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SN74LS145N
+BOMIC DECODER 1 X 4:10 16DIP
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メーカーSTマイクロエレクトロニクス
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メーカー品番 #SN74LS145N
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パッケージ 16-DIP (0.300, 7.62mm)
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在庫状況3841
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| Package | Tube |
| 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 | Through Hole |
| Package/Case | 16-DIP (0.300, 7.62mm) |
概要
Description
Key features include:
1. BCD Input: Accepts a 4-bit binary-coded decimal input.
2. Decimal Outputs: Provides ten active-low outputs corresponding to the decimal digits 0-9.
3. TTL Compatible: Operates within the standard TTL voltage levels, making it easy to interface with other TTL components.
4. Open-Collector Outputs: Allows for wired-OR connections and operation with higher voltage levels.
5. Simple Operation: It simplifies the conversion from binary-coded decimal to decimal display, often used with 7-segment displays.
6. Package: Comes in a dual in-line package (DIP) for easy handling and integration into circuits.
The SN74LS145N is favored for its reliability, straightforward implementation, and ability to facilitate both educational and practical electronic projects.
Equivalent
Features
1. BCD to Decimal Conversion: It decodes a 4-bit binary-coded decimal (BCD) input into a decimal output.
2. Open-Collector Outputs: This allows for wired-OR configurations and high current sink capability, ideal for driving LEDs or relays.
3. Active Low Outputs: The outputs are active low, meaning they provide a low signal when the corresponding input BCD code is present.
4. High Current Drive: Capable of sinking up to 80 mA per output, making it suitable for driving various loads directly.
5. TTL Compatible: Designed to be compatible with TTL logic levels, ensuring easy integration with other TTL devices.
6. Wide Operating Temperature Range: Supports a range of 0°C to 70°C, making it suitable for various applications.
7. Supply Voltage: Operates typically at 5V, consistent with standard TTL levels.
These features make the SN74LS145N suitable for applications requiring BCD to decimal decoding with high current drive capability.
Pinout
Here is a brief outline of its pin configuration:
- Pins 1-4: BCD input bits (A, B, C, D).
- Pins 5-12: Decimal outputs (0-9 corresponding outputs).
- Pin 13: Ground (GND).
- Pin 14: Enable input (active low, must be low for the decoder to function).
- Pin 15: Not connected (NC).
- Pin 16: Supply voltage (Vcc).
In usage, the SN74LS145N will activate one output line corresponding to the BCD input while the other outputs remain inactive. The enable input must be low for the device to decode the inputs.