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SN74LS145DR
+StücklisteIC DECODER 1 X 4:10 16SOIC
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HerstellerTexas Instruments
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Herstellerteil #SN74LS145DR
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Paket SOIC (D)-16
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Auf Lager5652
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Spezifikationen
| Attribut | Wert |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | 74LS |
| ProductStatus | Active |
| Type | Decoder |
| Circuit | 1 x 4:10 |
| IndependentCircuits | 1 |
| Current-OutputHighLow | -, 80mA |
| VoltageSupplySource | Single Supply |
| Voltage-Supply | 4.75V ~ 5.25V |
| OperatingTemperature | 0°C ~ 70°C |
| MountingType | Surface Mount |
| Package/Case | 16-SOIC (0.154, 3.90mm Width) |
Übersicht
Description
Key Features:
- Input: 4-bit BCD (Binary-Coded Decimal)
- Output: 10 active-low decoded outputs
- Supply Voltage: Typically 5V
- Low Power Consumption: Due to the Schottky logic
- High-Speed Operation: Faster than standard TTL
- Package: Available in SOIC-16 (Small Outline Integrated Circuit with 16 pins)
Applications for the SN74LS145DR include driving numerical displays, LED indicators, and as part of digital systems where BCD to decimal decoding is needed. Its ability to sink current makes it suitable for directly driving small loads like LED segments.
Equivalent
1. NTE74LS145 - NTE Electronics' equivalent.
2. SN74145N - Texas Instruments' older version.
3. MC14511BCP - On Semiconductor's version.
4. CD4511BE - Texas Instruments' CMOS equivalent.
These alternatives may vary slightly in voltage or current ratings, so it's essential to verify compatibility with your specific application.
Features
1. BCD to Decimal Decoding: Converts a 4-bit binary-coded decimal input into a one-of-ten output, suitable for driving 10-line displays.
2. Open-Collector Outputs: These can sink current, allowing for connection to a higher voltage output or LED displays.
3. High Fan-Out Capability: Supports driving multiple outputs due to open-collector configuration.
4. TTL Compatible: Operates comfortably within the TTL voltage levels for seamless integration into TTL-based systems.
5. Low Power Dissipation: The LS series is designed for reduced power consumption compared to older TTL series.
6. Compact Packaging: Available in small outline packages (SOIC), suitable for space-constrained applications.
This makes the SN74LS145DR suitable for applications requiring reliable BCD to decimal conversion with efficient power usage and space-saving benefits.
Pinout
Here is a concise breakdown of the pin functions:
1. Pins 1-4 (A, B, C, D): These are the BCD input pins. They accept a 4-bit binary-coded-decimal input.
2. Pin 5 (GND): Ground pin for the power supply.
3. Pins 6-13 (Y0-Y7): These are the active-low output pins, corresponding to decimal outputs 0-7.
4. Pin 14 (Y8): Active-low output pin for decimal output 8.
5. Pin 15 (Y9): Active-low output pin for decimal output 9.
6. Pin 16 (VCC): Power supply pin.
The SN74LS145DR decodes the binary input and activates one of the ten outputs, corresponding to the decimal equivalent of the BCD input, while all other outputs remain high.
Manufacturer
Application
1. Digital Displays: Driving LED displays by converting binary-coded decimal inputs to decimal outputs.
2. Data Decoding: Interfacing with microprocessors to decode binary data for various digital systems.
3. Multiplexing: Selecting one out of several data lines for transmission in data routing applications.
4. Control Systems: Used in devices requiring controlled actuation of circuits based on decoded input, such as in industrial control panels.
Its TTL logic compatibility and open-collector outputs make it suitable for a wide range of electronic projects and systems.