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SN74HC244DBR
+物料清單IC BUFFER NON-INVERT 6V 20-SSOP
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製造商德州儀器
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製造商部分 #SN74HC244DBR
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規格
| 屬性 | 價值 |
| 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 operates with a wide supply voltage range of 2V to 6V, making it suitable for various applications in different voltage environments. Its outputs can drive up to 15 LSTTL loads, making it a robust choice for interfacing with other logic devices. It features low power consumption, with a typical power dissipation of 1 µA, and high noise immunity due to its CMOS technology.
The device is packaged in a small-outline surface-mount package (SOP) to save board space. Its three-state outputs make it ideal for bus interfacing, where multiple devices can share a common data path.
Equivalent
1. 74HC244 by NXP
2. CD74HC244 by Texas Instruments
3. MC74HC244 by ON Semiconductor
4. TC74HC244 by Toshiba
5. MM74HC244 by Fairchild Semiconductor
These alternatives usually share similar pin configurations and electrical characteristics, but always verify the datasheet for exact compatibility and performance requirements.
Features
1. High-Speed CMOS Technology: Ensures fast operation with typical propagation delays of 10 ns at 5 V.
2. Wide Operating Voltage Range: Functions efficiently between 2 V to 6 V.
3. Low Power Consumption: Exhibits low power dissipation with a typical quiescent current of 1 µA.
4. 3-State Outputs: Allows for direct connection to bus lines, minimizing device count in a system.
5. Current Drive Capability: Provides a high drive output current of 6 mA at 5 V, suitable for driving LED indicators or other loads.
6. Input Protection: Features high input impedance and protection against static discharge.
7. Pinout Configuration: Includes 20 pins with two 4-bit buffers, organized for ease of use in applications requiring high-density data flow.
This device is commonly used in digital circuits for buffering and driving data signals, making it ideal for applications in computing and communication systems.
Pinout
Manufacturer
Application
1. Bus Driving: Facilitates data transfer between different parts of a circuit by driving data buses.
2. Signal Isolation: Provides isolation and buffering to prevent signal degradation in long transmission lines.
3. Logic Level Translation: Converts signals between different voltage levels, aiding in interfacing between components.
4. Memory Addressing: Used in systems where multiple devices share a common bus for addressing memory.
5. LED Display Control: Drives multiple segments or rows in LED displays.
6. Microcontroller Interfacing: Enhances the drive capability of microcontroller I/O pins.
These capabilities make it suitable for use in computers, communication equipment, and other digital applications.