Details

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BUY SN74HC27N https://www.utsource.net/itm/p/12536107.html

Parameter	Symbol	Conditions	Min	Typical	Max	Unit
Supply Voltage	VCC	Operating	2.0	-	6.0	V
Input Low Voltage	VIL	-	0.0	-	0.8	V
Input High Voltage	VIH	-	2.0	-	VCC	V
Output Low Voltage	VOL	IOL = 4 mA	0.0	-	0.4	V
Output High Voltage	VOH	IOH = -0.4 mA	2.4	-	VCC	V
Input Leakage Current	IIL	VCC = 4.5 V to 5.5 V	-1	-	1	μA
Output Leakage Current	IOL	VCC = 4.5 V to 5.5 V	-5	-	5	μA
Propagation Delay Time	tpd	VCC = 4.5 V, TA = 25°C	-	13	-	ns
Power Dissipation	PD	Per Package	-	-	100	mW

Instructions for Use:

1. Power Supply:

   • Ensure the supply voltage (V_CC) is within the operating range of 2.0 V to 6.0 V.
   • Connect the ground (GND) pin to a stable reference potential.

2. Input Signals:

   • Apply input signals such that the low-level voltage (V_IL) does not exceed 0.8 V and the high-level voltage (V_IH) is at least 2.0 V.
   • Ensure the input leakage current (I_IL) is within ±1 μA to avoid signal degradation.

3. Output Signals:

   • The output low voltage (V_OL) should be no more than 0.4 V when sinking 4 mA.
   • The output high voltage (V_OH) should be at least 2.4 V when sourcing -0.4 mA.
   • Ensure the output leakage current (I_OL) is within ±5 μA to maintain signal integrity.

4. Propagation Delay:

   • The propagation delay time (t_pd) is typically 13 ns at V_CC = 4.5 V and T_A = 25°C. This value can vary with different supply voltages and temperatures.

5. Power Dissipation:

   • The maximum power dissipation per package is 100 mW. Ensure proper heat dissipation if the device is expected to operate near this limit.

6. Handling and Storage:

   • Handle the SN74HC27N with care to avoid electrostatic discharge (ESD) damage.
   • Store the device in a dry, ESD-protected environment to prevent damage and ensure reliability.

7. Layout Considerations:

   • Place decoupling capacitors close to the V_CC and GND pins to minimize noise and improve stability.
   • Use short and direct traces for high-speed signals to reduce parasitic inductance and capacitance.

8. Testing:

   • Before integrating the SN74HC27N into a larger circuit, test it individually to ensure it meets the specified performance parameters.

(For reference only)