SQUARE MASK ROM 172

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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	Screening Level	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	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)	JESD-609 Code	Maximum Standby Current	Length	Maximum Access Time
HN62418TFP-15	Renesas Electronics	MASK ROM	COMMERCIAL	44	TQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		GULL WING	PARALLEL	ASYNCHRONOUS		1048576 words	5		8	FLATPACK, THIN PROFILE		16		.8 mm	70 Cel	1MX8	1M	0 Cel		QUAD	S-PQFP-G44	5.5 V	1.1 mm	14 mm	Not Qualified	8388608 bit	4.5 V			14 mm	150 ns
HN62444TFP	Renesas Electronics	MASK ROM	COMMERCIAL	44	TQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK, THIN PROFILE		16		.8 mm	70 Cel	512KX8	512K	0 Cel		QUAD	S-PQFP-G44	5.5 V	1.1 mm	14 mm	Not Qualified	4194304 bit	4.5 V			14 mm	100 ns
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
HN624017TFP-17	Renesas Electronics	MASK ROM	COMMERCIAL	44	TQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		GULL WING	PARALLEL	ASYNCHRONOUS		2097152 words	5		8	FLATPACK, THIN PROFILE		16		.8 mm	70 Cel	2MX8	2M	0 Cel		QUAD	S-PQFP-G44	5.5 V	1.1 mm	14 mm	Not Qualified	16777216 bit	4.5 V			14 mm	170 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
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
HN62428TFP	Renesas Electronics	MASK ROM	COMMERCIAL	44	TQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		GULL WING	PARALLEL	ASYNCHRONOUS		1048576 words	5		8	FLATPACK, THIN PROFILE		16		.8 mm	70 Cel	1MX8	1M	0 Cel		QUAD	S-PQFP-G44	5.5 V	1.1 mm	14 mm	Not Qualified	8388608 bit	4.5 V			14 mm	200 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
HN62422TFP	Renesas Electronics	MASK ROM	COMMERCIAL	44	TQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		GULL WING	PARALLEL	ASYNCHRONOUS		262144 words	5		8	FLATPACK, THIN PROFILE		16		.8 mm	70 Cel	256KX8	256K	0 Cel		QUAD	S-PQFP-G44	5.25 V	1.1 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
HN62412TFP	Renesas Electronics	MASK ROM	COMMERCIAL	44	TQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		GULL WING	PARALLEL	ASYNCHRONOUS		262144 words	5		8	FLATPACK, THIN PROFILE		16		.8 mm	70 Cel	256KX8	256K	0 Cel		QUAD	S-PQFP-G44	5.5 V	1.1 mm	14 mm	Not Qualified	2097152 bit	4.5 V			14 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
HN62415TFP-15	Renesas Electronics	MASK ROM	COMMERCIAL	44	TQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK, THIN PROFILE		16		.8 mm	70 Cel	512KX8	512K	0 Cel		QUAD	S-PQFP-G44	5.5 V	1.1 mm	14 mm	Not Qualified	4194304 bit	4.5 V			14 mm	150 ns
HN62415TFP-20	Renesas Electronics	MASK ROM	COMMERCIAL	44	TQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK, THIN PROFILE		16		.8 mm	70 Cel	512KX8	512K	0 Cel		QUAD	S-PQFP-G44	5.5 V	1.1 mm	14 mm	Not Qualified	4194304 bit	4.5 V			14 mm	200 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
HN62434TFP-20	Renesas Electronics	MASK ROM	COMMERCIAL	44	TQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK, THIN PROFILE		16		.8 mm	70 Cel	512KX8	512K	0 Cel		QUAD	S-PQFP-G44	5.5 V	1.1 mm	14 mm	Not Qualified	4194304 bit	4.5 V			14 mm	200 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
HN62434TFP-17	Renesas Electronics	MASK ROM	COMMERCIAL	44	TQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK, THIN PROFILE		16		.8 mm	70 Cel	512KX8	512K	0 Cel		QUAD	S-PQFP-G44	5.5 V	1.1 mm	14 mm	Not Qualified	4194304 bit	4.5 V			14 mm	170 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
HN62444TFP-10	Renesas Electronics	MASK ROM	COMMERCIAL	44	TQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK, THIN PROFILE		16		.8 mm	70 Cel	512KX8	512K	0 Cel		QUAD	S-PQFP-G44	5.5 V	1.1 mm	14 mm	Not Qualified	4194304 bit	4.5 V			14 mm	100 ns
HN62415TFP-12	Renesas Electronics	MASK ROM	COMMERCIAL	44	TQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK, THIN PROFILE		16		.8 mm	70 Cel	512KX8	512K	0 Cel		QUAD	S-PQFP-G44	5.5 V	1.1 mm	14 mm	Not Qualified	4194304 bit	4.5 V			14 mm	120 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
HN62414TFP-15	Renesas Electronics	MASK ROM	COMMERCIAL	44	TQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK, THIN PROFILE		16		.8 mm	70 Cel	512KX8	512K	0 Cel		QUAD	S-PQFP-G44	5.5 V	1.1 mm	14 mm	Not Qualified	4194304 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
UPD23C2000G	Renesas Electronics	MASK ROM	COMMERCIAL	52	QFF	SQUARE	PLASTIC/EPOXY	YES		CMOS		FLAT			40 mA	2097152 words			1	FLATPACK	QFL52,.55SQ,40		MASK ROMs	1 mm	70 Cel	2MX1	2M	-10 Cel	Tin/Lead (Sn/Pb)	QUAD	S-PQFP-F52				Not Qualified	2097152 bit		e0			250 ns
HN62434TFP-12	Renesas Electronics	MASK ROM	COMMERCIAL	44	TQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK, THIN PROFILE		16		.8 mm	70 Cel	512KX8	512K	0 Cel		QUAD	S-PQFP-G44	5.5 V	1.1 mm	14 mm	Not Qualified	4194304 bit	4.5 V			14 mm	120 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
HN62418TFP	Renesas Electronics	MASK ROM	COMMERCIAL	44	TQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		GULL WING	PARALLEL	ASYNCHRONOUS		1048576 words	5		8	FLATPACK, THIN PROFILE		16		.8 mm	70 Cel	1MX8	1M	0 Cel		QUAD	S-PQFP-G44	5.5 V	1.1 mm	14 mm	Not Qualified	8388608 bit	4.5 V			14 mm	150 ns
HN62W428TFP	Renesas Electronics	MASK ROM	COMMERCIAL	44	TQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		GULL WING	PARALLEL	ASYNCHRONOUS		1048576 words	5		8	FLATPACK, THIN PROFILE		16		.8 mm	70 Cel	1MX8	1M	0 Cel		QUAD	S-PQFP-G44	5.5 V	1.1 mm	14 mm	Not Qualified	8388608 bit	3 V			14 mm	300 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
HN62414TFP-17	Renesas Electronics	MASK ROM	COMMERCIAL	44	TQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK, THIN PROFILE		16		.8 mm	70 Cel	512KX8	512K	0 Cel		QUAD	S-PQFP-G44	5.5 V	1.1 mm	14 mm	Not Qualified	4194304 bit	4.5 V			14 mm	170 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
HS4-83C55RH-8	Renesas Electronics	MASK ROM	MILITARY	44	QCCN	SQUARE	CERAMIC	YES		CMOS	MIL-STD-883 Class B (Modified)	NO LEAD			10.1 mA	2048 words	5	5	8	CHIP CARRIER	LCC44,.65SQ		MASK ROMs	1.27 mm	125 Cel	2KX8	2K	-55 Cel	Tin/Lead (Sn/Pb)	QUAD	S-XQCC-N44				Not Qualified	16384 bit		e0	.0001 Amp		340 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
HN62444BNCP-12	Renesas Electronics	MASK ROM	COMMERCIAL	44	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		J BEND	PARALLEL	ASYNCHRONOUS		262144 words	5		16	CHIP CARRIER				1.27 mm	70 Cel	256KX16	256K	0 Cel		QUAD	S-PQCC-J44	5.25 V	4.6 mm	16.5862 mm	Not Qualified	4194304 bit	4.75 V			16.5862 mm	120 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
HN62434TFP-15	Renesas Electronics	MASK ROM	COMMERCIAL	44	TQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK, THIN PROFILE		16		.8 mm	70 Cel	512KX8	512K	0 Cel		QUAD	S-PQFP-G44	5.5 V	1.1 mm	14 mm	Not Qualified	4194304 bit	4.5 V			14 mm	150 ns
HN62444BCPN-12	Renesas Electronics	MASK ROM	COMMERCIAL	44	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		J BEND	PARALLEL	ASYNCHRONOUS		262144 words	5		16	CHIP CARRIER				1.27 mm	70 Cel	256KX16	256K	0 Cel		QUAD	S-PQCC-J44	5.25 V	4.6 mm	16.5862 mm	Not Qualified	4194304 bit	4.75 V			16.5862 mm	120 ns
HN62444BCP	Renesas Electronics	MASK ROM	COMMERCIAL	44	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		J BEND	PARALLEL	ASYNCHRONOUS		262144 words	5		16	CHIP CARRIER				1.27 mm	70 Cel	256KX16	256K	0 Cel		QUAD	S-PQCC-J44	5.25 V	4.57 mm	16.5862 mm	Not Qualified	4194304 bit	4.75 V			16.5862 mm	100 ns
HN62414TFP-20	Renesas Electronics	MASK ROM	COMMERCIAL	44	TQFP	SQUARE	PLASTIC/EPOXY	YES	1	CMOS		GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	FLATPACK, THIN PROFILE		16		.8 mm	70 Cel	512KX8	512K	0 Cel		QUAD	S-PQFP-G44	5.5 V	1.1 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
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

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.