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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	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	Reverse Pinout	Output Characteristics	Organization	No. of Words Code	Terminal Finish	Terminal Position	No. of Ports	JESD-30 Code	Maximum Supply Voltage (Vsup)	Maximum Seated Height	Width	Qualification	Memory Density	Minimum Supply Voltage (Vsup)	Additional Features	JESD-609 Code	Maximum Standby Current	Length	Maximum Access Time
UPD424210G5-70-7JF	Renesas Electronics	EDO DRAM	COMMERCIAL	40	TSOP	512	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		150 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	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4194304 bit			e0	.001 Amp		70 ns
UPD424260V-80	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	ZIP	512	RECTANGULAR	PLASTIC/EPOXY		NO		CMOS	THROUGH-HOLE		145 mA	262144 words	NO	COMMON	5	5	16	IN-LINE	ZIP40,.1	DRAMs	1.27 mm	70 Cel		3-STATE	256KX16	256K	Tin/Lead (Sn/Pb)	ZIG-ZAG		R-PZIP-T40				Not Qualified	4194304 bit			e0	.001 Amp		80 ns
UPD42S4280ALE-80	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	SOJ	512	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	J BEND		140 mA	262144 words	YES	COMMON	5	5	18	SMALL OUTLINE	SOJ40,.44	DRAMs	1.27 mm	70 Cel		3-STATE	256KX18	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-J40				Not Qualified	4718592 bit			e0	.0003 Amp		80 ns
UPD421165LE-30-A	Renesas Electronics	EDO DRAM	COMMERCIAL	40	SOJ	256	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	J BEND		115 mA	65536 words		COMMON	5	5	16	SMALL OUTLINE	SOJ40,.44	DRAMs	1.27 mm	70 Cel		3-STATE	64KX16	64K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-J40				Not Qualified	1048576 bit			e0	.001 Amp		70 ns
UPD42S4190G5-70-7JF	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	TSOP	1024	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		160 mA	262144 words	YES	COMMON	5	5	18	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.46,32	DRAMs	.8 mm	70 Cel		3-STATE	256KX18	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4718592 bit			e0	.0002 Amp		70 ns
UPD42S4280G5-80-7KF	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	TSOP	512	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		175 mA	262144 words	YES	COMMON	5	5	18	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.46,32	DRAMs	.8 mm	70 Cel	YES	3-STATE	256KX18	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4718592 bit			e0	.00015 Amp		80 ns
UPD424210AG5-50	Renesas Electronics	EDO DRAM	COMMERCIAL	40	TSOP	512	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		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	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4194304 bit			e0	.001 Amp		50 ns
UPD424260ALLE-A60	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	SOJ	512	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	J BEND		80 mA	262144 words	NO	COMMON	3.3	3.3	16	SMALL OUTLINE	SOJ40,.44	DRAMs	1.27 mm	70 Cel		3-STATE	256KX16	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-J40				Not Qualified	4194304 bit			e0	.0005 Amp		60 ns
UPD424280LG5M-A60	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	TSOP	512	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		150 mA	262144 words	NO	COMMON	3.3	3.3	18	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.46,32	DRAMs	.8 mm	70 Cel	YES	3-STATE	256KX18	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4718592 bit			e0	.0001 Amp		60 ns
UPD424280LV-A60	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	ZIP	512	RECTANGULAR	PLASTIC/EPOXY		NO		CMOS	THROUGH-HOLE		150 mA	262144 words	NO	COMMON	3.3	3.3	18	IN-LINE	ZIP40,.1	DRAMs	1.27 mm	70 Cel		3-STATE	256KX18	256K	Tin/Lead (Sn/Pb)	ZIG-ZAG		R-PZIP-T40				Not Qualified	4718592 bit			e0	.0001 Amp		60 ns
UPD424263AV-60	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	ZIP	512	RECTANGULAR	PLASTIC/EPOXY		NO		CMOS	THROUGH-HOLE		140 mA	262144 words	NO	COMMON	5	5	16	IN-LINE	ZIP40,.1	DRAMs	1.27 mm	70 Cel		3-STATE	256KX16	256K	Tin/Lead (Sn/Pb)	ZIG-ZAG		R-PZIP-T40				Not Qualified	4194304 bit			e0	.0003 Amp		60 ns
UPD424260ALE-80	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	SOJ	512	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	J BEND		120 mA	262144 words	NO	COMMON	5	5	16	SMALL OUTLINE	SOJ40,.44	DRAMs	1.27 mm	70 Cel		3-STATE	256KX16	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-J40				Not Qualified	4194304 bit			e0	.0003 Amp		80 ns
UPD42S4170LG5-A80-7JF	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	TSOP	1024	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		80 mA	262144 words	YES	COMMON	3.3	3.3	16	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.46,32	DRAMs	.8 mm	70 Cel		3-STATE	256KX16	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4194304 bit			e0	.0001 Amp		80 ns
UPD424280LLE-A70	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	SOJ	512	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	J BEND		140 mA	262144 words	NO	COMMON	3.3	3.3	18	SMALL OUTLINE	SOJ40,.44	DRAMs	1.27 mm	70 Cel		3-STATE	256KX18	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-J40				Not Qualified	4718592 bit			e0	.0001 Amp		70 ns
UPD424190AG5M-70	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	TSOP	1024	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		120 mA	262144 words	NO	COMMON	5	5	18	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.46,32	DRAMs	.8 mm	70 Cel	YES	3-STATE	256KX18	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4718592 bit			e0	.0003 Amp		70 ns
UPD42S4260LV-A60	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	ZIP	512	RECTANGULAR	PLASTIC/EPOXY		NO		CMOS	THROUGH-HOLE		140 mA	262144 words	YES	COMMON	3.3	3.3	16	IN-LINE	ZIP40,.1	DRAMs	1.27 mm	70 Cel		3-STATE	256KX16	256K	Tin/Lead (Sn/Pb)	ZIG-ZAG		R-PZIP-T40				Not Qualified	4194304 bit			e0	.0001 Amp		60 ns
UPD424170LG5-A80-7JF	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	TSOP	1024	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		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	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4194304 bit			e0	.0005 Amp		80 ns
UPD42S4260ALLE-A80	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	SOJ	512	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	J BEND		60 mA	262144 words	YES	COMMON	3.3	3.3	16	SMALL OUTLINE	SOJ40,.44	DRAMs	1.27 mm	70 Cel		3-STATE	256KX16	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-J40				Not Qualified	4194304 bit			e0	.00008 Amp		80 ns
UPD42S4260LG5-A80-7JF	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	TSOP	512	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		120 mA	262144 words	YES	COMMON	3.3	3.3	16	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.46,32	DRAMs	.8 mm	70 Cel		3-STATE	256KX16	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4194304 bit			e0	.0001 Amp		80 ns
UPD424260ALG5-A80	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	TSOP	512	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		60 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	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4194304 bit			e0	.0005 Amp		80 ns
UPD424270G5-70-7JF	Renesas Electronics	FAST PAGE 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	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4194304 bit			e0	.001 Amp		70 ns
UPD42S4260G5M-80	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	TSOP	512	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		145 mA	262144 words	YES	COMMON	5	5	16	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.46,32	DRAMs	.8 mm	70 Cel	YES	3-STATE	256KX16	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4194304 bit			e0	.00015 Amp		80 ns
UPD42S4170AG5-80	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	TSOP	1024	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		90 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	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4194304 bit			e0	.0003 Amp		80 ns
UPD424190LE-70	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	SOJ	1024	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	J BEND		160 mA	262144 words	NO	COMMON	5	5	18	SMALL OUTLINE	SOJ40,.44	DRAMs	1.27 mm	70 Cel		3-STATE	256KX18	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-J40				Not Qualified	4718592 bit			e0	.001 Amp		70 ns
UPD424190G5-70-7JF	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	TSOP	1024	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		160 mA	262144 words	NO	COMMON	5	5	18	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.46,32	DRAMs	.8 mm	70 Cel		3-STATE	256KX18	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4718592 bit			e0	.001 Amp		70 ns
UPD42S4260AV-60	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	ZIP	512	RECTANGULAR	PLASTIC/EPOXY		NO		CMOS	THROUGH-HOLE		140 mA	262144 words	YES	COMMON	5	5	16	IN-LINE	ZIP40,.1	DRAMs	1.27 mm	70 Cel		3-STATE	256KX16	256K	Tin/Lead (Sn/Pb)	ZIG-ZAG		R-PZIP-T40				Not Qualified	4194304 bit			e0	.0003 Amp		60 ns
UPD42S4170AG5M-70	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	TSOP	1024	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		100 mA	262144 words	YES	COMMON	5	5	16	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.46,32	DRAMs	.8 mm	70 Cel	YES	3-STATE	256KX16	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4194304 bit			e0	.0003 Amp		70 ns
UPD424190LV-A60	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	ZIP	1024	RECTANGULAR	PLASTIC/EPOXY		NO		CMOS	THROUGH-HOLE		120 mA	262144 words	NO	COMMON	3.3	3.3	18	IN-LINE	ZIP40,.1	DRAMs	1.27 mm	70 Cel		3-STATE	256KX18	256K	Tin/Lead (Sn/Pb)	ZIG-ZAG		R-PZIP-T40				Not Qualified	4718592 bit			e0	.0001 Amp		60 ns
UPD42S4210ALG5-A80	Renesas Electronics	EDO DRAM	COMMERCIAL	40	TSOP	512	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		60 mA	262144 words	YES	COMMON	3.3	3.3	16	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.46,32	DRAMs	.8 mm	70 Cel		3-STATE	256KX16	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4194304 bit			e0	.00008 Amp		80 ns
UPD424210LE-60-G	Renesas Electronics	EDO DRAM	COMMERCIAL	40	SOJ	512	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	J BEND		160 mA	262144 words	NO	COMMON	5	5	16	SMALL OUTLINE	SOJ40,.44	DRAMs	1.27 mm	70 Cel		3-STATE	256KX16	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-J40				Not Qualified	4194304 bit			e0	.001 Amp		60 ns
UPD424170AG5M-80	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	TSOP	1024	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		90 mA	262144 words	NO	COMMON	5	5	16	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.46,32	DRAMs	.8 mm	70 Cel	YES	3-STATE	256KX16	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4194304 bit			e0	.0003 Amp		80 ns
UPD42S4260LLE-A60	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	SOJ	512	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	J BEND		140 mA	262144 words	YES	COMMON	3.3	3.3	16	SMALL OUTLINE	SOJ40,.44	DRAMs	1.27 mm	70 Cel		3-STATE	256KX16	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-J40				Not Qualified	4194304 bit			e0	.0001 Amp		60 ns
UPD424170AG5-70	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	TSOP	1024	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		100 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	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4194304 bit			e0	.0003 Amp		70 ns
UPD42S4263AG5M-60	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	TSOP	512	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		140 mA	262144 words	YES	COMMON	5	5	16	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.36,32	DRAMs	.8 mm	70 Cel	YES	3-STATE	256KX16	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4194304 bit			e0	.0003 Amp		60 ns
UPD42S4280LG5-A70	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	TSOP	512	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		140 mA	262144 words	YES	COMMON	3.3	3.3	18	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.46,32	DRAMs	.8 mm	70 Cel		3-STATE	256KX18	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4718592 bit			e0	.0001 Amp		70 ns
UPD421165G5-30-A	Renesas Electronics	EDO DRAM	COMMERCIAL	40	TSOP	256	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		115 mA	65536 words		COMMON	5	5	16	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.46,32	DRAMs	.8 mm	70 Cel		3-STATE	64KX16	64K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	1048576 bit			e0	.001 Amp		70 ns
UPD42S4280AG5M-70	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	TSOP	512	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		150 mA	262144 words	YES	COMMON	5	5	18	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.46,32	DRAMs	.8 mm	70 Cel	YES	3-STATE	256KX18	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4718592 bit			e0	.0003 Amp		70 ns
UPD42S4190LG5-A80	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	TSOP	1024	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		100 mA	262144 words	YES	COMMON	3.3	3.3	18	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.46,32	DRAMs	.8 mm	70 Cel		3-STATE	256KX18	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4718592 bit			e0	.0001 Amp		80 ns
UPD42S4280G5-70-7KF	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	TSOP	512	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		190 mA	262144 words	YES	COMMON	5	5	18	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.46,32	DRAMs	.8 mm	70 Cel	YES	3-STATE	256KX18	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4718592 bit			e0	.00015 Amp		70 ns
UPD424170LV-A70	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	ZIP	1024	RECTANGULAR	PLASTIC/EPOXY		NO		CMOS	THROUGH-HOLE		90 mA	262144 words	NO	COMMON	3.3	3.3	16	IN-LINE	ZIP40,.1	DRAMs	1.27 mm	70 Cel		3-STATE	256KX16	256K	Tin/Lead (Sn/Pb)	ZIG-ZAG		R-PZIP-T40				Not Qualified	4194304 bit			e0	.0005 Amp		70 ns
UPD42S4263LV-A60	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	ZIP	512	RECTANGULAR	PLASTIC/EPOXY		NO		CMOS	THROUGH-HOLE		130 mA	262144 words	YES	COMMON	3.3	3.3	16	IN-LINE	ZIP40,.1	DRAMs	1.27 mm	70 Cel		3-STATE	256KX16	256K	Tin/Lead (Sn/Pb)	ZIG-ZAG		R-PZIP-T40				Not Qualified	4194304 bit			e0	.0001 Amp		60 ns
UPD424263AG5M-60	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	TSOP	512	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		140 mA	262144 words	NO	COMMON	5	5	16	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.36,32	DRAMs	.8 mm	70 Cel	YES	3-STATE	256KX16	256K	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4194304 bit			e0	.0003 Amp		60 ns
UPD42S4170G5-80-7JF	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	TSOP	1024	RECTANGULAR	PLASTIC/EPOXY		YES		CMOS	GULL WING		105 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	Tin/Lead (Sn/Pb)	DUAL		R-PDSO-G40				Not Qualified	4194304 bit			e0	.0002 Amp		80 ns
UPD42S4280LV-A60	Renesas Electronics	FAST PAGE DRAM	COMMERCIAL	40	ZIP	512	RECTANGULAR	PLASTIC/EPOXY		NO		CMOS	THROUGH-HOLE		150 mA	262144 words	YES	COMMON	3.3	3.3	18	IN-LINE	ZIP40,.1	DRAMs	1.27 mm	70 Cel		3-STATE	256KX18	256K	Tin/Lead (Sn/Pb)	ZIG-ZAG		R-PZIP-T40				Not Qualified	4718592 bit			e0	.0001 Amp		60 ns
KM416C64J-L6	Samsung	EDO DRAM	COMMERCIAL	40	SOJ	256	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE WITH EDO	YES	1	CMOS	J BEND	ASYNCHRONOUS	90 mA	65536 words	YES	COMMON	5	5	16	SMALL OUTLINE	SOJ40,.44	DRAMs	1.27 mm	70 Cel		3-STATE	64KX16	64K	TIN LEAD	DUAL	1	R-PDSO-J40	5.5 V	3.76 mm	10.16 mm	Not Qualified	1048576 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN/SELF REFRESH	e0	.00015 Amp	26.04 mm	60 ns
KM418C256BT-8	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	5	5	18	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.46,32	DRAMs	.8 mm	70 Cel		3-STATE	256KX18	256K	Tin/Lead (Sn/Pb)	DUAL	1	R-PDSO-G40	5.5 V	1.2 mm	10.16 mm	Not Qualified	4718592 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH	e0	.001 Amp	18.41 mm	80 ns
KM416C157AT-8	Samsung	FAST PAGE DRAM	COMMERCIAL	40	TSOP2	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	80 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	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 REFRESH	e0	.001 Amp	18.41 mm	80 ns
KM416C254BLTR-7	Samsung	EDO DRAM	COMMERCIAL	40	TSOP2-R	512	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE WITH EDO	YES	1	CMOS	GULL WING	ASYNCHRONOUS	80 mA	262144 words	NO	COMMON	5	5	16	SMALL OUTLINE, THIN PROFILE	TSOP40/44,.46,32	DRAMs	.8 mm	70 Cel	YES	3-STATE	256KX16	256K	Tin/Lead (Sn/Pb)	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	70 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.