What decides the choice of value of pull up resistors in hall effect sensors?
I have flow sensing system with a hall effect sensor. I was facing some erratic behavior when trying to take out known volume from this sensor. Sometimes it would give out the desired volume in a particular pulse...
Hi,
I noticed that 4.7k ohm pull-up resistors are used in this circuit on the read/write memory pins: Saundby's MAG 85(scroll down to yellow text), but in other circuits where the read/write / io/m signals are decoded by the 74138 for example, pull-ups are not used? Is it because in the MAG 85...
Hello I need help with FPGA circuit design.
I'm using Xilinx Artix-7 XC7A35T.
Based on the datasheet/userguide, INIT_B pin must be connected to an external pull-up resistor (4.7kΩ) to ensure clean low to high transition.
However, based on the circuit below, we're also connecting the circuit to...
Hi there,
I wish to connect multiple i2c chips together on the same PCB board, these chips are DS1307, DS1621 and AT24C256.
My question is, do I need to put 6 x 4.7k pull-up resistor (2 resistor / chip) or 2 x would be Ok for those three chips as shared?
Also what will happen if I would...