If you are looking to design a product with a long life-time, one of the big questions you consider is component availability. Having to re-design in 3 years just to account for an end-of-life part is an unnecessary cost and drain on resources. Designing with a CPU module takes away a lot of this pain (and transfers it to us!). We manage the availability risk for the components that go into the module, and can re-design if necessary, while keeping the interface to your board the same as before.
The only really hard part to manage is the processor – without the i.MX25, we couldn’t really make Topaz! Fortunately, Freescale have a longevity program that clearly indicates how long a part will be supported for. In the case of the i.MX25, this is 15 years from launch. You can look this up here – filter on MX25 to find it quickly.
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