Details

---

BUY CY62256NLL-70SNXCT https://www.utsource.net/itm/p/840544.html
256K 32K x 8 Static RAM

Parameter	Description	Value
Device Type	High-Speed CMOS Static RAM	256K x 8-bit
Supply Voltage (Vcc)	Operating Supply Voltage	4.5V to 5.5V
Standby Current	Typical Standby Current at Vcc = 5.0V	1 μA
Active Current	Typical Active Current at Vcc = 5.0V	30 mA
Access Time	Access Time from Latch to Output	70 ns
Output Drive	Output Drive Capability	±16 mA
Operating Temperature	Industrial Temperature Range	-40°C to +85°C
Package Type	Leadless Chip Carrier (LCC)	32-Pin
Storage Temperature	Storage Temperature Range	-65°C to +150°C
Data Retention	Data Retention Time at Vcc = 5.0V	20 years
Ordering Code	Full Part Number	CY62256NLL-70SNXCT

Instructions for Use:

1. Power Supply:

   • Ensure the supply voltage is within the specified range (4.5V to 5.5V).
   • Use decoupling capacitors close to the power pins to minimize noise.

2. Signal Levels:

   • All input signals should be TTL compatible.
   • Outputs are CMOS compatible.

3. Timing:

   • Ensure that the access time (70 ns) is respected to avoid data corruption.
   • Use appropriate timing margins to account for variations in system performance.

4. Temperature:

   • Operate the device within the industrial temperature range (-40°C to +85°C) to ensure reliable performance.
   • Store the device in a controlled environment within the storage temperature range (-65°C to +150°C).

5. Handling:

   • Handle the device with care to avoid static discharge, which can damage the IC.
   • Follow standard ESD (Electrostatic Discharge) precautions.

6. Mounting:

   • Solder the device according to the recommended reflow profile for the 32-pin LCC package.
   • Ensure proper alignment and soldering to avoid short circuits or open connections.

7. Testing:

   • After assembly, perform functional testing to verify correct operation.
   • Use a memory tester or equivalent to check all memory locations for proper read/write functionality.

8. Data Retention:

   • The device retains data for up to 20 years when powered at 5.0V. Ensure continuous power supply for long-term data retention.

9. Documentation:

   • Refer to the datasheet for detailed electrical characteristics, timing diagrams, and mechanical dimensions.
   • Consult application notes for specific usage scenarios and design considerations.

(For reference only)