It is not possible to use an auto-bidirectional translator for the SDI-12 data line.
You need a direction-controlled translator like the SN74LXC1T45. If your MCU uses separate input and output pins, add a series resistor at the output so that the MCU…
Pseudo open-drain outputs have an internal pull-up.
Open-drain outputs require pull-up resistors, but you already have them. Please note that an open-drain output can be used for level shifting by pulling up to a different voltage; you need a translator…
The worst case you have to design for is the maximum threshold, i.e., the input signal must reach 2 V.
For lower voltages, you need to use a level translator (e.g., SN74LXC1T45). If the input signal is not digital, consider a comparator.
No, TTL signals are just one of the voltages that are supported; this feature does not exclude other applications.
TTL signals do not have 5 V.
The LV-1T device can down-translate 5 V signals, but you could also use any buffer with overvoltage-tolerant…
1. Yes, the worst-case current is 1.5 mA. However, the typical current is much lower; the left curve below shows the characteristics of an LV1T input with a 5.0 V supply:
(Ignore the right curve; it's for devices without level shifting.)
2. If you…
Other Parts Discussed in Thread: SN74LXC1T45 , SN74AHCT1G126 , SN74LVC1G17 Hello guys,
One of my customers is looking for any device for SDI-12 bus or how to implement for it. Does TI have any device or document to implement SDI-12 bus?
About SDI-12 bus https…
Part Number: SN74AUP1G125 Other Parts Discussed in Thread: SN74LV245A , SN74AHC245 , SN74LXC1T45 Hi
Could you help suggest suitable product s
bidirectional single channel buffer
Vin max: 5.5V IOL: 40mA max.
Hi Clemens,
Just want to let you know the resistor fix works very well.
That SN74LXC1T45 is pretty new which is a better solution for low power approach. I will design 2 circuit as you have suggested and see how they fare.
Do you want me to close the thread…
For the clock signal, you could use any fixed-direction or direction-controlled level shifter, e.g., TXU0101, 2N7001T, or SN74LXC1T45/SN74LVC1T45.
Anyway, the TXS has edge accelerators, but otherwise it is a passive switch and has no DC drive strength…