Xbee pro S2 input voltage

[ABSF]

Hi allen, if i use one voltage regulator, what logic chips should i use??

Thank you.

If only 3.3V is available, then you have to use Low Voltage Logic chips like

Fairchild low voltage logic, Fairchild Semiconductor - Global Leader in Power Optimization
http://www.fairchildsemi.com/products/logic/lowvolt/

3.3V Logic - STMicroelectronics
http://www.st.com/internet/analog/class/1533.jsp

Allen

[Lam]

Instead of using LM7805, you can use LM1117. it produce 3.3V.