Details

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BUY CAT28C256P15 https://www.utsource.net/itm/p/12609419.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	VCC	Operating	2.7	-	5.5	V
Standby Current	ISB	VCC = 5.5V	-	1	-	渭A
Active Current	IOP	VCC = 5.5V, f = 10 MHz	-	40	-	mA
Write Time	tW	VCC = 4.5V to 5.5V	5	-	-	ms
Access Time	tAA	VCC = 4.5V to 5.5V	55	-	-	ns
Data Hold Time	tDH		0	-	20	ns
Address Setup Time	tAS		20	-	-	ns
Output Enable Delay Time	tOE		0	-	20	ns
Output Disable Time	tOH		0	-	30	ns

Instructions for CAT28C256P15

1. Power Supply Connection:

   • Connect the VCC pin to a power supply within the range of 2.7V to 5.5V.
   • Ensure the GND pin is connected to ground.

2. Address and Data Lines:

   • Connect the address lines (A0-A17) to your microcontroller or memory controller.
   • Connect the data lines (DQ0-DQ7) to handle 8-bit data input/output.

3. Write Operation:

   • Apply a write enable signal (WE#) to initiate writing data.
   • Ensure that the write time (tW) is at least 5ms when operating between 4.5V and 5.5V.

4. Read Operation:

   • Apply an output enable signal (OE#) to read data from the memory.
   • Ensure that access time (tAA) is no less than 55ns for reliable data retrieval.

5. Timing Considerations:

   • Adhere to the specified timing parameters such as address setup time (tAS), data hold time (tDH), output enable delay time (tOE), and output disable time (tOH).

6. Standby Mode:

   • When not in use, ensure the device enters standby mode to reduce current consumption. The typical standby current (ISB) is around 1渭A at 5.5V.

7. Handling Precautions:

   • Avoid exceeding the maximum voltage ratings.
   • Handle with care to prevent electrostatic discharge (ESD) damage.

(For reference only)