Details

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BUY 27C4000DC-12 https://www.utsource.net/itm/p/12609953.html

Parameter	Description	Value
Device Type	UV-Erasable Programmable Read-Only Memory (EPROM)
Part Number	27C4000DC-12
Storage Capacity	Memory Size	512 K x 8 bits
Operating Voltage	Vcc Supply Voltage	5V
Access Time	Standard Access Time	120 ns
Package Type	Ceramic DIP or PLCC
Temperature Range	Operating Temperature	0掳C to +70掳C
Erase Method	Ultraviolet Light
Data Retention	Minimum Data Retention	10 years
Programming Voltage	Vpp Programming Voltage	12.5V

Instructions for Use:

1. Power Supply: Ensure the supply voltage (Vcc) is set to 5V. Avoid exceeding this voltage to prevent damage.
2. Programming: Apply 12.5V to the Vpp pin during programming operations. Follow the specific programming algorithm recommended for 27C4000 series EPROMs.
3. Erase Cycle: To erase data, expose the device window to ultraviolet light for approximately 20 minutes. Ensure the UV wavelength is within the effective range for erasure.
4. Handling Precautions: Handle with care to avoid static discharge. Use appropriate ESD protection measures.
5. Storage and Handling: Store in a cool, dry place when not in use. Protect from excessive humidity and direct sunlight.
6. Installation: Ensure proper orientation of the device during installation into the circuit board. Verify pin connections are correct to avoid shorts or misconnections.

(For reference only)