MASK ROM

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Part	Manufacturer	Memory IC Type	Temperature Grade	No. of Terminals	Package Code	Package Shape	Package Body Material	Surface Mount	No. of Functions	Technology	Terminal Form	Parallel or Serial	Operating Mode	Maximum Supply Current	No. of Words	Nominal Supply Voltage / Vsup (V)	Power Supplies (V)	Memory Width	Package Style (Meter)	Package Equivalence Code	Alternate Memory Width	Sub-Category	Terminal Pitch	Maximum Operating Temperature	Output Characteristics	Organization	No. of Words Code	Minimum Operating Temperature	Terminal Finish	Terminal Position	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
S19FL032AMA0XXX03	Infineon Technologies	MASK ROM	INDUSTRIAL	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES		CMOS	GULL WING			19 mA			3/3.3		SMALL OUTLINE	SOP16,.4		MASK ROMs	1.27 mm	85 Cel				-40 Cel		DUAL	R-PDSO-G16				Not Qualified	33554432 bit				.00005 Amp
S19FL032PMF0XXX01	Infineon Technologies	MASK ROM	INDUSTRIAL	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES		CMOS	GULL WING			38 mA			3/3.3		SMALL OUTLINE	SOP16,.4		MASK ROMs	1.27 mm	85 Cel				-40 Cel		DUAL	R-PDSO-G16				Not Qualified	33554432 bit				.0002 Amp
S19FL032AMA0XXX01	Infineon Technologies	MASK ROM	INDUSTRIAL	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES		CMOS	GULL WING			19 mA			3/3.3		SMALL OUTLINE	SOP16,.4		MASK ROMs	1.27 mm	85 Cel				-40 Cel		DUAL	R-PDSO-G16				Not Qualified	33554432 bit				.00005 Amp
S19FL064AMF0XXX01	Infineon Technologies	MASK ROM	INDUSTRIAL	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES		CMOS	GULL WING			19 mA			3/3.3		SMALL OUTLINE	SOP16,.4		MASK ROMs	1.27 mm	85 Cel				-40 Cel		DUAL	R-PDSO-G16				Not Qualified	67108864 bit				.00005 Amp
AM27X512-70JI	Infineon Technologies	MASK ROM	INDUSTRIAL	32	QCCJ	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	J BEND	PARALLEL	ASYNCHRONOUS	30 mA	65536 words	5	5	8	CHIP CARRIER	LDCC32,.5X.6		MASK ROMs	1.27 mm	85 Cel	3-STATE	64KX8	64K	-40 Cel	TIN LEAD	QUAD	R-PQCC-J32	5.5 V			Not Qualified	524288 bit	4.5 V		e0	.0001 Amp		70 ns
S19FL032PMF0XXX03	Infineon Technologies	MASK ROM	INDUSTRIAL	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES		CMOS	GULL WING			38 mA			3/3.3		SMALL OUTLINE	SOP16,.4		MASK ROMs	1.27 mm	85 Cel				-40 Cel		DUAL	R-PDSO-G16				Not Qualified	33554432 bit				.0002 Amp
S19FL032AMF0XXX03	Infineon Technologies	MASK ROM	INDUSTRIAL	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES		CMOS	GULL WING			19 mA			3/3.3		SMALL OUTLINE	SOP16,.4		MASK ROMs	1.27 mm	85 Cel				-40 Cel		DUAL	R-PDSO-G16				Not Qualified	33554432 bit				.00005 Amp
S19FL032PMF1XXX03	Infineon Technologies	MASK ROM	INDUSTRIAL	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES		CMOS	GULL WING			38 mA			3/3.3		SMALL OUTLINE	SOP8,.3		MASK ROMs	1.27 mm	85 Cel				-40 Cel		DUAL	R-PDSO-G8				Not Qualified	33554432 bit				.0002 Amp
TC53257P	Toshiba	MASK ROM	INDUSTRIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE			40 mA	32768 words	5	5	8	IN-LINE	DIP28,.6		MASK ROMs	2.54 mm	85 Cel		32KX8	32K	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28				Not Qualified	262144 bit			e0			200 ns
TC538200F(TP2)	Toshiba	MASK ROM	COMMERCIAL	44	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		1048576 words	5		8	SMALL OUTLINE		16		1.27 mm	70 Cel	3-STATE	1MX8	1M	0 Cel	TIN LEAD	DUAL	R-PDSO-G44	5.5 V	3.1 mm	12.6 mm	Not Qualified	8388608 bit	4.5 V		e0		28.2 mm	200 ns
TC538200AF	Toshiba	MASK ROM	COMMERCIAL	44	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		1048576 words	5		8	SMALL OUTLINE				1.27 mm	70 Cel	3-STATE	1MX8	1M	0 Cel	TIN LEAD	DUAL	R-PDSO-G44	5.5 V	3.1 mm	12.6 mm	Not Qualified	8388608 bit	4.5 V		e0		28.2 mm	150 ns
TC538000F-20	Toshiba	MASK ROM	COMMERCIAL	32	SOP	RECTANGULAR	PLASTIC/EPOXY	YES		CMOS	GULL WING			50 mA	1048576 words	5	5	8	SMALL OUTLINE	SOP32,.56		MASK ROMs	1.27 mm	70 Cel		1MX8	1M	0 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDSO-G32				Not Qualified	8388608 bit			e0	.0001 Amp		200 ns
TH6M162000A	Toshiba	MASK ROM CARD							1	CMOS		PARALLEL			2097152 words			16								2MX16	2M								Not Qualified	33554432 bit						150 ns
TC534000P	Toshiba	MASK ROM	INDUSTRIAL	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		524288 words	5		8	IN-LINE				2.54 mm	85 Cel	3-STATE	512KX8	512K	-40 Cel	TIN LEAD	DUAL	R-PDIP-T32	5.5 V	4.8 mm	15.24 mm	Not Qualified	4194304 bit	4.5 V		e0		42 mm	250 ns
TC5316210BFT	Toshiba	MASK ROM	COMMERCIAL	44	TSOP2	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		2097152 words	5		8	SMALL OUTLINE, THIN PROFILE		16		.8 mm	70 Cel		2MX8	2M	0 Cel	TIN LEAD	DUAL	R-PDSO-G44	5.5 V	1.2 mm	10.16 mm	Not Qualified	16777216 bit	4.5 V		e0		18.41 mm	150 ns
TC5332201AP	Toshiba	MASK ROM	COMMERCIAL	42	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		4194304 words	5		8	IN-LINE				2.54 mm	70 Cel		4MX8	4M	-10 Cel	TIN LEAD	DUAL	R-PDIP-T42	5.5 V	4.8 mm	15.24 mm	Not Qualified	33554432 bit	4.5 V	TTL COMPATIBLE I/O	e0		53.2 mm	120 ns
TC5316210BF	Toshiba	MASK ROM	COMMERCIAL	44	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		2097152 words	5		8	SMALL OUTLINE		16		1.27 mm	70 Cel	3-STATE	2MX8	2M	0 Cel	TIN LEAD	DUAL	R-PDSO-G44	5.5 V	3.1 mm	12.6 mm	Not Qualified	16777216 bit	4.5 V		e0		28.2 mm	150 ns
T6772FP	Toshiba	MASK ROM	COMMERCIAL	43	QFF	RECTANGULAR	PLASTIC/EPOXY	YES		CMOS	FLAT								FLATPACK	QFL43,.55X.8,40		MASK ROMs	1 mm	55 Cel				-10 Cel	Tin/Lead (Sn/Pb)	QUAD	R-PQFP-F43				Not Qualified	65536 bit			e0
TC531024F-12(TP1)	Toshiba	MASK ROM	COMMERCIAL	40	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		65536 words	5		16	SMALL OUTLINE				1.27 mm	70 Cel	3-STATE	64KX16	64K	0 Cel	TIN LEAD	DUAL	R-PDSO-G40	5.25 V	2.8 mm	10.7 mm	Not Qualified	1048576 bit	4.75 V		e0			120 ns
TC532000AF	Toshiba	MASK ROM	COMMERCIAL	32	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		262144 words	5		8	SMALL OUTLINE				1.27 mm	70 Cel	3-STATE	256KX8	256K	0 Cel	TIN LEAD	DUAL	R-PDSO-G32	5.5 V	2.8 mm	10.7 mm	Not Qualified	2097152 bit	4.5 V		e0		20.6 mm	150 ns
TC8890N-XXXX	Toshiba	MASK ROM	COMMERCIAL	28	SDIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE			.08 mA	16384 words	5	5	8	IN-LINE, SHRINK PITCH	SDIP28,.4		MASK ROMs	1.78 mm	70 Cel		16KX8	16K	-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28				Not Qualified	131072 bit			e0	.000003 Amp
TC538000AF	Toshiba	MASK ROM	COMMERCIAL	32	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		1048576 words	5		8	SMALL OUTLINE				1.27 mm	70 Cel	3-STATE	1MX8	1M	0 Cel	TIN LEAD	DUAL	R-PDSO-G32	5.5 V	2.8 mm	10.7 mm	Not Qualified	8388608 bit	4.5 V		e0		20.6 mm	150 ns
TC531000AP	Toshiba	MASK ROM	OTHER	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE			50 mA	131072 words	5	5	8	IN-LINE	DIP28,.6		MASK ROMs	2.54 mm	70 Cel		128KX8	128K	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28				Not Qualified	1048576 bit			e0	.00002 Amp		150 ns
TMM23256P	Toshiba	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		MOS	THROUGH-HOLE			40 mA	32768 words	5	5	8	IN-LINE	DIP28,.6		MASK ROMs	2.54 mm	70 Cel		32KX8	32K	0 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28				Not Qualified	262144 bit			e0			150 ns
TC538200P	Toshiba	MASK ROM	COMMERCIAL	42	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	60 mA	1048576 words	5	5	8	IN-LINE	DIP42,.6	16	MASK ROMs	2.54 mm	70 Cel	3-STATE	1MX8	1M	0 Cel	TIN LEAD	DUAL	R-PDIP-T42	5.5 V	4.8 mm	15.24 mm	Not Qualified	8388608 bit	4.5 V		e0	.0001 Amp	53.2 mm	200 ns
TC531000AF	Toshiba	MASK ROM	OTHER	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES		CMOS	GULL WING			50 mA	131072 words	5	5	8	SMALL OUTLINE	SOP28,.5		MASK ROMs	1.27 mm	70 Cel		128KX8	128K	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDSO-G28				Not Qualified	1048576 bit			e0	.00002 Amp		150 ns
TC5365F	Toshiba	MASK ROM	INDUSTRIAL	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES		CMOS	GULL WING			10 mA	8192 words	5	5	8	SMALL OUTLINE	SOP28,.5		MASK ROMs	1.27 mm	85 Cel		8KX8	8K	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDSO-G28				Not Qualified	65536 bit			e0	.00002 Amp		250 ns
TH6M164000A	Toshiba	MASK ROM CARD							1	CMOS		PARALLEL			4194304 words			16								4MX16	4M								Not Qualified	67108864 bit						150 ns
TC534000AP	Toshiba	MASK ROM	COMMERCIAL	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	50 mA	524288 words	5	5	8	IN-LINE	DIP32,.6		MASK ROMs	2.54 mm	70 Cel	3-STATE	512KX8	512K	0 Cel	TIN LEAD	DUAL	R-PDIP-T32	5.5 V	4.8 mm	15.24 mm	Not Qualified	4194304 bit	4.5 V		e0	.00002 Amp	42 mm	150 ns
TC534200CF	Toshiba	MASK ROM	COMMERCIAL	40	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	SMALL OUTLINE		16		1.27 mm	70 Cel	3-STATE	512KX8	512K	0 Cel		DUAL	R-PDSO-G40	5.5 V	2.8 mm	10.7 mm	Not Qualified	4194304 bit	4.5 V				25.7 mm	120 ns
TC534200F(EL)	Toshiba	MASK ROM	COMMERCIAL	40	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	SMALL OUTLINE		16		1.27 mm	70 Cel	3-STATE	512KX8	512K	0 Cel	TIN LEAD	DUAL	R-PDSO-G40	5.5 V	2.8 mm	10.7 mm	Not Qualified	4194304 bit	4.5 V		e0			150 ns
TC531024F-15(EL)	Toshiba	MASK ROM	COMMERCIAL	40	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		65536 words	5		16	SMALL OUTLINE				1.27 mm	70 Cel	3-STATE	64KX16	64K	0 Cel	TIN LEAD	DUAL	R-PDSO-G40	5.5 V	2.8 mm	10.7 mm	Not Qualified	1048576 bit	4.5 V		e0			150 ns
TC5316200CP	Toshiba	MASK ROM	COMMERCIAL	42	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		2097152 words	5		8	IN-LINE				2.54 mm	70 Cel	3-STATE	2MX8	2M	0 Cel	TIN LEAD	DUAL	R-PDIP-T42	5.5 V	4.8 mm	15.24 mm	Not Qualified	16777216 bit	4.5 V		e0		53.2 mm	120 ns
TC5316200AP	Toshiba	MASK ROM	COMMERCIAL	42	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		2097152 words	5		8	IN-LINE		16		2.54 mm	70 Cel		2MX8	2M	0 Cel	TIN LEAD	DUAL	R-PDIP-T42	5.5 V	4.8 mm	15.24 mm	Not Qualified	16777216 bit	4.5 V		e0		53.2 mm	150 ns
TC5316210BP	Toshiba	MASK ROM	COMMERCIAL	42	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		2097152 words	5		8	IN-LINE		16		2.54 mm	70 Cel	3-STATE	2MX8	2M	0 Cel	TIN LEAD	DUAL	R-PDIP-T42	5.5 V	4.8 mm	15.24 mm	Not Qualified	16777216 bit	4.5 V		e0		53.2 mm	150 ns
TC531001CP-15	Toshiba	MASK ROM	OTHER	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		131072 words	5		8	IN-LINE				2.54 mm	70 Cel	3-STATE	128KX8	128K	-40 Cel	TIN LEAD	DUAL	R-PDIP-T32	5.5 V	4.8 mm	15.24 mm	Not Qualified	1048576 bit	4.5 V		e0		42 mm	150 ns
TC532000AP	Toshiba	MASK ROM	COMMERCIAL	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		262144 words	5		8	IN-LINE				2.54 mm	70 Cel	3-STATE	256KX8	256K	0 Cel	TIN LEAD	DUAL	R-PDIP-T32	5.5 V	4.8 mm	15.24 mm	Not Qualified	2097152 bit	4.5 V		e0		42 mm	150 ns
TC538200F(EL)	Toshiba	MASK ROM	COMMERCIAL	44	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		1048576 words	5		8	SMALL OUTLINE		16		1.27 mm	70 Cel	3-STATE	1MX8	1M	0 Cel	TIN LEAD	DUAL	R-PDSO-G44	5.5 V	3.1 mm	12.6 mm	Not Qualified	8388608 bit	4.5 V		e0		28.2 mm	200 ns
TC534000F(TP1)	Toshiba	MASK ROM	INDUSTRIAL	32	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	SMALL OUTLINE				1.27 mm	85 Cel	3-STATE	512KX8	512K	-40 Cel	TIN LEAD	DUAL	R-PDSO-G32	5.5 V	2.8 mm	10.7 mm	Not Qualified	4194304 bit	4.5 V		e0		20.6 mm	250 ns
TC531024P-12	Toshiba	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	50 mA	65536 words	5	5	16	IN-LINE	DIP40,.6		MASK ROMs	2.54 mm	70 Cel	3-STATE	64KX16	64K	0 Cel	TIN LEAD	DUAL	R-PDIP-T40	5.25 V	4.8 mm	15.24 mm	Not Qualified	1048576 bit	4.75 V		e0	.00002 Amp	50.7 mm	120 ns
TC532000AP-15	Toshiba	MASK ROM	COMMERCIAL	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE			50 mA	262144 words	5	5	8	IN-LINE	DIP32,.6		MASK ROMs	2.54 mm	70 Cel		256KX8	256K	0 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T32				Not Qualified	2097152 bit			e0	.00002 Amp		150 ns
TH6M168000A	Toshiba	MASK ROM CARD							1	CMOS		PARALLEL			8388608 words			16								8MX16	8M								Not Qualified	134217728 bit						150 ns
TC531024F-15(TP2)	Toshiba	MASK ROM	COMMERCIAL	40	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		65536 words	5		16	SMALL OUTLINE				1.27 mm	70 Cel	3-STATE	64KX16	64K	0 Cel	TIN LEAD	DUAL	R-PDSO-G40	5.5 V	2.8 mm	10.7 mm	Not Qualified	1048576 bit	4.5 V		e0			150 ns
TC531024F-12(TP2)	Toshiba	MASK ROM	COMMERCIAL	40	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		65536 words	5		16	SMALL OUTLINE				1.27 mm	70 Cel	3-STATE	64KX16	64K	0 Cel	TIN LEAD	DUAL	R-PDSO-G40	5.25 V	2.8 mm	10.7 mm	Not Qualified	1048576 bit	4.75 V		e0			120 ns
TC531024F-15(TP1)	Toshiba	MASK ROM	COMMERCIAL	40	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		65536 words	5		16	SMALL OUTLINE				1.27 mm	70 Cel	3-STATE	64KX16	64K	0 Cel	TIN LEAD	DUAL	R-PDSO-G40	5.5 V	2.8 mm	10.7 mm	Not Qualified	1048576 bit	4.5 V		e0			150 ns
TC5316200AF-15	Toshiba	MASK ROM	COMMERCIAL	44	SOP	RECTANGULAR	PLASTIC/EPOXY	YES		CMOS	GULL WING			70 mA	1048576 words	5	5	16	SMALL OUTLINE	SOP44,.63	8	MASK ROMs	1.27 mm	70 Cel		1MX16	1M	0 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDSO-G44				Not Qualified	16777216 bit			e0	.0001 Amp		150 ns
TC534000F(EL)	Toshiba	MASK ROM	INDUSTRIAL	32	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	SMALL OUTLINE				1.27 mm	85 Cel	3-STATE	512KX8	512K	-40 Cel	TIN LEAD	DUAL	R-PDSO-G32	5.5 V	2.8 mm	10.7 mm	Not Qualified	4194304 bit	4.5 V		e0		20.6 mm	250 ns
TC531001CF-12	Toshiba	MASK ROM	OTHER	32	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS	50 mA	131072 words	5	5	8	SMALL OUTLINE	SOP32,.56		MASK ROMs	1.27 mm	70 Cel	3-STATE	128KX8	128K	-40 Cel	TIN LEAD	DUAL	R-PDSO-G32	5.5 V	2.8 mm	10.7 mm	Not Qualified	1048576 bit	4.5 V		e0	.0002 Amp	20.6 mm	120 ns

MASK ROM

Mask ROM, or Read-Only Memory, is a type of non-volatile computer memory that is programmed during the manufacturing process. Mask ROM is designed to permanently store data and cannot be reprogrammed after it has been manufactured.

Mask ROM is created by a process known as photolithography. This process involves using a mask, or template, to expose specific areas of a silicon wafer to ultraviolet light. The areas that are exposed to the light are then etched away, leaving behind the patterns that make up the memory cells. Once the memory cells have been created, they are permanently programmed with the data that they will store.

Mask ROM is commonly used in devices that require permanent storage of data, such as game consoles, calculators, and other electronic devices. Because the data is permanently programmed during manufacturing, mask ROM provides a reliable and secure way to store critical data, such as system settings, firmware, and other important information.

One of the advantages of using mask ROM is that it is a cost-effective way to produce large quantities of memory. Because the data is programmed during the manufacturing process, the cost per unit is relatively low compared to other types of non-volatile memory, such as EEPROM or flash memory.