How to substitute 74LVCC3245?

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tonyyy

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I am trying to build a project based on this hardware but I am not able to
find the ic 74LVCC3245. I red somewhere that this one can be subsitute by an HTC but
I don't know which one and how. could you please help?


Thanks a lot

**broken link removed**
 

Hi,

Cannot see a more available substitute, though RS, Farnells/Element14/Newark, Mouser and Digikey all stock them for around $1.
 

I am based in Italy and on RS cannot find it
 

Farnell has several hundred in stock in your area:

Farnell/Element14 TEXAS INSTRUMENTS - SN74LVCC3245APW - TRANSCEIVER, OCTAL, SMD, TSSOP24

What microcontroller do you intend to connect the ENC28J60?

If it is a 5v device, the ENC28J60 inputs are 5v tolerant, however you could use any inexpensive 5V CMOS chips with TTL level input buffers to provide the necessary level shifting to the 5v microcontroller inputs, such as the 74HCT08 or 74ACT125.

Reference: ENC28J60 Datasheet, Section: 2.5 I/O Levels, Page: 8

However if the microcontroller operates below 3v, you've got another issue.


BigDog
 

Wanted to create something like this:
**broken link removed**

So the PIC i already have is a PIC18FXXX.

So an 74HCT08 should work just fine. By the way I don't see on farnell enc28j60.

How I should interface the 74HCT08 between PIC and ENC28J60. Any schematic?

Thanks a lot.
 

tonyyy said:
Wanted to create something like this:
**broken link removed**

So the PIC i already have is a PIC18FXXX.
Click to expand...

If the PIC18FXXX is operating at 3.3v, not need for level translation.

If it is operating at 5v, you'll need to level shift at the PIC18FXXX inputs.


tonyyy said:
By the way I don't see on farnell enc28j60.
Click to expand...

There are ENC28J60 in several packages available in your area according to the same website:

Farnell/Element14 Prodotti trovati per “ENC28J60”

You can combine the order into one shipment.

tonyyy said:
How I should interface the 74HCT08 between PIC and ENC28J60. Any schematic?
Click to expand...


Actually there are example schematics in the ENC28J60 Datasheet, which is why I posted the link in my previous post.

It is amazing the information one can obtain from reading a devices datasheet. :lol:



BigDog
 

I see but you know sometime i see other components in other the schematics like resistors and capacitors that are not shown
in the datasheets which seem to be very logical diagram. Because of this sometime i missed some of them
and the board didnt' work.
 

Another under used resource, in my opinion, is the Microchip development and PICtail addon boards.

If you reference the product webpage for these on the Microchip website, you find the schematics and sample code which can easily be ported to your requirements

**broken link removed**

**broken link removed**

**broken link removed**

If you download the User Manual for the PICDEM.net 2 Board, you'll find a schematic for a similar project as you describe:

**broken link removed**


BigDog
 

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