SN54LS05 - Military 6-ch Open-Collector Inverter | TI
部品番号: SN54LS05 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.74 | $274.00 |
| 500 | $2.47 | $1,235.00 |
| 1,000 | $2.19 | $2,190.00 |
SN54LS05 概要
An inverter is a logic gate that outputs the logical complement of its input. The SN54LS05 specifically features open-collector outputs, meaning the output transistor's collector is left unconnected internally, requiring an external pull-up resistor to define the high-level output voltage. This allows the device to interface with different voltage domains and to implement wired-OR logic by connecting multiple outputs together. Open-collector outputs also enable driving loads such as relays, LEDs, and lamps directly, with appropriate current limiting.
Key features include six independent inverters, a wide operating temperature range of -55°C to 125°C, and compatibility with TTL logic levels. The open-collector outputs can sink up to 8 mA, and the device supports a supply voltage range of 4.5 V to 5.5 V. The military-grade qualification ensures reliability in defense and aerospace applications.
Technically, the SN54LS05 uses bipolar junction transistor (BJT) technology, providing fast switching speeds and robust output drive. The open-collector design allows for level shifting and bus communication, making it versatile for various logic interfacing tasks. The device is available in a 14-pin CDIP package, which offers excellent thermal and mechanical stability.
Typical applications include military electronics, industrial control systems, and any design requiring high-voltage or high-current logic interfacing. The SN54LS05 is often used to drive relays, lamps, and other loads, as well as to implement wired-OR logic in bus systems.
When designing with this device, ensure that pull-up resistors are properly sized to limit output current and to achieve the desired switching speed. The open-collector outputs require external pull-ups to VCC or another voltage rail, and the resistor value should be chosen based on the load capacitance and required rise time.
ドロップイン代替品: SN54LS05 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
SN54S05
✅ ドロップイン📋 参考代替品（カタログ未掲載）
SN74LS05
✅ ドロップイン📋 参考代替品（カタログ未掲載）
SN74S05
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MC54LS05
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
MC74LS05
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
SN54LS05 最大定格＆電気的特性
| Number of Channels | 6 |
| Supply Voltage Range | 4.5 V to 5.5 V |
| 出力タイプ | Open Collector |
| Logic Family | LS |
| 動作温度範囲 | -55°C to 125°C |
| Package Type | 14-CDIP |
| 実装タイプ | Through Hole |
| Output Current (Sink) | 8 mA |
| Input Voltage (High) | 2 V (min) |
| Input Voltage (Low) | 0.8 V (max) |
| RoHS ステータス | Compliant |
| Military Grade | Yes |
| ピン数 | 14 |
| Technology | Bipolar |
SN54LS05 ピン構成
| ピン 1 | 1A — Input of inverter 1 |
| ピン 2 | 1Y — Output of inverter 1 (open-collector) |
| ピン 3 | 2A — Input of inverter 2 |
| ピン 4 | 2Y — Output of inverter 2 (open-collector) |
| ピン 5 | 3A — Input of inverter 3 |
| ピン 6 | 3Y — Output of inverter 3 (open-collector) |
| ピン 7 | GND — Ground |
| ピン 8 | 4Y — Output of inverter 4 (open-collector) |
| ピン 9 | 4A — Input of inverter 4 |
| ピン 10 | 5Y — Output of inverter 5 (open-collector) |
| ピン 11 | 5A — Input of inverter 5 |
| ピン 12 | 6Y — Output of inverter 6 (open-collector) |
| ピン 13 | 6A — Input of inverter 6 |
| ピン 14 | VCC — Positive supply voltage (4.5V to 5.5V) |
主な用途
SN54LS05 の用途: 6 件s: Military Electronics, Industrial Control Systems, Wired-OR Logic, Level Shifting, Relay and Lamp Driving, Avionics and Aerospace.
Military Electronics
The SN54LS05 is designed for military-grade applications requiring reliable operation over -55°C to 125°C. Its open-collector outputs allow interfacing with high-voltage loads and implementing wired-OR logic in avionics and defense systems. The device's bipolar technology ensures robust performance in harsh environments, and its 8 mA sink capability can drive relays and indicators directly.
おすすめ
Industrial Control Systems
In industrial control, the SN54LS05 is used for logic-level conversion and driving loads such as relays and lamps. Its open-collector outputs can be pulled up to different voltages, enabling level shifting between 5-V logic and 24-V industrial signals. The wide temperature range and military-grade reliability make it suitable for factory automation and process control.
おすすめ
Wired-OR Logic
The SN54LS05's open-collector outputs allow multiple outputs to be connected together to implement wired-OR logic. This is useful in bus systems where multiple devices need to share a common line. The device can sink current from the bus, and an external pull-up resistor sets the high level. This configuration is common in interrupt lines and status signals.
おすすめ
Level Shifting
The SN54LS05 can shift logic levels between different voltage domains. By connecting the pull-up resistor to a higher voltage rail, the open-collector output can produce a high-level voltage that is higher than the device's supply. This enables interfacing 5-V logic with 12-V or 24-V systems, making it useful in mixed-voltage designs.
おすすめ
Relay and Lamp Driving
The open-collector outputs of the SN54LS05 can directly drive relays, lamps, and LEDs when the current is within the 8 mA sink capability. For higher currents, an external transistor or a driver IC like the ULN2803 can be used. The device's wide temperature range makes it suitable for automotive and industrial lighting applications.
おすすめ
Avionics and Aerospace
The SN54LS05 is qualified for military and aerospace applications, where reliability and wide temperature operation are critical. It is used in flight control systems, navigation equipment, and communication interfaces. The 14-CDIP package provides robust mechanical integrity, and the bipolar technology ensures consistent performance under extreme conditions.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: SN54LS05 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | SN54S05 | SN74LS05 | SN74S05 | MC54LS05 | MC74LS05 |
|---|---|---|---|---|---|---|
| Package | 14-CDIP | 14-CDIP | 14-SOIC | 14-SOIC | 14-CDIP | 14-SOIC |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Motorola | Motorola |
| Number of Channels | 6 | 6 | 6 | 6 | 6 | 6 |
| Supply Voltage Range | 4.5V to 5.5V | 4.5V to 5.5V | 4.75V to 5.25V | 4.75V to 5.25V | 4.5V to 5.5V | 4.75V to 5.25V |
| Output Type | Open Collector | Open Collector | Open Collector | Open Collector | Open Collector | Open Collector |
| Operating Temperature Range | -55°C to 125°C | -55°C to 125°C | 0°C to 70°C | 0°C to 70°C | -55°C to 125°C | 0°C to 70°C |
| Output Current (Sink) | 8 mA | 20 mA | 8 mA | 20 mA | 8 mA | 8 mA |
主な差別化要因
- Military-grade temperature range （vs SN74LS05)
- Higher output sink current （vs SN54S05)
- Lower power consumption （vs SN54S05)
設計ノート
Open-collector outputs require external pull-up resistors. Without them, the output cannot go high, and the logic level will be undefined. Choose pull-up resistor values based on the load capacitance and required rise time; typical values range from 1kΩ to 10kΩ.
For high-speed operation, keep pull-up resistors close to the device and minimize trace length to reduce parasitic capacitance. Use a ground plane to provide a low-impedance return path and reduce noise. Decouple the VCC pin with a 0.1µF ceramic capacitor placed as close as possible to the pin.
The SN54LS05 is specified for -55°C to 125°C. In high-temperature environments, ensure adequate airflow or heatsinking if driving multiple outputs at maximum current. The 14-CDIP package has a thermal resistance of approximately 100°C/W, so power dissipation should be limited to avoid exceeding the maximum junction temperature.
コンプライアンス情報
RoHS compliant per TI product page. Military-grade, not AEC-Q100 qualified.
