Details

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BUY MM74HCT245WMX https://www.utsource.net/itm/p/1127820.html
Octal 3-STATE Transceiver; Package: SOIC-Wide; No of Pins: 20; Container: Tape & Reel

Parameter	Description	Min	Typ	Max	Unit
Supply Voltage (VCC)	Operating supply voltage	2.0	-	6.0	V
Output Current (IOL)	Output low current	-32	-	-	mA
Output Current (IOH)	Output high current	-	-	24	mA
Input Current (IIL)	Input low current	-1.0	-	-	μA
Input Current (IIH)	Input high current	-	-	20	μA
Propagation Delay Time (tpd)	Propagation delay time	6	-	18	ns
Power Dissipation (PD)	Maximum power dissipation	-	-	340	mW
Operating Temperature (TA)	Operating ambient temperature	-40	-	85	°C
Storage Temperature (TSTG)	Storage temperature range	-65	-	150	°C

Instructions for Use:

1. Power Supply:

   • Ensure the supply voltage (V_CC) is within the range of 2.0V to 6.0V.
   • Connect V_CC to the positive supply and GND to the ground.

2. Input and Output Connections:

   • Connect the input pins (1A to 8A) to the source signals.
   • Connect the output pins (1Y to 8Y) to the load or destination circuits.
   • Ensure that the output current does not exceed the maximum ratings (I_OL = -32mA, I_OH = 24mA).

3. Direction Control:

   • Use the direction control pin (DIR) to set the data transfer direction.
   • Set DIR to logic high (V_CC) for data transfer from A to Y.
   • Set DIR to logic low (GND) for data transfer from Y to A.

4. Enable/Disable:

   • Use the output enable pin (OE) to control the output state.
   • Set OE to logic low (GND) to enable the outputs.
   • Set OE to logic high (V_CC) to disable the outputs (high-impedance state).

5. Propagation Delay:

   • The propagation delay time (t_pd) is typically between 6ns and 18ns. Ensure your system timing accounts for this delay.

6. Temperature Considerations:

   • Operate the device within the specified operating temperature range (-40°C to 85°C).
   • Store the device within the storage temperature range (-65°C to 150°C).

7. Power Dissipation:

   • Ensure the total power dissipation (P_D) does not exceed 340mW to avoid overheating and potential damage.

8. Handling:

   • Handle the device with care to avoid static damage. Use proper ESD protection measures when handling the device.

(For reference only)