Details

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BUY CY7C65640A-LFXC https://www.utsource.net/itm/p/839129.html
TetraHub⑩ High-Speed USB Hub Controller

Parameter	Description	Min	Typ	Max	Unit
Supply Voltage (VCC)	Operating supply voltage	2.7	-	3.6	V
Standby Current (ISB)	Supply current in standby mode	-	1.0	-	μA
Active Current (IOP)	Supply current in active mode	-	20	-	mA
Data Retention Time (TR)	Time data is retained in power-down mode	-	20	-	years
Access Time (tAC)	Time from address valid to data valid	-	70	-	ns
Output Enable Time (tOE)	Time from output enable to data valid	-	25	-	ns
Write Cycle Time (tWC)	Minimum time required for a complete write cycle	-	70	-	ns
Address Setup Time (tAS)	Minimum time address must be stable before CE# or OE# low	-	10	-	ns
Address Hold Time (tAH)	Minimum time address must be held after CE# or OE# low	-	5	-	ns
Chip Enable Time (tCE)	Minimum time CE# must be low for valid operation	-	20	-	ns
Output Disable Time (tOH)	Time from OE# high to outputs disabled	-	15	-	ns
Power-up Time (tPU)	Time from VCC applied to device ready	-	20	-	μs
Power-down Time (tPD)	Time from CE# high to power-down mode	-	20	-	μs
Operating Temperature Range (TA)	Ambient operating temperature range	-40	-	85	°C
Storage Temperature Range (TSTG)	Temperature range for storage	-65	-	150	°C

Instructions:

1. Power Supply:

   • Ensure the supply voltage (VCC) is within the specified range of 2.7V to 3.6V.
   • Use a stable power source to avoid voltage fluctuations that can affect device performance.

2. Standby Mode:

   • To enter standby mode, set the chip enable (CE#) pin high.
   • The standby current (ISB) is typically 1.0 μA, which helps in reducing power consumption when the device is not in use.

3. Active Mode:

   • To activate the device, set the chip enable (CE#) pin low.
   • The active current (IOP) is typically 20 mA, which is the supply current during normal operation.

4. Data Access:

   • Ensure the address setup time (tAS) and address hold time (tAH) are met to avoid data corruption.
   • The access time (tAC) is 70 ns, which is the time from when the address is valid to when the data is available on the output pins.

5. Write Operations:

   • The write cycle time (tWC) is 70 ns, which is the minimum time required for a complete write cycle.
   • Ensure the write enable (WE#) signal is properly managed to avoid data corruption.

6. Output Control:

   • The output enable (OE#) pin controls the data output.
   • The output enable time (tOE) is 25 ns, which is the time from when OE# goes low to when the data is valid.
   • The output disable time (tOH) is 15 ns, which is the time from when OE# goes high to when the outputs are disabled.

7. Temperature Considerations:

   • The operating temperature range (TA) is -40°C to 85°C.
   • The storage temperature range (TSTG) is -65°C to 150°C.

8. Power-up and Power-down:

   • The power-up time (tPU) is 20 μs, which is the time from when VCC is applied to when the device is fully operational.
   • The power-down time (tPD) is 20 μs, which is the time from when CE# is high to when the device enters power-down mode.

9. Data Retention:

   • The data retention time (TR) is 20 years, which is the time data is retained in power-down mode without power.

10. General Handling:

    • Handle the device with care to avoid electrostatic discharge (ESD) damage.
    • Follow proper soldering techniques and avoid excessive heat during assembly.

(For reference only)