Details

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BUY P8256AH https://www.utsource.net/itm/p/12607237.html

Parameter	Description	Min	Typ	Max	Unit
VCC	Supply Voltage	4.5	5.0	5.5	V
ICC	Supply Current	-	10	30	mA
fOSC	Oscillator Frequency	1.0	1.2	1.4	MHz
tW	Write Time	500	600	700	ns
tR	Read Time	200	250	300	ns
tAA	Access Time	100	125	150	ns
VOH	Output High Voltage	2.4	3.5	5.0	V
VOL	Output Low Voltage	0.0	0.4	0.5	V
IOH	Output High Current	-10	-2	-1	mA
IOL	Output Low Current	1	2	10	mA
tPD	Propagation Delay	20	25	30	ns
tPHL	Output High to Low Transition Time	10	15	20	ns
tPLH	Output Low to High Transition Time	10	15	20	ns

Instructions for Use:

1. Supply Voltage (V_CC):

   • Ensure the supply voltage is within the range of 4.5V to 5.5V.
   • A stable power supply is crucial for reliable operation.

2. Supply Current (I_CC):

   • The typical supply current is 10mA, but it can go up to 30mA under certain conditions.
   • Monitor the supply current to avoid overheating.

3. Oscillator Frequency (f_OSC):

   • The oscillator frequency should be set between 1.0MHz and 1.4MHz.
   • Use an external crystal or oscillator circuit to achieve the desired frequency.

4. Write Time (t_W):

   • The write time should be at least 500ns to ensure data is properly written.
   • Avoid writing too quickly to prevent data corruption.

5. Read Time (t_R):

   • The read time should be at least 200ns to ensure accurate data retrieval.
   • Faster reads may result in incorrect data.

6. Access Time (t_AA):

   • The access time should be at least 100ns to ensure reliable data access.
   • Faster access times may lead to data errors.

7. Output High Voltage (V_OH):

   • The output high voltage should be at least 2.4V and can go up to 5.0V.
   • Ensure the load can handle the maximum output voltage.

8. Output Low Voltage (V_OL):

   • The output low voltage should be no more than 0.5V.
   • Ensure the load can handle the minimum output voltage.

9. Output High Current (I_OH):

   • The output high current should not exceed -1mA.
   • Ensure the load does not draw more current than the device can provide.

10. Output Low Current (I_OL):

    • The output low current should not exceed 10mA.
    • Ensure the load does not draw more current than the device can provide.

11. Propagation Delay (t_PD):

    • The propagation delay should be at least 20ns to ensure proper signal timing.
    • Faster delays may cause timing issues.

12. Output High to Low Transition Time (t_PHL):

    • The transition time from high to low should be at least 10ns.
    • Faster transitions may cause ringing or overshoot.

13. Output Low to High Transition Time (t_PLH):

    • The transition time from low to high should be at least 10ns.
    • Faster transitions may cause ringing or overshoot.

(For reference only)