Product Overview
TTL Hex Inverter Buffer with 30V High-Voltage Open-Collector Outputs
Condition
Used equipment pull. Package face markings are legible: Texas Instruments logo, 414 3QFK, and SN7406N. Evaluation: Visual inspection only. Function testing not performed.
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Product Overview
Texas Instruments SN7406N provides six independent inverting buffers with high-voltage open-collector outputs. Built for TTL logic systems, this driver handles output voltages up to 30 V, making it well-suited for driving indicator lamps, relays, and level-shifting circuits directly from standard 5V logic.
Key Features
- Six independent inverter circuits
- High-voltage open-collector outputs rated up to 30 V
- 40 mA maximum low-level output sink current
- Standard TTL input compatibility
- 5 V nominal supply voltage (4.75 V to 5.25 V operating range)
- 14-pin dual in-line package (DIP-14)
Applications
- Driving lamps, LEDs, and small relays directly from digital logic
- Level-shifting between 5V TTL systems and higher DC voltage rails
- Restoring and repairing vintage computers, arcade hardware, and industrial controllers
- Breadboard prototyping for electronics hobbyists and circuit experimenters
Frequently Asked Questions
What is the breakdown voltage rating for the output pins?
The open-collector outputs have a minimum breakdown rating of 30 V, allowing them to interface safely with loads operating above standard logic levels.
What package format does this chip use?
It is in a standard 14-pin plastic dual in-line package (PDIP-14) with 0.300-inch row spacing, fitting standard IC sockets and through-hole prototype boards.
Why buy a single pulled IC instead of a wholesale lot?
Replacing a failed gate on a legacy board only requires one reliable part without paying for unneeded bulk stock. Shipping is $8 flat rate, orders over $28 ship free, and orders leave our Idaho warehouse the same or next business day.
Standard TTL workhorses never really retire; they just wait for the right bench repair to put them back in the signal path.
