The M74LS145P is a BCD-to-Decimal Decoder manufactured by Mitsubishi. It's a monolithic integrated circuit constructed with Schottky TTL inputs and high-performance NPN output transistors. This decoder is designed to accept BCD (Binary Coded Decimal) inputs and provide corresponding decimal outputs. Each output is low when selected, making it suitable for driving indicators, relays, or other loads.

Applications

• Driving LED displays
• Numerical displays
• Relay driving
• Keyboard encoders
• Digital equipment

Features

• BCD to Decimal decoding
• Schottky TTL inputs for high speed
• High-performance NPN outputs
• Low output voltage when selected
• Fan-out of 10 LS-TTL loads
• Operating temperature range: 0°C to +70°C

Benefits

• Simplified digital circuit design: The device simplifies the process of converting BCD data to decimal format, which is essential in various display and control applications.
• High-speed operation: The Schottky TTL inputs enable fast decoding and response times, making it suitable for applications where speed is critical.
• Versatile output driving capability: The device's NPN transistor outputs can drive a variety of loads, including LEDs, relays, and other digital circuits.
• Improved system reliability: The integrated design reduces the number of discrete components, improving system reliability.

Additional Details

The M74LS145P operates from a 5V power supply and typically dissipates a small amount of power. It is available in a 16-pin DIP (Dual In-line Package). The input current is a maximum of -0.4mA for a low-level input and a maximum of 20uA for a high-level input. Output voltage low is a maximum of 0.5V.