SN74LVC1G07DCKR datasheet pdf & price

SN74LVC1G07DCKR

The SN74LVC1G07DCKR is a single-channel buffer with an open-drain output. It’s perfect for low-power, high-speed applications. It runs on a supply voltage between 1.65V and 5.5V, so it’s flexible enough for different systems. The open-drain output makes it great for wired-AND logic, which is ideal for bus systems or connecting multiple devices. With a typical delay of just 5ns at 5V, it’s pretty fast. Plus, it sinks up to 32mA, which works for most common applications. It’s also energy-efficient, making it suitable for battery-powered systems. Whether you’re using TTL or CMOS logic, it’s a good fit. Operating in temperatures from -40°C to +125°C means it’s solid even in tough conditions. It’s widely used for tasks like signal isolation, level shifting, and working with open-drain buses like I2C.

SN74LVC1G07DCKR Pinout Map

Notes:

• Pin 1 (A): This is the input where you apply the logic signal. It can be HIGH or LOW, and the chip will buffer it to produce an output at Pin 3.

• Pin 2 (GND): Connect this to ground to complete the circuit.

• Pin 3 (O): The output, which is open-drain. It either sinks current (goes low) or stays floating (high impedance). If you’re connecting it to other logic or communication lines (like I2C), you’ll need a pull-up resistor.

• Pin 4 (VCC): The power pin, connected to a voltage source between 1.65V and 5.5V.

Since the output is open-drain, don’t forget that pull-up resistor for proper function, especially when connecting to other devices or buses. It works with both CMOS and TTL systems, so it’s pretty versatile for tasks like signal buffering or level shifting.

SN74LVC1G07DCKR Equivalent Buffer IC

Notes:

The SN74LVC1G07DCKR and 74LVC1G07DCKR are pretty much the same. Both are open-drain buffers with similar voltage ranges, current sinking capabilities, and speed, so you can swap them easily.

Now, the SN74LVC1G125DCKR is also an open-drain buffer, but it has a push-pull output. This is important depending on your needs. If your circuit needs an open-drain configuration, stick with the SN74LVC1G07DCKR. But if you need to drive a stronger output signal, the 74LVC1G125DCKR might be the better choice.

As for the 74LVC1G04DCKR, it’s a logic inverter with a push-pull output. It inverts the signal, which makes it different from a simple buffer. If you need signal inversion, it can work as a replacement, but if you just need buffering, it’s not a direct swap.

SN74LVC1G07DCKR Enableable Buffer Circuit

Here’s a simple way to understand the wired OR circuit you’re seeing, built with two SN74LVC1G07DCKR buffers. These buffers are open-drain types, meaning they only actively pull the line down—they don’t push it high. So, to get a high signal, you add a pull-up resistor externally.

The main idea behind “wired OR” is straightforward: you connect outputs from these two buffers together. If either input from your microcontroller or logic device goes low, the entire output line goes low. The pull-up resistor helps ensure the output stays high when neither buffer is pulling it down.

In practice, this setup gives you a neat logical OR effect: the output line stays high unless at least one input signal drops low.

SN74LVC1G07DCKR Signal Buffering Example

• Level Shifting (Voltage Compatibility): If you’re connecting a 3.3V logic MCU to a 5V system, the 3.3V output might not be enough for the 5V input. The SN74LVC1G07DCKR acts as a buffer, using a pull-up resistor to shift the signal up to 5V when the MCU sends a high signal. This ensures your 3.3V logic works with the 5V system, keeping things safe and reliable.

• Driving High-Current Loads: If your MCU needs to control a relay or motor that requires more current, the SN74LVC1G07DCKR can buffer the control signal. It can drive a transistor or MOSFET that switches the high-power load, protecting the MCU from direct high-current switching.