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BUY 74HC541D https://www.utsource.net/itm/p/11246489.html
IC BUFFER NON-INVERT 6V 20SOIC

Below is the parameter table and instructions for the 74HC541D Octal D-Type Transparent Latch/Buffer:

74HC541D Parameter Table

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
Supply Voltage	VCC	2.0	5.0	6.0	V
Input Low Voltage	VIL	0.0	0.8	1.5	V	VCC = 4.5V to 5.5V
Input High Voltage	VIH	3.5	4.0	5.0	V	VCC = 4.5V to 5.5V
Output Low Voltage	VOL	0.0	0.1	0.4	V	IOL = -4mA, VCC = 4.5V to 5.5V
Output High Voltage	VOH	2.7	4.0	5.0	V	IOH = 4mA, VCC = 4.5V to 5.5V
Input Current (Low)	IIL	-1	-0.4	-0.1	μA	VIL = 0V, VCC = 4.5V to 5.5V
Input Current (High)	IIH	1	0.4	0.1	μA	VIH = VCC, VCC = 4.5V to 5.5V
Output Current (Low)	IOL	-25	-10	-4	mA	VOL = 0.4V, VCC = 4.5V to 5.5V
Output Current (High)	IOH	25	10	4	mA	VOH = 4.5V, VCC = 4.5V to 5.5V
Propagation Delay Time	tpd	6	10	15	ns	VCC = 4.5V to 5.5V, TA = 25°C
Power Consumption	Ptot	0.05	0.1	0.2	mW	VCC = 4.5V to 5.5V, TA = 25°C

74HC541D Instructions

1. Pin Configuration:

   • V_CC: Positive supply voltage.
   • GND: Ground.
   • OE (Output Enable): Active low enable input. When low, the outputs are enabled. When high, the outputs are in high-impedance state.
   • 1A to 8A: Input pins for the octal latch/buffer.
   • 1Y to 8Y: Output pins corresponding to the input pins.
   • 1 to 8: Latch enable inputs. When low, the corresponding output follows the input. When high, the output holds the last value.

2. Operation:

   • Transparent Mode: When the latch enable (LE) input is low, the output follows the input immediately. This mode is useful for passing signals through without latching.
   • Latched Mode: When the latch enable (LE) input is high, the output holds the last value of the input. This mode is useful for storing data.
   • Output Enable (OE): The OE pin controls whether the outputs are active or in a high-impedance state. When OE is low, the outputs are active. When OE is high, the outputs are in a high-impedance state, effectively disconnecting them from the circuit.

3. Power Supply:

   • Ensure that the supply voltage (V_CC) is within the specified range (2.0V to 6.0V) to avoid damage to the device.

4. Input and Output Levels:

   • The input and output voltage levels must be within the specified ranges to ensure proper operation. Inputs should not exceed V_CC + 0.5V or go below GND - 0.5V.

5. Handling:

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

6. Applications:

   • The 74HC541D is commonly used in digital circuits for data buffering, level shifting, and signal isolation. It is particularly useful in systems where multiple devices need to share a common bus.

By following these parameters and instructions, you can effectively use the 74HC541D in your digital designs.

(For reference only)