4325 - iCE40 LP: How to calculate the internal pull up resistor value of an iCE40 LP 1K device?

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• 4686 - iCE 40: What is the recommended value for pull-up resistor on the&nbsp;user I/O&nbsp;pin of <b><font face="Courier">iCE40</font></b> devices?

  Solution: There is no recommended value for pull-up resistor on the user I/O pin, as it depends on the purpose of using the pin. If the pullup is to avoid keeping a pin floating, then any pull-up value is fine unless power is a requirement. In such ...

• 6996 - iCE40: Does Bank 3 have any internal pull-up resistors for iCE40?

  Details: GPIOs found in Banks have no internal pull-ups, only Banks 0-2 have internal pull-ups. Since they do not have any internal pull-up in Bank 3, we recommend tying the unused PIO pins in Bank 3 to a known logic or driving them with disabled ...

• 7160 - iCE40 Ultra/UltraLite: What are the configurable I/O pull-up resistance values for iCE40?

  Description: This article describes the 4 different configurations available for iCE40. Solution: There are 4 configurations for the pull up resistor of the iCE40: - 3P3K for 3.3kohm - 6P8K for 6.8kohm - 10K for 10kohm - 100k for the WEAKPULLUP This ...

• 247 - Is an external pull up required on the MachXO SleepN pin?

  The SleepN pin on the MachXO C devices is an enable for the internal regulator. When the SleepN pin is asserted low the regulator is turned off and the device is put in a low power state. An external pull up is recommended or you can tie the pin to ...

• 1997 - Power Manager II: What is the buffer type for the POWR1220AT8 JTAG TDO pin and what voltage should the pull-up resistor be tied to for this pin?<br>

  The JTAG TDO pin is an LVCMOS output that is referenced to the voltage applied to the VCCJ pin. The voltage reference for this pin is shown in note 1 to the Digital Specifications table on page 1-11 of the ispPAC-POWR1220AT8 data sheet. There is no ...