Is there a single-chip solution for 6 channels of up translation from
1.5V CMOS to 5V CMOS/TTL levels (other than using 1-1/2 LM393s and a half-dozen pullup resistors? Speed is not an issue; a few useconds woudl be fine.The apparently single-chip solutions seem to crap out at 3.x volts for the higher Vdd/Vcc.
Best regards, Spehro Pefhany
-- "it\'s the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com
Spehro, Have you tried a 3.3V to 5V translator? One with dual VDD's.
I'd expect that it would work *slowly* for 1.5V to 5V. As long as the lower VDD is at least 2*VT you can get away with it.
...Jim Thompson
-- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et |
You could use 6 discrete bipolar transistors, or a transistor array with
4.7K pullups from collector to +5, and a 4.7K resistor in series with each base. I would use SIPs for the resistors.Tam
These are cool parts, I might be able to find a way to use them by adding a supply rail etc.
The bus isolation feature is particularly handy.
Best regards, Spehro Pefhany
-- "it's the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com
NXP GTL2010
Nice chip and price, thanks. Sort of a pass-through with voltage limit device.
Best regards, Spehro Pefhany
-- "it\'s the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com
Yep. We've gone full circle, from a single gate on a chip, to millions of devices, back to a few gates.
Only difference is that now the devices are so small that the chip size is dictated by how much space it takes to get the bonding pads to fit ;-)
...Jim Thompson
-- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et |
Philips 74ALVC164245 at least mention possibility of 1.5 -> 5 V translation, though does not guarantee any timing characteristics.
-- WBR, Yuriy. "Resistance is futile"
What qty?
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