Details

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BUY MC74HC240AN https://www.utsource.net/itm/p/12597408.html

Below is the parameter table and instructions for the MC74HC240AN:

MC74HC240AN Parameter Table

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
Supply Voltage	VCC	2.0	-	6.0	V
Input Low Voltage	VIL	0.3	-	1.5	V	VCC = 4.5V to 5.5V
Input High Voltage	VIH	3.5	-	5.0	V	VCC = 4.5V to 5.5V
Output Low Voltage (Sink)	VOL	0.0	0.1	0.4	V	IOL = 8 mA, VCC = 4.5V to 5.5V
Output High Voltage (Source)	VOH	2.4	4.9	5.0	V	IOH = -4 mA, VCC = 4.5V to 5.5V
Input Leakage Current	IIL	-1.0	-	1.0	渭A	VCC = 4.5V to 5.5V
Output Leakage Current	IOL	-1.0	-	1.0	渭A	VCC = 4.5V to 5.5V
Propagation Delay Time	tpd	-	9.0	22.0	ns	VCC = 4.5V to 5.5V, TA = 25掳C
Power Dissipation	PD	-	-	150	mW	Per Package
Operating Temperature Range	TA	-40	-	85	掳C
Storage Temperature Range	TSTG	-65	-	150	掳C

MC74HC240AN Instructions

1. Pin Configuration

• Pin 1 to Pin 10: A1 to A10 (Input)
• Pin 11 to Pin 20: B1 to B10 (Output)
• Pin 21: GND (Ground)
• Pin 22: V_CC (Power Supply)
• Pin 23 to Pin 32: C1 to C10 (Control)

2. Function Description

• The MC74HC240AN is a high-speed CMOS octal bus transceiver with three-state outputs.
• Each channel can be independently controlled by the corresponding control input (C1 to C10).
• When the control input is low, the corresponding output is active and follows the input.
• When the control input is high, the corresponding output is in a high-impedance state.

3. Operating Modes

• Bidirectional Mode: The device can be used to transfer data in both directions between two buses.
• Unidirectional Mode: The device can be used to transfer data from one bus to another in a single direction.

4. Power Supply

• The device operates with a supply voltage range of 2.0V to 6.0V.
• Ensure that the power supply is stable and within the specified range to avoid damage to the device.

5. Input and Output Levels

• The input and output levels are compatible with standard CMOS and TTL logic families.
• Ensure that the input signals are within the valid logic levels for proper operation.

6. Thermal Considerations

• The device has a maximum power dissipation of 150 mW per package.
• Ensure adequate heat sinking if the device is operating at or near its maximum power dissipation.

7. Storage and Handling

• Store the device in a dry environment to prevent moisture damage.
• Handle the device with care to avoid static discharge, which can damage the internal circuits.

8. Application Notes

• The MC74HC240AN is commonly used in bus interfacing, memory expansion, and data multiplexing applications.
• For best performance, use decoupling capacitors close to the power supply pins to filter out noise.

9. Schematic Example

+Vcc (22) --- [100nF] --- GND (21)
          |
          |--- [Device]
          |
          |--- [100nF] --- GND (21)

This table and instructions should provide you with the necessary information to use the MC74HC240AN effectively in your designs.

(For reference only)