BB expansion header- Level Shifter

[kunal mankodiya]

Dear Friends,

I am looking for a bi-directional level shifter (1.8 V to 3.3 V) for
SPI communication at BB expansion header. The ADC we are working with
is ADS1258 EVM (working with 3.3 V)

I am thinking to buy http://focus.ti.com/docs/prod/folders/print/txb0108.html

Does any body suggest other product or IC concerning this issue?

Thanks a lot,
Kunal

[Gerald Coley]

The TXS0108 series should be fine. There is also a TXB0108 that has different pullup configurations and may or may not be better suited for your specific application. It really depends on whether you need an external pullup or not. These are used on the Beagle for the I2C level shifting.

 

 

Gerald

[John (USP)]

> -----Original Message-----
> From: beagl...@googlegroups.com
> [mailto:beagl...@googlegroups.com] On Behalf Of kunal mankodiya
> Sent: Saturday, October 24, 2009 4:36 AM
> To: Beagle Board
> Subject: [beagleboard] BB expansion header- Level Shifter
>
>
> Dear Friends,
>
> I am looking for a bi-directional level shifter (1.8 V to 3.3 V) for
> SPI communication at BB expansion header. The ADC we are working with
> is ADS1258 EVM (working with 3.3 V)
>
> I am thinking to buy
http://focus.ti.com/docs/prod/folders/print/txb0108.html

I use TXS0108 for SPI level translation.

[Minh Thành]

Hi, TinCanTool uses 74AVC4T774 for level shifting on their Zippy.

--
Phan Minh Thành
R&P Forwarding - Trading Co., Ltd.
58/48 Nguyen Minh Hoang, Ward 12, Tan Binh District, HCMC, Viet Nam.
Cellphone: +84 972 046 096
Website: http://dientu.rpc.vn

[kunal mankodiya]

Thanks Gerald.

TXB0108 : 8-Bit Bidirectional Voltage-Level Translator with Auto
Direction Sensing and +/-15-kV ESD Protect
TXS0108 : 8-Bit Bidirectional Voltage-Level Translator For Open-Drain
And Push-Pull Application

You have recommended TXS0108.

But isn't TXB0108 Auto direction sensing useful here ?

Kunal

On Oct 24, 2:27 pm, Gerald Coley <ger...@beagleboard.org> wrote:
> The TXS0108 series should be fine. There is also a TXB0108 that has
> different pullup configurations and may or may not be better suited for your
> specific application. It really depends on whether you need an external
> pullup or not. These are used on the Beagle for the I2C level shifting.
>
> Gerald
>

[kunal mankodiya]

Thanks Guys. I ordered TXB0108.

[John (USP)]

> -----Original Message-----
> From: beagl...@googlegroups.com
> [mailto:beagl...@googlegroups.com] On Behalf Of kunal mankodiya
> Sent: Saturday, October 24, 2009 8:30 AM
> To: Beagle Board

> Subject: [beagleboard] Re: BB expansion header- Level Shifter
>
>
> Thanks Gerald.
>
> TXB0108 : 8-Bit Bidirectional Voltage-Level Translator with Auto
> Direction Sensing and +/-15-kV ESD Protect

Use this if the data direction changes, such as in an I2C bus.

> TXS0108 : 8-Bit Bidirectional Voltage-Level Translator For Open-Drain

Use this one for SPI since the direction of the signals are fixed. MOSI, CLK
& CS are all outputs from OMAP and MISO is an input.

[Robert Konieczny]

TXS0108E = ST2378E (the same functionality but slower)

[Cyril Gouit]

We are using MAX3378 (Maxim product), it's work very well for GPIO, UART, SPI (tested), and I²C (not tested)

2009/10/25 Robert Konieczny <rob.ko...@googlemail.com>

TXS0108E = ST2378E (the same functionality but slower)

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups "Beagle Board" group.
To post to this group, send email to beagl...@googlegroups.com
To unsubscribe from this group, send email to beagleboard...@googlegroups.com
For more options, visit this group at http://groups.google.com/group/beagleboard?hl=en
-~----------~----~----~----~------~----~------~--~---