40 MASK ROM 168

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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
M23C4000B1	STMicroelectronics	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		524288 words	5		8	IN-LINE		16		2.54 mm	70 Cel	3-STATE	512KX8	512K	0 Cel		DUAL	R-PDIP-T40	5.5 V		15.24 mm	Not Qualified	4194304 bit	4.5 V	AUTOMATIC POWER-DOWN			52.18 mm	120 ns
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
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
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
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
TC534200P-15	Toshiba	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE			60 mA	262144 words	5	5	16	IN-LINE	DIP40,.6	8	MASK ROMs	2.54 mm	70 Cel		256KX16	256K	0 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T40				Not Qualified	4194304 bit			e0	.00002 Amp		150 ns
TMP8355P	Toshiba	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		MOS	THROUGH-HOLE			180 mA	2048 words			8	IN-LINE	DIP40,.6		MASK ROMs	2.54 mm	70 Cel		2KX8	2K	0 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T40				Not Qualified	16384 bit			e0			400 ns
TC534200F(TP1)	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
TC534200F	Toshiba	MASK ROM	COMMERCIAL	40	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS	60 mA	524288 words	5	5	8	SMALL OUTLINE	SOP40,.5,30	16	MASK ROMs	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	.00002 Amp	25.7 mm	150 ns
TC534200F(TP2)	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-12(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	5.25 V	2.8 mm	10.7 mm	Not Qualified	1048576 bit	4.75 V		e0			120 ns
TC534200CP	Toshiba	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		524288 words	5		8	IN-LINE		16		2.54 mm	70 Cel	3-STATE	512KX8	512K	0 Cel		DUAL	R-PDIP-T40	5.5 V	4.8 mm	15.24 mm	Not Qualified	4194304 bit	4.5 V				50.7 mm	120 ns
TC531024P-15	Toshiba	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	45 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	5.5 V	4.8 mm	15.24 mm	Not Qualified	1048576 bit	4.5 V		e0	.00002 Amp	50.7 mm	150 ns
TC531024F-12	Toshiba	MASK ROM	COMMERCIAL	40	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS	50 mA	65536 words	5	5	16	SMALL OUTLINE	SOP40,.5,30		MASK ROMs	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	.00002 Amp	25.7 mm	120 ns
TC53H1024P-85	Toshiba	MASK ROM		40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		65536 words	5		16	IN-LINE				2.54 mm		3-STATE	64KX16	64K		TIN LEAD	DUAL	R-PDIP-T40		4.8 mm	15.24 mm	Not Qualified	1048576 bit			e0		50.7 mm	85 ns
TC534200F-15	Toshiba	MASK ROM	COMMERCIAL	40	SOP	RECTANGULAR	PLASTIC/EPOXY	YES		CMOS	GULL WING			60 mA	262144 words	5	5	16	SMALL OUTLINE	SOP40,.56	8	MASK ROMs	1.27 mm	70 Cel		256KX16	256K	0 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDSO-G40				Not Qualified	4194304 bit			e0	.00002 Amp		150 ns
TC531024F-15	Toshiba	MASK ROM	COMMERCIAL	40	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS	50 mA	65536 words	5	5	16	SMALL OUTLINE	SOP40,.5,30		MASK ROMs	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	.00002 Amp	25.7 mm	150 ns
TC53H1024AP-85	Toshiba	MASK ROM		40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE			60 mA	65536 words	5	5	16	IN-LINE	DIP40,.6		MASK ROMs	2.54 mm			64KX16	64K		Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T40				Not Qualified	1048576 bit			e0	.0001 Amp		85 ns
TC534200P	Toshiba	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	60 mA	524288 words	5	5	8	IN-LINE	DIP40,.6	16	MASK ROMs	2.54 mm	70 Cel	3-STATE	512KX8	512K	0 Cel	TIN LEAD	DUAL	R-PDIP-T40	5.5 V	4.8 mm	15.24 mm	Not Qualified	4194304 bit	4.5 V		e0	.00002 Amp	50.7 mm	150 ns
HN62442BP-10	Renesas Electronics	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		131072 words	5		16	IN-LINE				2.54 mm	70 Cel		128KX16	128K	0 Cel		DUAL	R-PDIP-T40	5.5 V	5.08 mm	15.24 mm	Not Qualified	2097152 bit	4.5 V				52.8 mm	100 ns
HN62412P-20	Renesas Electronics	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		262144 words	5		8	IN-LINE		16		2.54 mm	70 Cel		256KX8	256K	0 Cel		DUAL	R-PDIP-T40	5.5 V	5.08 mm	15.24 mm	Not Qualified	2097152 bit	4.5 V				52.8 mm	200 ns
HN62444P	Renesas Electronics	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		524288 words	5		8	IN-LINE		16		2.54 mm	70 Cel		512KX8	512K	0 Cel		DUAL	R-PDIP-T40	5.5 V	5.08 mm	15.24 mm	Not Qualified	4194304 bit	4.5 V				52.8 mm	100 ns
HN62415P-15	Renesas Electronics	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		524288 words	5		8	IN-LINE		16		2.54 mm	70 Cel		512KX8	512K	0 Cel		DUAL	R-PDIP-T40	5.5 V	5.08 mm	15.24 mm	Not Qualified	4194304 bit	4.5 V				52.8 mm	150 ns
HN62444BP-10	Renesas Electronics	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		262144 words	5		16	IN-LINE				2.54 mm	70 Cel		256KX16	256K	0 Cel		DUAL	R-PDIP-T40	5.25 V	5.08 mm	15.24 mm	Not Qualified	4194304 bit	4.75 V				52.8 mm	100 ns
HN62454NP-85	Renesas Electronics	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		524288 words	5		8	IN-LINE		16		2.54 mm	70 Cel		512KX8	512K	0 Cel		DUAL	R-PDIP-T40	5.5 V	5.08 mm	15.24 mm	Not Qualified	4194304 bit	4.5 V				52.8 mm	85 ns
HN62415P-12	Renesas Electronics	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		524288 words	5		8	IN-LINE		16		2.54 mm	70 Cel		512KX8	512K	0 Cel		DUAL	R-PDIP-T40	5.5 V	5.08 mm	15.24 mm	Not Qualified	4194304 bit	4.5 V				52.8 mm	120 ns
HN62454P-85	Renesas Electronics	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		524288 words	5		8	IN-LINE		16		2.54 mm	70 Cel		512KX8	512K	0 Cel		DUAL	R-PDIP-T40	5.5 V	5.08 mm	15.24 mm	Not Qualified	4194304 bit	4.5 V				52.8 mm	85 ns
UPD23C2000AC-1	Renesas Electronics	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE			65 mA	2097152 words			1	IN-LINE	DIP40,.6		MASK ROMs	2.54 mm	70 Cel		2MX1	2M	-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T40				Not Qualified	2097152 bit			e0			175 ns
HN62414FA-15	Renesas Electronics	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		512KX8	512K	0 Cel		DUAL	R-PDSO-G40	5.5 V	3.05 mm	10.7 mm	Not Qualified	4194304 bit	4.5 V				26 mm	150 ns
UPD23C2000C	Renesas Electronics	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE			40 mA	2097152 words			1	IN-LINE	DIP40,.6		MASK ROMs	2.54 mm	70 Cel		2MX1	2M	-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T40				Not Qualified	2097152 bit			e0			250 ns
HN62415FA-15	Renesas Electronics	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		512KX8	512K	0 Cel		DUAL	R-PDSO-G40	5.5 V	3.05 mm	10.7 mm	Not Qualified	4194304 bit	4.5 V				26 mm	150 ns
HN62444BPN-12	Renesas Electronics	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		262144 words	5		16	IN-LINE				2.54 mm	70 Cel		256KX16	256K	0 Cel		DUAL	R-PDIP-T40	5.25 V	5.08 mm	15.24 mm	Not Qualified	4194304 bit	4.75 V				52.8 mm	120 ns
UPD23C1024EC	Renesas Electronics	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		CMOS	THROUGH-HOLE			40 mA	65536 words	5	5	16	IN-LINE	DIP40,.6		MASK ROMs	2.54 mm	70 Cel		64KX16	64K	-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T40				Not Qualified	1048576 bit			e0	.0001 Amp		200 ns
HN62V454FA-20	Renesas Electronics	MASK ROM	COMMERCIAL	40	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	3.3		8	SMALL OUTLINE				1.27 mm	70 Cel		512KX8	512K	0 Cel		DUAL	R-PDSO-G40	3.6 V	3 mm	10.7 mm	Not Qualified	4194304 bit	2.7 V	CONFIGURABLE AS 256K X 16			26.1 mm	200 ns
HN62454NFA-85	Renesas Electronics	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		512KX8	512K	0 Cel		DUAL	R-PDSO-G40	5.5 V	2.8 mm	10.7 mm	Not Qualified	4194304 bit	4.5 V				26 mm	85 ns
HN62434P-15	Renesas Electronics	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		524288 words	5		8	IN-LINE				2.54 mm	70 Cel		512KX8	512K	0 Cel		DUAL	R-PDIP-T40	5.5 V	5.08 mm	15.24 mm	Not Qualified	4194304 bit	4.5 V				52.8 mm	150 ns
HN62454FA-85	Renesas Electronics	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		512KX8	512K	0 Cel		DUAL	R-PDSO-G40	5.5 V	2.8 mm	10.7 mm	Not Qualified	4194304 bit	4.5 V				26 mm	85 ns
HN62434FA-17	Renesas Electronics	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		512KX8	512K	0 Cel		DUAL	R-PDSO-G40	5.5 V	3.05 mm	10.7 mm	Not Qualified	4194304 bit	4.5 V				26 mm	170 ns
HN62434FA-12	Renesas Electronics	MASK ROM	COMMERCIAL	40	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS		524288 words	5		8	SMALL OUTLINE				1.27 mm	70 Cel		512KX8	512K	0 Cel		DUAL	R-PDSO-G40	5.5 V	2.8 mm	10.7 mm	Not Qualified	4194304 bit	4.5 V				26 mm	120 ns
HN62415FA-12	Renesas Electronics	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		512KX8	512K	0 Cel		DUAL	R-PDSO-G40	5.5 V	3.05 mm	10.7 mm	Not Qualified	4194304 bit	4.5 V				26 mm	120 ns
HN62444BP	Renesas Electronics	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		262144 words	5		16	IN-LINE				2.54 mm	70 Cel		256KX16	256K	0 Cel		DUAL	R-PDIP-T40	5.25 V	5.08 mm	15.24 mm	Not Qualified	4194304 bit	4.75 V				52.8 mm	100 ns
HN62434FA-20	Renesas Electronics	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		512KX8	512K	0 Cel		DUAL	R-PDSO-G40	5.5 V	3.05 mm	10.7 mm	Not Qualified	4194304 bit	4.5 V				26 mm	200 ns
HN62442BP	Renesas Electronics	MASK ROM	COMMERCIAL	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		131072 words	5		16	IN-LINE				2.54 mm	70 Cel		128KX16	128K	0 Cel		DUAL	R-PDIP-T40	5.5 V	5.08 mm	15.24 mm	Not Qualified	2097152 bit	4.5 V				52.8 mm	100 ns
UPD23C4001EJGZ-XXX-LJH	Renesas Electronics	MASK ROM	COMMERCIAL	40	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES		CMOS	GULL WING			35 mA	524288 words		3/5	8	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP40,.8,20		MASK ROMs	.5 mm	70 Cel		512KX8	512K	-10 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDSO-G40				Not Qualified	4194304 bit			e0	.0001 Amp		380 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.