Cypress Semiconductor OTP ROM 6

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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	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	Programming Voltage (V)
CY7C291A-35DMB	Cypress Semiconductor	OTP ROM	MILITARY	24	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	CMOS	38535Q/M;38534H;883B	THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	90 mA	2048 words	COMMON	5	5	8	IN-LINE	DIP24,.3	OTP ROMs	2.54 mm	125 Cel	3-STATE	2KX8	2K	-55 Cel	TIN LEAD	DUAL	R-GDIP-T24	1	5.5 V	5.08 mm	7.62 mm	Not Qualified	16384 bit	4.5 V		e0	.04 Amp	31.877 mm	35 ns	12.5
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
CY7C243-25PC	Cypress Semiconductor	OTP ROM	COMMERCIAL	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	100 mA	4096 words	COMMON	5	5	8	IN-LINE	DIP24,.3	OTP ROMs	2.54 mm	70 Cel	3-STATE	4KX8	4K	0 Cel	TIN LEAD	DUAL	R-PDIP-T24		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
CY7C225A-25DMB	Cypress Semiconductor	OTP ROM	MILITARY	24	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	1	CMOS	MIL-STD-883	THROUGH-HOLE	PARALLEL	SYNCHRONOUS	120 mA	512 words	COMMON	5	5	8	IN-LINE	DIP24,.3	EPROMs	2.54 mm	125 Cel	3-STATE	512X8	512	-55 Cel		DUAL	R-GDIP-T24		5.5 V	5.08 mm	7.62 mm	Not Qualified	4096 bit	4.5 V	BUFFERED COMMON NOT_PRESET AND NOT_CLEAR INPUTS		.12 Amp	31.877 mm	12 ns	12.5
CY7C263-40PC	Cypress Semiconductor	OTP ROM	COMMERCIAL	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	1	CMOS		THROUGH-HOLE	PARALLEL	ASYNCHRONOUS	100 mA	8192 words	COMMON	5	5	8	IN-LINE	DIP24,.3	OTP ROMs	2.54 mm	70 Cel	3-STATE	8KX8	8K	0 Cel	TIN LEAD	DUAL	R-PDIP-T24		5.5 V			Not Qualified	65536 bit	4.5 V		e0	.03 Amp		40 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.