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SN74HC244DBR
IC BUFFER NON-INVERT 6V 20-SSOP
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規格
| Series | 74HC |
| 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 | 7.8mA, 7.8mA |
| Voltage - Supply | 2V ~ 6V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 20-SSOP (0.209", 5.30mm Width) |
| Supplier Device Package | 20-SSOP |
| Base Product Number | 74HC244 |
概述
Description
The SN74HC244DBR is a high-speed CMOS octal buffer/driver with 3-state outputs, designed for use in digital circuits. It features eight non-inverting buffer gates that provide high output drive capability while maintaining low power consumption. The device operates with a supply voltage range of 2V to 6V, making it versatile for various applications.
Key features include a wide input voltage range, low propagation delay, and excellent noise immunity. The 3-state outputs allow multiple devices to share the same bus without interference, making it ideal for applications that require data routing and signal buffering, such as in microprocessor interfacing and memory address decoding.
The package type, DBR, indicates a small footprint, surface-mount design (SOIC-20), suitable for space-constrained applications. The SN74HC244DBR is commonly used in consumer electronics, communication systems, and industrial controls, where reliable signal integrity and performance are crucial.
Key features include a wide input voltage range, low propagation delay, and excellent noise immunity. The 3-state outputs allow multiple devices to share the same bus without interference, making it ideal for applications that require data routing and signal buffering, such as in microprocessor interfacing and memory address decoding.
The package type, DBR, indicates a small footprint, surface-mount design (SOIC-20), suitable for space-constrained applications. The SN74HC244DBR is commonly used in consumer electronics, communication systems, and industrial controls, where reliable signal integrity and performance are crucial.
Features
The SN74HC244DBR is an octal buffer/driver with three-state outputs, designed for general-purpose data bus applications. Key features include:
1. High-Speed Operation: Compatible with high-speed CMOS technology, it offers fast switching times, suitable for high-frequency applications.
2. Wide Supply Voltage Range: Operates within a voltage range of 2V to 6V, making it versatile for various electronic designs.
3. Three-State Outputs: Provides control over the output state, allowing for low-power operation and bus control by enabling or disabling outputs.
4. High Output Drive Capability: Can sink/source up to 6 mA, making it effective for driving loads.
5. Low Power Consumption: Features low static and dynamic power consumption, enhancing efficiency in battery-operated devices.
6. Pin and Function Compatible: Compatible with 74HC and 74HCT logic families, facilitating design flexibility.
7. Industrial Temperature Range: Suitable for robust applications, operating reliably from -40°C to +125°C.
These features make the SN74HC244DBR ideal for interfacing between different logic levels and buffering signals in digital circuits.
1. High-Speed Operation: Compatible with high-speed CMOS technology, it offers fast switching times, suitable for high-frequency applications.
2. Wide Supply Voltage Range: Operates within a voltage range of 2V to 6V, making it versatile for various electronic designs.
3. Three-State Outputs: Provides control over the output state, allowing for low-power operation and bus control by enabling or disabling outputs.
4. High Output Drive Capability: Can sink/source up to 6 mA, making it effective for driving loads.
5. Low Power Consumption: Features low static and dynamic power consumption, enhancing efficiency in battery-operated devices.
6. Pin and Function Compatible: Compatible with 74HC and 74HCT logic families, facilitating design flexibility.
7. Industrial Temperature Range: Suitable for robust applications, operating reliably from -40°C to +125°C.
These features make the SN74HC244DBR ideal for interfacing between different logic levels and buffering signals in digital circuits.
Package
The SN74HC244DBR is packaged in a 20-pin TSSOP (Thin Shrink Small Outline Package) configuration.
Pinout
The SN74HC244DBR is an octal buffer/driver with 3-state outputs. It has a total of 20 pins.
Pin Count and Functions:
- Pins 1-8: Data input pins (A1 to A8) for the octal buffer.
- Pins 9-16: Data output pins (Y1 to Y8) corresponding to the input pins.
- Pin 10: Output enable (OE) pin, active low. When OE is low, the outputs are enabled; when high, the outputs are in a high-impedance state.
- Pin 20: GND (ground) pin.
- Pin 11: VCC pin (supply voltage), typically connected to +2V to +6V.
- Pins 17-19: Not connected (NC) in the DBR package.
This device is designed for use in various digital circuits to isolate or buffer signals, providing strong drive capability and low-power operation.
Pin Count and Functions:
- Pins 1-8: Data input pins (A1 to A8) for the octal buffer.
- Pins 9-16: Data output pins (Y1 to Y8) corresponding to the input pins.
- Pin 10: Output enable (OE) pin, active low. When OE is low, the outputs are enabled; when high, the outputs are in a high-impedance state.
- Pin 20: GND (ground) pin.
- Pin 11: VCC pin (supply voltage), typically connected to +2V to +6V.
- Pins 17-19: Not connected (NC) in the DBR package.
This device is designed for use in various digital circuits to isolate or buffer signals, providing strong drive capability and low-power operation.
Manufacturer
The SN74HC244DBR is manufactured by Texas Instruments (TI), a prominent American technology company. Texas Instruments is well-known for designing and producing a wide range of semiconductor products, including analog devices, embedded processors, and digital signal processors. Founded in 1930, the company has evolved into a major player in the semiconductor industry, serving various markets such as automotive, industrial, communications, and consumer electronics. TI's products are widely used in electronic systems and applications, making it a key contributor to technological advancements globally.
Application
The SN74HC244DBR is an octal buffer/driver designed for high-speed applications. Its primary application areas include data bus buffering, signal amplification in digital circuits, interfacing between different logic levels, and improving signal integrity in high-speed communications. It is commonly used in microcontrollers, memory interfacing, and other digital systems requiring reliable data flow and isolation.
Equivalent
The SN74HC244DBR is a high-speed hex buffer/driver. Equivalent products include:
1. 74HC244 (standard variant).
2. MC74HC244 (Motorola).
3. 74HCT244 (HCT variant for TTL compatibility).
4. 74AHC244 (higher-speed AHC variant).
Always check specifications for compatibility in specific applications.
1. 74HC244 (standard variant).
2. MC74HC244 (Motorola).
3. 74HCT244 (HCT variant for TTL compatibility).
4. 74AHC244 (higher-speed AHC variant).
Always check specifications for compatibility in specific applications.
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