Details

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BUY CY7C1021BN-12VXC https://www.utsource.net/itm/p/4355939.html
1-Mbit (64K x 16) Static RAM

Parameter	Description	Value
Device Type	8K x 9 Non-Volatile Static RAM (NVSRAM)
Package Type	32-Pin Plastic Quad Flat Pack (PQFP)
Operating Voltage (Vcc)	Supply Voltage Range	4.5V to 5.5V
Standby Current (Icc)	Current Consumption in Standby Mode	20 μA (max)
Active Current (Icc)	Current Consumption in Active Mode	15 mA (max)
Access Time (tAA)	Access Time from Address Valid to Data Valid	12 ns (max)
Data Retention Time	Time Data is Retained without Power	10 years (min)
Temperature Range	Operating Temperature Range	-40°C to +85°C
Write Cycle Time (tWC)	Minimum Write Cycle Time	12 ns (max)
Data Hold Time (tDH)	Minimum Data Hold Time	0 ns
Address Setup Time (tAS)	Minimum Address Setup Time	3 ns (min)
Data Setup Time (tDS)	Minimum Data Setup Time	3 ns (min)
Output Enable Time (tOE)	Minimum Output Enable Time	3 ns (min)
Chip Enable Time (tCE)	Minimum Chip Enable Time	3 ns (min)
Write Enable Time (tWE)	Minimum Write Enable Time	3 ns (min)
Power-down Time (tPD)	Minimum Time to Enter Power-down Mode	3 ns (min)
Power-up Time (tPU)	Minimum Time to Exit Power-down Mode	3 ns (min)
Storage Temperature	Temperature Range for Storage	-65°C to +150°C

Instructions for Use

1. Power Supply:

   • Ensure the supply voltage (Vcc) is within the specified range of 4.5V to 5.5V.
   • Connect the ground (GND) pin to a stable ground reference.

2. Addressing:

   • Apply the address signals (A0-A12) to the address pins before the address setup time (tAS).
   • Maintain the address signals stable during the access time (tAA).

3. Data Input/Output:

   • Data input should be applied to the data pins (D0-D8) before the data setup time (tDS).
   • Data output will be valid after the access time (tAA) if the output enable (OE) is active.

4. Control Signals:

   • The chip enable (CE) signal must be low to enable the device.
   • The write enable (WE) signal must be low to perform a write operation.
   • The output enable (OE) signal must be low to enable data output.

5. Power Management:

   • To enter power-down mode, set the power-down (PD) signal high.
   • To exit power-down mode, set the power-down (PD) signal low and wait for the power-up time (tPU).

6. Data Retention:

   • Data is retained for up to 10 years without power.
   • For optimal data retention, avoid exposing the device to extreme temperatures outside the storage temperature range.

7. Handling:

   • Handle the device with care to avoid damage to the pins and package.
   • Follow proper ESD (Electrostatic Discharge) precautions to prevent damage to the device.

8. Testing:

   • Before integrating the device into a system, perform basic functional tests to ensure it meets the specified parameters.

For more detailed information, refer to the datasheet provided by Cypress Semiconductor.

(For reference only)