DS160PR410: Internal Pull-Up Values on 4-Level Pins

Dallas Pace

Prodigy 130 points

Part Number: DS160PR410

Tool/software:

Various Pins on the DS160PR410 support 4-Level Pin strapping by using either:

1. 1K to Ground [L0]

2. 13K to Ground [L1]

3. Float [L2]

4. 59K to Ground [L3]

These External Resistors work in conjunction with some "Internal" Resistor to provide 4 Different Voltage Levels.

Leakage on these Pins are 10uA at 2.5V. That equates to 250K.

Is this the "Value" of the Internal Pull-Up used internal to the Device?

The Internal Resistor is a Pull-Up and "Not" a Pull-Down, Correct?

The Reason I'm asking this is "What" would happen if I placed an External 1M to "Approximate" the Floating Condition?

2 days ago

0 Undrea Fields 2 days ago

TI__Genius 11480 points

Hi,

There is an internal PU resistor for the 4-level strap pins.

Adding a 1M will be seen as an F(Float).

Regards,

Undrea

0 Dallas Pace 2 days ago

Prodigy 130 points

I just want to make sure about "Adding" the 1M Externally to the Package. One side of the 1M is going to one of the 4-Level Input Pins and the Other side of the 1M is tied to Ground. In this fashion, I have 1M to Ground on Each Pin. I can then Solder a 59K to Ground in Parallel to the 1M to Ground to achieve L3.

Again, with 1M to Ground I expect to achieve L2 and when I "Solder" a 59K to Ground in "Parallel" to the 1M to Ground, I will then achieve L3.

Do I have this correct?

Can you tell me "What" Value the Internal PU Resistor is inside the DS160PR410?

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DS160PR410: Internal Pull-Up Values on 4-Level Pins