Details

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BUY M27C322-100F1 https://www.utsource.net/itm/p/12606505.html

Parameter	Value
Device Type	32K x 8-Bit UV-Erasable PROM
Manufacturer	Macronix
Package	28-Pin PDIP, 28-Pin PLCC
Operating Voltage (Vcc)	4.5V to 5.5V
Programming Voltage (Vpp)	12.0V to 13.0V
Data Retention	10 years (at 85掳C)
Write Cycle Time	4ms typical
Access Time	100ns maximum
Temperature Range	-40掳C to +85掳C
Programming Current	25mA typical
Erase Method	UV Light (Wavelength: 253.7nm)
Erase Time	20 minutes typical
Storage Temperature	-65掳C to +150掳C
Lead Finish	Tin Plated

Instructions for Use:

1. Power Supply:

   • Connect Vcc to the positive supply (4.5V to 5.5V).
   • Connect Vss to ground.

2. Programming:

   • Apply Vpp (12.0V to 13.0V) to the appropriate pin during programming.
   • Ensure the programming current does not exceed 25mA.

3. Addressing:

   • Use the address lines (A0-A14) to select the memory location.
   • The data lines (D0-D7) are used for reading and writing data.

4. Reading Data:

   • Apply the desired address to the address lines.
   • The data will be available on the data lines after the access time (100ns).

5. Writing Data:

   • Set the address and data lines appropriately.
   • Apply the programming voltage (Vpp) and wait for the write cycle time (4ms).

6. Erasing:

   • Expose the device to UV light (253.7nm wavelength) for 20 minutes to erase the contents.

7. Handling:

   • Handle with care to avoid damage from static electricity.
   • Store in a dry, cool environment when not in use.

8. Mounting:

   • Ensure proper alignment and soldering of the device to the PCB.
   • Follow the recommended soldering profile for the specific package type.

9. Testing:

   • Verify the device functionality by reading known data patterns after programming.
   • Use a logic analyzer or similar tool to monitor signals if necessary.

(For reference only)