Details

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BUY M27C256B-10F1 https://www.utsource.net/itm/p/12533249.html

Parameter	Description	Value	Unit
Device Type	CMOS 32K x 8-Bit UV-Erasable PROM	-	-
Package	28-Pin Plastic DIP (PDIP)	-	-
Operating Voltage	VCC Supply Voltage	4.5 to 5.5	V
Programming Voltage	VPP Programming Voltage	12.0 ± 0.5	V
Data Retention	Data Retention Time	10	Years
Write Cycle Time	Time to Program a Byte	10	ms
Access Time	Maximum Access Time	100	ns
Operating Temperature	Industrial Temperature Range	-40 to +85	°C
Storage Temperature	Storage Temperature Range	-65 to +150	°C
Power Dissipation	Maximum Power Dissipation	500	mW
Standby Current	Standby Current (VCC = 5V)	10	μA
Active Current	Active Current (VCC = 5V, f = 5MHz)	15	mA

Instructions for Use

1. Power Supply:

   • Ensure that the V_CC supply voltage is within the specified range of 4.5V to 5.5V.
   • The V_PP programming voltage should be set to 12.0V ± 0.5V.

2. Programming:

   • To program the device, apply the V_PP voltage to the appropriate pin and follow the programming algorithm provided in the datasheet.
   • Each byte takes approximately 10 milliseconds to program.

3. Reading Data:

   • Apply the V_CC supply voltage and use the address lines to select the desired memory location.
   • The data will be available on the data lines after the access time of 100 nanoseconds.

4. Erase:

   • To erase the device, expose it to ultraviolet (UV) light for at least 20 minutes. The UV window on the package must be uncovered during this process.

5. Temperature Considerations:

   • The device is designed to operate within the industrial temperature range of -40°C to +85°C.
   • For storage, ensure the temperature does not exceed -65°C to +150°C.

6. Handling:

   • Handle the device with care to avoid damage from electrostatic discharge (ESD).
   • Store the device in a dry environment to prevent moisture damage.

7. Power Dissipation:

   • Ensure that the power dissipation does not exceed 500 milliwatts to avoid overheating.

8. Current Consumption:

   • In standby mode, the device consumes approximately 10 microamperes.
   • During active operation, the current consumption is around 15 milliamperes at 5V and 5MHz.

For detailed programming algorithms and additional specifications, refer to the full datasheet of the M27C256B-10F1.

(For reference only)