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SN74ACT240NS
+NomenclatureBUS DRIVER, ACT SERIES, 2-FUNC
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FabricantTexas Instruments
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Pièce fabricant #SN74ACT240NS
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Package 20-SOIC
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En stock7232
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Spécifications
| Attribut | Valeur |
| Package | 0 |
| Series | Bulk |
| Type | Active |
Présentation
Description
Key features include:
1. Configuration: The IC has two 4-bit sections, each with its own output-enable (OE) input, allowing for independent control of the connected outputs.
2. 3-State Outputs: It features 3-state outputs that can be configured as high, low, or high-impedance, making it suitable for bus-oriented applications.
3. Power Supply: Operates with a typical power supply voltage of 5V.
4. Performance: Provides high-speed operation with a typical propagation delay of around 8 ns.
5. Compatibility: It is TTL-compatible, ensuring it can interface with other TTL-based devices.
6. Package and Pin Count: Available in a 20-pin SOIC (NS) package.
This IC is commonly used in applications requiring controlled data flow, such as memory address drivers, clock drivers, or as bus interface devices in microprocessor systems.
Equivalent
1. 74ACT240 - Series by other manufacturers like ON Semiconductor or Nexperia.
2. MC74ACT240 - By ON Semiconductor.
3. CD74ACT240 - By Texas Instruments.
4. HD74ACT240 - Series by Renesas Electronics.
These equivalents offer similar functionality and pin configuration. Always verify the datasheets for compatibility in your specific application.
Features
1. High-Speed CMOS Technology: Provides fast switching speeds and low power consumption compared to traditional TTL counterparts.
2. 3-State Outputs: Allows for multiple outputs to be connected to a common bus line without conflict, reducing the need for additional components.
3. Octal Design: Features eight buffer/driver circuits in a single package, making it ideal for driving large data buses.
4. Inverting Outputs: The outputs are inverted, providing flexibility in signal control.
5. Wide Voltage Range: Operates effectively over a range of supply voltages, enhancing compatibility with various systems.
6. Low Power Consumption: Optimized for low power usage, making it suitable for battery-operated applications.
7. Glitch-Free Power-Up: Designed to prevent output glitches during power-up, ensuring reliable operation.
8. Standard Pinouts: Facilitates easy integration into existing designs without the need for extensive redesign.
These features make the SN74ACT240NS a versatile component in digital logic applications requiring efficient signal buffering and driving capabilities.
Pinout
1. Pin Count: 20 pins.
2. Key Functions:
- Inputs/Outputs: It has eight input pins (A1 to A8) and eight corresponding output pins (Y1 to Y8).
- Control Pins: Two output enable pins (OE1 and OE2) control the three-state outputs. When a particular OE pin is low, the corresponding outputs are enabled. When high, the outputs are in a high-impedance state.
- Power Supply Pins: VCC (power) and GND (ground) provide power to the IC.
- Inverting Outputs: The outputs are inverting, meaning a high logic level on an input results in a low logic level at the output, and vice versa.
This setup allows the device to drive loads while isolating the inputs, making it suitable for driving data lines or interfacing different parts of a digital system.