FAQs
English (US) 日本語 | Japanese 中文 | Chinese (Simplified)

VSTBY pin, when not used

cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Show  only  | Search instead for 
Did you mean: 

VSTBY pin, when not used

‎09-24-2008 10:43 PM
1,606 Views
efk
Contributor I
Hello,

I have a question regarding VSTBY pin of M5221x.
When we do not wish to use the standby power feature (i mean no battery on printed circuit board), i do not understand where to connect this pin.

Shall i connect it to 3,3V ?

Labels (1)
Labels
0 Kudos
Reply
3 Replies

‎09-26-2008 08:07 AM
558 Views
efk
Contributor I
After a Google research, i found this text in another PDF file (Freescale MPC5565 Microcontroller Data Sheet): "If standby operation is not required, VSTBY can be connected to ground"

So i think there is a good chance it is the same with the M5221x (?)



Message Edited by efk on 2008-09-26 09:07 AM
0 Kudos
Reply

‎09-28-2008 10:14 PM
558 Views
efk
Contributor I
Could you please tell my if my above question is dummy, or do the M5221x users always include the battery for VSTBY in their production pcb ?

0 Kudos
Reply

‎09-29-2008 07:26 AM
558 Views
efk
Contributor I
After more research, i found another Freescaler processor PDF file which says: "If standby operation is not required, connect VSTBY  to ground". It is the MPC5554 data sheet.
I will do the same with the M5221x.

0 Kudos
Reply