LSOP DRAM 28

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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	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 Time At Peak Reflow Temperature (s)	Peak Reflow Temperature (C)	Maximum Standby Current	Length	Maximum Access Time
TMS46400P-70DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	60 mA	1048576 words	YES	COMMON	3.3	3.3	4	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	1MX4	1M		DUAL	1	R-PDSO-G20	3.6 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	3 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH/BATTERY BACKUP/SELF REFRESH		NOT SPECIFIED	NOT SPECIFIED	.0005 Amp	17.14 mm	70 ns
TMS44100-80DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	80 mA	4194304 words	NO	SEPARATE	5	5	1	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	4MX1	4M		DUAL	1	R-PDSO-G20	5.5 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH		NOT SPECIFIED	NOT SPECIFIED	.001 Amp	17.14 mm	80 ns
TMS46100-80DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	50 mA	4194304 words	NO	SEPARATE	3.3	3.3	1	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	4MX1	4M		DUAL	1	R-PDSO-G20	3.6 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	3 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH		NOT SPECIFIED	NOT SPECIFIED	.0003 Amp	17.14 mm	80 ns
TMS44400-70DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	90 mA	1048576 words	NO	COMMON	5	5	4	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	1MX4	1M		DUAL	1	R-PDSO-G20	5.5 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH		NOT SPECIFIED	NOT SPECIFIED	.001 Amp	17.14 mm	70 ns
TMS44400-60DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	105 mA	1048576 words	NO	COMMON	5	5	4	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	1MX4	1M		DUAL	1	R-PDSO-G20	5.5 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH		NOT SPECIFIED	NOT SPECIFIED	.001 Amp	17.14 mm	60 ns
TMS46100-70DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	60 mA	4194304 words	NO	SEPARATE	3.3	3.3	1	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	4MX1	4M		DUAL	1	R-PDSO-G20	3.6 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	3 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH		NOT SPECIFIED	NOT SPECIFIED	.0003 Amp	17.14 mm	70 ns
TMS46400P-60DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	70 mA	1048576 words	YES	COMMON	3.3	3.3	4	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	1MX4	1M		DUAL	1	R-PDSO-G20	3.6 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	3 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH/BATTERY BACKUP/SELF REFRESH		NOT SPECIFIED	NOT SPECIFIED	.0005 Amp	17.14 mm	60 ns
TMS44100-60DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	105 mA	4194304 words	NO	SEPARATE	5	5	1	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	4MX1	4M		DUAL	1	R-PDSO-G20	5.5 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH		NOT SPECIFIED	NOT SPECIFIED	.001 Amp	17.14 mm	60 ns
TMS44400-80DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	80 mA	1048576 words	NO	COMMON	5	5	4	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	1MX4	1M		DUAL	1	R-PDSO-G20	5.5 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH		NOT SPECIFIED	NOT SPECIFIED	.001 Amp	17.14 mm	80 ns
TMS44100-70DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	90 mA	4194304 words	NO	SEPARATE	5	5	1	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	4MX1	4M		DUAL	1	R-PDSO-G20	5.5 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH		NOT SPECIFIED	NOT SPECIFIED	.001 Amp	17.14 mm	70 ns
TMS44400P-70DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	90 mA	1048576 words	YES	COMMON	5	5	4	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	1MX4	1M		DUAL	1	R-PDSO-G20	5.5 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH/BATTERY BACKUP/SELF REFRESH		NOT SPECIFIED	NOT SPECIFIED	.0005 Amp	17.14 mm	70 ns
TMS46100P-80DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	50 mA	4194304 words	YES	SEPARATE	3.3	3.3	1	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	4MX1	4M		DUAL	1	R-PDSO-G20	3.6 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	3 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH/BATTERY BACKUP/SELF REFRESH		NOT SPECIFIED	NOT SPECIFIED	.0002 Amp	17.14 mm	80 ns
TMS46400-70DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	60 mA	1048576 words	NO	COMMON	3.3	3.3	4	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	1MX4	1M		DUAL	1	R-PDSO-G20	3.6 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	3 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH		NOT SPECIFIED	NOT SPECIFIED	.0003 Amp	17.14 mm	70 ns
TMS44400P-80DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	80 mA	1048576 words	YES	COMMON	5	5	4	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	1MX4	1M		DUAL	1	R-PDSO-G20	5.5 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH/BATTERY BACKUP/SELF REFRESH		NOT SPECIFIED	NOT SPECIFIED	.0005 Amp	17.14 mm	80 ns
TMS46400-80DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	50 mA	1048576 words	NO	COMMON	3.3	3.3	4	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	1MX4	1M		DUAL	1	R-PDSO-G20	3.6 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	3 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH		NOT SPECIFIED	NOT SPECIFIED	.0003 Amp	17.14 mm	80 ns
TMS46100P-60DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	70 mA	4194304 words	YES	SEPARATE	3.3	3.3	1	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	4MX1	4M		DUAL	1	R-PDSO-G20	3.6 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	3 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH/BATTERY BACKUP/SELF REFRESH		NOT SPECIFIED	NOT SPECIFIED	.0002 Amp	17.14 mm	60 ns
TMS44400P-60DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	105 mA	1048576 words	YES	COMMON	5	5	4	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	1MX4	1M		DUAL	1	R-PDSO-G20	5.5 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH/BATTERY BACKUP/SELF REFRESH		NOT SPECIFIED	NOT SPECIFIED	.0005 Amp	17.14 mm	60 ns
TMS46400-60DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	70 mA	1048576 words	NO	COMMON	3.3	3.3	4	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	1MX4	1M		DUAL	1	R-PDSO-G20	3.6 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	3 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH		NOT SPECIFIED	NOT SPECIFIED	.0003 Amp	17.14 mm	60 ns
TMS44100P-60DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	105 mA	4194304 words	YES	SEPARATE	5	5	1	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	4MX1	4M		DUAL	1	R-PDSO-G20	5.5 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH/BATTERY BACKUP/SELF REFRESH		NOT SPECIFIED	NOT SPECIFIED	.0005 Amp	17.14 mm	60 ns
TMS44100P-80DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	80 mA	4194304 words	YES	SEPARATE	5	5	1	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	4MX1	4M		DUAL	1	R-PDSO-G20	5.5 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH/BATTERY BACKUP/SELF REFRESH		NOT SPECIFIED	NOT SPECIFIED	.0005 Amp	17.14 mm	80 ns
TMS46100P-70DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	60 mA	4194304 words	YES	SEPARATE	3.3	3.3	1	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	4MX1	4M		DUAL	1	R-PDSO-G20	3.6 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	3 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH/BATTERY BACKUP/SELF REFRESH		NOT SPECIFIED	NOT SPECIFIED	.0002 Amp	17.14 mm	70 ns
TMS46100-60DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	70 mA	4194304 words	NO	SEPARATE	3.3	3.3	1	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	4MX1	4M		DUAL	1	R-PDSO-G20	3.6 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	3 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH		NOT SPECIFIED	NOT SPECIFIED	.0003 Amp	17.14 mm	60 ns
TMS46400P-80DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	50 mA	1048576 words	YES	COMMON	3.3	3.3	4	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	1MX4	1M		DUAL	1	R-PDSO-G20	3.6 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	3 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH/BATTERY BACKUP/SELF REFRESH		NOT SPECIFIED	NOT SPECIFIED	.0005 Amp	17.14 mm	80 ns
TMS44100P-70DGA	Texas Instruments	FAST PAGE DRAM	COMMERCIAL	20	LSOP	1024	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	90 mA	4194304 words	YES	SEPARATE	5	5	1	SMALL OUTLINE, LOW PROFILE	TSSOP20/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	4MX1	4M		DUAL	1	R-PDSO-G20	5.5 V	1.27 mm	7.62 mm	Not Qualified	4194304 bit	4.5 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH/BATTERY BACKUP/SELF REFRESH		NOT SPECIFIED	NOT SPECIFIED	.0005 Amp	17.14 mm	70 ns
HYB3116400BTL-60	Infineon Technologies	FAST PAGE DRAM	COMMERCIAL	24	LSOP	4096	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	90 mA	4194304 words	YES	COMMON	3.3	3.3	4	SMALL OUTLINE, LOW PROFILE	TSOP24/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	4MX4	4M	TIN LEAD	DUAL	1	R-PDSO-G24	3.6 V	1.27 mm	7.62 mm	Not Qualified	16777216 bit	3 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH/SELF REFRESH	e0			.0002 Amp	17.27 mm	60 ns
HYB3116400BTL-70	Infineon Technologies	FAST PAGE DRAM	COMMERCIAL	24	LSOP	4096	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	80 mA	4194304 words	YES	COMMON	3.3	3.3	4	SMALL OUTLINE, LOW PROFILE	TSOP24/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	4MX4	4M	TIN LEAD	DUAL	1	R-PDSO-G24	3.6 V	1.27 mm	7.62 mm	Not Qualified	16777216 bit	3 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH/SELF REFRESH	e0			.0002 Amp	17.27 mm	70 ns
HYB3116400BTL-50	Infineon Technologies	FAST PAGE DRAM	COMMERCIAL	24	LSOP	4096	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	100 mA	4194304 words	YES	COMMON	3.3	3.3	4	SMALL OUTLINE, LOW PROFILE	TSOP24/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	4MX4	4M	TIN LEAD	DUAL	1	R-PDSO-G24	3.6 V	1.27 mm	7.62 mm	Not Qualified	16777216 bit	3 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH/SELF REFRESH	e0			.0002 Amp	17.27 mm	50 ns
HYB3116400BT-70	Infineon Technologies	FAST PAGE DRAM	COMMERCIAL	24	LSOP	4096	RECTANGULAR	PLASTIC/EPOXY	FAST PAGE	YES	1	CMOS	GULL WING	ASYNCHRONOUS	80 mA	4194304 words	YES	COMMON	3.3	3.3	4	SMALL OUTLINE, LOW PROFILE	TSOP24/26,.36	DRAMs	1.27 mm	70 Cel	3-STATE	4MX4	4M	TIN LEAD	DUAL	1	R-PDSO-G24	3.6 V	1.27 mm	7.62 mm	Not Qualified	16777216 bit	3 V	RAS ONLY/CAS BEFORE RAS/HIDDEN REFRESH	e0			.001 Amp	17.27 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.