Need DIO for 3.3V outpus

[Rafi2003]

HI,
 
Please help me to select a DIO card.
 
The application actually requires only outputs, but the circuit uses only LVTTL (3.3V)
I need 24 or 32 outputs, very low frequency.
Natuarally, I'm looking for a cost effective solution.
 
Thanks
Rafi

[Rafi2003]

Thanks John, Philip and JB for your answeres,
While considering your suggestoins I'd like to ask for your openion on the 6527 as an option for my task.
This card uses isolating circuit  and I wonder if it could use 3.3V on the application circuit,
Refering to page 3-11 on the 6527 User Manual, there's an example of how to connect the isolated output to a 5V external supply with a 5Khm load resistor.
My questions is if same circuite can be used with 3.3V supply and 3.3Khm resistor?
 
Thanks and regards
Rafi

[Rafi2003]

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