5409 is a logic gate circuit produced by National Semiconductor Corporation. It has 4 independent gates, each of which can perform the logic AND function. The output of this gate is an open-collector circuit, which requires external pull-up resistors to work properly.
This document provides a technical description of the 5409/DM7409 integrated circuit, which contains four independent gates performing the logic AND function. The device features open-collector outputs that require external pull-up resistors for proper logical operation.
The datasheet details absolute maximum ratings, recommended operating conditions, and electrical characteristics over temperature ranges. It also includes physical dimensions for three available package types: 14-Lead Ceramic Dual-In-Line (J), 14-Lead Molded Dual-In-Line (N), and 14-Lead Ceramic Flat (W).
| Supply Voltage (Min) | 4.5 V |
|---|---|
| Supply Voltage (Max) | 5.5 V |
| Low Level Output Current | 16 mA |
| Operating Free Air Temperature (5409) | -55°C to +125°C |
| Operating Free Air Temperature (DM7409) | 0°C to +70°C |
| Propagation Delay Time Low to High | 32 ns |
The device performs the logic AND function.
The absolute maximum rating for supply voltage is 7V.