Rafael Lizardi
Senior Vice President and Chief Financial Officer at Texas Instruments
Thanks, Dave, and good afternoon, everyone. As Dave mentioned, first quarter revenue was $4.4 billion, down 11% from a year-ago. Gross profit in the quarter was $2.9 billion, or 65% of revenue. From a year ago, gross profit margin decreased 480 basis points.
Operating expenses in the quarter were $929 million, up 14% from a year ago and about as expected. On a trailing 12-month basis, operating expenses were $3.5 billion, or 18% of revenue. Operating profit was $1.9 billion in the quarter or 44% of revenue and was down 25% from a year-ago quarter. Net income in the first quarter was $1.7 billion or $1.85 per share. Earnings per share included a $0.03 benefit for items that were not in our original guide.
Let me now comment on our capital management results, starting with our cash generation. Cash flow from operations was $1.2 billion in the quarter and $7.7 billion on a trailing 12-month basis. Capital expenditures were $992 million in the quarter and $3.3 billion over the last 12 months. Free cash flow on a trailing 12-month basis was $4.4 billion.
In the quarter, we paid $1.1 billion in dividends and repurchase about $100 million of our stock. In total, we have returned $7.5 billion in the past 12 months. Our balance sheet remains strong with $9.5 billion of cash and short-term investments at the end of the first quarter. In the quarter, we issued $1.4 billion of debt. Total debt outstanding was $10.2 billion, with a weighted average coupon of 3.2%.
Inventory dollars were up $531 million from the prior quarter to $3.3 billion. And days were 195, up 38 days sequentially. For the second quarter, we expect TI revenue in the range of $4.17 billion to $4.53 billion, and earnings per share to be in the range of $1.62 to $1.88. Lastly, we continue to expect our 2023 effective tax rate to be about 13% to 14%.
In closing, we will stay focused in the areas that add value in the long-term. We continue to invest in our competitive advantages, which are manufacturing and technology, our broad product portfolio, reach of our channels and diverse and long-lived positions. We will continue to strengthen these advantages through disciplined capital allocation and by focusing on the best opportunities, which we believe will enable us to continue to deliver free cash flow per share growth over the long-term.
With that, let me turn it back to Dave.