QFP MASK ROM 70

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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	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 Standby Current	Length	Maximum Access Time
HN62428FP-20	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		1048576 words	5		8	FLATPACK		16		.8 mm	70 Cel		1MX8	1M	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	8388608 bit	4.5 V				14 mm	200 ns
HN62414FS-15	Renesas Electronics	MASK ROM	COMMERCIAL	64	QFP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK		16		1 mm	70 Cel		512KX8	512K	0 Cel		QUAD	R-PQFP-G64		5.5 V	2.9 mm	14 mm	Not Qualified	4194304 bit	4.5 V				20 mm	150 ns
HN62438FP-10	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		1048576 words	5		8	FLATPACK		16		.8 mm	70 Cel		1MX8	1M	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	8388608 bit	4.5 V				14 mm	100 ns
HN62434FP-17	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK		16		.8 mm	70 Cel		512KX8	512K	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	4194304 bit	4.5 V				14 mm	170 ns
HN62418FS-15	Renesas Electronics	MASK ROM	COMMERCIAL	64	QFP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		1048576 words	5		8	FLATPACK		16		1 mm	70 Cel		1MX8	1M	0 Cel		QUAD	R-PQFP-G64		5.5 V	2.9 mm	14 mm	Not Qualified	8388608 bit	4.5 V				20 mm	150 ns
HN62438NFP-15	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		1048576 words	5		8	FLATPACK		16		.8 mm	70 Cel		1MX8	1M	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	8388608 bit	4.5 V				14 mm	150 ns
HN62422FP	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		262144 words	5		8	FLATPACK		16		.8 mm	70 Cel		256KX8	256K	0 Cel		QUAD	S-PQFP-G44		5.25 V	3.05 mm	14 mm	Not Qualified	2097152 bit	4.75 V				14 mm	150 ns
HN62414FP-20	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK		16		.8 mm	70 Cel		512KX8	512K	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	4194304 bit	4.5 V				14 mm	200 ns
HN62414FS-20	Renesas Electronics	MASK ROM	COMMERCIAL	64	QFP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK		16		1 mm	70 Cel		512KX8	512K	0 Cel		QUAD	R-PQFP-G64		5.5 V	2.9 mm	14 mm	Not Qualified	4194304 bit	4.5 V				20 mm	200 ns
HN62W428FP	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		1048576 words	5		8	FLATPACK		16		.8 mm	70 Cel		1MX8	1M	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	8388608 bit	3 V				14 mm	300 ns
HN62412FP	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		262144 words	5		8	FLATPACK		16		.8 mm	70 Cel		256KX8	256K	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	2097152 bit	4.5 V				14 mm	200 ns
HN62418FP-15	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		1048576 words	5		8	FLATPACK		16		.8 mm	70 Cel		1MX8	1M	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	8388608 bit	4.5 V				14 mm	150 ns
HN62422FP-15	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		262144 words	5		8	FLATPACK		16		.8 mm	70 Cel		256KX8	256K	0 Cel		QUAD	S-PQFP-G44		5.25 V	3.05 mm	14 mm	Not Qualified	2097152 bit	4.75 V				14 mm	150 ns
HN62414FP-17	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK		16		.8 mm	70 Cel		512KX8	512K	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	4194304 bit	4.5 V				14 mm	170 ns
HN62428FP-15	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		1048576 words	5		8	FLATPACK		16		.8 mm	70 Cel		1MX8	1M	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	8388608 bit	4.5 V				14 mm	150 ns
HN62412FP-20	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		262144 words	5		8	FLATPACK		16		.8 mm	70 Cel		256KX8	256K	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	2097152 bit	4.5 V				14 mm	200 ns
HN62414FS-17	Renesas Electronics	MASK ROM	COMMERCIAL	64	QFP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK		16		1 mm	70 Cel		512KX8	512K	0 Cel		QUAD	R-PQFP-G64		5.5 V	2.9 mm	14 mm	Not Qualified	4194304 bit	4.5 V				20 mm	170 ns
HN62434FP-20	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK		16		.8 mm	70 Cel		512KX8	512K	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	4194304 bit	4.5 V				14 mm	200 ns
HN62434FP-15	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK		16		.8 mm	70 Cel		512KX8	512K	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	4194304 bit	4.5 V				14 mm	150 ns
HN62414FP-15	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK		16		.8 mm	70 Cel		512KX8	512K	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	4194304 bit	4.5 V				14 mm	150 ns
HN62434FS-20	Renesas Electronics	MASK ROM	COMMERCIAL	64	QFP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK		16		1 mm	70 Cel		512KX8	512K	0 Cel		QUAD	R-PQFP-G64		5.5 V	2.9 mm	14 mm	Not Qualified	4194304 bit	4.5 V				20 mm	200 ns
HN62428FP	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		1048576 words	5		8	FLATPACK		16		.8 mm	70 Cel		1MX8	1M	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	8388608 bit	4.5 V				14 mm	200 ns
HN62418FP	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		1048576 words	5		8	FLATPACK		16		.8 mm	70 Cel		1MX8	1M	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	8388608 bit	4.5 V				14 mm	150 ns
HN62438FP-12	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		1048576 words	5		8	FLATPACK		16		.8 mm	70 Cel		1MX8	1M	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	8388608 bit	4.5 V				14 mm	120 ns
HN62444FP-10	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK		16		.8 mm	70 Cel		512KX8	512K	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	4194304 bit	4.5 V				14 mm	100 ns
UPD23C4000GF	Renesas Electronics	MASK ROM	COMMERCIAL	64	QFP	RECTANGULAR	PLASTIC/EPOXY	YES		CMOS	GULL WING			40 mA	262144 words	5	5	16	FLATPACK	QFP64,.7X.95,40	8	MASK ROMs	1 mm	70 Cel		256KX16	256K	-10 Cel	Tin/Lead (Sn/Pb)	QUAD	R-PQFP-G64					Not Qualified	4194304 bit			e0	.00001 Amp		250 ns
HN62415FP-20	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK		16		.8 mm	70 Cel		512KX8	512K	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	4194304 bit	4.5 V				14 mm	200 ns
HN62415FP-12	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK		16		.8 mm	70 Cel		512KX8	512K	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	4194304 bit	4.5 V				14 mm	120 ns
HN62434FS-17	Renesas Electronics	MASK ROM	COMMERCIAL	64	QFP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK		16		1 mm	70 Cel		512KX8	512K	0 Cel		QUAD	R-PQFP-G64		5.5 V	2.9 mm	14 mm	Not Qualified	4194304 bit	4.5 V				20 mm	170 ns
HN624017FP-17	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		2097152 words	5		8	FLATPACK		16		.8 mm	70 Cel		2MX8	2M	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	16777216 bit	4.5 V				14 mm	170 ns
HN62434FP-12	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK		16		.8 mm	70 Cel		512KX8	512K	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	4194304 bit	4.5 V				14 mm	120 ns
HN62442BFP-10	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		131072 words	5		16	FLATPACK				.8 mm	70 Cel		128KX16	128K	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	2097152 bit	4.5 V				14 mm	100 ns
HN62438NFP-12	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		1048576 words	5		8	FLATPACK		16		.8 mm	70 Cel		1MX8	1M	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	8388608 bit	4.5 V				14 mm	120 ns
HN62444FP	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK		16		.8 mm	70 Cel		512KX8	512K	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	4194304 bit	4.5 V				14 mm	100 ns
HN62434FS-15	Renesas Electronics	MASK ROM	COMMERCIAL	64	QFP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK		16		1 mm	70 Cel		512KX8	512K	0 Cel		QUAD	R-PQFP-G64		5.5 V	2.9 mm	14 mm	Not Qualified	4194304 bit	4.5 V				20 mm	150 ns
HN62415FP-15	Renesas Electronics	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK		16		.8 mm	70 Cel		512KX8	512K	0 Cel		QUAD	S-PQFP-G44		5.5 V	3.05 mm	14 mm	Not Qualified	4194304 bit	4.5 V				14 mm	150 ns
KM23C16100FP-20	Samsung	MASK ROM	COMMERCIAL	64	QFP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS	100 mA	2097152 words	5	5	8	FLATPACK	QFP64,.7X.95,40	16	MASK ROMs	1 mm	70 Cel	3-STATE	2MX8	2M	0 Cel	TIN LEAD	QUAD	R-PQFP-G64		5.5 V	2.75 mm	14 mm	Not Qualified	16777216 bit	4.5 V		e0	.0001 Amp	20 mm	200 ns
KM23C8100FP1-20	Samsung	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS	50 mA	1048576 words	5	5	8	FLATPACK	QFP44,.7SQ,32	16	MASK ROMs	.8 mm	70 Cel	3-STATE	1MX8	1M	0 Cel	TIN LEAD	QUAD	S-PQFP-G44		5.5 V		14 mm	Not Qualified	8388608 bit	4.5 V		e0	.00005 Amp	14 mm	200 ns
KM23C8100FP2-15	Samsung	MASK ROM	COMMERCIAL	64	QFP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS	50 mA	1048576 words	5	5	8	FLATPACK	QFP64,.7X.95,40	16	MASK ROMs	1 mm	70 Cel	3-STATE	1MX8	1M	0 Cel	TIN LEAD	QUAD	R-PQFP-G64		5.5 V	2.75 mm	14 mm	Not Qualified	8388608 bit	4.5 V		e0	.00005 Amp	20 mm	150 ns
KM23C16000FP-15	Samsung	MASK ROM	COMMERCIAL	64	QFP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS	50 mA	2097152 words	5	5	8	FLATPACK	QFP64,.7X.95,40	16	MASK ROMs	1 mm	70 Cel	3-STATE	2MX8	2M	0 Cel	TIN LEAD	QUAD	R-PQFP-G64		5.5 V	2.75 mm	14 mm	Not Qualified	16777216 bit	4.5 V		e0	.00005 Amp	20 mm	150 ns
KM23C4100BFP-10	Samsung	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK				.8 mm	70 Cel		512KX8	512K	0 Cel		QUAD	S-PQFP-G44			1.8 mm	10 mm	Not Qualified	4194304 bit		CONFIGURABLE AS 256KX16			10 mm	100 ns
KM23C8100HFP2-15	Samsung	MASK ROM	COMMERCIAL	64	QFP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS	60 mA	1048576 words	5	5	8	FLATPACK	QFP64,.7X.95,40	16	MASK ROMs	1 mm	70 Cel	3-STATE	1MX8	1M	0 Cel	TIN LEAD	QUAD	R-PQFP-G64		5.5 V	2.75 mm	14 mm	Not Qualified	8388608 bit	4.5 V		e0	.00005 Amp	20 mm	150 ns
KM23C8100FP1-25	Samsung	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS	50 mA	1048576 words	5	5	8	FLATPACK	QFP44,.7SQ,32	16	MASK ROMs	.8 mm	70 Cel	3-STATE	1MX8	1M	0 Cel	TIN LEAD	QUAD	S-PQFP-G44		5.5 V		14 mm	Not Qualified	8388608 bit	4.5 V		e0	.00005 Amp	14 mm	250 ns
KM23C8100AFP1-20	Samsung	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS	50 mA	1048576 words	5	5	8	FLATPACK	QFP44,.7SQ,32	16	MASK ROMs	.8 mm	70 Cel	3-STATE	1MX8	1M	0 Cel	TIN LEAD	QUAD	S-PQFP-G44		5.5 V		14 mm	Not Qualified	8388608 bit	4.5 V		e0	.00005 Amp	14 mm	200 ns
KM23C4100FP3-25	Samsung	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES		CMOS	GULL WING			30 mA	262144 words	5	5	16	FLATPACK	QFP44,.7SQ,32	8	MASK ROMs	.8 mm	70 Cel		256KX16	256K	0 Cel	TIN LEAD	QUAD	S-PQFP-G44	3				Not Qualified	4194304 bit			e0	.0001 Amp		250 ns
KM23C8100AFP1-25	Samsung	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS	50 mA	1048576 words	5	5	8	FLATPACK	QFP44,.7SQ,32	16	MASK ROMs	.8 mm	70 Cel	3-STATE	1MX8	1M	0 Cel	TIN LEAD	QUAD	S-PQFP-G44		5.5 V		14 mm	Not Qualified	8388608 bit	4.5 V		e0	.00005 Amp	14 mm	250 ns
KM23C16100FP-25	Samsung	MASK ROM	COMMERCIAL	64	QFP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS	100 mA	2097152 words	5	5	8	FLATPACK	QFP64,.7X.95,40	16	MASK ROMs	1 mm	70 Cel	3-STATE	2MX8	2M	0 Cel	TIN LEAD	QUAD	R-PQFP-G64		5.5 V	2.75 mm	14 mm	Not Qualified	16777216 bit	4.5 V		e0	.0001 Amp	20 mm	250 ns
KM23C4100FP3-15	Samsung	MASK ROM	COMMERCIAL	44	QFP	SQUARE	PLASTIC/EPOXY	YES		CMOS	GULL WING			30 mA	262144 words	5	5	16	FLATPACK	QFP44,.7SQ,32	8	MASK ROMs	.8 mm	70 Cel		256KX16	256K	0 Cel	TIN LEAD	QUAD	S-PQFP-G44	3				Not Qualified	4194304 bit			e0	.0001 Amp		150 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.