Doubt on Converting the 3.6V output from DSP to 5V

Status
Not open for further replies.
S

sakthisudhursun

Newbie level 5
Joined
Jan 7, 2014
Messages
8
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Visit site
Activity points
62
I want to convert the output from DSP TMS 320F2812 (3.6V) to compatible with TLP250 (+5v)
what Digital IC family to be used as buffer either 74LS of 74HCT also tell me what is the difference between both?
I connected 74HCT04 my +5V power supply heatup
 

74HCT will "work" logically but the input PMOS will be
well lit up by (5V-3.3V=1.7V) at the logic high and high
Idd will result.

74LS will be happy enough, but give you a lousy VOH
and probably make what follows -it- unhappy instead.

Look for purpose-made level shifting inverters / buffers.
 
Dear Dick,

Can u give the details IC numbers of Purpose-made Level shifting inverters/buffer

Presently i am using 74LS04.

Also can u suggest me good material (Books or Notes) on Understanding how to connect different Logic families.
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…