사양
| 속성 | 가치 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Series | 74AC |
| Part Status | Active |
| Logic Type | Buffer, Non-Inverting |
| Number of Elements | 2 |
| Number of Bits per Element | 4 |
| Output Type | 3-State |
| Current - Output High Low | 24mA, 24mA |
| Voltage - Supply | 2V ~ 6V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
개요
Description
The SN74AC244PWR is a high-speed octal buffer/driver with three-state outputs, designed by Texas Instruments. It is part of the Advanced CMOS (AC) logic family, known for its low power consumption and high speed. The device features eight non-inverting buffers with three-state outputs, which can be individually controlled via two enable inputs, allowing for efficient data routing and isolation on a shared bus.
This IC operates with a supply voltage range of 2 to 6 volts, providing flexibility for various applications. The three-state outputs help reduce bus loading and power consumption. The device also offers balanced propagation delays, which ensure efficient signal processing. It is packaged in a TSSOP (Thin Shrink Small Outline Package) with 20 pins, making it suitable for compact circuit designs.
The SN74AC244PWR is commonly used in memory address driving, clock driving, and other applications requiring a buffer to drive bus lines or long transmission lines. Its robust design and versatility make it a popular choice in digital electronics.
This IC operates with a supply voltage range of 2 to 6 volts, providing flexibility for various applications. The three-state outputs help reduce bus loading and power consumption. The device also offers balanced propagation delays, which ensure efficient signal processing. It is packaged in a TSSOP (Thin Shrink Small Outline Package) with 20 pins, making it suitable for compact circuit designs.
The SN74AC244PWR is commonly used in memory address driving, clock driving, and other applications requiring a buffer to drive bus lines or long transmission lines. Its robust design and versatility make it a popular choice in digital electronics.
Equivalent
The SN74AC244PWR is an octal buffer/line driver with 3-state outputs. Equivalent products include:
1. 74HC244 from NXP
2. 74LS244 from Texas Instruments
3. CD74ACT244 from Texas Instruments
4. 74HCT244 from Nexperia
These equivalents may differ slightly in parameters like logic family, speed, power consumption, and voltage ratings, so it’s essential to check the datasheets for compatibility with your application.
1. 74HC244 from NXP
2. 74LS244 from Texas Instruments
3. CD74ACT244 from Texas Instruments
4. 74HCT244 from Nexperia
These equivalents may differ slightly in parameters like logic family, speed, power consumption, and voltage ratings, so it’s essential to check the datasheets for compatibility with your application.
Features
The SN74AC244PWR is an octal buffer/driver with 3-state outputs, designed for high-speed and low-power operation. It features two sets of four buffers, allowing it to handle eight lines of data. The device is characterized by its low power consumption and the ability to drive heavy loads, with a supply voltage range from 2 V to 6 V. It has high noise immunity and typically operates at frequencies up to 100 MHz.
Key features include:
- 3-state outputs, which allow for multiple devices to connect to a common bus without interference.
- Inputs accept voltages higher than the supply voltage, providing added flexibility in interfacing different logic levels.
- The outputs are capable of sinking or sourcing 24 mA, enabling the driving of LED displays and other loads.
- The device operates with low propagation delay, ensuring fast signal transmission.
- It includes a power-down feature that minimizes power consumption when the device is not active.
Overall, the SN74AC244PWR is suitable for a wide variety of buffering and driving applications in digital circuits.
Key features include:
- 3-state outputs, which allow for multiple devices to connect to a common bus without interference.
- Inputs accept voltages higher than the supply voltage, providing added flexibility in interfacing different logic levels.
- The outputs are capable of sinking or sourcing 24 mA, enabling the driving of LED displays and other loads.
- The device operates with low propagation delay, ensuring fast signal transmission.
- It includes a power-down feature that minimizes power consumption when the device is not active.
Overall, the SN74AC244PWR is suitable for a wide variety of buffering and driving applications in digital circuits.
Pinout
The SN74AC244PWR is a part of the SN74AC244 family of octal buffers and line drivers with 3-state outputs. It comes in a TSSOP (Thin Shrink Small Outline Package) with 20 pins.
Here is a concise breakdown of its pin functions:
- Input Pins (A1 to A8): These are the data input pins. The device has 8 input channels, labeled A1 through A8.
- Output Pins (Y1 to Y8): These are the data output pins corresponding to each input, labeled Y1 through Y8. The outputs can be placed in a high-impedance state using the output enable pins.
- Output Enable Pins (1OE and 2OE): These control the 3-state outputs. When OE is low, the respective outputs are enabled; when high, outputs are in a high-impedance state.
- VCC: Power supply pin.
- GND: Ground pin.
This configuration allows the SN74AC244PWR to serve as an efficient buffer/driver in digital circuits, minimizing loading on data lines and providing signal amplification.
Here is a concise breakdown of its pin functions:
- Input Pins (A1 to A8): These are the data input pins. The device has 8 input channels, labeled A1 through A8.
- Output Pins (Y1 to Y8): These are the data output pins corresponding to each input, labeled Y1 through Y8. The outputs can be placed in a high-impedance state using the output enable pins.
- Output Enable Pins (1OE and 2OE): These control the 3-state outputs. When OE is low, the respective outputs are enabled; when high, outputs are in a high-impedance state.
- VCC: Power supply pin.
- GND: Ground pin.
This configuration allows the SN74AC244PWR to serve as an efficient buffer/driver in digital circuits, minimizing loading on data lines and providing signal amplification.
Manufacturer
The SN74AC244PWR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a wide variety of electronic components and integrated circuits. Founded in 1930 and headquartered in Dallas, Texas, TI is known for its innovation in the electronics industry, offering products that range from basic building blocks like amplifiers and data converters to complex systems-on-chip (SoCs). The company plays a significant role in sectors such as industrial, automotive, personal electronics, communications equipment, and enterprise systems. TI is particularly notable for its analog and embedded processing technologies, which are used in numerous applications to improve efficiency, performance, and reliability.
Application
The SN74AC244PWR is an octal buffer/driver with 3-state outputs, commonly used in digital circuits to improve signal integrity and drive capability. Key application areas include:
1. Microcontroller and Microprocessor Systems: Used to buffer data lines and improve signal drive strength for interfacing with external peripherals.
2. Memory Systems: Facilitates data transfer between memory and processor by buffering address and data buses.
3. Data Communication: Enhances signal transmission over longer distances or through multiple layers of circuitry.
4. Bus-Oriented Architectures: Supports the driving of data on shared bus systems, preventing contention and signal degradation.
5. General Purpose Logic Level Shifting: Converts between different voltage levels to ensure compatibility between components.
1. Microcontroller and Microprocessor Systems: Used to buffer data lines and improve signal drive strength for interfacing with external peripherals.
2. Memory Systems: Facilitates data transfer between memory and processor by buffering address and data buses.
3. Data Communication: Enhances signal transmission over longer distances or through multiple layers of circuitry.
4. Bus-Oriented Architectures: Supports the driving of data on shared bus systems, preventing contention and signal degradation.
5. General Purpose Logic Level Shifting: Converts between different voltage levels to ensure compatibility between components.
Package
The SN74AC244PWR is a line driver/buffer IC from Texas Instruments, with a package type of TSSOP (Thin Shrink Small Outline Package), specifically a 20-pin TSSOP. This package is designed to provide a compact footprint while maintaining good electrical performance.
