28 EPROM 1,300

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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	Input/Output Type	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	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	Programming Voltage (V)
WS57C51C-45D	STMicroelectronics	UVPROM	COMMERCIAL	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	139 mA	16384 words		5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	70 Cel	3-STATE	16KX8	16K	0 Cel	TIN LEAD	DUAL	R-GDIP-T28	5.5 V	5.72 mm	15.24 mm	Not Qualified	131072 bit	4.5 V	e0		37.215 mm	45 ns
WS57C51C-55TI	STMicroelectronics	UVPROM	INDUSTRIAL	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	133 mA	16384 words		5	5	8	IN-LINE, WINDOW	DIP28,.3	EPROMs	2.54 mm	85 Cel	3-STATE	16KX8	16K	-40 Cel	TIN LEAD	DUAL	R-GDIP-T28	5.5 V	5.08 mm	7.62 mm	Not Qualified	131072 bit	4.5 V	e0	.035 Amp	37.085 mm	55 ns
5962-87515023X	STMicroelectronics	UVPROM	MILITARY	28	WQCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	1	CMOS		NO LEAD	PARALLEL	ASYNCHRONOUS		8192 words		5		8	CHIP CARRIER, WINDOW			1.27 mm	125 Cel		8KX8	8K	-55 Cel		QUAD	S-CQCC-N28	5.5 V	3.3 mm	11.455 mm	Not Qualified	65536 bit	4.5 V			11.455 mm	55 ns
M27V512-100F6	STMicroelectronics	UVPROM	INDUSTRIAL	28	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	10 mA	65536 words	COMMON	3.3	3.3	8	IN-LINE	DIP28,.6	EPROMs	2.54 mm	85 Cel	3-STATE	64KX8	64K	-40 Cel	TIN LEAD	DUAL	R-CDIP-T28	3.6 V	5.71 mm	15.24 mm	Not Qualified	524288 bit	3 V	e0	.00001 Amp		100 ns
WS57C51C-45TMB	STMicroelectronics	UVPROM	MILITARY	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	CMOS	MIL-STD-883 Class B	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	149 mA	16384 words		5	5	8	IN-LINE, WINDOW	DIP28,.3	EPROMs	2.54 mm	125 Cel	3-STATE	16KX8	16K	-55 Cel	TIN LEAD	DUAL	R-GDIP-T28	5.5 V	5.08 mm	7.62 mm	Not Qualified	131072 bit	4.5 V	e0	.035 Amp	37.085 mm	45 ns
TTV27C256N-15C-11	STMicroelectronics	UVPROM	AUTOMOTIVE	28	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5		8	IN-LINE, WINDOW	DIP28,.6		2.54 mm	125 Cel	3-STATE	32KX8	32K	-40 Cel		DUAL	R-CDIP-T28	5.25 V	5.72 mm	15.26 mm		262144 bit	4.75 V		.0001 Amp	36.92 mm	150 ns	12.75
M87C257-90F6X	STMicroelectronics	UVPROM	INDUSTRIAL	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	85 Cel	3-STATE	32KX8	32K	-40 Cel	MATTE TIN	DUAL	R-GDIP-T28	5.5 V	5.71 mm	15.24 mm	Not Qualified	262144 bit	4.5 V	e3	.0001 Amp		90 ns
M27256-3F6	STMicroelectronics	UVPROM	INDUSTRIAL	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	NMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	100 mA	32768 words	COMMON	5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	85 Cel	3-STATE	32KX8	32K	-40 Cel	TIN LEAD	DUAL	R-GDIP-T28	5.25 V	5.71 mm	15.24 mm	Not Qualified	262144 bit	4.75 V	e0			300 ns	12.5
M87C257-20XF1	STMicroelectronics	UVPROM	COMMERCIAL	28	WDIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	70 Cel	3-STATE	32KX8	32K	0 Cel	MATTE TIN	DUAL	R-CDIP-T28	5.25 V	5.72 mm	15.24 mm	Not Qualified	262144 bit	4.75 V	e3	.0001 Amp	36.92 mm	150 ns
M87C257-45XF3X	STMicroelectronics	UVPROM	AUTOMOTIVE	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	125 Cel	3-STATE	32KX8	32K	-40 Cel	MATTE TIN	DUAL	R-GDIP-T28	5.25 V	5.71 mm	15.24 mm	Not Qualified	262144 bit	4.75 V	e3	.0001 Amp		45 ns
M87C257-10XF3	STMicroelectronics	UVPROM	AUTOMOTIVE	28	WDIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	125 Cel	3-STATE	32KX8	32K	-40 Cel	MATTE TIN	DUAL	R-CDIP-T28	5.25 V	5.72 mm	15.24 mm	Not Qualified	262144 bit	4.75 V	e3	.0001 Amp	36.92 mm	100 ns
M27V512-150F6	STMicroelectronics	UVPROM	INDUSTRIAL	28	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	10 mA	65536 words	COMMON	3.3	3.3	8	IN-LINE	DIP28,.6	EPROMs	2.54 mm	85 Cel	3-STATE	64KX8	64K	-40 Cel	TIN LEAD	DUAL	R-CDIP-T28	3.6 V	5.71 mm	15.24 mm	Not Qualified	524288 bit	3 V	e0	.00001 Amp		150 ns
TTV27C256N-70C-21	STMicroelectronics	UVPROM	INDUSTRIAL	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	50 mA	32768 words	COMMON	5		8	IN-LINE, WINDOW	DIP28,.6		2.54 mm	85 Cel	3-STATE	32KX8	32K	-40 Cel		DUAL	R-GDIP-T28	5.5 V	5.72 mm	15.24 mm		262144 bit	4.5 V		.0001 Amp	36.92 mm	70 ns	12.75
TTV27C256N-20C-3	STMicroelectronics	UVPROM	COMMERCIAL	28	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5		8	IN-LINE, WINDOW	DIP28,.6		2.54 mm	70 Cel	3-STATE	32KX8	32K	0 Cel		DUAL	R-CDIP-T28	5.5 V	5.72 mm	15.26 mm		262144 bit	4.5 V		.0001 Amp	36.92 mm	200 ns	12.75
M2764A-25F1	STMicroelectronics	UVPROM	COMMERCIAL	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	NMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	75 mA	8192 words	COMMON	5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	70 Cel	3-STATE	8KX8	8K	0 Cel	TIN LEAD	DUAL	R-GDIP-T28	5.5 V	5.71 mm	15.24 mm	Not Qualified	65536 bit	4.5 V	e0			250 ns	12.5
TTV27C256N-70C-20	STMicroelectronics	UVPROM	INDUSTRIAL	28	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5		8	IN-LINE, WINDOW	DIP28,.6		2.54 mm	85 Cel	3-STATE	32KX8	32K	-40 Cel		DUAL	R-CDIP-T28	5.5 V	5.72 mm	15.26 mm		262144 bit	4.5 V		.0001 Amp	36.92 mm	70 ns	12.75
M87C257-90XF1	STMicroelectronics	UVPROM	COMMERCIAL	28	WDIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	70 Cel	3-STATE	32KX8	32K	0 Cel	MATTE TIN	DUAL	R-CDIP-T28	5.25 V	5.72 mm	15.24 mm	Not Qualified	262144 bit	4.75 V	e3	.0001 Amp	36.92 mm	90 ns
TTV27C256N-90C-22	STMicroelectronics	UVPROM	INDUSTRIAL	28	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5		8	IN-LINE, WINDOW	DIP28,.6		2.54 mm	85 Cel	3-STATE	32KX8	32K	-40 Cel		DUAL	R-CDIP-T28	5.5 V	5.72 mm	15.26 mm		262144 bit	4.5 V		.0001 Amp	36.92 mm	90 ns	12.75
M87C257-12F7	STMicroelectronics	UVPROM	INDUSTRIAL	28	DIP	RECTANGULAR	CERAMIC	NO		CMOS		THROUGH-HOLE			30 mA	32768 words	COMMON	5	5	8	IN-LINE	DIP28,.6	EPROMs	2.54 mm	105 Cel	3-STATE	32KX8	32K	-40 Cel	MATTE TIN	DUAL	R-XDIP-T28				Not Qualified	262144 bit		e3	.0001 Amp		120 ns
M27W256-150F6TR	STMicroelectronics	UVPROM	INDUSTRIAL	28	WDIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		32768 words		3		8	IN-LINE, WINDOW			2.54 mm	85 Cel		32KX8	32K	-40 Cel		DUAL	R-PDIP-T28	3.6 V	5.72 mm	15.24 mm	Not Qualified	262144 bit	2.7 V			36.92 mm	150 ns
M87C257-70F1X	STMicroelectronics	UVPROM	COMMERCIAL	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	70 Cel	3-STATE	32KX8	32K	0 Cel	MATTE TIN	DUAL	R-GDIP-T28	5.5 V	5.71 mm	15.24 mm	Not Qualified	262144 bit	4.5 V	e3	.0001 Amp		70 ns
5962-8606306XX	STMicroelectronics	UVPROM	MILITARY	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		32768 words		5		8	IN-LINE, WINDOW			2.54 mm	125 Cel		32KX8	32K	-55 Cel	TIN LEAD	DUAL	R-GDIP-T28	5.5 V	5.588 mm	15.24 mm	Not Qualified	262144 bit	4.5 V	e0		37.1475 mm	120 ns
M27512-3F1	STMicroelectronics	UVPROM	COMMERCIAL	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	NMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	125 mA	65536 words	COMMON	5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	70 Cel	3-STATE	64KX8	64K	0 Cel	TIN LEAD	DUAL	R-GDIP-T28	5.25 V	5.71 mm	15.24 mm	Not Qualified	524288 bit	4.75 V	e0			300 ns
TTV27C256N-15C-6	STMicroelectronics	UVPROM	AUTOMOTIVE	28	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5		8	IN-LINE, WINDOW	DIP28,.6		2.54 mm	125 Cel	3-STATE	32KX8	32K	-40 Cel		DUAL	R-CDIP-T28	5.5 V	5.72 mm	15.26 mm		262144 bit	4.5 V		.0001 Amp	36.92 mm	150 ns	12.75
TTV27C256N-20C-7	STMicroelectronics	UVPROM	AUTOMOTIVE	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	50 mA	32768 words	COMMON	5		8	IN-LINE, WINDOW	DIP28,.6		2.54 mm	125 Cel	3-STATE	32KX8	32K	-40 Cel		DUAL	R-GDIP-T28	5.5 V	5.72 mm	15.24 mm		262144 bit	4.5 V		.0001 Amp	36.92 mm	200 ns	12.75
M87C257-60F7	STMicroelectronics	UVPROM	INDUSTRIAL	28	DIP	RECTANGULAR	CERAMIC	NO		CMOS		THROUGH-HOLE			30 mA	32768 words	COMMON	5	5	8	IN-LINE	DIP28,.6	EPROMs	2.54 mm	105 Cel	3-STATE	32KX8	32K	-40 Cel	MATTE TIN	DUAL	R-XDIP-T28				Not Qualified	262144 bit		e3	.0001 Amp		60 ns
5962-8606305UA	STMicroelectronics	UVPROM	MILITARY	28	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	CMOS	MIL-STD-883	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	50 mA	32768 words	COMMON	5	5	8	IN-LINE	DIP28,.3	EPROMs	2.54 mm	125 Cel	3-STATE	32KX8	32K	-55 Cel	TIN LEAD	DUAL	R-GDIP-T28	5.5 V			Not Qualified	262144 bit	4.5 V	e0	.0003 Amp		150 ns	12.5
M87C257-10XF1	STMicroelectronics	UVPROM	COMMERCIAL	28	WDIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	70 Cel	3-STATE	32KX8	32K	0 Cel	MATTE TIN	DUAL	R-CDIP-T28	5.25 V	5.72 mm	15.24 mm	Not Qualified	262144 bit	4.75 V	e3	.0001 Amp	36.92 mm	100 ns
WS57C256F-55DMB	STMicroelectronics	UVPROM	MILITARY	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	CMOS	MIL-STD-883 Class B	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	133 mA	32768 words	COMMON	5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	125 Cel	3-STATE	32KX8	32K	-55 Cel	TIN LEAD	DUAL	R-GDIP-T28	5.5 V	5.72 mm	15.24 mm	Not Qualified	262144 bit	4.5 V	e0	.0005 Amp	37.215 mm	55 ns	12.5
M87C257-80XF7X	STMicroelectronics	UVPROM	INDUSTRIAL	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	105 Cel	3-STATE	32KX8	32K	-40 Cel	MATTE TIN	DUAL	R-GDIP-T28	5.25 V	5.71 mm	15.24 mm	Not Qualified	262144 bit	4.75 V	e3	.0001 Amp		80 ns
TTV27C256N-12C-24	STMicroelectronics	UVPROM	INDUSTRIAL	28	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5		8	IN-LINE, WINDOW	DIP28,.6		2.54 mm	85 Cel	3-STATE	32KX8	32K	-40 Cel		DUAL	R-CDIP-T28	5.25 V	5.72 mm	15.26 mm		262144 bit	4.75 V		.0001 Amp	36.92 mm	120 ns	12.75
M27256-20F6	STMicroelectronics	UVPROM	INDUSTRIAL	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	NMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	100 mA	32768 words	COMMON	5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	85 Cel	3-STATE	32KX8	32K	-40 Cel	TIN LEAD	DUAL	R-GDIP-T28	5.5 V	5.71 mm	15.24 mm	Not Qualified	262144 bit	4.5 V	e0			200 ns	12.5
M27V256-100F6TR	STMicroelectronics	UVPROM	INDUSTRIAL	28	WDIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		32768 words		3.3		8	IN-LINE, WINDOW			2.54 mm	85 Cel		32KX8	32K	-40 Cel		DUAL	R-CDIP-T28	3.6 V	5.72 mm	16 mm	Not Qualified	262144 bit	3 V			36.5 mm	100 ns
M27V512-120F6	STMicroelectronics	UVPROM	INDUSTRIAL	28	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	10 mA	65536 words	COMMON	3.3	3.3	8	IN-LINE	DIP28,.6	EPROMs	2.54 mm	85 Cel	3-STATE	64KX8	64K	-40 Cel	TIN LEAD	DUAL	R-CDIP-T28	3.6 V	5.71 mm	15.24 mm	Not Qualified	524288 bit	3 V	e0	.00001 Amp		120 ns
M27V256-120F6	STMicroelectronics	UVPROM	INDUSTRIAL	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	10 mA	32768 words	COMMON	3.3	3.3	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	85 Cel	3-STATE	32KX8	32K	-40 Cel	TIN LEAD	DUAL	R-GDIP-T28	3.6 V	5.97 mm	15.24 mm	Not Qualified	262144 bit	3 V	e0	.00001 Amp	36.92 mm	120 ns	12.75
M87C257-12F6X	STMicroelectronics	UVPROM	INDUSTRIAL	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	85 Cel	3-STATE	32KX8	32K	-40 Cel	MATTE TIN	DUAL	R-GDIP-T28	5.5 V	5.71 mm	15.24 mm	Not Qualified	262144 bit	4.5 V	e3	.0001 Amp		120 ns
M2764A-20F6	STMicroelectronics	UVPROM	INDUSTRIAL	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	NMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	75 mA	8192 words	COMMON	5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	85 Cel	3-STATE	8KX8	8K	-40 Cel	TIN LEAD	DUAL	R-GDIP-T28	5.5 V	5.71 mm	15.24 mm	Not Qualified	65536 bit	4.5 V	e0			200 ns	12.5
WS57C51C-25T	STMicroelectronics	UVPROM	COMMERCIAL	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS		16384 words		5		8	IN-LINE, WINDOW			2.54 mm	70 Cel		16KX8	16K	0 Cel		DUAL	R-GDIP-T28	5.5 V	5.08 mm	7.62 mm	Not Qualified	131072 bit	4.5 V			37.085 mm	25 ns
M87C257-45F6X	STMicroelectronics	UVPROM	INDUSTRIAL	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	85 Cel	3-STATE	32KX8	32K	-40 Cel	MATTE TIN	DUAL	R-GDIP-T28	5.5 V	5.71 mm	15.24 mm	Not Qualified	262144 bit	4.5 V	e3	.0001 Amp		45 ns
M87C257-70XF1	STMicroelectronics	UVPROM	COMMERCIAL	28	WDIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	70 Cel	3-STATE	32KX8	32K	0 Cel	MATTE TIN	DUAL	R-CDIP-T28	5.25 V	5.72 mm	15.24 mm	Not Qualified	262144 bit	4.75 V	e3	.0001 Amp	36.92 mm	70 ns
TTV27C256N-20M-5	STMicroelectronics	UVPROM	COMMERCIAL	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	50 mA	32768 words	COMMON	5		8	IN-LINE, WINDOW	DIP28,.6		2.54 mm	70 Cel	3-STATE	32KX8	32K	0 Cel		DUAL	R-GDIP-T28	5.25 V	5.72 mm	15.24 mm		262144 bit	4.75 V		.0001 Amp	36.92 mm	200 ns	12.75
M87C257-12F3	STMicroelectronics	UVPROM	AUTOMOTIVE	28	WDIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	125 Cel	3-STATE	32KX8	32K	-40 Cel	MATTE TIN	DUAL	R-CDIP-T28	5.5 V	5.72 mm	15.24 mm	Not Qualified	262144 bit	4.5 V	e3	.0001 Amp	36.92 mm	120 ns
M27128A-3F6	STMicroelectronics	UVPROM	INDUSTRIAL	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	NMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	75 mA	16384 words	COMMON	5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	85 Cel	3-STATE	16KX8	16K	-40 Cel	TIN LEAD	DUAL	R-GDIP-T28	5.25 V	5.71 mm	15.24 mm	Not Qualified	131072 bit	4.75 V	e0			300 ns	12.5
TS27C256-20XCQ	STMicroelectronics		COMMERCIAL	28	DIP	RECTANGULAR	CERAMIC	NO		CMOS		THROUGH-HOLE				32768 words	COMMON	5	5	8	IN-LINE	DIP28,.6	EPROMs	2.54 mm	70 Cel	3-STATE	32KX8	32K	0 Cel	Tin/Lead (Sn/Pb)	DUAL	R-XDIP-T28				Not Qualified	262144 bit		e0			200 ns	12.5
M87C257-60F1X	STMicroelectronics	UVPROM	COMMERCIAL	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	70 Cel	3-STATE	32KX8	32K	0 Cel	MATTE TIN	DUAL	R-GDIP-T28	5.5 V	5.71 mm	15.24 mm	Not Qualified	262144 bit	4.5 V	e3	.0001 Amp		60 ns
TS27C256-17VQ	STMicroelectronics		INDUSTRIAL	28	DIP	RECTANGULAR	CERAMIC	NO		CMOS		THROUGH-HOLE				32768 words	COMMON	5	5	8	IN-LINE	DIP28,.6	EPROMs	2.54 mm	85 Cel	3-STATE	32KX8	32K	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-XDIP-T28				Not Qualified	262144 bit		e0			170 ns	12.5
M87C257-10F3X	STMicroelectronics	UVPROM	AUTOMOTIVE	28	WDIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5	5	8	IN-LINE, WINDOW	DIP28,.6	EPROMs	2.54 mm	125 Cel	3-STATE	32KX8	32K	-40 Cel	MATTE TIN	DUAL	R-GDIP-T28	5.5 V	5.71 mm	15.24 mm	Not Qualified	262144 bit	4.5 V	e3	.0001 Amp		100 ns
M2764A-15XF1	STMicroelectronics		COMMERCIAL	28	DIP	RECTANGULAR	CERAMIC	NO		MOS		THROUGH-HOLE			75 mA	8192 words	COMMON	5	5	8	IN-LINE	DIP28,.6	EPROMs	2.54 mm	70 Cel	3-STATE	8KX8	8K	0 Cel	Tin/Lead (Sn/Pb)	DUAL	R-XDIP-T28				Not Qualified	65536 bit		e0			150 ns	12.5

EPROM

EPROM, or Erasable Programmable Read-Only Memory, is a type of non-volatile computer memory that can be programmed and erased multiple times. EPROM was commonly used in computer systems and electronic devices in the 1970s and 1980s, but has largely been replaced by more advanced memory technologies.

EPROM works by storing data in a grid of memory cells that can be individually programmed and erased using ultraviolet light. Each memory cell consists of a transistor and a floating gate. To program the memory cell, a high voltage is applied to the transistor, which charges the floating gate. To erase the memory cell, ultraviolet light is applied to the chip, which removes the charge from the floating gate. The programming and erasing process can be repeated multiple times, making EPROM a reprogrammable memory technology.

EPROM has several advantages over other types of computer memory, such as ROM and RAM. EPROM can be reprogrammed multiple times, which makes it a versatile and flexible memory technology. EPROM is also non-volatile, which means that it can store data even when the power is turned off. This makes it ideal for storing critical data, such as system settings and firmware.