Sanjeev Aggarwal
Analyst · Richard Shannon from Craig-Hallum Capital
Thank you, Cassidy, and thanks, everyone, for joining us on the call today. During the first quarter, we delivered revenue of $14.4 million, at the high end of our guidance range of $13.5 million to $14.5 million. We delivered gross margin of 56.5% in the first quarter compared to 56.8% in Q1 2023. We ended the year with a cash balance of $34.8 million.
We are pleased by the progress we have made over the past few years with our Toggle MRAM solution, and as we continue to ramp up our lower-density products, we will have increased visibility for our STT-MRAM solutions. Looking ahead, we expect to see flattish product revenue in the second quarter compared to Q1 due to continued weakness in Asia Pacific and in industrial, consumer and auto end markets. However, we expect a ramp in our Toggle and STT-MRAM design wins in the second half of 2024.
Our PERSYST industrial STT-MRAM product line has demonstrated consistent strength as it has continued to gain momentum in terms of design wins. We continue to expect to begin translating these design wins into revenue starting in the second half of 2024.
Turning now to our radiation hard programs that we outlined last quarter. As we noted on our previous calls, we are engaged in 2 radiation hard programs using our STT-MRAM technology: the first related to an ad hoc 64-megabit STT-MRAM project and the second aimed at building a strategic radiation-hardened FPGA. We expect to continue recognizing revenue from the 64-megabit STT-MRAM project over the coming quarters. We successfully executed the deliverables for the strategic radiation hardened FPGA project in Q1. We expect this project to continue in 2024 with additional funding from the sponsors in the coming months and quarters.
During the quarter, we also signed an extension of a Toggle MRAM reliability project for radiation hard applications that we originally executed in the third quarter of 2023. As you may have seen, we recently announced that IBM selected our PERSYST 1-gigabit STT-MRAM solution for use in their new FlashCore module, the FCM4. This DDR4-like high-performance persistent memory ensures critical data integrity even during power loss. This reinforces deployment of STT-MRAM in data center storage applications.
Lastly, we recently submitted our application for the CHIPS and Science Act. While we do not know the exact timing for a decision, we remain optimistic that we will receive funding, which we plan to use for additional 200-millimeter Toggle and STT-MRAM capacity and improved capabilities. There are other grant opportunities that we are pursuing and hope to be able to share additional details as we move through the year.
Turning to our outlook for 2024. As we mentioned last quarter, we expect the year to be weighted more heavily towards the second half as we continue to experience a slower start to the year. This slower start can be attributed to continued economic weakness in Asia Pacific as well as higher interest rates, which have driven customers to focus on lean inventory practices, along with shifting project schedules for some government contracts. Despite these near-term challenges, we expect to bring in recognizing revenue from our new STT-MRAM design wins, a stabilization in customer and distributed inventories, and a gradual improvement in the Asia Pacific region.
Moreover, we are encouraged by our recent traction. We attended Embedded World in Nuremberg a few weeks ago where we introduced the PERSYST brand and had a full schedule of meetings with existing and potential distributors and customers. We came away from the show with significantly more leads than at last year's event.
I will now turn it over to our CFO, Anuj Aggarwal, who will take you through our first quarter financials and second quarter 2021 guidance. Anuj?