Si1153 RevB parts (Si1153-AB00-GM, Si1153-AB09-GM, Si1153-AB9X-GM) are launched in September 2018.
Comparing to Si1153 RevA parts, the major change is in interrupt modes. Si1153 RevA parts only support interrupt on every sample and whenever the sample is larger than a set threshold, while Si1153 RevB parts support multiple interrupt modes listed below. The host can configure ADCPOSTx registers to set different interrupt modes.
Mode 1: Interrupt on every sample.
Mode 2. Interrupt whenever the sample is larger/smaller than a set threshold.
Mode 3. Interrupt whenever the sample enters/exits the set threshold window.
Si1153 RevB is pin compatible with Rev A and fully backwards compatible in terms of software programming. Existing customers can easily switch to RevB parts without any changes. New customers can make use of the new interrupt mode in certain applications to reduce power consumption.