Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

[SOLVED] How to Interface microcontrollers with Different Operating Voltages

Status
Not open for further replies.
G

gravi

Full Member level 2
Joined
May 30, 2006
Messages
128
Helped
10
Reputation
20
Reaction score
10
Trophy points
1,298
Location
Hyderabad, India
Activity points
2,452
Hi,

I am trying to interface Microcontroller operating with 3 Volts and Modem operating with 4.2 Volts using UART (Rx and Tx) lines. Can I interface them directly or do we need to use any circuit inbetween. Could you please suggest me any circuit to interface.

Thanking You,
Ravi Kumar G
 

A 3V uC with 5V tolerant inputs can work in this situation without additional level converters, e.g. 3V PIC18 or PIC24.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top