28 OTP ROM 32

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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	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	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 Time At Peak Reflow Temperature (s)	Peak Reflow Temperature (C)	Maximum Standby Current	Length	Maximum Access Time	Programming Voltage (V)
M27C256B-12B1	STMicroelectronics	OTP ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	70 Cel	3-STATE	32KX8	32K	0 Cel	MATTE TIN	DUAL	R-PDIP-T28		5.5 V	5.08 mm	15.24 mm	Not Qualified	262144 bit	4.5 V		e3			.0001 Amp	36.83 mm	120 ns	12.75
M27C256B-15B1	STMicroelectronics	OTP ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	70 Cel	3-STATE	32KX8	32K	0 Cel	MATTE TIN	DUAL	R-PDIP-T28	3	5.5 V	5.08 mm	15.24 mm	Not Qualified	262144 bit	4.5 V		e3			.0001 Amp	36.83 mm	150 ns	12.75
M27C256B-90B1	STMicroelectronics	OTP ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	70 Cel	3-STATE	32KX8	32K	0 Cel	MATTE TIN	DUAL	R-PDIP-T28		5.5 V	5.08 mm	15.24 mm	Not Qualified	262144 bit	4.5 V		e3			.0001 Amp	36.83 mm	90 ns	12.75
CY7C243-25JC	Cypress Semiconductor	OTP ROM	COMMERCIAL	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	J BEND	PARALLEL	ASYNCHRONOUS	100 mA	4096 words	COMMON	5	5	8	CHIP CARRIER	LDCC28,.5SQ	OTP ROMs	1.27 mm	70 Cel	3-STATE	4KX8	4K	0 Cel	TIN LEAD	QUAD	S-PQCC-J28		5.5 V			Not Qualified	32768 bit	4.5 V		e0					25 ns
CY7C261-35JC	Cypress Semiconductor	OTP ROM	COMMERCIAL	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	1	CMOS	J BEND	PARALLEL	ASYNCHRONOUS	100 mA	8192 words	COMMON	5	5	8	CHIP CARRIER	LDCC28,.5SQ	OTP ROMs	1.27 mm	70 Cel	3-STATE	8KX8	8K	0 Cel	Tin/Lead (Sn/Pb)	QUAD	S-PQCC-J28		5.5 V	4.572 mm	11.5316 mm	Not Qualified	65536 bit	4.5 V	POWER SWITCHED PROM	e0			.03 Amp	11.5316 mm	35 ns
AT27C256R-12PI	Atmel	OTP ROM	INDUSTRIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	20 mA	32768 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	85 Cel	3-STATE	32KX8	32K	-40 Cel	TIN LEAD	DUAL	R-PDIP-T28	1	5.5 V	5.59 mm	15.24 mm	Not Qualified	262144 bit	4.5 V		e0			.0001 Amp	36.95 mm	120 ns	13
AT27C256R-45PI	Atmel	OTP ROM	INDUSTRIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	20 mA	32768 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	85 Cel	3-STATE	32KX8	32K	-40 Cel	TIN LEAD	DUAL	R-PDIP-T28	1	5.5 V	4.826 mm	15.24 mm	Not Qualified	262144 bit	4.5 V		e0			.0001 Amp	37.0205 mm	45 ns	13
AT27C256R-55PC	Atmel	OTP ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	20 mA	32768 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	70 Cel	3-STATE	32KX8	32K	0 Cel	TIN LEAD	DUAL	R-PDIP-T28	1	5.5 V	5.59 mm	15.24 mm	Not Qualified	262144 bit	4.5 V		e0			.0001 Amp	36.95 mm	55 ns	13
AT27C256R-70PC	Atmel	OTP ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	20 mA	32768 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	70 Cel	3-STATE	32KX8	32K	0 Cel	TIN LEAD	DUAL	R-PDIP-T28	1	5.5 V	5.59 mm	15.24 mm	Not Qualified	262144 bit	4.5 V		e0			.0001 Amp	36.95 mm	70 ns	13
AT27C256R-70PI	Atmel	OTP ROM	INDUSTRIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	20 mA	32768 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	85 Cel	3-STATE	32KX8	32K	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28	1	5.5 V	4.826 mm	15.24 mm	Not Qualified	262144 bit	4.5 V		e0	30	225	.0001 Amp	37.0205 mm	70 ns	13
AT27C512R-12PC	Atmel	OTP ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	20 mA	65536 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	70 Cel	3-STATE	64KX8	64K	0 Cel	TIN LEAD	DUAL	R-PDIP-T28	1	5.5 V	5.59 mm	15.24 mm	Not Qualified	524288 bit	4.5 V		e0			.0001 Amp	36.95 mm	120 ns
AT27C512R-12PI	Atmel	OTP ROM	INDUSTRIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	20 mA	65536 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	85 Cel	3-STATE	64KX8	64K	-40 Cel	TIN LEAD	DUAL	R-PDIP-T28		5.5 V	5.59 mm	15.24 mm	Not Qualified	524288 bit	4.5 V		e0			.0001 Amp	36.95 mm	120 ns
AT27C512R-15PC	Atmel	OTP ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	20 mA	65536 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	70 Cel	3-STATE	64KX8	64K	0 Cel	TIN LEAD	DUAL	R-PDIP-T28	1	5.5 V	5.59 mm	15.24 mm	Not Qualified	524288 bit	4.5 V		e0			.0001 Amp	36.95 mm	150 ns
AT27C512R-45PC	Atmel	OTP ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	20 mA	65536 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	70 Cel	3-STATE	64KX8	64K	0 Cel	TIN LEAD	DUAL	R-PDIP-T28	1	5.5 V	5.59 mm	15.24 mm	Not Qualified	524288 bit	4.5 V		e0			.0001 Amp	36.95 mm	45 ns
AT27C512R-45PI	Atmel	OTP ROM	INDUSTRIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	20 mA	65536 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	85 Cel	3-STATE	64KX8	64K	-40 Cel	TIN LEAD	DUAL	R-PDIP-T28	1	5.5 V	4.826 mm	15.24 mm	Not Qualified	524288 bit	4.5 V		e0			.0001 Amp	37.0205 mm	45 ns
AT27C512R-55PC	Atmel	OTP ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	20 mA	65536 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	70 Cel	3-STATE	64KX8	64K	0 Cel	TIN LEAD	DUAL	R-PDIP-T28	1	5.5 V	5.59 mm	15.24 mm	Not Qualified	524288 bit	4.5 V		e0			.0001 Amp	36.95 mm	55 ns
AT27C512R-70PC	Atmel	OTP ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	20 mA	65536 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	70 Cel	3-STATE	64KX8	64K	0 Cel	TIN LEAD	DUAL	R-PDIP-T28	1	5.5 V	5.59 mm	15.24 mm	Not Qualified	524288 bit	4.5 V		e0			.0001 Amp	36.95 mm	70 ns
AT27C512R-70PI	Atmel	OTP ROM	INDUSTRIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	20 mA	65536 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	85 Cel	3-STATE	64KX8	64K	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDIP-T28	1	5.5 V	4.826 mm	15.24 mm	Not Qualified	524288 bit	4.5 V		e0	30	225	.0001 Amp	37.0205 mm	70 ns
AT27C512R-90PC	Atmel	OTP ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	20 mA	65536 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	70 Cel	3-STATE	64KX8	64K	0 Cel	TIN LEAD	DUAL	R-PDIP-T28	1	5.5 V	5.59 mm	15.24 mm	Not Qualified	524288 bit	4.5 V		e0			.0001 Amp	36.95 mm	90 ns
AT27C512R-90PI	Atmel	OTP ROM	INDUSTRIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	20 mA	65536 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	85 Cel	3-STATE	64KX8	64K	-40 Cel	TIN LEAD	DUAL	R-PDIP-T28	1	5.5 V	5.59 mm	15.24 mm	Not Qualified	524288 bit	4.5 V		e0			.0001 Amp	36.95 mm	90 ns
AT27C512R-70RC	Atmel	OTP ROM	COMMERCIAL	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS	20 mA	65536 words	COMMON	5	5	8	SMALL OUTLINE	SOP28,.5	OTP ROMs	1.27 mm	70 Cel	3-STATE	64KX8	64K	0 Cel	TIN LEAD	DUAL	R-PDSO-G28	2	5.5 V	2.79 mm	8.74 mm	Not Qualified	524288 bit	4.5 V		e0		225	.0001 Amp	18.25 mm	70 ns
M27C512-12B1	STMicroelectronics	OTP ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	65536 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	70 Cel	3-STATE	64KX8	64K	0 Cel	TIN LEAD	DUAL	R-PDIP-T28		5.5 V	5.08 mm	15.24 mm	Not Qualified	524288 bit	4.5 V		e0			.0001 Amp	36.83 mm	120 ns
M27C512-15B1	STMicroelectronics	OTP ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	65536 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	70 Cel	3-STATE	64KX8	64K	0 Cel		DUAL	R-PDIP-T28		5.5 V	5.08 mm	15.24 mm	Not Qualified	524288 bit	4.5 V					.0001 Amp	36.83 mm	150 ns
M27C512-15B6	STMicroelectronics	OTP ROM	INDUSTRIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	65536 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	85 Cel	3-STATE	64KX8	64K	-40 Cel	TIN LEAD	DUAL	R-PDIP-T28		5.5 V	5.08 mm	15.24 mm	Not Qualified	524288 bit	4.5 V		e0			.0001 Amp	36.83 mm	150 ns
M27C512-90B1	STMicroelectronics	OTP ROM	COMMERCIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	65536 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	70 Cel	3-STATE	64KX8	64K	0 Cel	TIN LEAD	DUAL	R-PDIP-T28		5.5 V	5.08 mm	15.24 mm	Not Qualified	524288 bit	4.5 V		e0			.0001 Amp	36.83 mm	90 ns
M27C512-90B6	STMicroelectronics	OTP ROM	INDUSTRIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	65536 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	85 Cel	3-STATE	64KX8	64K	-40 Cel	MATTE TIN	DUAL	R-PDIP-T28		5.5 V	5.08 mm	15.24 mm	Not Qualified	524288 bit	4.5 V		e3			.0001 Amp	36.83 mm	90 ns
AT27LV512A-70TI	Atmel	OTP ROM	INDUSTRIAL	28	TSOP1	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS	20 mA	65536 words	COMMON	3.3	3.3/5	8	SMALL OUTLINE, THIN PROFILE	TSSOP28,.53,22	OTP ROMs	.55 mm	85 Cel	3-STATE	64KX8	64K	-40 Cel	TIN LEAD	DUAL	R-PDSO-G28	3	3.6 V	1.2 mm	8 mm	Not Qualified	524288 bit	3 V	CAN ALSO BE OPERATED AT 5V SUPPLY	e0		240	.00002 Amp	11.8 mm	70 ns
M27C256B-10B6	STMicroelectronics	OTP ROM	INDUSTRIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	85 Cel	3-STATE	32KX8	32K	-40 Cel	MATTE TIN	DUAL	R-PDIP-T28		5.5 V	5.08 mm	15.24 mm	Not Qualified	262144 bit	4.5 V		e3			.0001 Amp	36.83 mm	100 ns	12.75
M27C256B-90B6	STMicroelectronics	OTP ROM	INDUSTRIAL	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	30 mA	32768 words	COMMON	5	5	8	IN-LINE	DIP28,.6	OTP ROMs	2.54 mm	85 Cel	3-STATE	32KX8	32K	-40 Cel	MATTE TIN	DUAL	R-PDIP-T28		5.5 V	5.08 mm	15.24 mm	Not Qualified	262144 bit	4.5 V		e3			.0001 Amp	36.83 mm	90 ns	12.75
AT27C512R-70RU	Atmel	OTP ROM	INDUSTRIAL	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS	20 mA	65536 words	COMMON	5	5	8	SMALL OUTLINE	SOP28,.5	OTP ROMs	1.27 mm	85 Cel	3-STATE	64KX8	64K	-40 Cel	MATTE TIN	DUAL	R-PDSO-G28	2	5.5 V	2.79 mm	8.69 mm	Not Qualified	524288 bit	4.5 V		e3		250	.0001 Amp	18.25 mm	70 ns
AT27C512R-70TU	Atmel	OTP ROM	INDUSTRIAL	28	TSOP1	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS	20 mA	65536 words	COMMON	5	5	8	SMALL OUTLINE, THIN PROFILE	TSSOP28,.53,22	OTP ROMs	.55 mm	85 Cel	3-STATE	64KX8	64K	-40 Cel		DUAL	R-PDSO-G28		5.5 V	1.2 mm	8 mm	Not Qualified	524288 bit	4.5 V					.0001 Amp	11.8 mm	70 ns
AT27C512R-45TU	Atmel	OTP ROM	INDUSTRIAL	28	TSOP1	RECTANGULAR	PLASTIC/EPOXY	YES	1	CMOS	GULL WING	PARALLEL	ASYNCHRONOUS	20 mA	65536 words	COMMON	5	5	8	SMALL OUTLINE, THIN PROFILE	TSSOP28,.53,22	OTP ROMs	.55 mm	85 Cel	3-STATE	64KX8	64K	-40 Cel	MATTE TIN	DUAL	R-PDSO-G28	3	5.5 V	1.2 mm	8 mm	Not Qualified	524288 bit	4.5 V		e3		260	.0001 Amp	11.8 mm	45 ns

OTP ROM

OTP ROM, or One-Time Programmable Read-Only Memory, is a type of non-volatile computer memory that is programmed once and cannot be reprogrammed. OTP ROM is used to store data that needs to be permanently stored and cannot be changed or updated in the future.

OTP ROM is created using a process similar to that used to manufacture Mask ROM. However, instead of programming the memory during the manufacturing process, OTP ROM is programmed after the manufacturing process, but before it is delivered to the customer. This allows the customer to program the memory with the data that they need to store permanently.

OTP ROM is commonly used in devices such as microcontrollers, smart cards, and other electronic devices that require permanent storage of data. It is ideal for storing critical data, such as system settings, encryption keys, and other sensitive information that needs to be permanently stored and cannot be changed or updated in the future.