Dave Pahl
Vice President, Investor Relations at Texas Instruments
Welcome to the Texas Instruments' Fourth Quarter 2023 Earnings Release Conference Call. I am Dave Pahl, Head of Investor Relations, and I'm joined by our Chief Financial Officer, Rafael Lizardi. For any of you who missed the release, you can find it on our website at ti.com/ir. This call is being broadcast live over the web and can be accessed through our website. In addition, today's call is being recorded and will be available via replay on our website.
This call will include forward-looking statements that involve risks and uncertainties that could cause TI's results to differ materially from management's current expectations. We encourage you to review the notice regarding forward-looking statements contained in the earnings release published today, as well as TI's most recent SEC filings for a more complete description. I'd like to provide some information that's important for your calendars. Next week on Thursday, February 1st at 10 AM Central Time we'll have our capital management call.
Similar to what we've done in the past, Rafael, and I will summarize our progress and provide some insight into our business and our approach to capital allocation as we prepare for the opportunity ahead. Moving on today, we'll provide the following updates. First, I'll start with a quick overview of the quarter. Next, I'll provide insight into fourth quarter revenue results with some details of what we're seeing with respect to our end markets. I'll then provide an annual summary of revenue breakout by end market. And lastly, Rafael will cover the financial results and our guidance for the first quarter of 2024.
Starting with a quick overview of the quarter; revenue was $4.1 billion, a decrease of 10% sequentially and 13% from the same quarter a year ago. Analog revenue declined 12% year-over-year and Embedded Processing declined 10%. Our other segment declined 25% from the year ago quarter. Now, I'll provide some insight into our fourth quarter revenue by end market. Our results reflect increasing weakness in industrial and a sequential decline in automotive as customers work to reduce their inventory levels. Similar to last quarter our focus on sequential performance as it's more informative at this time. First, the Industrial market was down mid teens, as we saw that increasing weakness.
The Automotive market was down mid single digits after 3.5 years of very strong growth. Personal Electronics was about flat. And next, Communications Equipment was down low-single digits. And lastly, enterprise systems grew low single digits. In addition, as we do at the end of each calendar year, I'll describe our revenue by end market. As a percentage of revenue for 2023, Industrial was 40%, Automotive was 34%, Personal Electronics 15%, Communications Equipment 5%, Enterprise Systems 4%, and other was 2%.
In 2023, Industrial and Automotive combined made up 74% of TI's revenue up about 9 percentage points from 2022 and up from 42% in 2013. We see good opportunities in all of our markets, but we place additional strategic emphasis on Industrial and Automotive. Our Industrial and Automotive customers are increasingly turning to Analog and Embedded Technologies to make their end products, more reliable, more affordable and lower in power. These trends have resulted and will continue to result in growing chip content per application, which will drive faster growth compared to our other markets.
Rafael will now review profitability, capital management and our outlook.