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SN74LS245DWR
+物料清單IC TXRX NON-INVERT 5.25V 20SOIC
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製造商德州儀器
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製造商部分 #SN74LS245DWR
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有存貨7244
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正品保證
規格
| 屬性 | 價值 |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | 74LS |
| ProductStatus | Active |
| LogicType | Transceiver, Non-Inverting |
| NumberofElements | 1 |
| NumberofBitsperElement | 8 |
| OutputType | 3-State |
| Current-OutputHighLow | 15mA, 24mA |
| Voltage-Supply | 4.75V ~ 5.25V |
| OperatingTemperature | 0°C ~ 70°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 20-SOIC (0.295, 7.50mm Width) |
概述
Description
Key specifications include:
- Operating voltage range: 4.75V to 5.25V
- High-speed operation with low power consumption
- High noise immunity
- Current sinking capability: 24 mA
The SN74LS245DWR is housed in a 20-pin SOIC (Small Outline Integrated Circuit) package, making it suitable for surface-mount applications. It is commonly used in digital communication systems, microprocessor memory interfaces, and other digital applications requiring efficient bus interfacing. Its robust performance and reliable functionality make it a popular choice in designing efficient data flow systems.
Equivalent
1. 74HC245 - High-speed CMOS version with similar functionality.
2. 74HCT245 - TTL-compatible version of the HC245.
3. 74F245 - Fast TTL logic version.
4. 74ALS245 - Advanced low-power Schottky version.
5. 74ACT245 - CMOS technology with TTL-compatible inputs.
These alternatives may vary in speed, power consumption, and logic families, so verify compatibility with your specific application needs.
Features
1. Bidirectional Data Transfer: Allows for data flow in both directions between buses.
2. 3-State Outputs: Provides high-impedance states for bus isolation, enabling multiple devices to connect to a single bus without interference.
3. High-Speed Operation: Supports fast data transfer rates, suitable for high-performance applications.
4. TTL Compatibility: Designed to interface seamlessly with TTL logic levels.
5. Wide Supply Voltage Range: Typically operates at 4.75V to 5.25V, supporting standard 5V systems.
6. Current Drive Capability: Can drive up to 24 mA output current, suitable for driving LEDs or other low-power loads.
7. Package Options: Available in SOIC (DWR) package, suited for surface-mount applications.
8. Enable Function: Features an output enable pin for additional control over data flow.
These specifications make the SN74LS245DWR ideal for use in digital systems requiring reliable data transfer and bus control.
Pinout
Manufacturer
Application
1. Data Bus Isolation: Used for isolating different sections of a bus, allowing data transfer between microprocessors and memory or other peripherals.
2. Bidirectional Data Transfer: Facilitates communication between devices that operate at different voltage levels or require directional control.
3. Memory Addressing: Helps in the expansion of address lines in memory systems.
4. Peripheral Interfacing: Connects microcontrollers with ADCs, DACs, or other I/O devices.
5. Signal Integrity Improvement: Enhances the integrity of signals over long traces or in noisy environments.
These applications make it valuable in computer systems, embedded systems, and digital communication systems.