCHRONOUS	90 mA	262144 words	NO	COMMON	5	5	16	SMALL OUTLINE	SOJ40,.44	DRAMs	1.27 mm	70 Cel	3-STATE	256KX16	256K	0 Cel	TIN LEAD	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 REFRESH	e0			.001 Amp	26.04 mm	60 ns
KM416C256BJ-7	Samsung	FAST PAGE DRAM	COMMERCIAL	40	SOJ	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS		J BEND	ASYNCHRONOUS	80 mA	262144 words	NO	COMMON	5	5	16	SMALL OUTLINE	SOJ40,.44	DRAMs	1.27 mm	70 Cel	3-STATE	256KX16	256K	0 Cel	TIN LEAD	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 REFRESH	e0			.001 Amp	26.04 mm	70 ns
KM416V256ALT-7	Samsung	FAST PAGE DRAM	COMMERCIAL	40	TSOP2	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS		GULL WING	ASYNCHRONOUS	90 mA	262144 words	NO	COMMON	3.3	3.3	16	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.46,32	DRAMs	.8 mm	70 Cel	3-STATE	256KX16	256K	0 Cel	TIN LEAD	DUAL	1	R-PDSO-G40		3.6 V	1.2 mm	10.16 mm	Not Qualified	4194304 bit	3 V	RAS ONLY; CAS BEFORE RAS; HIDDEN REFRESH	e0			.0001 Amp	18.41 mm	70 ns
MT42C8256DJ-8	Micron Technology	VIDEO DRAM	COMMERCIAL	40	SOJ	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE WITH EDO	YES	1	CMOS		J BEND	ASYNCHRONOUS	195 mA	262144 words			5	5	8	SMALL OUTLINE	SOJ40,.44	Other Memory ICs	1.27 mm	70 Cel	3-STATE	256KX8	256K	0 Cel	TIN LEAD	DUAL	2	R-PDSO-J40		5.5 V	3.81 mm	10.21 mm	Not Qualified	2097152 bit	4.5 V	RAS ONLY; CAS BEFORE RAS; HIDDEN REFRESH	e0			.01 Amp	26.06 mm	80 ns
KM416C254BLT-6	Samsung	EDO DRAM	COMMERCIAL	40	TSOP2	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE WITH EDO	YES	1	CMOS		GULL WING	ASYNCHRONOUS	90 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	TIN LEAD	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	e0			.0002 Amp	18.41 mm	60 ns
KM416C256AJ-7	Samsung	FAST PAGE DRAM	COMMERCIAL	40	SOJ	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS		J BEND	ASYNCHRONOUS	110 mA	262144 words	NO	COMMON	5	5	16	SMALL OUTLINE	SOJ40,.44	DRAMs	1.27 mm	70 Cel	3-STATE	256KX16	256K	0 Cel	TIN LEAD	DUAL	1	R-PDSO-J40		5.5 V	3.56 mm	10.16 mm	Not Qualified	4194304 bit	4.5 V	RAS ONLY; CAS BEFORE RAS; HIDDEN REFRESH	e0			.001 Amp	26.04 mm	70 ns
KM44C256AP-8	Samsung	FAST PAGE DRAM	COMMERCIAL	20	DIP	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	NO	1	CMOS		THROUGH-HOLE	ASYNCHRONOUS	75 mA	262144 words		COMMON	5	5	4	IN-LINE	DIP20,.3	DRAMs	2.54 mm	70 Cel	3-STATE	256KX4	256K	0 Cel	TIN LEAD	DUAL	1	R-PDIP-T20	3	5.5 V	4.19 mm	7.62 mm	Not Qualified	1048576 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH	e0			.001 Amp	24.56 mm	80 ns
KM44C256BP-7	Samsung	FAST PAGE DRAM	COMMERCIAL	20	DIP	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	NO	1	CMOS		THROUGH-HOLE	ASYNCHRONOUS	80 mA	262144 words		COMMON	5	5	4	IN-LINE	DIP20,.3	DRAMs	2.54 mm	70 Cel	3-STATE	256KX4	256K	0 Cel	TIN LEAD	DUAL	1	R-PDIP-T20		5.5 V	4.65 mm	7.62 mm	Not Qualified	1048576 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH	e0			.001 Amp	24.56 mm	70 ns
KM44C256BZ-8	Samsung	FAST PAGE DRAM	COMMERCIAL	19	ZIP	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	NO	1	CMOS		THROUGH-HOLE	ASYNCHRONOUS	70 mA	262144 words		COMMON	5	5	4	IN-LINE	ZIP20,.1	DRAMs	1.27 mm	70 Cel	3-STATE	256KX4	256K	0 Cel	TIN LEAD	ZIG-ZAG	1	R-PZIP-T19		5.5 V	10.16 mm	2.96 mm	Not Qualified	1048576 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH	e0			.001 Amp	26.165 mm	80 ns
KM44C256CP-7	Samsung	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	Tin/Lead (Sn/Pb)	DUAL	1	R-PDIP-T20		5.5 V	4.65 mm	7.62 mm	Not Qualified	1048576 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH	e0			.001 Amp	24.56 mm	70 ns
KMM591000B-8	Samsung	FAST PAGE DRAM MODULE	COMMERCIAL	30	SIMM	512	RECTANGULAR	UNSPECIFIED	FAST PAGE	NO	1	CMOS		NO LEAD	ASYNCHRONOUS	630 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	20.447 mm		Not Qualified	9437184 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH				.009 Amp		80 ns
MB81C4256A-70P	Fujitsu	FAST PAGE DRAM	COMMERCIAL	20	DIP	512	RECTANGULAR	PLASTIC/EPOXY		NO		CMOS		THROUGH-HOLE		68 mA	262144 words		COMMON	5	5	4	IN-LINE	DIP20,.3	DRAMs	2.54 mm	70 Cel	3-STATE	256KX4	256K	0 Cel	Tin/Lead (Sn/Pb)	DUAL		R-PDIP-T20					Not Qualified	1048576 bit			e0			.001 Amp		70 ns
MCM511000AJ80	Motorola	FAST PAGE DRAM	COMMERCIAL	20	SOJ	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS		J BEND	ASYNCHRONOUS	70 mA	1048576 words		SEPARATE	5	5	1	SMALL OUTLINE	SOJ20/26,.34	DRAMs	1.27 mm	70 Cel	3-STATE	1MX1	1M	0 Cel	TIN LEAD	DUAL	1	R-PDSO-J20		5.5 V	3.75 mm	7.62 mm	Not Qualified	1048576 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH; TEST MODE	e0			.001 Amp	17.145 mm	80 ns
MCM514256AJ10	Motorola	FAST PAGE DRAM	COMMERCIAL	20	SOJ	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS		J BEND	ASYNCHRONOUS	60 mA	262144 words		COMMON	5	5	4	SMALL OUTLINE	SOJ20/26,.34	DRAMs	1.27 mm	70 Cel	3-STATE	256KX4	256K	0 Cel	TIN LEAD	DUAL	1	R-PDSO-J20		5.5 V	3.75 mm	7.62 mm	Not Qualified	1048576 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH	e0			.001 Amp	17.145 mm	100 ns
MCM514256AP70	Motorola	FAST PAGE DRAM	COMMERCIAL	20	DIP	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	NO	1	CMOS		THROUGH-HOLE	ASYNCHRONOUS	80 mA	262144 words		COMMON	5	5	4	IN-LINE	DIP20,.3	DRAMs	2.54 mm	70 Cel	3-STATE	256KX4	256K	0 Cel	Tin/Lead (Sn/Pb)	DUAL	1	R-PDIP-T20		5.5 V	4.44 mm	7.62 mm	Not Qualified	1048576 bit	4.5 V	RAS ONLY; CAS BEFORE RAS; HIDDEN REFRESH	e0			.001 Amp	24.64 mm	70 ns
MT43C8128AEJ-7	Micron Technology	VIDEO DRAM	COMMERCIAL	52	QCCJ	512	SQUARE	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS		J BEND	ASYNCHRONOUS	200 mA	131072 words			5	5	8	CHIP CARRIER	LDCC52,.8SQ	Other Memory ICs	1.27 mm	70 Cel	3-STATE	128KX8	128K	0 Cel	TIN LEAD	QUAD	3	S-PQCC-J52		5.25 V	4.57 mm	19.1262 mm	Not Qualified	1048576 bit	4.75 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH; 2 X 256 X 8 SAM	e0			.002 Amp	19.1262 mm	70 ns
TC511000AZ-70	Toshiba	FAST PAGE DRAM	COMMERCIAL	19	ZIP	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	NO	1	CMOS		THROUGH-HOLE	ASYNCHRONOUS		1048576 words			5		1	IN-LINE			1.27 mm	70 Cel		1MX1	1M	0 Cel	TIN LEAD	ZIG-ZAG	1	R-PZIP-T19		5.5 V	10.16 mm		Not Qualified	1048576 bit	4.5 V	RAS ONLY; CAS BEFORE RAS; HIDDEN REFRESH	e0				25.8 mm	70 ns
SMJ4C1024-12HLM	Texas Instruments	FAST PAGE DRAM	MILITARY	20	SON	512	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	FAST PAGE	YES	1	CMOS	38535Q/M;38534H;883B	NO LEAD	SYNCHRONOUS	60 mA	1048576 words		SEPARATE	5	5	1	SMALL OUTLINE	SOLCC20/26,.35	DRAMs	1.27 mm	125 Cel	3-STATE	1MX1	1M	-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	120 ns
TM024GAD8-10L	Texas Instruments	FAST PAGE DRAM MODULE	COMMERCIAL	30	SIMM	512	RECTANGULAR	UNSPECIFIED	FAST PAGE	NO	1	CMOS		NO LEAD	ASYNCHRONOUS	520 mA	1048576 words		COMMON	5	5	8	MICROELECTRONIC ASSEMBLY	SIM30	DRAMs	2.54 mm	70 Cel	3-STATE	1MX8	1M	0 Cel		SINGLE	1	R-XSMA-N30		5.5 V	20.4978 mm		Not Qualified	8388608 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH				.016 Amp		100 ns
TMS45160-80DGE	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	40	TSOP2	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS		GULL WING	ASYNCHRONOUS	140 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	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 REFRESH		NOT SPECIFIED	NOT SPECIFIED	.001 Amp	18.41 mm	80 ns
SMJ44C256-12HMM	Texas Instruments	FAST PAGE DRAM	MILITARY	20	SON	512	RECTANGULAR	CERAMIC		YES		CMOS	38535Q/M;38534H;883B	NO LEAD		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		R-XDSO-N20					Not Qualified	1048576 bit				NOT SPECIFIED	NOT SPECIFIED	.003 Amp		120 ns
TMX4C1024-15N	Texas Instruments	FAST PAGE DRAM		18	DIP	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	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
TM024GAD8-80	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						80 ns
SMJ4C1024-15SVM	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	55 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	150 ns
TMS48C138-10DJ	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	24	SOJ	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS		J BEND	ASYNCHRONOUS	70 mA	131072 words		COMMON	5	5	8	SMALL OUTLINE	SOJ24/26,.34	DRAMs	1.27 mm	70 Cel	3-STATE	128KX8	128K	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	100 ns
TMS55165-60DGE	Texas Instruments	VIDEO DRAM	COMMERCIAL	64	TSOP2	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS		GULL WING	ASYNCHRONOUS		262144 words			5		16	SMALL OUTLINE, THIN PROFILE			.65 mm	70 Cel	3-STATE	256KX16	256K	0 Cel		DUAL	2	R-PDSO-G64		5.5 V	1.2 mm	10.16 mm	Not Qualified	4194304 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH; 256 X 16 SAM PORT					23.495 mm	60 ns
TMX44C259-12DJ	Texas Instruments	NIBBLE MODE DRAM		20	SOJ	512	RECTANGULAR	PLASTIC/EPOXY	NIBBLE	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
TMS45169P-60DZ	Texas Instruments	EDO DRAM	COMMERCIAL	40	SOJ	512	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS		J BEND		180 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	.00035 Amp		60 ns
TMS44C256-12DJL	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	SOJ	512	RECTANGULAR	PLASTIC/EPOXY	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-PDSO-J20		5.5 V	3.76 mm	7.57 mm	Not Qualified	1048576 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH					17.145 mm	120 ns
SMJ44C251B-10SVL	Texas Instruments	VIDEO DRAM	COMMERCIAL	28	ZIP	512	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	FAST PAGE WITH EDO	NO	1	CMOS		THROUGH-HOLE	ASYNCHRONOUS		262144 words			5		4	IN-LINE			2.54 mm	70 Cel	3-STATE	256KX4	256K	0 Cel		ZIG-ZAG	2	R-CZIP-T28		5.5 V	13.08 mm	2.92 mm	Not Qualified	1048576 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH; 512 X 4 SAM PORT					36.83 mm	100 ns
SMJ44C251B-12HMM	Texas Instruments	VIDEO DRAM	MILITARY	28	SON	512	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	FAST PAGE	YES	1	CMOS	38535Q/M;38534H;883B	NO LEAD	ASYNCHRONOUS	100 mA	262144 words			5	5	4	SMALL OUTLINE	SOLCC28,.4	Other Memory ICs	1.27 mm	125 Cel	3-STATE	256KX4	256K	-55 Cel		DUAL	2	R-CDSO-N28		5.5 V	2.54 mm	10.16 mm	Not Qualified	1048576 bit	4.5 V	CAS BEFORE RAS/HIDDEN REFRESH		NOT SPECIFIED	NOT SPECIFIED	.015 Amp	18.288 mm	120 ns
TMX4C1029-10DJ	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	100 ns
TMS4C1024-10DN	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	SOJ	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS		J BEND	ASYNCHRONOUS	65 mA	1048576 words		SEPARATE	5	5	1	SMALL OUTLINE	SOJ20/26,.34	DRAMs	1.27 mm	70 Cel	3-STATE	1MX1	1M	0 Cel		DUAL	1	R-PDSO-J20		5.5 V	1.83 mm	7.47 mm	Not Qualified	1048576 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH		NOT SPECIFIED	NOT SPECIFIED	.002 Amp	16.51 mm	100 ns
SMJ44C256-15HLM	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	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-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	150 ns
TMS44C257-10DJL	Texas Instruments	STATIC COLUMN DRAM	COMMERCIAL	20	SOJ	512	RECTANGULAR	PLASTIC/EPOXY	STATIC COLUMN	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-PDSO-J20		5.5 V	3.76 mm	7.57 mm	Not Qualified	1048576 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH					17.145 mm	100 ns
SMJ4C1024-10JD	Texas Instruments	FAST PAGE DRAM	MILITARY	18	DIP	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		DUAL	1	R-CDIP-T18		5.5 V	4.45 mm	7.62 mm	Not Qualified	1048576 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH					22.606 mm	100 ns
SMJ44C251-10HJM	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,.4	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		NOT SPECIFIED	NOT SPECIFIED	.015 Amp	18.542 mm	100 ns
SMJ55166-80GB	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			2.54 mm	125 Cel	3-STATE	256KX16	256K	-55 Cel		PERPENDICULAR	2	S-CPGA-P68		5.5 V	3.62 mm	24.38 mm	Not Qualified	4194304 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH; 256 X 16 SAM PORT					24.38 mm	80 ns
SMJ44C251B-12JDL	Texas Instruments	VIDEO DRAM	COMMERCIAL	28	DIP	512	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	FAST PAGE WITH EDO	NO	1	CMOS		THROUGH-HOLE	ASYNCHRONOUS		262144 words			5		4	IN-LINE			2.54 mm	70 Cel	3-STATE	256KX4	256K	0 Cel		DUAL	2	R-CDIP-T28		5.5 V	3.56 mm	10.16 mm	Not Qualified	1048576 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH; 512 X 4 SAM PORT						120 ns
SMJ4C1024-15FQ	Texas Instruments	FAST PAGE DRAM	MILITARY	20	SON	512	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	FAST PAGE	YES	1	CMOS		NO LEAD	ASYNCHRONOUS		1048576 words			5		1	SMALL OUTLINE			1.27 mm	125 Cel	3-STATE	1MX1	1M	-55 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	150 ns
TMS44C256-80N	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	DIP	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	NO	1	CMOS		THROUGH-HOLE	ASYNCHRONOUS	75 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	80 ns
TMS44C250-1DZL	Texas Instruments	VIDEO DRAM	COMMERCIAL	28	SOJ	512	RECTANGULAR	PLASTIC/EPOXY	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	2	R-PDSO-J28		5.25 V	3.76 mm	10.16 mm	Not Qualified	1048576 bit	4.75 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH; 512 X 4 SAM PORT					18.415 mm	100 ns
TMS45165S-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; BYTE WRITE		NOT SPECIFIED	NOT SPECIFIED	.0002 Amp	18.41 mm	100 ns
TMS45165P-10DZ	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	40	SOJ	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS		J BEND	ASYNCHRONOUS	120 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		NOT SPECIFIED	NOT SPECIFIED	.0002 Amp	26.035 mm	100 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.