I am going to use the SM42HT47-1684A stepper motor, its datasheet is following: http://p.globalsources.com/IMAGES/PDT/SPEC/001/K1052328001.pdf
In the datasheet the rated voltage of the motor is 2.8 V.
I found a drive chip, which can achieve the required resolution, it is the following: http://www.st.com/web/en/resource/technical/document/datasheet/CD00255075.pdf
The minimum motor supply voltage in the drive chip is 8V. Does this mean, that the motor can't be directly driven from this chip? I have chosen this chip, because I'm going to use microstepping with 1/32 or 1/64 resolution. Is it recommended to look for an other drive with lower motor supply voltage?