28 MASK ROM 209

Reset All

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	Sub-Category	Terminal Pitch	Maximum Operating Temperature	Output Characteristics	Organization	No. of Words Code	Minimum Operating Temperature	Terminal Finish	Terminal Position	JESD-30 Code	Moisture Sensitivity Level (MSL)	Maximum Supply Voltage (Vsup)	Maximum Seated Height	Width	Qualification	Memory Density	Minimum Supply Voltage (Vsup)	JESD-609 Code	Maximum Standby Current	Length	Maximum Access Time
TMM23128P	Toshiba	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		MOS	THROUGH-HOLE			80 mA	16384 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		16KX8	16K	0 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified	131072 bit		e0			200 ns
TC531000CP-15	Toshiba	MASK ROM	OTHER	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	45 mA	131072 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel	3-STATE	128KX8	128K	-40 Cel	TIN LEAD	DUAL	R-PDIP-T28		5.5 V	5.3 mm	15.24 mm	Not Qualified	1048576 bit	4.5 V	e0	.00002 Amp	37 mm	150 ns
T6684	Toshiba	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE								IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	55 Cel				-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified	131072 bit		e0
TC5365P	Toshiba	MASK ROM	INDUSTRIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE			10 mA	8192 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	85 Cel		8KX8	8K	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified	65536 bit		e0	.00002 Amp		250 ns
UPD23C1000AC	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE			40 mA	131072 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		128KX8	128K	-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified	1048576 bit		e0	.0001 Amp		200 ns
HN62331F-12	Renesas Electronics	MASK ROM	COMMERCIAL	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		131072 words	5		8	SMALL OUTLINE			1.27 mm	70 Cel		128KX8	128K	0 Cel		DUAL	R-PDSO-G28		5.5 V	2.5 mm	8.4 mm	Not Qualified	1048576 bit	4.5 V			18.3 mm	120 ns
HN62321EP-20	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		131072 words	5		8	IN-LINE			2.54 mm	70 Cel		128KX8	128K	0 Cel		DUAL	R-PDIP-T28		5.5 V	5.7 mm	15.24 mm	Not Qualified	1048576 bit	4.5 V			35.6 mm	200 ns
UPD23C64EC-1	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE			30 mA	8192 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		8KX8	8K	-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified	65536 bit		e0			150 ns
HN62321F-15	Renesas Electronics	MASK ROM	COMMERCIAL	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		131072 words	5		8	SMALL OUTLINE			1.27 mm	70 Cel		128KX8	128K	0 Cel		DUAL	R-PDSO-G28		5.5 V	2.5 mm	8.4 mm	Not Qualified	1048576 bit	4.5 V			18.3 mm	150 ns
HN62321EF-20	Renesas Electronics	MASK ROM	COMMERCIAL	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		131072 words	5		8	SMALL OUTLINE			1.27 mm	70 Cel		128KX8	128K	0 Cel		DUAL	R-PDSO-G28		5.5 V	2.5 mm	8.4 mm	Not Qualified	1048576 bit	4.5 V			18.3 mm	200 ns
HN62331P-12	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		131072 words	5		8	IN-LINE			2.54 mm	70 Cel		128KX8	128K	0 Cel		DUAL	R-PDIP-T28		5.5 V	5.7 mm	15.24 mm	Not Qualified	1048576 bit	4.5 V			35.6 mm	120 ns
HN62321EP	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		131072 words	5		8	IN-LINE			2.54 mm	70 Cel		128KX8	128K	0 Cel		DUAL	R-PDIP-T28		5.5 V	5.7 mm	15.24 mm	Not Qualified	1048576 bit	4.5 V			35.6 mm	200 ns
HN62321P-15	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		131072 words	5		8	IN-LINE			2.54 mm	70 Cel		128KX8	128K	0 Cel		DUAL	R-PDIP-T28		5.5 V	5.7 mm	15.24 mm	Not Qualified	1048576 bit	4.5 V			35.6 mm	150 ns
UPD23C64EC	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE			25 mA	8192 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		8KX8	8K	-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified	65536 bit		e0			200 ns
UPD2364EC-1	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		MOS	THROUGH-HOLE			80 mA	8192 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		8KX8	8K	-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified	65536 bit		e0			200 ns
UPD23C128EC	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE			25 mA	16384 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		16KX8	16K	-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified	131072 bit		e0			200 ns
UPD2364EC	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		MOS	THROUGH-HOLE			80 mA	8192 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		8KX8	8K	-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified	65536 bit		e0			250 ns
UPD23C1000C-1	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE			40 mA	131072 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		128KX8	128K	-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified	1048576 bit		e0			200 ns
UPD23C128EC-1	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE			30 mA	16384 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		16KX8	16K	-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified	131072 bit		e0			150 ns
UPD23C1000C	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE			40 mA	131072 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		128KX8	128K	-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified	1048576 bit		e0			250 ns
HN62321P	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		131072 words	5		8	IN-LINE			2.54 mm	70 Cel		128KX8	128K	0 Cel		DUAL	R-PDIP-T28		5.5 V	5.7 mm	15.24 mm	Not Qualified	1048576 bit	4.5 V			35.6 mm	150 ns
HN62321BF	Renesas Electronics	MASK ROM	COMMERCIAL	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		131072 words	5		8	SMALL OUTLINE			1.27 mm	70 Cel		128KX8	128K	0 Cel		DUAL	R-PDSO-G28		5.5 V	2.5 mm	8.4 mm	Not Qualified	1048576 bit	4.5 V			18.3 mm	200 ns
UPD23128AC	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		MOS	THROUGH-HOLE			40 mA	16384 words			8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		16KX8	16K	-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified	131072 bit		e0			200 ns
UPD23C256EC	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE			25 mA	32768 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		32KX8	32K	-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified	262144 bit		e0			200 ns
HN62321EF	Renesas Electronics	MASK ROM	COMMERCIAL	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		131072 words	5		8	SMALL OUTLINE			1.27 mm	70 Cel		128KX8	128K	0 Cel		DUAL	R-PDSO-G28		5.5 V	2.5 mm	8.4 mm	Not Qualified	1048576 bit	4.5 V			18.3 mm	200 ns
UPD23256AC	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		MOS	THROUGH-HOLE			35 mA	32768 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		32KX8	32K	-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified	262144 bit		e0			200 ns
UPD23C1000AG	Renesas Electronics	MASK ROM	COMMERCIAL	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES		CMOS	GULL WING			40 mA	131072 words	5	5	8	SMALL OUTLINE	SOP28,.5	MASK ROMs	1.27 mm	70 Cel		128KX8	128K	-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDSO-G28					Not Qualified	1048576 bit		e0	.0001 Amp		200 ns
UPD231000C	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		MOS	THROUGH-HOLE			50 mA	131072 words			8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		128KX8	128K	0 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified	1048576 bit		e0			350 ns
UPD231000C-1	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		MOS	THROUGH-HOLE			50 mA	131072 words			8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		128KX8	128K	0 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified	1048576 bit		e0			300 ns
UPD23128EC	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		MOS	THROUGH-HOLE			90 mA	16384 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		16KX8	16K	-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified	131072 bit		e0			250 ns
UPD23C256EC-1	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE			30 mA	32768 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		32KX8	32K	-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified	262144 bit		e0			150 ns
HN62321F	Renesas Electronics	MASK ROM	COMMERCIAL	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		131072 words	5		8	SMALL OUTLINE			1.27 mm	70 Cel		128KX8	128K	0 Cel		DUAL	R-PDSO-G28		5.5 V	2.5 mm	8.4 mm	Not Qualified	1048576 bit	4.5 V			18.3 mm	150 ns
HN62321BP-20	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		131072 words	5		8	IN-LINE			2.54 mm	70 Cel		128KX8	128K	0 Cel		DUAL	R-PDIP-T28		5.5 V	5.7 mm	15.24 mm	Not Qualified	1048576 bit	4.5 V			35.6 mm	200 ns
HN62321BP	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		131072 words	5		8	IN-LINE			2.54 mm	70 Cel		128KX8	128K	0 Cel		DUAL	R-PDIP-T28		5.5 V	5.7 mm	15.24 mm	Not Qualified	1048576 bit	4.5 V			35.6 mm	200 ns
HN62321BF-20	Renesas Electronics	MASK ROM	COMMERCIAL	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		131072 words	5		8	SMALL OUTLINE			1.27 mm	70 Cel		128KX8	128K	0 Cel		DUAL	R-PDSO-G28		5.5 V	2.5 mm	8.4 mm	Not Qualified	1048576 bit	4.5 V			18.3 mm	200 ns
UPD23C1010AC	Renesas Electronics	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE			40 mA	131072 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		128KX8	128K	-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified	1048576 bit		e0	.04 Amp		200 ns
KM23128JI-20	Samsung	MASK ROM	INDUSTRIAL	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES		MOS	J BEND			75 mA	16384 words	5	5	8	CHIP CARRIER	LDCC28,.5SQ	MASK ROMs	1.27 mm	85 Cel		16KX8	16K	-40 Cel	TIN LEAD	QUAD	S-PQCC-J28	3				Not Qualified	131072 bit		e0			200 ns
KM23257SP-15	Samsung	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		MOS	THROUGH-HOLE			75 mA	32768 words			8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		32KX8	32K	0 Cel	TIN LEAD	DUAL	R-PDIP-T28	3				Not Qualified	262144 bit		e0			150 ns
KM23256SP-25	Samsung	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		MOS	THROUGH-HOLE			75 mA	32768 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		32KX8	32K	0 Cel	TIN LEAD	DUAL	R-PDIP-T28	3				Not Qualified	262144 bit		e0			250 ns
KM2365PI-25	Samsung	MASK ROM	INDUSTRIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		MOS	THROUGH-HOLE			60 mA	8192 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	85 Cel		8KX8	8K	-40 Cel	TIN LEAD	DUAL	R-PDIP-T28	3				Not Qualified	65536 bit		e0			250 ns
KM23257PI-20	Samsung	MASK ROM	INDUSTRIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		MOS	THROUGH-HOLE			75 mA	32768 words			8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	85 Cel		32KX8	32K	-40 Cel	TIN LEAD	DUAL	R-PDIP-T28	3				Not Qualified	262144 bit		e0			200 ns
KM23257SPI-15	Samsung	MASK ROM	AUTOMOTIVE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		MOS	THROUGH-HOLE			75 mA	32768 words			8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	125 Cel		32KX8	32K	-40 Cel	TIN LEAD	DUAL	R-PDIP-T28	3				Not Qualified	262144 bit		e0			150 ns
KM23256SJI-25	Samsung	MASK ROM	INDUSTRIAL	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES		MOS	J BEND			75 mA	32768 words	5	5	8	CHIP CARRIER	LDCC28,.5SQ	MASK ROMs	1.27 mm	85 Cel		32KX8	32K	-40 Cel	TIN LEAD	QUAD	S-PQCC-J28	3				Not Qualified	262144 bit		e0			250 ns
KM23256PI-25	Samsung	MASK ROM	INDUSTRIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		MOS	THROUGH-HOLE			75 mA	32768 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	85 Cel		32KX8	32K	-40 Cel	TIN LEAD	DUAL	R-PDIP-T28	3				Not Qualified	262144 bit		e0			250 ns
KM2365JI-20	Samsung	MASK ROM	INDUSTRIAL	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES		MOS	J BEND			60 mA	8192 words	5	5	8	CHIP CARRIER	LDCC28,.5SQ	MASK ROMs	1.27 mm	85 Cel		8KX8	8K	-40 Cel	TIN LEAD	QUAD	S-PQCC-J28	3				Not Qualified	65536 bit		e0			200 ns
KM23128P-25	Samsung	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		MOS	THROUGH-HOLE			75 mA	16384 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		16KX8	16K	0 Cel	TIN LEAD	DUAL	R-PDIP-T28	3				Not Qualified	131072 bit		e0			250 ns
KM23128JI-25	Samsung	MASK ROM	INDUSTRIAL	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES		MOS	J BEND			75 mA	16384 words	5	5	8	CHIP CARRIER	LDCC28,.5SQ	MASK ROMs	1.27 mm	85 Cel		16KX8	16K	-40 Cel	TIN LEAD	QUAD	S-PQCC-J28	3				Not Qualified	131072 bit		e0			250 ns
KM23C1000-25	Samsung	MASK ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE			30 mA	131072 words	5	5	8	IN-LINE	DIP28,.6	MASK ROMs	2.54 mm	70 Cel		128KX8	128K	0 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28					Not Qualified	1048576 bit		e0	.0001 Amp		250 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.