Details

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BUY AT27C1024-55JC https://www.utsource.net/itm/p/337248.html
Dual 4-Bit Binary Counters 14-SO -40 to 85

Parameter	Description	Value
Device		AT27C1024-55JC
Technology		CMOS
Density	Memory Size	1 Mbit (128K x 8)
Supply Voltage (Vcc)	Operating Range	2.7V to 3.6V
Standby Current (Icc)	Typical at Vcc = 3.0V	1 μA
Active Current (Icc)	Typical at Vcc = 3.0V, f = 50 MHz	30 mA
Access Time (tAA)	Maximum at Vcc = 3.0V, f = 50 MHz	70 ns
Write Cycle Time (tWC)	Maximum at Vcc = 3.0V	5 ms
Data Retention	Minimum	10 years
Operating Temperature (Tamb)	Industrial Range	-40°C to +85°C
Package	Type	28-pin SOIC, 28-pin TSSOP
Programming Voltage (Vpp)	Required for Programming	12.5V ± 0.5V
Programming Current (Ipp)	Maximum at Vpp = 12.5V	10 mA
Programming Time	Typical	5 ms per byte
Endurance	Write Cycles	100,000 cycles

Instructions:

1. Power Supply:

   • Ensure that the supply voltage (Vcc) is within the specified range of 2.7V to 3.6V.
   • Connect the ground (GND) pin to a stable ground reference.

2. Programming:

   • Apply the programming voltage (Vpp) of 12.5V ± 0.5V to the appropriate pin during programming.
   • The programming current (Ipp) should not exceed 10 mA.
   • Each byte typically takes 5 ms to program.

3. Data Access:

   • The access time (tAA) is 70 ns at Vcc = 3.0V and f = 50 MHz.
   • Ensure that the active current (Icc) does not exceed 30 mA during data access.

4. Standby Mode:

   • In standby mode, the current consumption (Icc) is typically 1 μA at Vcc = 3.0V.

5. Temperature Considerations:

   • Operate the device within the industrial temperature range of -40°C to +85°C.

6. Package Handling:

   • Handle the device with care to avoid static damage.
   • Use the appropriate socket or soldering method for the selected package type (28-pin SOIC or 28-pin TSSOP).

7. Data Retention:

   • The device retains data for a minimum of 10 years under normal operating conditions.

8. Endurance:

   • The device can withstand up to 100,000 write cycles before potential degradation in performance.

9. Write Protection:

   • Implement hardware or software write protection mechanisms to prevent accidental data corruption.

(For reference only)