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SN74LS244DBR
+BOMIC BUFF NON-INVERT 5.25V 20-SSOP
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メーカーSTマイクロエレクトロニクス
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メーカー品番 #SN74LS244DBR
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在庫状況4055
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| Series | 74LS |
| Part Status | Active |
| Base Product Number | 74LS244 |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 4 |
| Output Type | 3-State |
| Current - Output High, Low | 15mA, 24mA |
| Voltage - Supply | 4.75V ~ 5.25V |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Mounting Type | Surface Mount |
| Package | 20-SSOP (0.209", 5.30mm Width) |
| Supplier Device Package | 20-SSOP |
| Packaging | Cut Tape (CT), Tape & Reel (TR) |
概要
Description
The SN74LS244DBR is a type of octal buffer/driver with 3-state outputs, designed to improve the performance and density of memory address drivers, clock drivers, and bus-oriented receivers and transmitters. Manufactured by Texas Instruments, it features two sets of buffers, each with four drivers, and operates with a low power Schottky TTL technology which ensures low power dissipation while offering high speeds. The three-state outputs allow for direct connection to a bus, minimizing the need for extra components in designs. It is typically used in applications that require temporary storage of data or buffering to drive long data lines or bus lines. The device operates from a 5V power supply and is available in a range of temperature options, making it suitable for various industrial applications. Its compact size and reliable performance make it a versatile choice in digital circuit design.
Equivalent
The SN74LS244DBR is a line driver featuring octal buffers/line drivers with 3-state outputs. Equivalent products include:
1. 74HC244
2. 74HCT244
3. 74F244
4. 74ALS244
5. NXP 74LVC244
6. ON Semiconductor MC74AC244
7. Fairchild/ON Semiconductor 74VHC244
These alternatives vary slightly in terms of speed, power consumption, and logic family but generally serve the same basic function. Always check the datasheet to confirm compatibility with your specific application.
1. 74HC244
2. 74HCT244
3. 74F244
4. 74ALS244
5. NXP 74LVC244
6. ON Semiconductor MC74AC244
7. Fairchild/ON Semiconductor 74VHC244
These alternatives vary slightly in terms of speed, power consumption, and logic family but generally serve the same basic function. Always check the datasheet to confirm compatibility with your specific application.
Features
The SN74LS244DBR is an octal buffer/driver integrated circuit with 3-state outputs. It features the following:
1. Logic Family: It belongs to the LS (Low-power Schottky) TTL family, which ensures low power consumption and fast switching speeds.
2. Functionality: It has 8 buffers with 3-state outputs, making it suitable for driving bus lines or buffering memory address registers.
3. Control Inputs: It includes two active-low output enable (OE) inputs that control the state of the outputs.
4. Voltage Supply: Operates typically at a 5V supply voltage.
5. Output Current: Capable of driving significant current, typically around 24 mA, making it ideal for interfacing with high-capacitance loads.
6. Propagation Delay: Offers fast propagation delays, typically around 11 ns, enhancing overall circuit performance.
7. Package Options: Available in different package types, including SOIC-20, for versatile application use.
8. Temperature Range: Typically operates within a temperature range of 0°C to 70°C.
These features make it suitable for a variety of digital logic applications, particularly in buffering and driving data and address buses.
1. Logic Family: It belongs to the LS (Low-power Schottky) TTL family, which ensures low power consumption and fast switching speeds.
2. Functionality: It has 8 buffers with 3-state outputs, making it suitable for driving bus lines or buffering memory address registers.
3. Control Inputs: It includes two active-low output enable (OE) inputs that control the state of the outputs.
4. Voltage Supply: Operates typically at a 5V supply voltage.
5. Output Current: Capable of driving significant current, typically around 24 mA, making it ideal for interfacing with high-capacitance loads.
6. Propagation Delay: Offers fast propagation delays, typically around 11 ns, enhancing overall circuit performance.
7. Package Options: Available in different package types, including SOIC-20, for versatile application use.
8. Temperature Range: Typically operates within a temperature range of 0°C to 70°C.
These features make it suitable for a variety of digital logic applications, particularly in buffering and driving data and address buses.
Pinout
The SN74LS244DBR is a 20-pin device. It is an octal buffer/line driver with 3-state outputs, commonly used to improve the signal integrity in digital circuits by providing buffering and driving capabilities. The device features two sets of four buffers with separate control inputs, allowing for flexible operation in different sections of a circuit.
Here is a brief overview of its functions:
- Buffers: It contains 8 line drivers/buffers which are organized into two groups of four.
- 3-State Outputs: Features three-state outputs that can be in one of the following states: high, low, or high-impedance. This allows multiple outputs to connect to a common bus.
- Enable Pins: Each group of 4 buffers/line drivers is controlled by an independent enable pin, which activates or deactivates the corresponding outputs.
- Voltage Levels: Designed to work with TTL logic levels.
This IC is typically used in applications requiring increased drive capabilities and better signal integrity, such as driving long cables or interfacing with multiple devices on a bus.
Here is a brief overview of its functions:
- Buffers: It contains 8 line drivers/buffers which are organized into two groups of four.
- 3-State Outputs: Features three-state outputs that can be in one of the following states: high, low, or high-impedance. This allows multiple outputs to connect to a common bus.
- Enable Pins: Each group of 4 buffers/line drivers is controlled by an independent enable pin, which activates or deactivates the corresponding outputs.
- Voltage Levels: Designed to work with TTL logic levels.
This IC is typically used in applications requiring increased drive capabilities and better signal integrity, such as driving long cables or interfacing with multiple devices on a bus.
Manufacturer
The SN74LS244DBR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a wide range of electronic components, including integrated circuits, processors, and analog devices. Founded in 1930 and headquartered in Dallas, Texas, TI is known for its innovation and significant contributions to various fields such as consumer electronics, automotive, industrial, and communications equipment. The company is focused on developing technologies that make electronics more affordable and efficient, and it plays a critical role in advancing digital and analog signal processing.
Application
The SN74LS244DBR is a non-inverting octal buffer/driver with 3-state outputs, primarily used in digital circuits. Its application areas include:
1. Bus Driving: It is used to drive data buses, ensuring signal integrity over long distances or through multiple circuit paths.
2. Signal Isolation: The device isolates different parts of a digital system, preventing signal interference.
3. Data Distribution: It helps in distributing data signals to multiple destinations without loading down the source.
4. Level Shifting: It can interface between circuits operating at different voltage levels.
5. Memory Addressing: Used in memory addressing applications to buffer address lines.
These attributes make it suitable for use in computing, telecommunications, and various control systems.
1. Bus Driving: It is used to drive data buses, ensuring signal integrity over long distances or through multiple circuit paths.
2. Signal Isolation: The device isolates different parts of a digital system, preventing signal interference.
3. Data Distribution: It helps in distributing data signals to multiple destinations without loading down the source.
4. Level Shifting: It can interface between circuits operating at different voltage levels.
5. Memory Addressing: Used in memory addressing applications to buffer address lines.
These attributes make it suitable for use in computing, telecommunications, and various control systems.
Package
The SN74LS244DBR is a digital buffer/driver IC from Texas Instruments, belonging to the 7400 series. The "DBR" suffix indicates it is provided in a SOIC (Small Outline Integrated Circuit) package, which is a surface-mount package type. This format is compact, making it suitable for modern electronic circuit boards with limited space.
