Details

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OTP 512KBIT 45NS 28DIP

Parameter	Description	Value	Unit
Storage Capacity	Total memory capacity	512 Kbits
Organization	Memory organization	64K x 8
Supply Voltage (VCC)	Operating voltage range	2.7 to 5.5	V
Access Time	Maximum access time	45	ns
Package Type	Type of package	Plastic DIP
Number of Pins	Number of pins	28
Operating Temperature	Temperature range for operation	-40 to +85	°C
Data Retention	Data retention period at 25°C	20	years
Programming Voltage	Voltage required for programming	12.5	V
Erase Method	Method used to erase the chip	UV light
Erase Time	Typical time required for erasing	10 to 30	minutes

Instructions for Use:

1. Power Supply: Ensure the supply voltage (VCC) is within the specified range of 2.7V to 5.5V.
2. Programming: Use a programming voltage of 12.5V for writing data. Standard read operations use the normal operating voltage.
3. Erase Operation: The device can be erased using ultraviolet (UV) light. Place the device under a UV lamp with an intensity of 10-20 mW/cm2 for 10 to 30 minutes.
4. Temperature Considerations: Operate the device within the temperature range of -40°C to +85°C to ensure reliable performance.
5. Handling Precautions: Handle the device carefully to avoid damage from electrostatic discharge (ESD). Use proper ESD protection practices.
6. Storage and Usage: Store the device in a dry environment. Once programmed, data can be retained for up to 20 years at 25°C.

Pin Configuration:

The AT27C512R-45PU has a 28-pin DIP package. Refer to the datasheet for detailed pin functions and connections.

(For reference only)