Other Parts Discussed in Thread: HDC2080,
Dear Sir,
Is I2C protpcol between HDC1080 and HDC2080 the same?
Another question:
Why did TI introduce HDC2080 after HDC1080?
Thank you.
Best regards,
Ronald
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Hello Ronald,
The I2C protocol between the HDC1080 and the HDC2080 are compatible. However, the HDC2080 uses single byte registers and the HDC1080 uses two-byte registers. The register mapping has also changed with the HDC2080 in order to accommodate the additional features it has, and the 2080 has a second available slave address which depends on the connection of the ADDR pin.
To answer your second question, the HDC2080 was introduced as a lower power humidity sensing option and has improved performance over the 1080. The 2080 also includes programmable temperature and humidity thresholds, can be used with a 1.8V supply (more compatible with battery operated systems), and has a configurable interrupt.
Best Regards,
Brandon Fisher