Overview
The SN74ALS244CDWR is a non-inverting octal buffer and line driver with 3-state outputs, manufactured by Texas Instruments. This integrated circuit is part of the 74ALS series, known for its advanced low-power Schottky (ALS) logic. The device is designed to provide high-speed data transmission and buffering capabilities, making it suitable for a variety of digital systems.
The SN74ALS244CDWR operates within a supply voltage range of 4.5 V to 5.5 V and is characterized for operation from 0°C to 70°C, making it versatile for different environmental conditions. It is packaged in a 20-pin SOIC (Small Outline Integrated Circuit) package, which is surface-mountable and convenient for modern PCB designs.
Key Specifications
| Parameter | Unit | Min | Nom | Max |
|---|---|---|---|---|
| VCC (Supply Voltage) | V | 4.5 | 5 | 5.5 |
| VIH (High-level Input Voltage) | V | 2 | ||
| VIL (Low-level Input Voltage) | V | 0.8 | ||
| IOH (High-level Output Current) | mA | -12 | -15 | |
| IOL (Low-level Output Current) | mA | 12 | 24 | |
| TA (Operating Free-air Temperature) | °C | 0 | 70 | |
| tPLH (Propagation Delay Time, A to Y) | ns | 2 | 10 | |
| tPHL (Propagation Delay Time, A to Y) | ns | 3 | 10 |
Key Features
- Non-inverting Octal Buffers and Line Drivers: Each buffer has a separate 3-state control line, allowing for independent control of each output.
- 3-State Outputs: Outputs can be set to high, low, or high-impedance state, which is useful for bus-oriented systems.
- Advanced Low-Power Schottky (ALS) Logic: Offers high speed and low power consumption.
- Wide Operating Temperature Range: Characterized for operation from 0°C to 70°C.
- Surface Mount Package: Available in 20-pin SOIC package, suitable for surface mount technology.
- High Output Drive Capability: Can drive up to 24 mA low-level output current and -15 mA high-level output current.
Applications
- Bus-Oriented Systems: The 3-state outputs make this device ideal for applications where multiple devices need to share a common bus.
- High-Speed Data Transmission: Suitable for systems requiring fast data transfer rates.
- Digital Logic Circuits: Can be used in various digital logic circuits where buffering and line driving are necessary.
- Embedded Systems: Useful in embedded systems that require reliable and efficient data transmission.
Q & A
- What is the operating temperature range of the SN74ALS244CDWR?
The operating temperature range is from 0°C to 70°C.
- What is the supply voltage range for the SN74ALS244CDWR?
The supply voltage range is from 4.5 V to 5.5 V.
- What type of outputs does the SN74ALS244CDWR have?
The device has 3-state outputs, which can be set to high, low, or high-impedance state.
- How many buffers does the SN74ALS244CDWR have?
The device has eight non-inverting buffers, divided into two 4-bit elements.
- What is the package type of the SN74ALS244CDWR?
The device is packaged in a 20-pin SOIC (Small Outline Integrated Circuit) package.
- What is the maximum high-level output current of the SN74ALS244CDWR?
The maximum high-level output current is -15 mA.
- What is the maximum low-level output current of the SN74ALS244CDWR?
The maximum low-level output current is 24 mA.
- Can the SN74ALS244CDWR be used in bus-oriented systems?
- What logic family does the SN74ALS244CDWR belong to?
The device belongs to the 74ALS (Advanced Low-Power Schottky) logic family.
- What is the propagation delay time for the SN74ALS244CDWR?
The propagation delay time (tPLH and tPHL) ranges from 2 ns to 10 ns.
