7409 Quad 2-Input AND Gate IC
The 7409 Quad 2-Input AND Gate IC is a high-performance CMOS integrated circuit containing four independent 2-input AND gates. It features open-collector outputs that allow for flexible interfacing with other devices, including implementing logic-level output combinations. The device operates within a voltage supply range of 4.5V to 5.5V and offers low power consumption, making it ideal for a variety of digital logic applications.
Features:
- Contains four independent 2-input AND gates.
- Open-collector outputs for flexibility in logic-level interfacing.
- Wide voltage supply range from 4.5V to 5.5V.
- Low power consumption ideal for portable devices.
- High-speed switching for fast logic operations.
Specifications:
| Parameter | Value |
|---|---|
| Category | Integrated Circuits (ICs)/Logic/Gates and Inverters |
| Package | PDIP-14 |
| Logic Family | 74LS Series |
| Operating Temperature | 0℃~+70℃ |
| Input Logic Level – Low | 800mV |
| Input Logic Level – High | 2V |
| Propagation Delay | 35ns@5V,15pF |
| Voltage – Supply | 4.75V~5.25V |
| Number of Channels | 4 |
| Logic Type | AND Gate |
| Current – Output Low(IOL) | 8mA |
Pin Configuration:
| Pin No. | Pin Name | Description |
|---|---|---|
| 1 | A1 | Input 1 for Gate 1 |
| 2 | B1 | Input 2 for Gate 1 |
| 3 | Y1 | Output for Gate 1 |
| 4 | A2 | Input 1 for Gate 2 |
| 5 | B2 | Input 2 for Gate 2 |
| 6 | Y2 | Output for Gate 2 |
| 7 | A3 | Input 1 for Gate 3 |
| 8 | B3 | Input 2 for Gate 3 |
| 9 | Y3 | Output for Gate 3 |
| 10 | A4 | Input 1 for Gate 4 |
| 11 | B4 | Input 2 for Gate 4 |
| 12 | Y4 | Output for Gate 4 |
| 13 | VCC | Power supply |
| 14 | GND | Ground |
Footprint:
How To Use This Chip:
The 74HC09 comes in a 14-pin package, and you need to connect it to power before you can use it. Most 7400 ICs support a VCC voltage of 5V. One difference between the HC and LS versions of the chip is that the 74HC09 supports 2V to 6V, while the 74LS09 supports only 5V. Once it has power connected, you can use any of the four AND gates inside.
This chip has open collector outputs. That means you can only sink current, not source it.
Each gate output of the 74HC09 can sink about 4 mA when powered with 5V. While the 74LS09 can usually sink about 8 mA of current. These values can vary between manufacturers of the chip though.
Applications:
- General-purpose digital logic circuits.
- Microprocessor interfacing and signal conditioning.
- Timing circuits and pulse generation.
- Switching applications for logic control.
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